{"id":36632,"date":"2025-05-11T08:56:01","date_gmt":"2025-05-11T00:56:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/36632.html"},"modified":"2025-05-11T08:56:01","modified_gmt":"2025-05-11T00:56:01","slug":"opc-da%e5%bc%80%e5%8f%91%e5%ae%9e%e6%88%98%ef%bc%9a%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e7%a8%8b%e5%ba%8f%e6%ba%90%e7%a0%81%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/36632.html","title":{"rendered":"OPC DA\u5f00\u53d1\u5b9e\u6218\uff1a\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6e90\u7801\u8be6\u89e3"},"content":{"rendered":"

\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p>\n

\u7b80\u4ecb：OPC DA（OLE for Process Control Data Access）\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7528\u4e8e\u4e0d\u540c\u8f6f\u786c\u4ef6\u7cfb\u7edf\u95f4\u6570\u636e\u4ea4\u6362\u7684\u6807\u51c6\u63a5\u53e3\u3002\u672c\u6307\u5357\u7b2c\u4e8c\u7ae0\u6df1\u5165\u89e3\u6790\u4e86OPC DA\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7a0b\u5e8f\u7684\u5f00\u53d1，\u6db5\u76d6\u4e86\u4ece\u670d\u52a1\u5668\u6ce8\u518c\u3001\u521d\u59cb\u5316\u3001\u63a5\u53e3\u5b9e\u73b0\u5230\u6570\u636e\u9879\u7ba1\u7406\u3001\u4e8b\u4ef6\u5904\u7406\u548c\u901a\u4fe1\u903b\u8f91\u7684\u5404\u4e2a\u65b9\u9762\u3002\u5f00\u53d1\u8005\u901a\u8fc7\u5b66\u4e60\u548c\u7406\u89e3\u8fd9\u4e9b\u6e90\u7801，\u5c06\u80fd\u591f\u66f4\u597d\u5730\u638c\u63e1OPC DA\u7684\u539f\u7406\u548c\u5b9e\u8df5，\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u9879\u76ee\u63d0\u4f9b\u9ad8\u6548\u7684\u6570\u636e\u4ea4\u6362\u80fd\u529b\u3002 <\/p>\n

1. OPC DA\u6807\u51c6\u6982\u8ff0 <\/h2>\n

OPC\u5386\u53f2\u80cc\u666f\u4e0e\u53d1\u5c55 <\/h3>\n

OPC（OLE for Process Control）\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u4e2d\u5e94\u7528\u5e7f\u6cdb\u7684\u901a\u4fe1\u6807\u51c6，\u6700\u521d\u4e8e1990\u5e74\u4ee3\u521d\u671f\u7531\u4e00\u4e9b\u5de5\u4e1a\u81ea\u52a8\u5316\u5de8\u5934\u521b\u7acb\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4e3a\u4e86\u4f7f\u4e0d\u540c\u7684\u5de5\u4e1a\u8bbe\u5907\u548c\u8f6f\u4ef6\u5e94\u7528\u4e4b\u95f4\u80fd\u591f\u8f7b\u677e\u4ea4\u6362\u6570\u636e，\u4ece\u800c\u5b9e\u73b0\u65e0\u7f1d\u96c6\u6210\u3002OPC DA（Data Access）\u6807\u51c6\u662fOPC\u7684\u7b2c\u4e00\u4e2a\u6838\u5fc3\u89c4\u8303，\u5141\u8bb8\u5b9e\u65f6\u5730\u8bbf\u95ee\u8fc7\u7a0b\u63a7\u5236\u6570\u636e\u3002 <\/p>\n

OPC DA\u7684\u5173\u952e\u7279\u70b9 <\/h3>\n

OPC DA\u57fa\u4e8e\u5fae\u8f6f\u7684COM（Component Object Model）\u6280\u672f\u6784\u5efa，\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u8de8\u5e73\u53f0\u3001\u8de8\u8bed\u8a00\u7684\u6570\u636e\u8bbf\u95ee\u80fd\u529b\u3002\u5b83\u7684\u5173\u952e\u7279\u70b9\u5305\u62ec： – \u5b9e\u65f6\u6570\u636e\u8bbf\u95ee ：\u80fd\u591f\u5feb\u901f\u5730\u4ece\u73b0\u573a\u8bbe\u5907\u83b7\u53d6\u6570\u636e\u3002 – \u6570\u636e\u4e00\u81f4\u6027 ：\u786e\u4fdd\u5ba2\u6237\u7aef\u8bfb\u53d6\u7684\u6570\u636e\u662f\u6700\u65b0\u3001\u6700\u51c6\u786e\u7684\u3002 – \u5e73\u53f0\u72ec\u7acb\u6027 ：\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u53ef\u4ee5\u5728\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u8fd0\u884c\u3002 <\/p>\n

OPC DA\u67b6\u6784\u89e3\u6790 <\/h3>\n

OPC DA\u91c7\u7528\u4e86\u7ecf\u5178\u7684C\/S\u67b6\u6784\u3002\u670d\u52a1\u5668\u8d1f\u8d23\u6570\u636e\u7684\u91c7\u96c6\u548c\u7ba1\u7406，\u800c\u5ba2\u6237\u7aef\u5219\u53ef\u4ee5\u8bfb\u53d6\u6216\u5199\u5165\u6570\u636e\u3002\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1\u57fa\u4e8e\u4e25\u683c\u7684\u63a5\u53e3\u5b9a\u4e49，\u8fd9\u5305\u62ec\u6570\u636e\u9879\u7684\u8bfb\u5199\u3001\u8ba2\u9605\u4ee5\u53ca\u4e8b\u4ef6\u7684\u5904\u7406\u3002 <\/p>\n

flowchart LR
\n subgraph Client
\n direction TB
\n App1["\u5ba2\u6237\u7aef\u5e94\u7528"]
\n App2["\u5ba2\u6237\u7aef\u5e94\u7528"]
\n end<\/p>\n

subgraph Server
\n direction TB
\n OPC["OPC\u670d\u52a1\u5668"]
\n Device["\u73b0\u573a\u8bbe\u5907"]
\n end<\/p>\n

App1 –>|\u6570\u636e\u8bfb\u53d6\/\u5199\u5165| OPC
\n App2 –>|\u6570\u636e\u8ba2\u9605\/\u4e8b\u4ef6\u901a\u77e5| OPC
\n OPC –>|\u63a7\u5236\u6307\u4ee4\/\u8bf7\u6c42| Device
\n Device –>|\u5b9e\u65f6\u6570\u636e| OPC<\/p>\n

\u901a\u8fc7\u8fd9\u79cd\u67b6\u6784，OPC DA\u786e\u4fdd\u4e86\u6570\u636e\u901a\u4fe1\u7684\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027，\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u63d0\u4f9b\u4e86\u4e00\u79cd\u53ef\u9760\u7684\u6570\u636e\u4ea4\u6362\u65b9\u5f0f\u3002 <\/p>\n

2. OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u6d41\u7a0b\u8be6\u89e3 <\/h2>\n

2.1 OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u89d2\u8272\u548c\u8981\u6c42 <\/h3>\n

2.1.1 \u5f00\u53d1\u89d2\u8272\u5b9a\u4f4d\u4e0e\u804c\u8d23 <\/h4>\n

\u5728OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u4e2d，\u89d2\u8272\u7684\u5b9a\u4f4d\u81f3\u5173\u91cd\u8981，\u4e0d\u540c\u7684\u89d2\u8272\u627f\u62c5\u7740\u4e0d\u540c\u7684\u8d23\u4efb\u548c\u4efb\u52a1\u3002\u9996\u5148，\u9879\u76ee\u7ba1\u7406\u8005\u9700\u8981\u5bf9\u6574\u4e2a\u9879\u76ee\u7684\u8fdb\u5ea6\u548c\u8d44\u6e90\u8fdb\u884c\u6709\u6548\u7ba1\u7406，\u786e\u4fdd\u5f00\u53d1\u6d41\u7a0b\u7b26\u5408\u9884\u7b97\u548c\u65f6\u95f4\u9650\u5236\u3002\u6280\u672f\u67b6\u6784\u5e08\u8d1f\u8d23\u8bbe\u8ba1\u6574\u4f53\u7684\u6280\u672f\u6846\u67b6，\u5e76\u5236\u5b9a\u76f8\u5e94\u7684\u5f00\u53d1\u6807\u51c6\u548c\u89c4\u8303\u3002 <\/p>\n

\u5f00\u53d1\u4eba\u5458\u5219\u662f\u5b9e\u73b0\u6280\u672f\u65b9\u6848\u7684\u6267\u884c\u8005，\u4ed6\u4eec\u9700\u5177\u5907\u624e\u5b9e\u7684\u7f16\u7a0b\u57fa\u7840\u548c\u5bf9OPC DA\u6807\u51c6\u7684\u6df1\u5165\u7406\u89e3\u3002\u6d4b\u8bd5\u5de5\u7a0b\u5e08\u8d1f\u8d23\u5bf9\u670d\u52a1\u5668\u7684\u529f\u80fd\u8fdb\u884c\u9a8c\u8bc1\u6d4b\u8bd5，\u786e\u4fdd\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002\u6700\u7ec8，\u6587\u6863\u7f16\u5199\u4eba\u5458\u9700\u7f16\u5199\u6e05\u6670\u3001\u8be6\u5c3d\u7684\u5f00\u53d1\u6587\u6863\u548c\u7528\u6237\u624b\u518c，\u4ee5\u4fbf\u5176\u4ed6\u4eba\u5458\u7406\u89e3\u548c\u7ef4\u62a4\u3002 <\/p>\n

\u6bcf\u4e2a\u89d2\u8272\u4e4b\u95f4\u7684\u7d27\u5bc6\u5408\u4f5c，\u662f\u786e\u4fddOPC DA\u670d\u52a1\u5668\u5f00\u53d1\u6210\u529f\u7684\u5173\u952e\u3002 <\/p>\n

2.1.2 \u529f\u80fd\u9700\u6c42\u5206\u6790\u4e0e\u5f00\u53d1\u76ee\u6807\u8bbe\u5b9a <\/h4>\n

\u5728\u8fdb\u884cOPC DA\u670d\u52a1\u5668\u5f00\u53d1\u4e4b\u524d，\u8fdb\u884c\u8be6\u5c3d\u7684\u9700\u6c42\u5206\u6790\u548c\u5f00\u53d1\u76ee\u6807\u8bbe\u5b9a\u662f\u4e0d\u53ef\u5ffd\u89c6\u7684\u73af\u8282\u3002\u9700\u6c42\u5206\u6790\u9636\u6bb5，\u5f00\u53d1\u56e2\u961f\u9700\u8981\u4e0e\u5ba2\u6237\u8fdb\u884c\u6df1\u5165\u7684\u6c9f\u901a，\u4e86\u89e3\u5ba2\u6237\u7684\u4e1a\u52a1\u9700\u6c42\u3001\u73b0\u6709\u7684\u7cfb\u7edf\u73af\u5883\u4ee5\u53ca\u5bf9OPC DA\u670d\u52a1\u5668\u7684\u7279\u5b9a\u8981\u6c42\u3002 <\/p>\n

\u5f00\u53d1\u76ee\u6807\u7684\u8bbe\u5b9a\u5e94\u8be5\u57fa\u4e8e\u9700\u6c42\u5206\u6790\u7684\u7ed3\u679c，\u660e\u786e\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u9700\u8981\u5b9e\u73b0\u7684\u5173\u952e\u529f\u80fd\u3002\u8fd9\u4e9b\u529f\u80fd\u901a\u5e38\u5305\u62ec\u8bbe\u5907\u8fde\u63a5\u3001\u6570\u636e\u8bbf\u95ee\u3001\u5b89\u5168\u673a\u5236\u3001\u65e5\u5fd7\u8bb0\u5f55\u4ee5\u53ca\u5f02\u5e38\u5904\u7406\u7b49\u3002\u5f00\u53d1\u76ee\u6807\u8fd8\u5e94\u5305\u62ec\u6027\u80fd\u6307\u6807，\u5982\u54cd\u5e94\u65f6\u95f4\u3001\u541e\u5410\u91cf\u4ee5\u53ca\u5e76\u53d1\u8fde\u63a5\u6570\u7b49\u3002 <\/p>\n

\u76ee\u6807\u7684\u8bbe\u5b9a\u9700\u8981\u79d1\u5b66\u548c\u5408\u7406，\u65e2\u4e0d\u80fd\u8fc7\u4e8e\u7b80\u5355，\u5bfc\u81f4\u65e0\u6cd5\u6ee1\u8db3\u5b9e\u9645\u5e94\u7528\u573a\u666f，\u4e5f\u4e0d\u80fd\u8fc7\u4e8e\u590d\u6742，\u9020\u6210\u8d44\u6e90\u7684\u6d6a\u8d39\u548c\u9879\u76ee\u5ef6\u671f\u3002 <\/p>\n

2.2 OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u524d\u671f\u51c6\u5907 <\/h3>\n

2.2.1 \u73af\u5883\u642d\u5efa\u4e0e\u5f00\u53d1\u5de5\u5177\u9009\u62e9 <\/h4>\n

\u5f00\u53d1OPC DA\u670d\u52a1\u5668\u4e4b\u524d，\u9996\u5148\u9700\u8981\u642d\u5efa\u4e00\u4e2a\u9002\u5408\u7684\u5f00\u53d1\u73af\u5883\u3002\u9009\u62e9\u4e00\u4e2a\u7a33\u5b9a\u7684\u5f00\u53d1\u5e73\u53f0\u662f\u57fa\u7840，\u4f8b\u5982Windows\u64cd\u4f5c\u7cfb\u7edf\u56e0\u4e3a\u5176\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u826f\u597d\u7684\u517c\u5bb9\u6027，\u5e38\u5e38\u6210\u4e3a\u5f00\u53d1\u6b64\u7c7b\u670d\u52a1\u5668\u7684\u9996\u9009\u3002 <\/p>\n

\u5f00\u53d1\u5de5\u5177\u7684\u9009\u62e9\u4e5f\u5341\u5206\u91cd\u8981，Visual Studio\u662f\u8bb8\u591a\u5f00\u53d1\u8005\u7684\u9009\u62e9，\u5b83\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5f00\u53d1\u548c\u8c03\u8bd5\u5de5\u5177\u3002\u6b64\u5916，\u8fd8\u9700\u8981\u5b89\u88c5OPC DA\u76f8\u5173\u7684\u5f00\u53d1\u5305\u548cSDK，\u8fd9\u4e9b\u8d44\u6e90\u901a\u5e38\u53ef\u4ee5\u4eceOPC Foundation\u7684\u5b98\u65b9\u7f51\u7ad9\u83b7\u53d6\u3002 <\/p>\n

\u9664\u4e86\u5f00\u53d1\u73af\u5883\u548c\u5de5\u5177\u4e4b\u5916，\u914d\u7f6e\u6570\u636e\u5e93\u548c\u4e2d\u95f4\u4ef6\u4e5f\u662f\u5e38\u89c1\u7684\u51c6\u5907\u6b65\u9aa4\u3002\u6570\u636e\u5e93\u7528\u4e8e\u5b58\u50a8\u670d\u52a1\u5668\u7684\u914d\u7f6e\u4fe1\u606f\u548c\u5386\u53f2\u6570\u636e，\u800c\u4e2d\u95f4\u4ef6\u5219\u8d1f\u8d23\u5b9e\u73b0\u6570\u636e\u7684\u91c7\u96c6\u548c\u5904\u7406\u3002 <\/p>\n

2.2.2 OPC\u6807\u51c6\u89c4\u8303\u5b66\u4e60\u4e0e\u7406\u89e3 <\/h4>\n

\u5b66\u4e60\u548c\u7406\u89e3OPC DA\u6807\u51c6\u662f\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6b65\u9aa4\u3002OPC\u6807\u51c6\u6587\u6863\u63d0\u4f9b\u4e86\u63a5\u53e3\u5b9a\u4e49\u3001\u6570\u636e\u6a21\u578b\u4ee5\u53ca\u901a\u4fe1\u534f\u8bae\u7684\u8be6\u7ec6\u8bf4\u660e\u3002\u5f00\u53d1\u8005\u9700\u8981\u6df1\u5165\u7814\u7a76\u8fd9\u4e9b\u6587\u6863，\u638c\u63e1OPC DA\u7684\u7ed3\u6784\u3001\u6570\u636e\u7c7b\u578b\u3001\u63a5\u53e3\u65b9\u6cd5\u7b49\u5173\u952e\u5185\u5bb9\u3002 <\/p>\n

\u7406\u89e3OPC\u7684COM\u57fa\u7840\u4e5f\u5341\u5206\u5173\u952e，\u56e0\u4e3aOPC DA\u89c4\u8303\u5efa\u7acb\u5728COM\u6280\u672f\u4e4b\u4e0a\u3002\u5f00\u53d1\u8005\u9700\u8981\u5bf9COM\u6709\u6df1\u5165\u7684\u8ba4\u8bc6，\u5305\u62ecCOM\u7684\u63a5\u53e3\u3001\u7ec4\u4ef6\u5bf9\u8c61\u6a21\u578b\u4ee5\u53ca\u6ce8\u518c\u8868\u64cd\u4f5c\u7b49\u3002 <\/p>\n

\u6b64\u5916，\u8fd8\u9700\u8981\u5173\u6ce8OPC DA\u7684\u5b89\u5168\u673a\u5236，\u4e86\u89e3\u5982\u4f55\u901a\u8fc7\u8ba4\u8bc1\u3001\u52a0\u5bc6\u548c\u6388\u6743\u6765\u4fdd\u969c\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u5b66\u4e60\u6807\u51c6\u89c4\u8303\u7684\u8fc7\u7a0b\u4e2d，\u5e94\u8be5\u6ce8\u91cd\u7406\u8bba\u4e0e\u5b9e\u8df5\u76f8\u7ed3\u5408，\u901a\u8fc7\u5b9e\u9645\u7f16\u7801\u52a0\u6df1\u7406\u89e3\u3002 <\/p>\n

\u5728\u5b66\u4e60OPC\u6807\u51c6\u7684\u540c\u65f6，\u5f00\u53d1\u8005\u4e5f\u53ef\u4ee5\u53c2\u8003\u4e00\u4e9b\u5f00\u6e90\u7684OPC DA\u670d\u52a1\u5668\u5b9e\u73b0\u548c\u6587\u6863，\u8fd9\u53ef\u4ee5\u4f5c\u4e3a\u5b66\u4e60\u548c\u5b9e\u8df5\u7684\u53c2\u8003\u3002 <\/p>\n

2.2.3 \u73af\u5883\u914d\u7f6e\u793a\u4f8b\u4ee3\u7801 <\/h4>\n

\u4e0b\u9762\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801，\u5c55\u793a\u5982\u4f55\u5728Windows\u73af\u5883\u4e0b\u914d\u7f6e\u4e00\u4e2a\u57fa\u672c\u7684\u5f00\u53d1\u73af\u5883\u3002 <\/p>\n

@echo off
\nREM \u5b89\u88c5\u5f00\u53d1\u73af\u5883
\nREM \u4e0b\u8f7d\u5e76\u5b89\u88c5Microsoft Visual Studio Community Edition
\nREM \u4e0b\u8f7d\u5e76\u5b89\u88c5OPC Foundation\u63d0\u4f9b\u7684OPC DA SDK<\/p>\n

REM \u8bbe\u7f6e\u73af\u5883\u53d8\u91cf
\nSET OPCSdkPath=C:\\\\Program Files\\\\OPC Foundation\\\\OPCDA\\\\SDK\\\\
\nSET VisualStudioPath=C:\\\\Program Files (x86)\\\\Microsoft Visual Studio\\\\2019\\\\Community<\/p>\n

REM \u9a8c\u8bc1\u73af\u5883\u53d8\u91cf\u8bbe\u7f6e\u662f\u5426\u6210\u529f
\necho %OPCSdkPath%
\necho %VisualStudioPath%<\/p>\n

REM \u542f\u52a8Visual Studio，\u521b\u5efa\u65b0\u7684OPC DA\u9879\u76ee
\nstart "" "%VisualStudioPath%\\\\devenv.exe"<\/p>\n

\u4e0a\u8ff0\u4ee3\u7801\u662f\u6279\u5904\u7406\u811a\u672c，\u7528\u4e8e\u5728Windows\u73af\u5883\u4e0b\u81ea\u52a8\u5316\u5b89\u88c5\u548c\u914d\u7f6e\u5f00\u53d1\u73af\u5883\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u8def\u5f84\u548c\u7248\u672c\u53f7，\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5f00\u53d1\u73af\u5883\u914d\u7f6e\u9700\u6c42\u3002\u5728\u6267\u884c\u524d，\u8bf7\u786e\u4fdd\u6240\u6709\u8def\u5f84\u548c\u6587\u4ef6\u540d\u4e0e\u5b9e\u9645\u73af\u5883\u76f8\u7b26\u3002 <\/p>\n

2.3 \u529f\u80fd\u9700\u6c42\u5206\u6790\u4e0e\u5f00\u53d1\u76ee\u6807\u8bbe\u5b9a <\/h3>\n

2.3.1 \u9700\u6c42\u6536\u96c6\u4e0e\u5206\u6790\u65b9\u6cd5 <\/h4>\n

\u5728OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u4e2d，\u9700\u6c42\u6536\u96c6\u4e0e\u5206\u6790\u662f\u786e\u4fdd\u9879\u76ee\u6210\u529f\u7684\u5173\u952e\u3002\u9996\u5148，\u4e0e\u4e1a\u52a1\u56e2\u961f\u548c\u6700\u7ec8\u7528\u6237\u8fdb\u884c\u6709\u6548\u6c9f\u901a，\u4e86\u89e3\u4ed6\u4eec\u5bf9\u6570\u636e\u8bbf\u95ee\u7684\u5177\u4f53\u9700\u6c42\u3002\u7136\u540e，\u53ef\u4ee5\u91c7\u7528\u95ee\u5377\u8c03\u67e5\u3001\u8bbf\u8c08\u3001\u5de5\u4f5c\u574a\u7b49\u65b9\u6cd5，\u5e2e\u52a9\u56e2\u961f\u6355\u6349\u548c\u660e\u786e\u8fd9\u4e9b\u9700\u6c42\u3002 <\/p>\n

\u9700\u6c42\u5206\u6790\u9700\u8981\u5173\u6ce8\u51e0\u4e2a\u6838\u5fc3\u8981\u7d20：\u6570\u636e\u7684\u7c7b\u578b\u548c\u5927\u5c0f\u3001\u6570\u636e\u8bbf\u95ee\u7684\u9891\u7387\u3001\u5b89\u5168\u548c\u8ba4\u8bc1\u7684\u9700\u6c42\u3001\u5bf9\u9519\u8bef\u5904\u7406\u548c\u65e5\u5fd7\u8bb0\u5f55\u7684\u8981\u6c42\u7b49\u3002\u6b64\u5916，\u8fd8\u9700\u8981\u8003\u8651OPC DA\u670d\u52a1\u5668\u5c06\u5982\u4f55\u4e0e\u73b0\u6709\u7684\u7cfb\u7edf\u96c6\u6210，\u4ee5\u53ca\u662f\u5426\u9700\u8981\u652f\u6301\u8fdc\u7a0b\u8bbf\u95ee\u548c\u914d\u7f6e\u3002 <\/p>\n

\u6536\u96c6\u5230\u7684\u9700\u6c42\u5e94\u8be5\u901a\u8fc7\u6587\u6863\u8fdb\u884c\u8be6\u7ec6\u8bb0\u5f55，\u5e76\u4e14\u9700\u6c42\u6587\u6863\u5e94\u8be5\u5177\u6709\u53ef\u8ffd\u8e2a\u6027，\u4ee5\u4fbf\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u4e0d\u65ad\u5ba1\u67e5\u548c\u66f4\u65b0\u3002 <\/p>\n

2.3.2 \u8bbe\u5b9a\u5177\u4f53\u5f00\u53d1\u76ee\u6807 <\/h4>\n

\u5177\u4f53\u5f00\u53d1\u76ee\u6807\u7684\u8bbe\u5b9a\u5e94\u5f53\u57fa\u4e8e\u9700\u6c42\u5206\u6790\u7684\u7ed3\u679c，\u5e76\u660e\u786e\u5728\u9879\u76ee\u8ba1\u5212\u4e2d\u3002\u4e00\u4e2a\u5177\u4f53\u7684\u76ee\u6807\u5e94\u5f53\u662fSMART\u7684，\u5373\u5177\u4f53（Specific）\u3001\u53ef\u6d4b\u91cf（Measurable）\u3001\u53ef\u5b9e\u73b0（Achievable）\u3001\u76f8\u5173\u6027（Relevant）\u548c\u65f6\u9650\u6027（Time-bound）\u3002 <\/p>\n

\u4f8b\u5982，\u4e00\u4e2a\u5f00\u53d1\u76ee\u6807\u53ef\u4ee5\u662f\u201c\u57286\u4e2a\u6708\u5185\u5f00\u53d1\u51fa\u652f\u6301\u81f3\u5c111000\u4e2a\u6570\u636e\u70b9\u8bbf\u95ee\u7684OPC DA\u670d\u52a1\u5668，\u5e76\u4e14\u5b9e\u73b0\u6570\u636e\u52a0\u5bc6\u4f20\u8f93\u201d\u3002\u8fd9\u6837\u7684\u76ee\u6807\u660e\u786e\u4e86\u65f6\u95f4\u9650\u5236\u3001\u6027\u80fd\u6307\u6807\u548c\u5b89\u5168\u8981\u6c42，\u4e3a\u5f00\u53d1\u56e2\u961f\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u884c\u52a8\u6307\u5357\u3002 <\/p>\n

\u5728\u8bbe\u5b9a\u76ee\u6807\u7684\u540c\u65f6，\u8fd8\u9700\u8981\u8003\u8651\u8d44\u6e90\u5206\u914d\u3001\u98ce\u9669\u8bc4\u4f30\u4ee5\u53ca\u5907\u9009\u65b9\u6848\u7684\u51c6\u5907\u3002\u5e94\u5bf9\u53ef\u80fd\u51fa\u73b0\u7684\u96be\u9898\u63d0\u524d\u505a\u597d\u89c4\u5212，\u786e\u4fdd\u9879\u76ee\u80fd\u591f\u6309\u8ba1\u5212\u987a\u5229\u63a8\u8fdb\u3002 <\/p>\n

2.4 \u5f00\u53d1\u5de5\u5177\u4e0e\u8d44\u6e90\u51c6\u5907 <\/h3>\n

2.4.1 \u5f00\u53d1\u73af\u5883\u642d\u5efa <\/h4>\n

\u5f00\u53d1\u73af\u5883\u7684\u642d\u5efa\u5bf9\u4e8e\u4fdd\u8bc1OPC DA\u670d\u52a1\u5668\u7684\u8d28\u91cf\u548c\u5f00\u53d1\u8fdb\u5ea6\u81f3\u5173\u91cd\u8981\u3002\u5f00\u53d1\u56e2\u961f\u9700\u8981\u51c6\u5907\u5982\u4e0b\u8d44\u6e90： <\/p>\n

  • \n

    \u786c\u4ef6\u8d44\u6e90：\u786e\u4fdd\u6240\u6709\u5f00\u53d1\u673a\u5668\u7684\u914d\u7f6e\u8db3\u591f\u5f3a\u5927，\u53ef\u4ee5\u652f\u6301\u7f16\u8bd1\u548c\u8fd0\u884c\u5927\u578b\u9879\u76ee\u3002\u63a8\u8350\u81f3\u5c11\u4f7f\u7528i7\u5904\u7406\u5668\u300116GB RAM\u548cSSD\u786c\u76d8\u7684\u914d\u7f6e\u3002 <\/p>\n<\/li>\n

  • \n

    \u8f6f\u4ef6\u8d44\u6e90：\u5b89\u88c5\u6700\u65b0\u7684\u64cd\u4f5c\u7cfb\u7edf（\u4f8b\u5982Windows 10），\u5b89\u88c5Visual Studio Community Edition，\u4ee5\u53caOPC Foundation\u63d0\u4f9b\u7684OPC DA SDK\u3002 <\/p>\n<\/li>\n

  • \n

    \u7f51\u7edc\u8d44\u6e90：\u786e\u4fdd\u5f00\u53d1\u673a\u5668\u53ef\u4ee5\u8fde\u63a5\u5230\u4e92\u8054\u7f51，\u4ee5\u4fbf\u4e0b\u8f7d\u6700\u65b0\u7248\u672c\u7684\u5f00\u53d1\u5de5\u5177\u548cSDK，\u4ee5\u53ca\u8bbf\u95eeOPC Foundation\u7684\u5b98\u65b9\u7f51\u7ad9\u83b7\u53d6\u6280\u672f\u8d44\u6599\u3002 <\/p>\n<\/li>\n

  • \n

    \u5b89\u5168\u8d44\u6e90：\u51c6\u5907\u5fc5\u8981\u7684\u5b89\u5168\u8f6f\u4ef6\u548c\u63aa\u65bd，\u4fdd\u8bc1\u5f00\u53d1\u73af\u5883\u7684\u5b89\u5168，\u9632\u6b62\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u3002 <\/p>\n<\/li>\n

    2.4.2 \u5f00\u53d1\u6587\u6863\u548c\u8d44\u6e90 <\/h4>\n

    \u5728\u5f00\u53d1OPC DA\u670d\u52a1\u5668\u65f6，\u6587\u6863\u8d44\u6e90\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002\u4ee5\u4e0b\u662f\u4e3b\u8981\u9700\u8981\u51c6\u5907\u7684\u6587\u6863\u8d44\u6e90： <\/p>\n

  • \n

    OPC DA\u6807\u51c6\u6587\u6863：\u8be6\u7ec6\u4ecb\u7ecd\u4e86OPC DA\u670d\u52a1\u5668\u7684\u6807\u51c6\u89c4\u8303，\u5f00\u53d1\u8005\u5fc5\u987b\u6df1\u5165\u5b66\u4e60\u548c\u7406\u89e3\u3002 <\/p>\n<\/li>\n

  • \n

    \u6280\u672f\u767d\u76ae\u4e66：\u63d0\u4f9b\u4e86\u6280\u672f\u5b9e\u73b0\u7684\u6982\u8ff0，\u5e2e\u52a9\u56e2\u961f\u5feb\u901f\u7406\u89e3\u9879\u76ee\u7684\u6574\u4f53\u6846\u67b6\u548c\u6280\u672f\u7ec6\u8282\u3002 <\/p>\n<\/li>\n

  • \n

    \u5f00\u53d1\u6307\u5357：\u5305\u542b\u5bf9\u5f00\u53d1\u73af\u5883\u642d\u5efa\u3001SDK\u4f7f\u7528\u3001\u63a5\u53e3\u5b9e\u73b0\u7b49\u7684\u8be6\u7ec6\u6307\u5bfc\u3002 <\/p>\n<\/li>\n

  • \n

    \u6d4b\u8bd5\u6848\u4f8b：\u7528\u4e8e\u9a8c\u8bc1\u670d\u52a1\u5668\u5b9e\u73b0\u662f\u5426\u7b26\u5408OPC DA\u6807\u51c6\u3002 <\/p>\n<\/li>\n

  • \n

    \u7528\u6237\u624b\u518c：\u6307\u5bfc\u7528\u6237\u5982\u4f55\u5b89\u88c5\u3001\u914d\u7f6e\u548c\u4f7f\u7528OPC DA\u670d\u52a1\u5668\u3002 <\/p>\n<\/li>\n

    \u5728\u51c6\u5907\u6587\u6863\u8d44\u6e90\u7684\u8fc7\u7a0b\u4e2d，\u53ef\u4ee5\u4f7f\u7528Markdown\u683c\u5f0f\u7ec4\u7ec7\u5185\u5bb9，\u5229\u7528\u7248\u672c\u63a7\u5236\u7cfb\u7edf\u5982Git\u8fdb\u884c\u6587\u6863\u7684\u7ba1\u7406，\u4ee5\u4fdd\u8bc1\u56e2\u961f\u6210\u5458\u53ef\u4ee5\u5b9e\u65f6\u66f4\u65b0\u548c\u8bbf\u95ee\u6700\u65b0\u7684\u6587\u6863\u8d44\u6599\u3002 <\/p>\n

    2.5 \u89c4\u5212\u5f00\u53d1\u8fdb\u5ea6\u4e0e\u91cc\u7a0b\u7891 <\/h3>\n

    2.5.1 \u5236\u5b9a\u5f00\u53d1\u8ba1\u5212 <\/h4>\n

    \u5f00\u53d1\u8ba1\u5212\u662f\u6307\u5bfc\u6574\u4e2aOPC DA\u670d\u52a1\u5668\u5f00\u53d1\u8fc7\u7a0b\u7684\u84dd\u56fe，\u5b83\u9700\u8981\u660e\u786e\u6bcf\u4e2a\u9636\u6bb5\u7684\u4efb\u52a1\u3001\u6240\u9700\u65f6\u95f4\u4ee5\u53ca\u9884\u671f\u76ee\u6807\u3002\u5728\u5236\u5b9a\u5f00\u53d1\u8ba1\u5212\u65f6，\u53ef\u4ee5\u91c7\u7528\u654f\u6377\u5f00\u53d1\u7684\u65b9\u5f0f，\u5c06\u9879\u76ee\u5206\u89e3\u4e3a\u4e00\u7cfb\u5217\u8f83\u77ed\u7684\u8fed\u4ee3\u5468\u671f，\u6bcf\u4e2a\u5468\u671f\u90fd\u5bf9\u5e94\u4e00\u4e2a\u5177\u4f53\u7684\u76ee\u6807\u3002 <\/p>\n

    \u5f00\u53d1\u8ba1\u5212\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u9636\u6bb5： <\/p>\n

  • \u9700\u6c42\u5206\u6790\u548c\u8bbe\u8ba1\u9636\u6bb5 <\/li>\n
  • \u73af\u5883\u642d\u5efa\u548c\u5de5\u5177\u51c6\u5907 <\/li>\n
  • \u6838\u5fc3\u529f\u80fd\u5f00\u53d1 <\/li>\n
  • \u96c6\u6210\u548c\u7cfb\u7edf\u6d4b\u8bd5 <\/li>\n
  • \u7528\u6237\u6587\u6863\u7f16\u5199 <\/li>\n
  • \u6700\u7ec8\u90e8\u7f72\u548c\u4ea4\u4ed8 <\/li>\n

    \u6bcf\u4e2a\u9636\u6bb5\u90fd\u9700\u8981\u8bbe\u5b9a\u660e\u786e\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u65f6\u95f4，\u540c\u65f6，\u5f00\u53d1\u8ba1\u5212\u5e94\u5f53\u5177\u5907\u4e00\u5b9a\u7684\u7075\u6d3b\u6027，\u4ee5\u9002\u5e94\u53ef\u80fd\u51fa\u73b0\u7684\u53d8\u66f4\u3002 <\/p>\n

    2.5.2 \u786e\u7acb\u9879\u76ee\u91cc\u7a0b\u7891 <\/h4>\n

    \u9879\u76ee\u91cc\u7a0b\u7891\u662f\u9879\u76ee\u8fdb\u5ea6\u4e2d\u7684\u91cd\u8981\u65f6\u95f4\u70b9，\u5b83\u6807\u5fd7\u7740\u9879\u76ee\u4e2d\u4e00\u4e2a\u5173\u952e\u4efb\u52a1\u6216\u76ee\u6807\u7684\u5b8c\u6210\u3002\u5728\u5236\u5b9a\u91cc\u7a0b\u7891\u65f6，\u9700\u8981\u660e\u786e\u6bcf\u4e2a\u91cc\u7a0b\u7891\u7684\u5b8c\u6210\u6807\u51c6，\u786e\u4fdd\u56e2\u961f\u6210\u5458\u5bf9\u671f\u671b\u6210\u679c\u6709\u5171\u540c\u7684\u7406\u89e3\u3002 <\/p>\n

    \u5e38\u89c1\u7684OPC DA\u9879\u76ee\u91cc\u7a0b\u7891\u5305\u62ec： <\/p>\n

  • \u9700\u6c42\u6587\u6863\u5b8c\u6210\u5e76\u5ba1\u6838\u901a\u8fc7 <\/li>\n
  • \u73af\u5883\u642d\u5efa\u548c\u5f00\u53d1\u5de5\u5177\u5b89\u88c5\u5b8c\u6210 <\/li>\n
  • \u6838\u5fc3\u529f\u80fd\u5f00\u53d1\u5b8c\u6210\u5e76\u901a\u8fc7\u5185\u90e8\u6d4b\u8bd5 <\/li>\n
  • \u7528\u6237\u624b\u518c\u548c\u5b89\u88c5\u6587\u6863\u7f16\u5199\u5b8c\u6210 <\/li>\n
  • \u9879\u76ee\u7ec8\u5ba1\u5e76\u51c6\u5907\u4ea4\u4ed8 <\/li>\n
  • \u5ba2\u6237\u9a8c\u6536\u6d4b\u8bd5\u548c\u6700\u7ec8\u90e8\u7f72 <\/li>\n

    \u4e3a\u4e86\u786e\u4fdd\u91cc\u7a0b\u7891\u7684\u8fbe\u6210，\u9879\u76ee\u7ba1\u7406\u8005\u9700\u8981\u5b9a\u671f\u68c0\u67e5\u9879\u76ee\u8fdb\u5ea6，\u5e76\u4e0e\u56e2\u961f\u6210\u5458\u6c9f\u901a\u3002\u901a\u8fc7\u4f7f\u7528\u9879\u76ee\u7ba1\u7406\u5de5\u5177，\u5982Jira\u6216Trello，\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8ffd\u8e2a\u4efb\u52a1\u7684\u5b8c\u6210\u60c5\u51b5\u548c\u8c03\u6574\u8ba1\u5212\u3002 <\/p>\n

    2.5.3 \u98ce\u9669\u8bc4\u4f30\u548c\u5e94\u5bf9\u7b56\u7565 <\/h4>\n

    \u5728\u4efb\u4f55\u9879\u76ee\u5f00\u53d1\u8fc7\u7a0b\u4e2d，\u90fd\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u98ce\u9669，\u56e0\u6b64，\u98ce\u9669\u8bc4\u4f30\u548c\u5236\u5b9a\u5e94\u5bf9\u7b56\u7565\u662f\u5f00\u53d1\u8ba1\u5212\u4e2d\u4e0d\u53ef\u7f3a\u5c11\u7684\u4e00\u90e8\u5206\u3002\u98ce\u9669\u53ef\u80fd\u5305\u62ec\u6280\u672f\u6311\u6218\u3001\u9700\u6c42\u53d8\u66f4\u3001\u8d44\u6e90\u4e0d\u8db3\u3001\u65f6\u95f4\u5ef6\u8bef\u7b49\u3002 <\/p>\n

    \u8fdb\u884c\u98ce\u9669\u8bc4\u4f30\u65f6，\u9700\u8981\u8bc6\u522b\u51fa\u53ef\u80fd\u7684\u98ce\u9669\u70b9，\u5e76\u5bf9\u6bcf\u4e2a\u98ce\u9669\u70b9\u8fdb\u884c\u8bc4\u4f30，\u5206\u6790\u5176\u53d1\u751f\u7684\u6982\u7387\u548c\u5f71\u54cd\u7a0b\u5ea6\u3002\u57fa\u4e8e\u8bc4\u4f30\u7ed3\u679c，\u53ef\u4ee5\u5236\u5b9a\u76f8\u5e94\u7684\u5e94\u5bf9\u7b56\u7565\u3002\u4f8b\u5982： <\/p>\n

      \n
    • \u5bf9\u4e8e\u6280\u672f\u96be\u70b9，\u53ef\u4ee5\u63d0\u524d\u8fdb\u884c\u6280\u672f\u9884\u7814，\u5e76\u51c6\u5907\u5907\u9009\u6280\u672f\u65b9\u6848\u3002 <\/li>\n
    • \u5bf9\u4e8e\u9700\u6c42\u53d8\u66f4，\u53ef\u4ee5\u5efa\u7acb\u9700\u6c42\u53d8\u66f4\u7ba1\u7406\u6d41\u7a0b，\u786e\u4fdd\u9700\u6c42\u53d8\u66f4\u5f97\u5230\u9002\u5f53\u7684\u8bc4\u4f30\u548c\u6279\u51c6\u3002 <\/li>\n
    • \u5bf9\u4e8e\u8d44\u6e90\u4e0d\u8db3，\u53ef\u4ee5\u8003\u8651\u589e\u52a0\u5f00\u53d1\u56e2\u961f\u6216\u4e34\u65f6\u8058\u7528\u4e13\u5bb6\u987e\u95ee\u3002 <\/li>\n<\/ul>\n

      \u98ce\u9669\u7ba1\u7406\u662f\u4e00\u4e2a\u6301\u7eed\u7684\u8fc7\u7a0b，\u9700\u8981\u9879\u76ee\u7ba1\u7406\u8005\u5728\u9879\u76ee\u6267\u884c\u671f\u95f4\u4e0d\u65ad\u76d1\u63a7\u5e76\u8c03\u6574\u5e94\u5bf9\u7b56\u7565\u3002 <\/p>\n

      3. OPC DA\u5ba2\u6237\u7aef\u7a0b\u5e8f\u5f00\u53d1\u539f\u7406 <\/h2>\n

      3.1 OPC DA\u5ba2\u6237\u7aef\u5f00\u53d1\u57fa\u7840 <\/h3>\n

      3.1.1 \u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u901a\u4fe1\u534f\u8bae <\/h4>\n

      OPC DA\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u662f\u5efa\u7acb\u5728\u7279\u5b9a\u7684\u534f\u8bae\u4e0a\u7684，\u8fd9\u4e9b\u534f\u8bae\u5b9a\u4e49\u4e86\u5982\u4f55\u4ea4\u6362\u6570\u636e\u3001\u5982\u4f55\u5904\u7406\u9519\u8bef\u3001\u5982\u4f55\u4fdd\u8bc1\u4f20\u8f93\u7684\u5b89\u5168\u6027\u7b49\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u9700\u8981\u4e0e\u670d\u52a1\u5668\u7a0b\u5e8f\u9075\u5faa\u76f8\u540c\u7684\u901a\u4fe1\u534f\u8bae，\u4ee5\u786e\u4fdd\u4fe1\u606f\u51c6\u786e\u65e0\u8bef\u5730\u5728\u4e24\u8005\u95f4\u4f20\u8f93\u3002\u5728OPC DA\u4e2d，\u5178\u578b\u7684\u901a\u4fe1\u534f\u8bae\u662f\u57fa\u4e8e\u5fae\u8f6f\u7684COM (Component Object Model) \u67b6\u6784\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u901a\u8fc7\u8c03\u7528\u670d\u52a1\u5668\u63d0\u4f9b\u7684COM\u63a5\u53e3，\u6765\u5b9e\u73b0\u6570\u636e\u7684\u8bfb\u53d6\u548c\u5199\u5165\u3002 <\/p>\n

      \u5ba2\u6237\u7aef\u7684\u5f00\u53d1\u901a\u5e38\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4： <\/p>\n

    • \u521d\u59cb\u5316COM\u5e93 ：\u5728\u4efb\u4f55COM\u8c03\u7528\u4e4b\u524d，\u5fc5\u987b\u5148\u521d\u59cb\u5316COM\u5e93\u3002\u8fd9\u901a\u5e38\u901a\u8fc7\u8c03\u7528 CoInitialize \u51fd\u6570\u5b8c\u6210\u3002 <\/li>\n
    • \u521b\u5efa\u548c\u6fc0\u6d3bOPC\u5bf9\u8c61 ：\u4f7f\u7528COM API\u521b\u5efaOPC\u670d\u52a1\u5668\u5bf9\u8c61，\u5e76\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7a0b\u5e8f\u3002\u8fd9\u4e00\u6b65\u9aa4\u53ef\u80fd\u6d89\u53ca\u5230\u679a\u4e3e\u670d\u52a1\u5668\u652f\u6301\u7684\u63a5\u53e3，\u7136\u540e\u6fc0\u6d3b\u7279\u5b9a\u7684OPC\u63a5\u53e3\u3002 <\/li>\n
    • \u914d\u7f6e\u8fde\u63a5\u5c5e\u6027 ：\u8bbe\u7f6e\u8fde\u63a5\u53c2\u6570，\u4f8b\u5982\u670d\u52a1\u5668\u5730\u5740\u3001\u7aef\u53e3\u3001\u5b89\u5168\u9009\u9879\u7b49\u3002 <\/li>\n
    • \u8fde\u63a5\u548c\u8bfb\u5199\u6570\u636e ：\u901a\u8fc7\u6fc0\u6d3b\u7684\u63a5\u53e3\u8bfb\u5199\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u9879\u3002 <\/li>\n

      \/\/ \u521d\u59cb\u5316COM\u5e93（\u793a\u4f8b\u4ee3\u7801）
      \nCoInitialize(NULL);<\/p>\n

      \/\/ \u521b\u5efaOPC\u670d\u52a1\u5668\u5b9e\u4f8b
      \nCLSID clsid;
      \nCLSIDFromProgID(L"OPC.DA.Server.1", &clsid);
      \nIOPCServer *pServer = NULL;
      \nCoCreateInstance(clsid, NULL, CLSCTX_LOCAL_SERVER, IID_IOPCServer, (void**)&pServer);<\/p>\n

      \/\/ \u8fde\u63a5\u5230OPC\u670d\u52a1\u5668
      \npServer->Connect(L"OPCServerName", IID_IOPCItemMgt, NULL, 0, NULL, &pItemMgt);<\/p>\n

      3.1.2 \u5ba2\u6237\u7aef\u7a0b\u5e8f\u6846\u67b6\u7ed3\u6784\u8bbe\u8ba1 <\/h4>\n

      \u5ba2\u6237\u7aef\u7a0b\u5e8f\u7684\u6846\u67b6\u7ed3\u6784\u8bbe\u8ba1\u662f\u786e\u4fdd\u7a0b\u5e8f\u53ef\u6269\u5c55\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u7684\u5173\u952e\u3002\u901a\u5e38，\u5ba2\u6237\u7aef\u7a0b\u5e8f\u4f1a\u91c7\u7528\u6a21\u5757\u5316\u8bbe\u8ba1，\u5c06\u4e0eOPC\u901a\u4fe1\u76f8\u5173\u7684\u529f\u80fd\u4e0e\u4e1a\u52a1\u903b\u8f91\u5206\u79bb\u3002\u8fd9\u4e0d\u4ec5\u6709\u52a9\u4e8e\u5b9e\u73b0\u529f\u80fd\u590d\u7528，\u4e5f\u65b9\u4fbf\u4e86\u540e\u671f\u7684\u7ef4\u62a4\u548c\u5347\u7ea7\u3002 <\/p>\n

      \u4e00\u4e2a\u5178\u578b\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6846\u67b6\u53ef\u80fd\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206： <\/p>\n

        \n
      • \u901a\u4fe1\u6a21\u5757 ：\u8d1f\u8d23\u5b9e\u73b0\u4e0eOPC\u670d\u52a1\u5668\u7684\u6570\u636e\u4ea4\u6362，\u5c01\u88c5\u4e86\u521b\u5efa\u8fde\u63a5\u3001\u8bfb\u5199\u6570\u636e\u7b49\u64cd\u4f5c\u3002 <\/li>\n
      • \u6570\u636e\u5904\u7406\u6a21\u5757 ：\u5904\u7406\u4eceOPC\u670d\u52a1\u5668\u8bfb\u53d6\u7684\u6570\u636e，\u5e76\u6309\u7167\u4e1a\u52a1\u9700\u6c42\u8fdb\u884c\u52a0\u5de5\u3002 <\/li>\n
      • \u4e8b\u4ef6\u5904\u7406\u6a21\u5757 ：\u54cd\u5e94\u670d\u52a1\u5668\u4e8b\u4ef6，\u5e76\u6267\u884c\u76f8\u5e94\u7684\u4e1a\u52a1\u903b\u8f91\u3002 <\/li>\n
      • \u7528\u6237\u754c\u9762 ：\u5411\u7528\u6237\u63d0\u4f9b\u64cd\u4f5c\u754c\u9762，\u5c55\u793a\u6570\u636e\u548c\u4e8b\u4ef6\u901a\u77e5\u3002 <\/li>\n<\/ul>\n

        \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5316\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6846\u67b6\u8bbe\u8ba1\u793a\u4f8b： <\/p>\n

        \/\/ \u901a\u4fe1\u6a21\u5757（\u793a\u4f8b\u4ee3\u7801）
        \npublic class OPCCommunicationModule
        \n{
        \n private IOPCItemMgt _itemMgt;<\/p>\n

        public void Connect(string serverName, Guid interfaceId)
        \n {
        \n \/\/ \u4f7f\u7528CoCreateInstance\u521b\u5efa\u670d\u52a1\u5668\u5b9e\u4f8b
        \n \/\/ \u4f7f\u7528Connect\u65b9\u6cd5\u8fde\u63a5\u5230\u670d\u52a1\u5668
        \n }<\/p>\n

        public object ReadItem(string itemName)
        \n {
        \n \/\/ \u8bfb\u53d6\u6307\u5b9a\u9879\u7684\u6570\u636e
        \n }<\/p>\n

        \/\/ \u5176\u4ed6\u901a\u4fe1\u64cd\u4f5c…
        \n}<\/p>\n

        \/\/ \u6570\u636e\u5904\u7406\u6a21\u5757（\u793a\u4f8b\u4ee3\u7801）
        \npublic class DataProcessingModule
        \n{
        \n public void ProcessData(object data)
        \n {
        \n \/\/ \u6570\u636e\u5904\u7406\u903b\u8f91…
        \n }
        \n}<\/p>\n

        \/\/ \u7528\u6237\u754c\u9762\u5c42
        \npublic class ClientUI
        \n{
        \n private OPCCommunicationModule _communicationModule = new OPCCommunicationModule();<\/p>\n

        public void ConnectToServer(string serverName)
        \n {
        \n \/\/ \u8fde\u63a5\u5230\u670d\u52a1\u5668\u5e76\u8fdb\u884c\u4e00\u4e9b\u57fa\u672c\u64cd\u4f5c
        \n _communicationModule.Connect(serverName, IID_IOPCItemMgt);
        \n }<\/p>\n

        \/\/ \u7528\u6237\u4ea4\u4e92…
        \n}<\/p>\n

        3.2 OPC DA\u5ba2\u6237\u7aef\u6838\u5fc3\u529f\u80fd\u5b9e\u73b0 <\/h3>\n

        3.2.1 \u6570\u636e\u8bfb\u5199\u4e0e\u8ba2\u9605\u673a\u5236 <\/h4>\n

        OPC DA\u5ba2\u6237\u7aef\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u662f\u5b9e\u73b0\u5bf9OPC\u670d\u52a1\u5668\u6570\u636e\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u6570\u636e\u8bfb\u5199\u901a\u5e38\u901a\u8fc7OPC\u7684Group\u548cItem\u673a\u5236\u5b8c\u6210\u3002\u5ba2\u6237\u7aef\u4f1a\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2aGroup，\u6bcf\u4e2aGroup\u53ef\u4ee5\u5305\u542b\u591a\u4e2aItem，Item\u5bf9\u5e94OPC\u670d\u52a1\u5668\u4e0a\u7684\u4e00\u4e2a\u6570\u636e\u9879\u3002 <\/p>\n

        \u9664\u4e86\u57fa\u672c\u7684\u8bfb\u5199\u64cd\u4f5c，OPC DA\u8fd8\u63d0\u4f9b\u4e86\u8ba2\u9605\u673a\u5236，\u4f7f\u5f97\u5ba2\u6237\u7aef\u80fd\u591f\u8ba2\u9605\u670d\u52a1\u5668\u4e0a\u6570\u636e\u9879\u7684\u53d8\u5316\u3002\u5f53\u8ba2\u9605\u7684\u6570\u636e\u9879\u503c\u53d1\u751f\u53d8\u5316\u65f6，\u670d\u52a1\u5668\u4f1a\u4e3b\u52a8\u901a\u77e5\u5ba2\u6237\u7aef，\u5ba2\u6237\u7aef\u7a0b\u5e8f\u518d\u6839\u636e\u9700\u8981\u5904\u7406\u8fd9\u4e9b\u66f4\u65b0\u7684\u6570\u636e\u3002 <\/p>\n

        \/\/ OPC DA\u6570\u636e\u8bfb\u5199\u793a\u4f8b\u4ee3\u7801
        \n\/\/ \u5047\u8bbe\u5df2\u7ecf\u6709\u4e00\u4e2a\u6fc0\u6d3b\u7684Group\u5bf9\u8c61\u540d\u4e3apGroup
        \nOPCITEMDEF itemDef;
        \nitemDef.bBlob = FALSE;
        \nitemDef.vt = VT_R4; \/\/ \u6570\u636e\u7c7b\u578b\u4e3afloat
        \nitemDef.helixType = OPC_CTYPE_DWORD; \/\/ OPC\u6807\u51c6\u7c7b\u578b<\/p>\n

        \/\/ \u6dfb\u52a0\u4e00\u4e2aItem
        \nHRESULT result = pGroup->AddItem(groupName, &itemDef, 1, &itemResults);<\/p>\n

        \/\/ \u8bfb\u53d6\u6570\u636e
        \nVARIANT data;
        \nresult = pGroup->Read(0, 1, &data);<\/p>\n

        \/\/ \u5199\u5165\u6570\u636e
        \nVARIANT newData;
        \nnewData.vt = VT_R4;
        \nnewData.fltVal = 3.14;
        \nresult = pGroup->Write(0, 1, &newData);<\/p>\n

        3.2.2 \u4e8b\u4ef6\u901a\u77e5\u4e0e\u5904\u7406\u6d41\u7a0b <\/h4>\n

        \u4e8b\u4ef6\u901a\u77e5\u662fOPC DA\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e00\u79cd\u5f02\u6b65\u901a\u4fe1\u673a\u5236\u3002\u670d\u52a1\u5668\u7aef\u5982\u679c\u53d1\u751f\u4e86\u4e00\u4e9b\u4e8b\u4ef6，\u4f8b\u5982\u6570\u636e\u9879\u503c\u8fbe\u5230\u67d0\u4e2a\u9608\u503c\u6216\u53d1\u751f\u9519\u8bef，\u8fd9\u4e9b\u4e8b\u4ef6\u53ef\u4ee5\u88ab\u914d\u7f6e\u4e3a\u901a\u77e5\u5ba2\u6237\u7aef\u3002 <\/p>\n

        \u5ba2\u6237\u7aef\u9700\u8981\u5b9e\u73b0\u4e8b\u4ef6\u5904\u7406\u903b\u8f91，\u8fd9\u4e9b\u903b\u8f91\u901a\u5e38\u5b9a\u4e49\u5728\u5ba2\u6237\u7aef\u7a0b\u5e8f\u4e2d\u67d0\u4e2a\u7279\u5b9a\u7684\u56de\u8c03\u51fd\u6570\u4e2d\u3002\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6，\u670d\u52a1\u5668\u4f1a\u8c03\u7528\u8fd9\u4e2a\u56de\u8c03\u51fd\u6570\u901a\u77e5\u5ba2\u6237\u7aef，\u5ba2\u6237\u7aef\u518d\u6267\u884c\u76f8\u5e94\u64cd\u4f5c\u3002 <\/p>\n

        \/\/ OPC DA\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570\u793a\u4f8b\u4ee3\u7801
        \nvoid OnEventNotification(OPCEvent *pEvent)
        \n{
        \n \/\/ \u5904\u7406\u4e8b\u4ef6\u901a\u77e5\u903b\u8f91…
        \n \/\/ \u4f8b\u5982，\u8bfb\u53d6\u4e8b\u4ef6\u8be6\u60c5\u5e76\u5c55\u793a\u7ed9\u7528\u6237\u6216\u6267\u884c\u5176\u4ed6\u64cd\u4f5c
        \n}<\/p>\n

        \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d，\u4e8b\u4ef6\u5904\u7406\u901a\u5e38\u66f4\u52a0\u590d\u6742，\u6d89\u53ca\u5230\u4e86\u89e3\u4e8b\u4ef6\u7c7b\u578b\u3001\u4e8b\u4ef6\u6e90\u3001\u4e8b\u4ef6\u7684\u8be6\u7ec6\u4fe1\u606f\u7b49\u3002\u4e3a\u4e86\u6709\u6548\u5730\u5904\u7406\u4e8b\u4ef6\u901a\u77e5，\u5f00\u53d1\u8005\u53ef\u80fd\u9700\u8981\u5b9a\u4e49\u4e00\u4e9b\u4e8b\u4ef6\u5904\u7406\u7b56\u7565，\u6bd4\u5982\u4e8b\u4ef6\u961f\u5217\u3001\u4e8b\u4ef6\u8fc7\u6ee4\u3001\u4e8b\u4ef6\u65e5\u5fd7\u8bb0\u5f55\u7b49\u3002 <\/p>\n

        \u672c\u7ae0\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u4e86OPC DA\u5ba2\u6237\u7aef\u7a0b\u5e8f\u5f00\u53d1\u7684\u4e24\u4e2a\u6838\u5fc3\u90e8\u5206：\u57fa\u7840\u6846\u67b6\u8bbe\u8ba1\u548c\u6838\u5fc3\u529f\u80fd\u5b9e\u73b0\u3002\u6211\u4eec\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u548c\u903b\u8f91\u5206\u6790，\u9610\u8ff0\u4e86\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u901a\u4fe1\u534f\u8bae\u7684\u5e94\u7528，\u4ee5\u53ca\u6570\u636e\u8bfb\u5199\u548c\u4e8b\u4ef6\u901a\u77e5\u7b49\u5173\u952e\u6280\u672f\u70b9\u3002\u5728\u4e0b\u4e00\u7ae0，\u6211\u4eec\u5c06\u8fdb\u4e00\u6b65\u6df1\u5165\u5206\u6790OPC DA\u670d\u52a1\u5668\u7aef\u6e90\u7801，\u63ed\u793a\u5176\u5de5\u4f5c\u539f\u7406\u548c\u5b9e\u73b0\u7ec6\u8282\u3002 <\/p>\n

        4. \u6df1\u5165\u89e3\u6790OPC DA\u670d\u52a1\u5668\u7aef\u6e90\u7801 <\/h2>\n

        4.1 \u670d\u52a1\u5668\u6ce8\u518c\u4e0e\u5378\u8f7d\u673a\u5236 <\/h4>\n

        4.1.1 \u6ce8\u518c\u8868\u64cd\u4f5c\u4e0e\u914d\u7f6e\u7ec6\u8282 <\/h5>\n

        OPC DA\u670d\u52a1\u5668\u7684\u6ce8\u518c\u4e0e\u5378\u8f7d\u673a\u5236\u662f\u786e\u4fdd\u670d\u52a1\u5668\u80fd\u591f\u88ab\u7cfb\u7edf\u8bc6\u522b\u548c\u7ba1\u7406\u7684\u5173\u952e\u6b65\u9aa4\u3002\u901a\u5e38\u60c5\u51b5\u4e0b，OPC\u670d\u52a1\u5668\u4f1a\u5c06\u5176COM\u5bf9\u8c61\u4fe1\u606f\u6ce8\u518c\u5230Windows\u6ce8\u518c\u8868\u4e2d，\u4ee5\u4fbf\u64cd\u4f5c\u7cfb\u7edf\u7684\u7ec4\u4ef6\u53ef\u4ee5\u627e\u5230\u5e76\u6fc0\u6d3b\u8be5COM\u5bf9\u8c61\u3002 <\/p>\n

        \u5728\u670d\u52a1\u5668\u6ce8\u518c\u8fc7\u7a0b\u4e2d，\u4f1a\u6d89\u53ca\u5230\u521b\u5efaCOM\u7c7b\u5382\u3001\u6307\u5b9aCLSID（\u7c7b\u6807\u8bc6\u7b26）\u3001\u6307\u5b9a\u670d\u52a1\u5668\u7684ProgID（\u7a0b\u5e8f\u6807\u8bc6\u7b26）\u4ee5\u53ca\u6307\u5b9a\u670d\u52a1\u5668\u652f\u6301\u7684\u63a5\u53e3\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u6ce8\u518c\u8868\u64cd\u4f5c\u7684\u793a\u4f8b\u4ee3\u7801： <\/p>\n

        \/\/ OPC DA\u670d\u52a1\u5668\u6ce8\u518c\u793a\u4f8b\u4ee3\u7801
        \nHKEY hKey;
        \nLSTATUS result = RegOpenKeyEx(HKEY_CLASSES_ROOT, TEXT("CLSID"), 0, KEY_ALL_ACCESS, &hKey);
        \nif (result != ERROR_SUCCESS) {
        \n \/\/ \u5904\u7406\u9519\u8bef
        \n}
        \n\/\/ \u6dfb\u52a0CLSID
        \nresult = RegSetValueEx(hKey, TEXT("{YourGUID}"), 0, REG_SZ, (const BYTE*) "YourServerName", (DWORD) sizeof("YourServerName"));
        \nif (result != ERROR_SUCCESS) {
        \n \/\/ \u5904\u7406\u9519\u8bef
        \n}
        \n\/\/ \u6dfb\u52a0ProgID
        \nresult = RegOpenKeyEx(hKey, TEXT("YourServerName"), 0, KEY_ALL_ACCESS, &hKey);
        \nif (result != ERROR_SUCCESS) {
        \n \/\/ \u5904\u7406\u9519\u8bef
        \n}
        \nresult = RegSetValueEx(hKey, NULL, 0, REG_SZ, (const BYTE*) "YourProgrammaticName", (DWORD) sizeof("YourProgrammaticName"));
        \nif (result != ERROR_SUCCESS) {
        \n \/\/ \u5904\u7406\u9519\u8bef
        \n}
        \n\/\/ \u6dfb\u52a0\u7ec4\u4ef6\u4fe1\u606f
        \n\/\/ …<\/p>\n

        if (hKey) {
        \n RegCloseKey(hKey);
        \n}<\/p>\n

        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d， {YourGUID} \u662f\u4f60\u7684COM\u7c7b\u7684\u5168\u5c40\u552f\u4e00\u6807\u8bc6\u7b26， YourServerName \u662f\u6ce8\u518c\u8868\u4e2d\u7684\u7c7b\u540d， YourProgrammaticName \u662f\u7a0b\u5e8f\u7684\u6807\u8bc6\u7b26\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f，\u6240\u6709\u7684\u6ce8\u518c\u8868\u64cd\u4f5c\u90fd\u5e94\u8be5\u8fdb\u884c\u9519\u8bef\u5904\u7406，\u786e\u4fdd\u6ce8\u518c\u8fc7\u7a0b\u7684\u7a33\u5b9a\u6027\u3002 <\/p>\n

        4.1.2 \u5378\u8f7d\u6d41\u7a0b\u4e0e\u8d44\u6e90\u6e05\u7406\u7b56\u7565 <\/h5>\n

        \u5378\u8f7dOPC DA\u670d\u52a1\u5668\u65f6，\u9700\u8981\u786e\u4fdd\u6240\u6709\u7684\u8d44\u6e90\u90fd\u5f97\u5230\u91ca\u653e，\u5e76\u4e14\u670d\u52a1\u5668\u4e0d\u518d\u5bf9\u7cfb\u7edf\u8d44\u6e90\u8fdb\u884c\u5360\u7528\u3002\u901a\u5e38\u60c5\u51b5\u4e0b，\u8fd9\u6d89\u53ca\u5230\u6e05\u7406COM\u7c7b\u5382\u4fe1\u606f，\u5e76\u4e14\u4ece\u6ce8\u518c\u8868\u4e2d\u79fb\u9664\u76f8\u5e94\u7684\u6761\u76ee\u3002\u8fd9\u91cc\u662f\u4e00\u4e2a\u5378\u8f7d\u64cd\u4f5c\u7684\u7b80\u5316\u793a\u4f8b： <\/p>\n

        \/\/ OPC DA\u670d\u52a1\u5668\u5378\u8f7d\u793a\u4f8b\u4ee3\u7801
        \n\/\/ \u5220\u9664ProgID
        \nRegDeleteValue(HKEY_CLASSES_ROOT, TEXT("YourServerName"));
        \n\/\/ \u5220\u9664CLSID
        \nRegDeleteTree(HKEY_CLASSES_ROOT, TEXT("CLSID\\\\\\\\{YourGUID}"));<\/p>\n

        \u5728\u5378\u8f7d\u8fc7\u7a0b\u4e2d，\u6211\u4eec\u4f7f\u7528 RegDeleteValue \u51fd\u6570\u6765\u5220\u9664ProgID\u7684\u503c，\u5e76\u4f7f\u7528 RegDeleteTree \u51fd\u6570\u6765\u9012\u5f52\u5220\u9664\u4e0eCLSID\u76f8\u5173\u7684\u6240\u6709\u952e\u503c\u3002 {YourGUID} \u548c YourServerName \u9700\u8981\u66ff\u6362\u4e3a\u5b9e\u9645\u7684GUID\u548c\u670d\u52a1\u5668\u540d\u79f0\u3002 <\/p>\n

        4.2 \u670d\u52a1\u5668\u521d\u59cb\u5316\u4e0e\u7ec8\u6b62\u6d41\u7a0b <\/h4>\n

        4.2.1 \u521d\u59cb\u5316\u9636\u6bb5\u7684\u5173\u952e\u6b65\u9aa4 <\/h5>\n

        \u670d\u52a1\u5668\u521d\u59cb\u5316\u9636\u6bb5\u662f\u542f\u52a8\u670d\u52a1\u5668\u65f6\u7684\u91cd\u8981\u73af\u8282，\u5b83\u6d89\u53ca\u5230\u8d44\u6e90\u7684\u5206\u914d\u3001COM\u5bf9\u8c61\u7684\u521b\u5efa\u4ee5\u53ca\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u51c6\u5907\u3002\u4ee5\u4e0b\u662f\u521d\u59cb\u5316\u9636\u6bb5\u7684\u5173\u952e\u6b65\u9aa4： <\/p>\n

      • \u521b\u5efaCOM\u5bf9\u8c61：\u670d\u52a1\u5668\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2aCOM\u5bf9\u8c61，\u8fd9\u4e9b\u5bf9\u8c61\u7528\u4e8e\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\u3002 <\/li>\n
      • \u542f\u52a8\u76d1\u542c：\u670d\u52a1\u5668\u53ef\u80fd\u9700\u8981\u76d1\u542c\u67d0\u4e2a\u7aef\u53e3\u6216\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5\u3002 <\/li>\n
      • \u6ce8\u518c\u63a5\u53e3：\u5c06COM\u5bf9\u8c61\u7684\u63a5\u53e3\u6ce8\u518c\u5230OLE\/COM\u5bf9\u8c61\u7ba1\u7406\u5668\u4e2d，\u4ee5\u4fbf\u5ba2\u6237\u7aef\u53ef\u4ee5\u67e5\u8be2\u548c\u4f7f\u7528\u3002 <\/li>\n

        \/\/ OPC DA\u670d\u52a1\u5668\u521d\u59cb\u5316\u793a\u4f8b\u4ee3\u7801
        \nCoInitialize(NULL);
        \n\/\/ \u521b\u5efa\u670d\u52a1\u5668\u5bf9\u8c61
        \nIOpcDaServer *pServer = NULL;
        \nhr = CoCreateInstance(CLSID_OpcDaServer, NULL, CLSCTX_LOCAL_SERVER, IID_IOpcDaServer, (void**)&pServer);
        \nif (FAILED(hr)) {
        \n \/\/ \u5904\u7406\u521b\u5efaCOM\u5bf9\u8c61\u5931\u8d25\u7684\u60c5\u51b5
        \n}
        \n\/\/ \u542f\u52a8\u76d1\u542c\u548c\u6ce8\u518c\u63a5\u53e3\u7b49…<\/p>\n

        4.2.2 \u6b63\u786e\u7ec8\u6b62\u670d\u52a1\u5668\u7684\u65b9\u6cd5 <\/h5>\n

        \u5728\u7ec8\u6b62\u670d\u52a1\u5668\u7684\u8fc7\u7a0b\u4e2d，\u9700\u8981\u786e\u4fdd\u6240\u6709\u7684\u8d44\u6e90\u88ab\u6b63\u786e\u91ca\u653e，\u6240\u6709\u6253\u5f00\u7684\u8fde\u63a5\u88ab\u5173\u95ed，\u4ee5\u53ca\u786e\u4fdd\u6ca1\u6709\u4efb\u4f55\u6f5c\u5728\u7684\u5185\u5b58\u6cc4\u6f0f\u53d1\u751f\u3002\u7ec8\u6b62\u64cd\u4f5c\u901a\u5e38\u5305\u62ec\u505c\u6b62\u76d1\u542c\u5ba2\u6237\u7aef\u8bf7\u6c42，\u64a4\u9500\u6ce8\u518c\u7684\u63a5\u53e3，\u4ee5\u53ca\u91ca\u653eCOM\u5bf9\u8c61\u3002 <\/p>\n

        \/\/ OPC DA\u670d\u52a1\u5668\u7ec8\u6b62\u793a\u4f8b\u4ee3\u7801
        \n\/\/ \u505c\u6b62\u76d1\u542c\u548c\u5176\u4ed6\u901a\u4fe1\u76f8\u5173\u64cd\u4f5c…
        \nif (pServer) {
        \n pServer->Release();
        \n}
        \npServer = NULL;
        \nCoUninitialize();<\/p>\n

        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4ee3\u7801\u4e2d，\u6211\u4eec\u9996\u5148\u505c\u6b62\u4e86\u670d\u52a1\u5668\u7684\u76d1\u542c，\u968f\u540e\u91ca\u653e\u4e86\u521b\u5efa\u7684COM\u5bf9\u8c61，\u5e76\u8c03\u7528 CoUninitialize \u6765\u91ca\u653eCOM\u76f8\u5173\u7684\u8d44\u6e90\u3002 <\/p>\n

        4.3 OPC\u63a5\u53e3\u7684\u5b9e\u73b0\u7ec6\u8282 <\/h4>\n

        4.3.1 \u63a5\u53e3\u5b9a\u4e49\u4e0e\u65b9\u6cd5\u6620\u5c04 <\/h5>\n

        OPC DA\u6807\u51c6\u5b9a\u4e49\u4e86\u4e00\u7ec4\u63a5\u53e3，\u8fd9\u4e9b\u63a5\u53e3\u5fc5\u987b\u88abOPC\u670d\u52a1\u5668\u5b9e\u73b0，\u4ee5\u4fbf\u5ba2\u6237\u7aef\u53ef\u4ee5\u4f7f\u7528\u5b83\u4eec\u6765\u8bbf\u95ee\u6570\u636e\u9879\u548c\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\u3002\u63a5\u53e3\u7684\u5b9e\u73b0\u901a\u5e38\u5305\u62ec\u5b9a\u4e49\u63a5\u53e3\u7684\u65b9\u6cd5\u4ee5\u53ca\u5c06\u8fd9\u4e9b\u65b9\u6cd5\u6620\u5c04\u5230\u670d\u52a1\u5668\u4e2d\u7684\u76f8\u5e94\u51fd\u6570\u3002 <\/p>\n

        \u4e00\u4e2a\u5178\u578b\u7684\u63a5\u53e3\u5b9a\u4e49\u53ef\u80fd\u4f1a\u50cf\u4e0b\u9762\u8fd9\u6837： <\/p>\n

        \/\/ OPC DA \u63a5\u53e3\u5b9a\u4e49\u793a\u4f8b
        \n\/\/ \u4f8b\u5982IOpcDaServer\u63a5\u53e3\u5b9a\u4e49
        \ninterface IOpcDaServer : IUnknown
        \n{
        \n \/\/ \u65b9\u6cd5\u5b9a\u4e49
        \n HRESULT CreateGroup(…);
        \n HRESULT AddGroup(…);
        \n HRESULT RemoveGroup(…);
        \n \/\/ …
        \n};<\/p>\n

        \u63a5\u53e3\u4e2d\u7684\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u9700\u8981\u5728\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u4e2d\u627e\u5230\u4e00\u4e2a\u5bf9\u5e94\u7684\u51fd\u6570，\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u662f\u672c\u5730\u51fd\u6570\u6216\u8005\u865a\u51fd\u6570\u3002\u5f53\u5ba2\u6237\u7aef\u8c03\u7528\u8fd9\u4e2a\u63a5\u53e3\u65b9\u6cd5\u65f6，\u5b9e\u9645\u4e0a\u8c03\u7528\u7684\u662f\u670d\u52a1\u5668\u5b9e\u73b0\u7684\u5bf9\u5e94\u51fd\u6570\u3002 <\/p>\n

        4.3.2 \u63a5\u53e3\u529f\u80fd\u6d4b\u8bd5\u4e0e\u9a8c\u8bc1 <\/h5>\n

        \u4e3a\u4e86\u786e\u4fdd\u670d\u52a1\u5668\u6b63\u786e\u5b9e\u73b0\u4e86OPC\u63a5\u53e3，\u5e76\u4e14\u8fd9\u4e9b\u63a5\u53e3\u80fd\u591f\u6b63\u5e38\u5de5\u4f5c，\u9700\u8981\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u4e00\u7cfb\u5217\u7684\u6d4b\u8bd5\u3002\u8fd9\u901a\u5e38\u5305\u62ec\u5355\u5143\u6d4b\u8bd5\u3001\u96c6\u6210\u6d4b\u8bd5\u4ee5\u53ca\u538b\u529b\u6d4b\u8bd5\u7b49\u3002 <\/p>\n

        \u5355\u5143\u6d4b\u8bd5\u662f\u9488\u5bf9\u5355\u4e2a\u63a5\u53e3\u65b9\u6cd5\u7684\u6d4b\u8bd5，\u53ef\u4ee5\u4f7f\u7528\u4e13\u95e8\u7684\u6d4b\u8bd5\u6846\u67b6\u8fdb\u884c\u3002\u96c6\u6210\u6d4b\u8bd5\u6d89\u53ca\u591a\u4e2a\u63a5\u53e3\u65b9\u6cd5\u7684\u534f\u540c\u5de5\u4f5c，\u800c\u538b\u529b\u6d4b\u8bd5\u5219\u662f\u5728\u9ad8\u8d1f\u8f7d\u60c5\u51b5\u4e0b\u6d4b\u8bd5\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u7684\u9a8c\u8bc1\u6b65\u9aa4\u5e94\u8be5\u5305\u62ec： <\/p>\n

      • \u63a5\u53e3\u65b9\u6cd5\u8c03\u7528\u7684\u6b63\u786e\u6027\u68c0\u67e5\u3002 <\/li>\n
      • \u591a\u7ebf\u7a0b\u6761\u4ef6\u4e0b\u7684\u63a5\u53e3\u5e76\u53d1\u8bbf\u95ee\u6d4b\u8bd5\u3002 <\/li>\n
      • \u4e0d\u540c\u5ba2\u6237\u7aef\u540c\u65f6\u8bbf\u95ee\u670d\u52a1\u5668\u65f6\u7684\u8d44\u6e90\u7ba1\u7406\u548c\u8bbf\u95ee\u63a7\u5236\u9a8c\u8bc1\u3002 <\/li>\n
      • \u9519\u8bef\u548c\u5f02\u5e38\u6761\u4ef6\u4e0b\u7684\u63a5\u53e3\u884c\u4e3a\u68c0\u67e5\u3002 <\/li>\n

        4.4 \u6570\u636e\u9879\u7ba1\u7406\u64cd\u4f5c <\/h4>\n

        4.4.1 \u6570\u636e\u9879\u7684\u6dfb\u52a0\u4e0e\u5220\u9664 <\/h5>\n

        OPC DA\u670d\u52a1\u5668\u7684\u4e00\u4e2a\u6838\u5fc3\u529f\u80fd\u662f\u7ba1\u7406\u6570\u636e\u9879，\u5305\u62ec\u6dfb\u52a0\u3001\u5220\u9664\u548c\u4fee\u6539\u6570\u636e\u9879\u3002\u6570\u636e\u9879\u901a\u5e38\u5bf9\u5e94\u4e8e\u5de5\u4e1a\u8fc7\u7a0b\u4e2d\u7684\u5b9e\u9645\u6570\u636e\u70b9\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728\u670d\u52a1\u5668\u4e2d\u6dfb\u52a0\u548c\u5220\u9664\u6570\u636e\u9879\u7684\u793a\u4f8b\u4ee3\u7801： <\/p>\n

        \/\/ \u6dfb\u52a0\u6570\u636e\u9879
        \nhr = pServer->AddGroup(groupName, active, refreshRate, &pGroup);
        \n\/\/ \u5220\u9664\u6570\u636e\u9879
        \nhr = pGroup->RemoveItem(pItem);<\/p>\n

        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d， pServer \u662f\u670d\u52a1\u5668\u5bf9\u8c61， pGroup \u662f\u7ec4\u5bf9\u8c61， pItem \u662f\u6570\u636e\u9879\u5bf9\u8c61\u3002\u6dfb\u52a0\u6570\u636e\u9879\u901a\u5e38\u9700\u8981\u6307\u5b9a\u7ec4\u540d\u3001\u6d3b\u52a8\u72b6\u6001\u3001\u5237\u65b0\u7387\u7b49\u53c2\u6570，\u800c\u5220\u9664\u6570\u636e\u9879\u5219\u9700\u8981\u6307\u5b9a\u8981\u5220\u9664\u7684\u6570\u636e\u9879\u3002 <\/p>\n

        4.4.2 \u6570\u636e\u9879\u5c5e\u6027\u7684\u914d\u7f6e\u4e0e\u4fee\u6539 <\/h5>\n

        \u6bcf\u4e2a\u6570\u636e\u9879\u90fd\u6709\u81ea\u5df1\u7684\u5c5e\u6027，\u4f8b\u5982\u503c\u3001\u8d28\u91cf\u3001\u65f6\u95f4\u6233\u7b49\u3002\u8fd9\u4e9b\u5c5e\u6027\u9700\u8981\u5728\u670d\u52a1\u5668\u4e2d\u88ab\u6b63\u786e\u5730\u914d\u7f6e\u548c\u4fee\u6539\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u8bbe\u7f6e\u6570\u636e\u9879\u5c5e\u6027\u7684\u793a\u4f8b： <\/p>\n

        \/\/ \u8bbe\u7f6e\u6570\u636e\u9879\u5c5e\u6027
        \nhr = pItem->SetValue(value);
        \nhr = pItem->SetQuality(quality);
        \nhr = pItem->SetTimestamp(timestamp);<\/p>\n

        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4ee3\u7801\u4e2d，\u6211\u4eec\u4e3a\u6570\u636e\u9879\u8bbe\u7f6e\u4e86\u503c\u3001\u8d28\u91cf\u548c\u65f6\u95f4\u6233\u5c5e\u6027\u3002\u8fd9\u4e9b\u64cd\u4f5c\u5bf9\u4e8e\u5ba2\u6237\u7aef\u6765\u8bf4\u662f\u900f\u660e\u7684，\u5ba2\u6237\u7aef\u53ef\u4ee5\u8bfb\u53d6\u8fd9\u4e9b\u5c5e\u6027\u6765\u83b7\u53d6\u6700\u65b0\u7684\u6570\u636e\u72b6\u6001\u3002 <\/p>\n

        4.5 \u4e8b\u4ef6\u901a\u77e5\u548c\u901a\u4fe1\u903b\u8f91 <\/h4>\n

        4.5.1 \u670d\u52a1\u5668\u4e8b\u4ef6\u89e6\u53d1\u673a\u5236 <\/h5>\n

        OPC DA\u670d\u52a1\u5668\u53ef\u4ee5\u901a\u8fc7\u4e8b\u4ef6\u901a\u77e5\u673a\u5236\u5411\u5ba2\u6237\u7aef\u62a5\u544a\u72b6\u6001\u53d8\u5316\u6216\u5f02\u5e38\u3002\u4e8b\u4ef6\u53ef\u4ee5\u662f\u6570\u636e\u9879\u7684\u503c\u53d8\u5316\u3001\u670d\u52a1\u5668\u8fd0\u884c\u72b6\u6001\u7684\u53d8\u5316\u7b49\u3002\u670d\u52a1\u5668\u4e8b\u4ef6\u89e6\u53d1\u673a\u5236\u901a\u5e38\u6d89\u53ca\u5230\u4ee5\u4e0b\u6b65\u9aa4： <\/p>\n

      • \u4e8b\u4ef6\u8ba2\u9605：\u5ba2\u6237\u7aef\u8ba2\u9605\u611f\u5174\u8da3\u7684\u4e8b\u4ef6\u3002 <\/li>\n
      • \u4e8b\u4ef6\u89e6\u53d1：\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6，\u670d\u52a1\u5668\u786e\u5b9a\u54ea\u4e9b\u5ba2\u6237\u7aef\u8ba2\u9605\u4e86\u8be5\u4e8b\u4ef6\u3002 <\/li>\n
      • \u4e8b\u4ef6\u901a\u77e5：\u670d\u52a1\u5668\u5411\u8ba2\u9605\u4e86\u4e8b\u4ef6\u7684\u5ba2\u6237\u7aef\u53d1\u9001\u901a\u77e5\u3002 <\/li>\n

        \/\/ \u4e8b\u4ef6\u89e6\u53d1\u548c\u901a\u77e5\u793a\u4f8b\u4ee3\u7801
        \n\/\/ \u5047\u8bbe\u6709\u4e00\u4e2a\u4e8b\u4ef6\u53d1\u751f
        \nif (eventShouldBeTriggered) {
        \n \/\/ \u89e6\u53d1\u4e8b\u4ef6
        \n hr = pNotification->FireEvent();
        \n \/\/ \u5411\u8ba2\u9605\u4e86\u8be5\u4e8b\u4ef6\u7684\u5ba2\u6237\u7aef\u53d1\u9001\u901a\u77e5
        \n hr = pServer->NotifyClients(pEvent);
        \n}<\/p>\n

        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d， pNotification \u662f\u4e8b\u4ef6\u5bf9\u8c61， pServer \u662f\u670d\u52a1\u5668\u5bf9\u8c61， pEvent \u662f\u4e8b\u4ef6\u4fe1\u606f\u5bf9\u8c61\u3002 <\/p>\n

        4.5.2 \u5ba2\u6237\u7aef\u4e8b\u4ef6\u54cd\u5e94\u4e0e\u5904\u7406 <\/h5>\n

        \u5ba2\u6237\u7aef\u5728\u63a5\u6536\u5230\u670d\u52a1\u5668\u7684\u4e8b\u4ef6\u901a\u77e5\u540e，\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002\u8fd9\u4e2a\u5904\u7406\u8fc7\u7a0b\u53ef\u80fd\u5305\u62ec\u66f4\u65b0\u7528\u6237\u754c\u9762\u3001\u8bb0\u5f55\u65e5\u5fd7\u3001\u89e6\u53d1\u62a5\u8b66\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5ba2\u6237\u7aef\u4e8b\u4ef6\u54cd\u5e94\u7684\u903b\u8f91： <\/p>\n

        \/\/ \u5ba2\u6237\u7aef\u4e8b\u4ef6\u5904\u7406\u793a\u4f8b
        \nDWORD dwCookie;
        \nhr = pServer->AdviseEvent(pEvent, callback, pUserData, &dwCookie);
        \n\/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u4e8b\u4ef6\u901a\u77e5<\/p>\n

        \u5728\u6b64\u4ee3\u7801\u6bb5\u4e2d， pServer \u662f\u670d\u52a1\u5668\u5bf9\u8c61， pEvent \u662f\u4e8b\u4ef6\u5bf9\u8c61， callback \u662f\u5ba2\u6237\u7aef\u63d0\u4f9b\u7684\u56de\u8c03\u51fd\u6570， pUserData \u662f\u4e0e\u56de\u8c03\u51fd\u6570\u76f8\u5173\u7684\u7528\u6237\u6570\u636e\u3002 dwCookie \u662f\u4e8b\u4ef6\u8ba2\u9605\u7684\u6807\u8bc6\u7b26，\u5f53\u5ba2\u6237\u7aef\u4e0d\u518d\u9700\u8981\u63a5\u6536\u4e8b\u4ef6\u901a\u77e5\u65f6，\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u53d6\u6d88\u8ba2\u9605\u3002 <\/p>\n

        \u8bf7\u6ce8\u610f，\u4ee5\u4e0a\u4ee3\u7801\u7247\u6bb5\u4ec5\u4f9b\u53c2\u8003，\u5b9e\u9645\u5b9e\u73b0\u4e2d\u9700\u8981\u6839\u636e\u5177\u4f53\u7684OPC DA\u670d\u52a1\u5668\u5f00\u53d1\u6846\u67b6\u548cAPI\u8fdb\u884c\u8c03\u6574\u3002\u5f00\u53d1OPC DA\u670d\u52a1\u5668\u7aef\u6e90\u7801\u8981\u6c42\u5f00\u53d1\u8005\u6709\u8f83\u5f3a\u7684\u7f16\u7a0b\u80fd\u529b\u548c\u5bf9OPC\u6280\u672f\u7684\u6df1\u5165\u7406\u89e3\u3002\u4e0b\u4e00\u7ae0\u8282\u5c06\u8be6\u7ec6\u89e3\u6790OPC DA\u5ba2\u6237\u7aef\u7aef\u6e90\u7801，\u8ba9\u8bfb\u8005\u8fdb\u4e00\u6b65\u4e86\u89e3OPC DA\u6280\u672f\u7684\u5ba2\u6237\u7aef\u5f00\u53d1\u7ec6\u8282\u3002 <\/p>\n

        5. OPC DA\u5ba2\u6237\u7aef\u7aef\u6e90\u7801\u6df1\u5ea6\u5206\u6790 <\/h2>\n

        5.1 \u5ba2\u6237\u7aef\u521d\u59cb\u5316\u4e0e\u65ad\u5f00\u6d41\u7a0b <\/h3>\n

        5.1.1 \u8fde\u63a5\u5efa\u7acb\u4e0e\u521d\u59cb\u5316\u64cd\u4f5c <\/h4>\n

        \u5728OPC DA\u5ba2\u6237\u7aef\u7684\u5f00\u53d1\u4e2d，\u8fde\u63a5\u7684\u5efa\u7acb\u662f\u81f3\u5173\u91cd\u8981\u7684\u7b2c\u4e00\u6b65\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u9700\u8981\u6309\u7167OPC DA\u534f\u8bae\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1，\u9996\u5148\u5fc5\u987b\u901a\u8fc7\u76f8\u5e94\u7684\u63a5\u53e3\u5efa\u7acb\u8fde\u63a5，\u5e76\u5728\u6210\u529f\u540e\u8fdb\u884c\u5fc5\u8981\u7684\u521d\u59cb\u5316\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528C++\u8bed\u8a00\u8fdb\u884c\u8fde\u63a5\u5efa\u7acb\u4e0e\u521d\u59cb\u5316\u64cd\u4f5c\u7684\u57fa\u672c\u6b65\u9aa4： <\/p>\n

        #include "OpcComH.h"<\/p>\n

        \/\/ OPC\u5ba2\u6237\u7aef\u7c7b\u5b9a\u4e49
        \nclass CMyOpcClient {
        \npublic:
        \n \/\/ \u8fde\u63a5\u5230OPC\u670d\u52a1\u5668
        \n HRESULT Connect(const CString& serverName) {
        \n HRESULT hr = S_OK;
        \n if (m_pOpcServer) {
        \n \/\/ \u5982\u679c\u5df2\u7ecf\u8fde\u63a5，\u5148\u65ad\u5f00\u8fde\u63a5
        \n hr = Disconnect();
        \n if (FAILED(hr)) {
        \n return hr;
        \n }
        \n }<\/p>\n

        \/\/ \u521b\u5efaCOM\u5bf9\u8c61
        \n hr = CoCreateInstance(CLSID_OpcServer, NULL, CLSCTX_SERVER, IID_IOpcServer, (void**)&m_pOpcServer);
        \n if (FAILED(hr)) {
        \n return hr;
        \n }<\/p>\n

        \/\/ \u521d\u59cb\u5316COM\u5e93
        \n hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
        \n if (FAILED(hr)) {
        \n return hr;
        \n }<\/p>\n

        \/\/ \u6307\u5b9a\u670d\u52a1\u5668\u540d\u79f0
        \n BSTR bstrServerName = ::SysAllocString(serverName.GetBuffer());<\/p>\n

        \/\/ \u8fde\u63a5\u5230\u670d\u52a1\u5668
        \n hr = m_pOpcServer->Connect(bstrServerName, IID_IOPCBrowseServerAddressSpace, NULL, 0);
        \n ::SysFreeString(bstrServerName);<\/p>\n

        \/\/ \u68c0\u67e5\u8fde\u63a5\u72b6\u6001
        \n if (FAILED(hr)) {
        \n CoUninitialize();
        \n return hr;
        \n }<\/p>\n

        \/\/ \u521d\u59cb\u5316\u64cd\u4f5c
        \n \/\/ …<\/p>\n

        return hr;
        \n }<\/p>\n

        \/\/ \u65ad\u5f00\u8fde\u63a5
        \n HRESULT Disconnect() {
        \n HRESULT hr = S_OK;
        \n if (m_pOpcServer) {
        \n \/\/ \u65ad\u5f00\u670d\u52a1\u5668\u8fde\u63a5
        \n hr = m_pOpcServer->Disconnect();
        \n if (FAILED(hr)) {
        \n return hr;
        \n }
        \n \/\/ \u91ca\u653eCOM\u5bf9\u8c61
        \n m_pOpcServer->Release();
        \n m_pOpcServer = NULL;
        \n }<\/p>\n

        \/\/ \u6e05\u7406COM\u5e93
        \n CoUninitialize();<\/p>\n

        return hr;
        \n }<\/p>\n

        private:
        \n IOpcServer *m_pOpcServer;
        \n};<\/p>\n

        \u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d，\u6211\u4eec\u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2a CMyOpcClient \u7c7b，\u5b83\u5305\u542b\u8fde\u63a5\u548c\u65ad\u5f00\u8fde\u63a5\u7684\u6210\u5458\u51fd\u6570\u3002 Connect \u51fd\u6570\u901a\u8fc7 CoCreateInstance \u521b\u5efa\u4e00\u4e2a IOpcServer \u63a5\u53e3\u7684\u5b9e\u4f8b，\u5e76\u8c03\u7528 Connect \u65b9\u6cd5\u6765\u5efa\u7acb\u5230\u670d\u52a1\u5668\u7684\u8fde\u63a5\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f，\u5728\u6210\u529f\u8fde\u63a5\u5230\u670d\u52a1\u5668\u540e，\u6211\u4eec\u8fd8\u9700\u8981\u8fdb\u884c\u4e00\u7cfb\u5217\u521d\u59cb\u5316\u64cd\u4f5c（\u8fd9\u91cc\u7b80\u5316\u4e86，\u5b9e\u9645\u60c5\u51b5\u4e0b\u53ef\u80fd\u662f\u4e0e\u5177\u4f53\u7684\u670d\u52a1\u5668\u7279\u5b9a\u7684\u521d\u59cb\u5316\u8fc7\u7a0b）\u3002\u5982\u679c\u5df2\u7ecf\u5b58\u5728\u8fde\u63a5，\u5219\u901a\u8fc7\u8c03\u7528 Disconnect \u65b9\u6cd5\u65ad\u5f00\u73b0\u6709\u8fde\u63a5，\u5e76\u91ca\u653eCOM\u5bf9\u8c61\u4ee5\u53ca\u8c03\u7528 CoUninitialize \u6e05\u7406COM\u5e93\u3002 <\/p>\n

        5.1.2 \u65ad\u5f00\u8fde\u63a5\u4e0e\u8d44\u6e90\u91ca\u653e <\/h4>\n

        \u5ba2\u6237\u7aef\u5728\u5b8c\u6210\u6570\u636e\u4ea4\u4e92\u6216\u5728\u5e94\u7528\u7a0b\u5e8f\u5173\u95ed\u524d，\u9700\u8981\u5b89\u5168\u5730\u65ad\u5f00\u4e0eOPC\u670d\u52a1\u5668\u7684\u8fde\u63a5\u5e76\u91ca\u653e\u76f8\u5173\u8d44\u6e90\u3002\u65ad\u5f00\u8fde\u63a5\u548c\u8d44\u6e90\u91ca\u653e\u662f\u521d\u59cb\u5316\u7684\u9006\u8fc7\u7a0b，\u4fdd\u8bc1\u4e86\u8d44\u6e90\u7684\u6b63\u786e\u56de\u6536\u548c\u7a0b\u5e8f\u7684\u7a33\u5b9a\u8fd0\u884c\u3002\u4ee5\u4e0b\u662f\u65ad\u5f00\u8fde\u63a5\u548c\u8d44\u6e90\u91ca\u653e\u7684\u4ee3\u7801\u903b\u8f91： <\/p>\n

        HRESULT hr = m_pOpcServer->Disconnect();
        \nif (FAILED(hr)) {
        \n \/\/ \u5904\u7406\u65ad\u5f00\u8fde\u63a5\u5931\u8d25\u7684\u903b\u8f91
        \n return hr;
        \n}<\/p>\n

        m_pOpcServer->Release();
        \nm_pOpcServer = NULL;<\/p>\n

        CoUninitialize();<\/p>\n

        \u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d，\u6211\u4eec\u9996\u5148\u8c03\u7528\u670d\u52a1\u5668\u5bf9\u8c61\u7684 Disconnect \u65b9\u6cd5\u6765\u65ad\u5f00\u8fde\u63a5\u3002\u968f\u540e，\u6211\u4eec\u901a\u8fc7 Release \u65b9\u6cd5\u51cf\u5c11COM\u5bf9\u8c61\u7684\u5f15\u7528\u8ba1\u6570，\u5f53\u8ba1\u6570\u51cf\u5c11\u52300\u65f6，COM\u5bf9\u8c61\u4f1a\u88ab\u81ea\u52a8\u5220\u9664\u3002\u6700\u540e，\u8c03\u7528 CoUninitialize \u6765\u6e05\u7406COM\u5e93，\u91ca\u653e\u7531 CoInitializeEx \u5206\u914d\u7684\u8d44\u6e90\u3002 <\/p>\n

        5.1.3 \u521d\u59cb\u5316\u4e0e\u65ad\u5f00\u6d41\u7a0b\u56fe\u89e3 <\/h4>\n

        \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u521d\u59cb\u5316\u548c\u65ad\u5f00\u8fde\u63a5\u7684\u6d41\u7a0b，\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Mermaid\u6d41\u7a0b\u56fe\u5de5\u5177\u6765\u7ed8\u5236\u4e00\u4e2a\u7b80\u5316\u7684\u6d41\u7a0b\u56fe： <\/p>\n

        graph LR
        \nA[\u5f00\u59cb] –> B{\u68c0\u67e5\u662f\u5426\u5df2\u8fde\u63a5}
        \nB — \u662f –> C[\u65ad\u5f00\u73b0\u6709\u8fde\u63a5]
        \nB — \u5426 –> D[\u521b\u5efaOPC\u670d\u52a1\u5668COM\u5bf9\u8c61]
        \nD –> E[\u521d\u59cb\u5316COM\u5e93]
        \nE –> F[\u8fde\u63a5\u5230OPC\u670d\u52a1\u5668]
        \nF –> G[\u6267\u884c\u5fc5\u8981\u7684\u521d\u59cb\u5316\u64cd\u4f5c]
        \nG –> H[\u521d\u59cb\u5316\u5b8c\u6210]
        \nC –> I[\u65ad\u5f00\u8fde\u63a5]
        \nI –> J[\u91ca\u653eCOM\u5bf9\u8c61]
        \nJ –> K[\u6e05\u7406COM\u5e93]
        \nK –> L[\u65ad\u5f00\u6d41\u7a0b\u5b8c\u6210]
        \nH –> M[\u4f7f\u7528OPC\u670d\u52a1\u5668]
        \nM –> N[\u7ed3\u675f]<\/p>\n

        \u4ee5\u4e0a\u6d41\u7a0b\u56fe\u5c55\u793a\u4e86\u521d\u59cb\u5316\u548c\u65ad\u5f00\u8fde\u63a5\u7684\u4e3b\u8981\u6b65\u9aa4\u3002\u901a\u8fc7\u8fd9\u4e2a\u56fe，\u5f00\u53d1\u8005\u53ef\u4ee5\u6e05\u6670\u5730\u770b\u5230\u4ece\u5f00\u59cb\u5230\u7ed3\u675f\u7684\u6574\u4e2a\u8fc7\u7a0b，\u8fd9\u6709\u52a9\u4e8e\u7406\u89e3\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002 <\/p>\n

        5.1.4 \u521d\u59cb\u5316\u4e0e\u65ad\u5f00\u4ee3\u7801\u903b\u8f91\u5206\u6790 <\/h4>\n

        \u5728\u4ee3\u7801\u903b\u8f91\u5206\u6790\u4e2d，\u4e86\u89e3\u6bcf\u4e2a\u64cd\u4f5c\u80cc\u540e\u7684\u7ec6\u8282\u5bf9\u4e8e\u638c\u63e1\u6574\u4e2a\u6d41\u7a0b\u81f3\u5173\u91cd\u8981\u3002\u5bf9\u4e8e\u521d\u59cb\u5316\u6b65\u9aa4，\u91cd\u70b9\u5728\u4e8e CoCreateInstance \u548c Connect \u65b9\u6cd5\u7684\u8c03\u7528\u3002 CoCreateInstance \u662fCOM\u673a\u5236\u4e2d\u521b\u5efa\u5bf9\u8c61\u7684\u5178\u578b\u65b9\u6cd5，\u5b83\u4f7f\u7528\u7c7b\u6807\u8bc6\u7b26（CLSID）\u6765\u5b9a\u4f4d\u5e76\u521b\u5efa\u5bf9\u8c61\u3002\u800c Connect \u65b9\u6cd5\u7684\u8c03\u7528\u5219\u662f\u4e0e\u7279\u5b9aOPC\u670d\u52a1\u5668\u901a\u4fe1\u7684\u6865\u6881，\u5b83\u53ef\u80fd\u4f1a\u6267\u884c\u4e00\u4e9b\u5982\u7248\u672c\u68c0\u67e5\u548c\u529f\u80fd\u534f\u5546\u7684\u6b65\u9aa4\u3002 <\/p>\n

        \u5bf9\u4e8e\u65ad\u5f00\u8fde\u63a5\u548c\u8d44\u6e90\u91ca\u653e，\u5173\u952e\u5728\u4e8e\u7406\u89e3COM\u7684\u5f15\u7528\u8ba1\u6570\u673a\u5236\u3002\u5f53\u521b\u5efa\u4e00\u4e2aCOM\u5bf9\u8c61\u65f6，\u5b83\u7684\u5f15\u7528\u8ba1\u6570\u88ab\u8bbe\u7f6e\u4e3a1\u3002\u5728\u5176\u4ed6\u5bf9\u8c61\u6216\u65b9\u6cd5\u4e2d\u5f15\u7528\u8fd9\u4e2aCOM\u5bf9\u8c61\u65f6，\u9700\u8981\u4f7f\u7528 AddRef \u65b9\u6cd5\u589e\u52a0\u5f15\u7528\u8ba1\u6570\u3002\u5f53\u5bf9\u8c61\u4e0d\u518d\u9700\u8981\u65f6，\u8c03\u7528 Release \u65b9\u6cd5\u6765\u51cf\u5c11\u5f15\u7528\u8ba1\u6570\u3002\u5f53\u5f15\u7528\u8ba1\u6570\u964d\u81f30\u65f6，\u5bf9\u8c61\u7684\u6790\u6784\u51fd\u6570\u4f1a\u88ab\u81ea\u52a8\u8c03\u7528，\u91ca\u653e\u5bf9\u8c61\u6240\u5360\u7528\u7684\u8d44\u6e90\u3002\u56e0\u6b64， Disconnect \u65b9\u6cd5\u548c CoUninitialize \u7684\u8c03\u7528\u90fd\u662f\u786e\u4fdd\u8d44\u6e90\u88ab\u6b63\u786e\u91ca\u653e\u5e76\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u7684\u5173\u952e\u6b65\u9aa4\u3002 <\/p>\n

        6. \u638c\u63e1OPC DA\u5f00\u53d1\u7684\u5173\u952e\u6280\u672f\u70b9 <\/h2>\n

        \u5728OPC DA\u5f00\u53d1\u7684\u5b9e\u8df5\u4e2d，\u6709\u82e5\u5e72\u5173\u952e\u7684\u6280\u672f\u70b9\u662f\u5f00\u53d1\u8005\u5fc5\u987b\u638c\u63e1\u7684\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u672f\u70b9\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u9ad8\u6548\u5730\u5b9e\u73b0OPC\u901a\u4fe1，\u786e\u4fdd\u6570\u636e\u7684\u5b9e\u65f6\u6027\u3001\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u3002\u672c\u7ae0\u8282\u5c06\u6df1\u5165\u89e3\u6790\u8fd9\u4e9b\u5173\u952e\u6280\u672f\u70b9，\u5305\u62ecCOM\u7f16\u7a0b\u77e5\u8bc6\u5728OPC\u4e2d\u7684\u5e94\u7528\u3001\u591a\u7ebf\u7a0b\u5904\u7406\u80fd\u529b\u5728OPC\u5f00\u53d1\u4e2d\u7684\u5b9e\u8df5\u4ee5\u53ca\u7f51\u7edc\u901a\u4fe1\u5728OPC DA\u4e2d\u7684\u5b9e\u73b0\u3002 <\/p>\n

        6.1 COM\u7f16\u7a0b\u77e5\u8bc6\u5728OPC\u4e2d\u7684\u5e94\u7528 <\/h3>\n

        6.1.1 COM\u57fa\u7840\u4e0eOPC\u7684\u63a5\u53e3\u5b9e\u73b0 <\/h4>\n

        \u7ec4\u4ef6\u5bf9\u8c61\u6a21\u578b（Component Object Model，\u7b80\u79f0COM）\u662f\u5fae\u8f6f\u63a8\u51fa\u7684\u4e00\u79cd\u7528\u4e8e\u8f6f\u4ef6\u7ec4\u4ef6\u4e4b\u95f4\u901a\u4fe1\u7684\u6280\u672f\u89c4\u8303\u3002OPC DA\u4f5c\u4e3a\u4e00\u9879\u57fa\u4e8eWindows\u5e73\u53f0\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u6807\u51c6，\u5176\u5e95\u5c42\u5b9e\u73b0\u4f9d\u8d56\u4e8eCOM\u6280\u672f\u3002\u7406\u89e3COM\u6280\u672f\u5bf9\u4e8e\u638c\u63e1OPC DA\u7684\u5f00\u53d1\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n

        \u5728OPC DA\u4e2d，\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1\u4f9d\u8d56\u4e8e\u4e00\u5957\u9884\u5148\u5b9a\u4e49\u7684\u63a5\u53e3\u3002\u8fd9\u4e9b\u63a5\u53e3\u9075\u5faaCOM\u89c4\u8303，\u4f7f\u5f97OPC DA\u80fd\u591f\u5728\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u63d0\u4f9b\u7edf\u4e00\u7684\u901a\u4fe1\u65b9\u5f0f\u3002\u4f8b\u5982，IOPCItemMgt\u548cIOPCServer\u7b49\u63a5\u53e3\u7528\u4e8e\u6570\u636e\u9879\u7684\u7ba1\u7406\u4e0e\u670d\u52a1\u5668\u7684\u7ba1\u7406\u3002 <\/p>\n

        \u5728\u5b9e\u73b0\u8fd9\u4e9b\u63a5\u53e3\u65f6，\u5f00\u53d1\u8005\u9700\u8981\u521b\u5efa\u5177\u4f53\u7684\u7c7b，\u5b9e\u73b0\u63a5\u53e3\u4e2d\u5b9a\u4e49\u7684\u65b9\u6cd5\u3002\u8fd9\u91cc\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50，\u5c55\u793a\u4e86\u5982\u4f55\u5b9e\u73b0IOPCItemMgt\u63a5\u53e3\u4e2d\u7684AddItems\u65b9\u6cd5： <\/p>\n

        HRESULT CItemMgt::AddItems(ULONG nItems,OPCITEMDEF *pItemArray,
        \n OPCITEMRESULT **ppAddResults)
        \n{
        \n \/\/ \u5b9e\u73b0\u6dfb\u52a0\u6570\u636e\u9879\u7684\u903b\u8f91
        \n \/\/ …
        \n}<\/p>\n

        COM\u63a5\u53e3\u7684\u5b9e\u73b0\u8981\u6c42\u5f00\u53d1\u4eba\u5458\u7406\u89e3\u5f15\u7528\u8ba1\u6570（AddRef\/Release）\u3001\u7ebf\u7a0b\u6a21\u578b\u3001Vtable\u7ed3\u6784\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7QueryInterface\u67e5\u8be2\u63a5\u53e3\u3002 <\/p>\n

        6.1.2 COM\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406 <\/h4>\n

        COM\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u7531\u5f15\u7528\u8ba1\u6570\u673a\u5236\u7ba1\u7406\u3002\u5f53\u5bf9\u8c61\u7684\u5f15\u7528\u8ba1\u6570\u964d\u81f3\u96f6\u65f6，\u5bf9\u8c61\u5e94\u5f53\u91ca\u653e\u5176\u5360\u7528\u7684\u8d44\u6e90\u3002\u5728OPC DA\u5f00\u53d1\u4e2d，\u6b63\u786e\u5730\u7ba1\u7406COM\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u662f\u4fdd\u8bc1\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u7684\u5173\u952e\u3002 <\/p>\n

        \u901a\u5e38，\u6211\u4eec\u4f7f\u7528 AddRef \u548c Release \u65b9\u6cd5\u6765\u589e\u52a0\u548c\u51cf\u5c11\u5bf9\u8c61\u7684\u5f15\u7528\u8ba1\u6570\u3002\u6bcf\u4e2aCOM\u5bf9\u8c61\u5728\u5176\u6784\u9020\u51fd\u6570\u4e2d\u901a\u5e38\u4f1a\u521d\u59cb\u5316\u5f15\u7528\u8ba1\u6570\u4e3a1，\u5728 Release \u65b9\u6cd5\u4e2d\u5c06\u5f15\u7528\u8ba1\u6570\u51cf1，\u5f53\u5f15\u7528\u8ba1\u6570\u51cf\u81f30\u65f6，\u5bf9\u8c61\u4f1a\u9500\u6bc1\u81ea\u8eab\u3002 <\/p>\n

        \/\/ \u5bf9\u8c61\u7684AddRef\u65b9\u6cd5\u793a\u4f8b
        \nULONG CMyCOMObject::AddRef()
        \n{
        \n return InterlockedIncrement(&m_lRef);
        \n}<\/p>\n

        \/\/ \u5bf9\u8c61\u7684Release\u65b9\u6cd5\u793a\u4f8b
        \nULONG CMyCOMObject::Release()
        \n{
        \n ULONG ulRef = InterlockedDecrement(&m_lRef);
        \n if (ulRef == 0)
        \n {
        \n delete this;
        \n }
        \n return ulRef;
        \n}<\/p>\n

        \u5f00\u53d1\u8005\u9700\u8981\u6ce8\u610f\u7684\u662f，COM\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u8c03\u7528\u90fd\u662f\u4ee5\u5f15\u7528\u65b9\u5f0f\u4f20\u9012\u7684，\u56e0\u6b64\u5728\u4efb\u4f55\u65b9\u6cd5\u7684\u8c03\u7528\u4e2d\u90fd\u53ef\u80fd\u6d89\u53ca\u5230\u5f15\u7528\u8ba1\u6570\u7684\u53d8\u5316，\u9700\u8981\u7279\u522b\u7559\u610f\u3002 <\/p>\n

        6.2 \u591a\u7ebf\u7a0b\u5904\u7406\u80fd\u529b\u5728OPC\u5f00\u53d1\u4e2d\u7684\u5b9e\u8df5 <\/h3>\n

        6.2.1 \u7ebf\u7a0b\u5b89\u5168\u8bbe\u8ba1\u4e0e\u5b9e\u73b0 <\/h4>\n

        \u7531\u4e8eOPC\u670d\u52a1\u5668\u9700\u8981\u54cd\u5e94\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u5e76\u53d1\u8bf7\u6c42，\u56e0\u6b64OPC DA\u7684\u5f00\u53d1\u4e2d\u4e0d\u53ef\u907f\u514d\u5730\u8981\u5904\u7406\u591a\u7ebf\u7a0b\u95ee\u9898\u3002\u7ebf\u7a0b\u5b89\u5168（Thread-Safety）\u8bbe\u8ba1\u662f\u786e\u4fdd\u591a\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u540c\u65f6\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u800c\u4e0d\u5f15\u8d77\u51b2\u7a81\u7684\u91cd\u8981\u624b\u6bb5\u3002 <\/p>\n

        \u5728OPC DA\u5f00\u53d1\u4e2d，\u7ebf\u7a0b\u5b89\u5168\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u6765\u5b9e\u73b0： <\/p>\n

          \n
        • \u4e92\u65a5\u9501（Mutex） ：\u5728\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u524d，\u4f7f\u7528\u4e92\u65a5\u9501\u5bf9\u8d44\u6e90\u52a0\u9501，\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u3002\u7ebf\u7a0b\u83b7\u53d6\u9501\u4e4b\u540e，\u5176\u4ed6\u7ebf\u7a0b\u5c06\u4f1a\u963b\u585e，\u76f4\u5230\u9501\u88ab\u91ca\u653e\u3002 <\/li>\n
        • \u4e34\u754c\u533a（Critical Section） ：\u7c7b\u4f3c\u4e8e\u4e92\u65a5\u9501，\u4f46\u4e34\u754c\u533a\u7528\u4e8e\u5355\u4e2a\u8fdb\u7a0b\u7684\u591a\u4e2a\u7ebf\u7a0b\u95f4\u540c\u6b65，\u5b9e\u73b0\u6bd4\u4e92\u65a5\u9501\u66f4\u5feb\u3002 <\/li>\n
        • \u539f\u5b50\u64cd\u4f5c（Atomic Operations） ：\u4f7f\u7528\u539f\u5b50\u64cd\u4f5c\u6765\u4fdd\u8bc1\u53d8\u91cf\u66f4\u65b0\u7684\u539f\u5b50\u6027，\u907f\u514d\u7ade\u6001\u6761\u4ef6\u3002 <\/li>\n<\/ul>\n

          \u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u4e34\u754c\u533a\u8fdb\u884c\u7ebf\u7a0b\u5b89\u5168\u64cd\u4f5c\u7684\u4ee3\u7801\u793a\u4f8b： <\/p>\n

          CRITICAL_SECTION g_csMyResourceLock;<\/p>\n

          void EnterLock()
          \n{
          \n EnterCriticalSection(&g_csMyResourceLock);
          \n}<\/p>\n

          void LeaveLock()
          \n{
          \n LeaveCriticalSection(&g_csMyResourceLock);
          \n}<\/p>\n

          \u5728\u7f16\u5199\u7ebf\u7a0b\u5b89\u5168\u7684\u4ee3\u7801\u65f6，\u9700\u8981\u6ce8\u610f\u7684\u662f，\u4efb\u4f55\u53ef\u80fd\u5bfc\u81f4\u7ebf\u7a0b\u963b\u585e\u7684\u64cd\u4f5c\u90fd\u5e94\u5f53\u5c0f\u5fc3\u4f7f\u7528，\u56e0\u4e3a\u8fd9\u4f1a\u5bfc\u81f4\u6b7b\u9501\u6216\u5176\u4ed6\u5e76\u53d1\u95ee\u9898\u3002 <\/p>\n

          6.2.2 \u9ad8\u6548\u591a\u7ebf\u7a0b\u901a\u4fe1\u7b56\u7565 <\/h4>\n

          \u4e3a\u4e86\u5b9e\u73b0OPC DA\u670d\u52a1\u5668\u7684\u9ad8\u5e76\u53d1\u6027，\u5f00\u53d1\u8005\u9700\u8981\u4f7f\u7528\u6709\u6548\u7684\u591a\u7ebf\u7a0b\u901a\u4fe1\u7b56\u7565\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762： <\/p>\n

            \n
          • \u7ebf\u7a0b\u6c60 ：\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u51cf\u5c11\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u7684\u5f00\u9500，\u5e76\u4e14\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u7ebf\u7a0b\u7684\u5de5\u4f5c\u8d1f\u8f7d\u3002\u5728\u9ad8\u8d1f\u8f7d\u65f6，\u53ef\u4ee5\u589e\u52a0\u7ebf\u7a0b\u6570\u91cf；\u5728\u4f4e\u8d1f\u8f7d\u65f6，\u51cf\u5c11\u7ebf\u7a0b\u6570\u91cf\u3002 <\/li>\n
          • \u5de5\u4f5c\u7a83\u53d6\u7b97\u6cd5 ：\u5de5\u4f5c\u7a83\u53d6\u7b97\u6cd5\u80fd\u591f\u4fdd\u8bc1\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u8d1f\u8f7d\u5747\u8861\u3002\u5de5\u4f5c\u91cf\u8f83\u5c11\u7684\u7ebf\u7a0b\u53ef\u4ee5\u201c\u7a83\u53d6\u201d\u5176\u4ed6\u7ebf\u7a0b\u7684\u4efb\u52a1\u3002 <\/li>\n
          • \u4efb\u52a1\u961f\u5217 ：\u6240\u6709\u9700\u8981\u5904\u7406\u7684\u8bf7\u6c42\u90fd\u88ab\u653e\u5165\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\u4e2d，\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6309\u987a\u5e8f\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\u6267\u884c\u3002 <\/li>\n<\/ul>\n

            \u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7ebf\u7a0b\u6c60\u5b9e\u73b0\u6846\u67b6\u793a\u4f8b： <\/p>\n

            class ThreadPool {
            \npublic:
            \n ThreadPool(size_t numThreads) : stop(false) {
            \n for(size_t i = 0; i < numThreads; ++i) {
            \n workers.emplace_back(
            \n [this] {
            \n while(true) {
            \n std::function<void()> task;
            \n {
            \n std::unique_lock<std::mutex> lock(this->queue_mutex);
            \n this->condition.wait(lock,
            \n [this]{ return this->stop || !this->tasks.empty(); });
            \n if(this->stop && this->tasks.empty())
            \n return;
            \n task = this->tasks.front();
            \n this->tasks.pop();
            \n }
            \n task();
            \n }
            \n }
            \n );
            \n }
            \n }
            \n template<class F, class… Args>
            \n auto enqueue(F&& f, Args&&… args)
            \n -> std::future<typename std::result_of<F(Args…)>::type> {
            \n using return_type = typename std::result_of<F(Args…)>::type;<\/p>\n

            auto task = std::make_shared< std::packaged_task<return_type()> >(
            \n std::bind(std::forward<F>(f), std::forward<Args>(args)…)
            \n );
            \n std::future<return_type> res = task->get_future();
            \n {
            \n std::unique_lock<std::mutex> lock(queue_mutex);<\/p>\n

            \/\/ don't allow enqueueing after stopping the pool
            \n if(stop)
            \n throw std::runtime_error("enqueue on stopped ThreadPool");<\/p>\n

            tasks.emplace([task](){ (*task)(); });
            \n }
            \n condition.notify_one();
            \n return res;
            \n }<\/p>\n

            ~ThreadPool() {
            \n {
            \n std::unique_lock<std::mutex> lock(queue_mutex);
            \n stop = true;
            \n }
            \n condition.notify_all();
            \n for(std::thread &worker: workers)
            \n worker.join();
            \n }<\/p>\n

            private:
            \n std::vector<std::thread> workers;
            \n std::queue<std::function<void()>> tasks;
            \n std::mutex queue_mutex;
            \n std::condition_variable condition;
            \n bool stop;
            \n};<\/p>\n

            \u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d，\u5408\u7406\u7684\u8d44\u6e90\u7ba1\u7406\u548c\u901a\u4fe1\u7b56\u7565\u662f\u9ad8\u6548\u5b9e\u73b0OPC DA\u670d\u52a1\u5668\u7684\u5173\u952e\u3002\u8fd9\u9700\u8981\u5f00\u53d1\u8005\u6709\u6df1\u5165\u7406\u89e3\u7ebf\u7a0b\u7ba1\u7406\u3001\u540c\u6b65\u673a\u5236\u53ca\u5e76\u53d1\u7f16\u7a0b\u539f\u7406\u3002 <\/p>\n

            6.3 \u7f51\u7edc\u901a\u4fe1\u5728OPC DA\u4e2d\u7684\u5b9e\u73b0 <\/h3>\n

            6.3.1 TCP\/IP\u534f\u8bae\u5728OPC\u4e2d\u7684\u5e94\u7528 <\/h4>\n

            TCP\/IP\u534f\u8bae\u662f\u4e92\u8054\u7f51\u901a\u4fe1\u7684\u57fa\u7840\u3002\u5728OPC DA\u7684\u5b9e\u73b0\u4e2d，TCP\/IP\u534f\u8bae\u626e\u6f14\u4e86\u91cd\u8981\u89d2\u8272，\u63d0\u4f9b\u4e86\u7a33\u5b9a\u7684\u7f51\u7edc\u901a\u4fe1\u4fdd\u969c\u3002OPC DA\u57fa\u4e8eTCP\/IP\u534f\u8bae\u6784\u5efa\u4e86\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u901a\u9053\u3002 <\/p>\n

            \u7f51\u7edc\u901a\u4fe1\u7684\u5b9e\u73b0\u5305\u62ec\u4e86\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6b65\u9aa4： <\/p>\n

          • \u7f51\u7edc\u8fde\u63a5 ：\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u9700\u8981\u901a\u8fc7\u4e09\u6b21\u63e1\u624b\u5efa\u7acbTCP\u8fde\u63a5\u3002 <\/li>\n
          • \u6570\u636e\u4f20\u8f93 ：\u6570\u636e\u5305\u5728\u7f51\u7edc\u4e0a\u8fdb\u884c\u4f20\u8f93，\u9700\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u3002 <\/li>\n
          • \u8fde\u63a5\u7ba1\u7406 ：\u8fde\u63a5\u53ef\u80fd\u4f1a\u56e0\u4e3a\u7f51\u7edc\u4e0d\u7a33\u5b9a\u6216\u5176\u4ed6\u539f\u56e0\u65ad\u5f00，\u9700\u8981\u6709\u91cd\u8fde\u673a\u5236\u3002 <\/li>\n
          • \u52a0\u5bc6\u4e0e\u8ba4\u8bc1 ：\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027，\u53ef\u80fd\u4f1a\u4f7f\u7528SSL\/TLS\u7b49\u52a0\u5bc6\u534f\u8bae\u3002 <\/li>\n

            6.3.2 \u7f51\u7edc\u5ef6\u8fdf\u4f18\u5316\u4e0e\u6570\u636e\u4f20\u8f93\u5b89\u5168 <\/h4>\n

            \u7f51\u7edc\u5ef6\u8fdf\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u6765\u8bf4\u662f\u4e00\u4e2a\u5173\u952e\u95ee\u9898\u3002\u5f00\u53d1\u8005\u9700\u8981\u901a\u8fc7\u4f18\u5316\u7f51\u7edc\u534f\u8bae\u548c\u4f7f\u7528\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u673a\u5236\u6765\u51cf\u5c11\u5ef6\u8fdf\u3002 <\/p>\n

            \u5728\u7f51\u7edc\u5ef6\u8fdf\u4f18\u5316\u65b9\u9762，\u5f00\u53d1\u8005\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u7b56\u7565： <\/p>\n

              \n
            • \u6570\u636e\u538b\u7f29 ：\u901a\u8fc7\u538b\u7f29\u6570\u636e\u51cf\u5c11\u4f20\u8f93\u7684\u6570\u636e\u91cf，\u4ece\u800c\u964d\u4f4e\u7f51\u7edc\u5ef6\u8fdf\u3002 <\/li>\n
            • \u6279\u91cf\u4f20\u8f93 ：\u5408\u7406\u89c4\u5212\u6570\u636e\u7684\u6279\u91cf\u4f20\u8f93，\u907f\u514d\u9891\u7e41\u7684\u5c0f\u5305\u4f20\u8f93\u9020\u6210\u7684\u7f51\u7edc\u62e5\u585e\u3002 <\/li>\n
            • \u8fde\u63a5\u6c60 ：\u4f7f\u7528\u8fde\u63a5\u6c60\u53ef\u4ee5\u5feb\u901f\u590d\u7528\u5df2\u6709\u7684\u8fde\u63a5，\u51cf\u5c11\u5efa\u7acb\u8fde\u63a5\u7684\u65f6\u95f4\u3002 <\/li>\n<\/ul>\n

              \u6b64\u5916，\u6570\u636e\u4f20\u8f93\u5b89\u5168\u662f\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5f00\u53d1\u8005\u9700\u8981\u91c7\u53d6\u63aa\u65bd\u4fdd\u62a4\u6570\u636e\u7684\u5b89\u5168\u6027： <\/p>\n

                \n
              • \u52a0\u5bc6\u901a\u4fe1 ：\u4f7f\u7528\u52a0\u5bc6\u534f\u8bae（\u5982TLS）\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6，\u9632\u6b62\u6570\u636e\u88ab\u622a\u83b7\u6216\u7be1\u6539\u3002 <\/li>\n
              • \u8ba4\u8bc1\u673a\u5236 ：\u901a\u8fc7\u8eab\u4efd\u8ba4\u8bc1\u673a\u5236\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7684\u5ba2\u6237\u7aef\u53ef\u4ee5\u8fde\u63a5\u5230\u670d\u52a1\u5668\u3002 <\/li>\n
              • \u8bbf\u95ee\u63a7\u5236 ：\u670d\u52a1\u5668\u7aef\u5b9e\u65bd\u8bbf\u95ee\u63a7\u5236\u7b56\u7565，\u9650\u5b9a\u5ba2\u6237\u7aef\u5bf9\u670d\u52a1\u5668\u4e0a\u4e0d\u540c\u6570\u636e\u9879\u7684\u8bfb\u5199\u6743\u9650\u3002 <\/li>\n<\/ul>\n

                \u901a\u8fc7\u4e0a\u8ff0\u7684\u5173\u952e\u6280\u672f\u70b9，\u5f00\u53d1\u8005\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u3001\u7a33\u5b9a\u3001\u5b89\u5168\u7684OPC DA\u901a\u4fe1\u3002\u8fd9\u4e0d\u4ec5\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b9e\u65f6\u4f20\u8f93，\u8fd8\u80fd\u591f\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u63d0\u4f9b\u53ef\u9760\u7684\u670d\u52a1\u3002 <\/p>\n

                graph LR
                \nA[\u5f00\u59cb] –> B[COM\u57fa\u7840]
                \nB –> C[OPC\u63a5\u53e3\u5b9e\u73b0]
                \nC –> D[COM\u5bf9\u8c61\u751f\u547d\u5468\u671f]
                \nD –> E[\u7ebf\u7a0b\u5b89\u5168\u8bbe\u8ba1]
                \nE –> F[\u591a\u7ebf\u7a0b\u5b9e\u8df5]
                \nF –> G[\u7f51\u7edc\u901a\u4fe1\u57fa\u7840]
                \nG –> H[\u7f51\u7edc\u5ef6\u8fdf\u4f18\u5316]
                \nH –> I[\u6570\u636e\u4f20\u8f93\u5b89\u5168]
                \nI –> J[\u7ed3\u675f]<\/p>\n

                \u5728\u672c\u7ae0\u4e2d，\u6211\u4eec\u56f4\u7ed5COM\u7f16\u7a0b\u3001\u591a\u7ebf\u7a0b\u5904\u7406\u4ee5\u53ca\u7f51\u7edc\u901a\u4fe1\u7b49\u5173\u952eOPC DA\u5f00\u53d1\u6280\u672f\u70b9\u5c55\u5f00\u4e86\u8be6\u5c3d\u7684\u8ba8\u8bba\u3002\u901a\u8fc7\u6df1\u5165\u7406\u89e3\u5e76\u5b9e\u8df5\u8fd9\u4e9b\u5173\u952e\u6280\u672f，\u5f00\u53d1\u8005\u80fd\u591f\u6784\u5efa\u51fa\u6027\u80fd\u4f18\u5f02\u4e14\u5b89\u5168\u53ef\u9760\u7684OPC DA\u5e94\u7528\u3002\u8fd9\u4e9b\u6280\u80fd\u4e0d\u4ec5\u9002\u7528\u4e8eOPC DA，\u4e5f\u5bf9\u5176\u4ed6\u57fa\u4e8eCOM\u548c\u591a\u7ebf\u7a0b\u7684\u7cfb\u7edf\u5f00\u53d1\u5177\u6709\u91cd\u8981\u7684\u501f\u9274\u610f\u4e49\u3002\u5728\u4e0b\u4e00\u7ae0\u8282\u4e2d，\u6211\u4eec\u5c06\u8ba8\u8bbaOPC DA\u5f00\u53d1\u7684\u9ad8\u7ea7\u8bdd\u9898，\u5e76\u5c55\u671b\u5176\u672a\u6765\u7684\u53d1\u5c55\u8d8b\u52bf\u3002 <\/p>\n

                7. OPC DA\u5f00\u53d1\u9ad8\u7ea7\u8bdd\u9898\u4e0e\u5c55\u671b <\/h2>\n

                7.1 OPC DA\u4e0eOPC UA\u7684\u6bd4\u8f83\u4e0e\u878d\u5408 <\/h3>\n

                7.1.1 \u4e24\u79cd\u6280\u672f\u7684\u533a\u522b\u4e0e\u8054\u7cfb <\/h4>\n

                \u968f\u7740\u5de5\u4e1a\u81ea\u52a8\u5316\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65，OPC DA（Data Access）\u548cOPC UA（Unified Architecture）\u4f5c\u4e3a\u5de5\u4e1a\u901a\u8baf\u534f\u8bae\u7684\u4e24\u4e2a\u91cd\u8981\u6807\u51c6，\u5404\u81ea\u5728\u4e0d\u540c\u7684\u9886\u57df\u548c\u5e94\u7528\u4e2d\u53d1\u6325\u7740\u4f5c\u7528\u3002OPC DA\u4e3b\u8981\u7528\u4e8eWindows\u5e73\u53f0，\u4fa7\u91cd\u4e8e\u6570\u636e\u8bbf\u95ee\u548c\u8bfb\u5199，\u800cOPC UA\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u901a\u4fe1\u6846\u67b6，\u4e0d\u4ec5\u4ec5\u652f\u6301\u6570\u636e\u8bbf\u95ee，\u8fd8\u5305\u62ec\u5b89\u5168\u3001\u5386\u53f2\u6570\u636e\u3001\u7a0b\u5e8f\u8c03\u7528\u7b49\u591a\u79cd\u670d\u52a1\u3002 <\/p>\n

                \u4ece\u6280\u672f\u5c42\u9762\u6765\u770b，OPC DA\u57fa\u4e8e\u5fae\u8f6f\u7684COM\/DCOM\u6280\u672f\u6784\u5efa，\u4e3b\u8981\u7528\u4e8e\u672c\u5730\u7f51\u7edc，\u4f46\u5728\u5b89\u5168\u6027\u3001\u8de8\u5e73\u53f0\u652f\u6301\u548c\u7f51\u7edc\u6548\u7387\u65b9\u9762\u5b58\u5728\u4e00\u5b9a\u7684\u5c40\u9650\u6027\u3002\u76f8\u5bf9\u800c\u8a00，OPC UA\u57fa\u4e8e\u66f4\u4e3a\u73b0\u4ee3\u7684TCP\/IP\u534f\u8bae，\u63d0\u4f9b\u4e86\u66f4\u4e3a\u4e30\u5bcc\u7684\u901a\u4fe1\u673a\u5236\u548c\u5b89\u5168\u7b56\u7565，\u652f\u6301\u4e86\u5305\u62ec\u6570\u636e\u4f20\u8f93\u3001\u4e8b\u4ef6\u5904\u7406\u3001\u52a0\u5bc6\u901a\u4fe1\u5728\u5185\u7684\u591a\u79cd\u529f\u80fd，\u66f4\u9002\u5408\u5728\u590d\u6742\u7684\u5de5\u4e1a\u4e92\u8054\u7f51\u73af\u5883\u4e2d\u5e94\u7528\u3002 <\/p>\n

                \u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u4e24\u79cd\u6280\u672f\u5404\u6709\u4f18\u52bf，\u4f46\u4e3a\u4e86\u6ee1\u8db3\u672a\u6765\u5de5\u4e1a\u901a\u8baf\u7684\u9700\u6c42，\u5b9e\u73b0OPC DA\u5411OPC UA\u7684\u5e73\u6ed1\u8fc7\u6e21\u548c\u878d\u5408\u5df2\u6210\u4e3a\u884c\u4e1a\u7684\u4e00\u5927\u8d8b\u52bf\u3002\u8fd9\u79cd\u878d\u5408\u4e0d\u4ec5\u610f\u5473\u7740\u4ece\u4f20\u7edf\u5de5\u4e1a\u901a\u8baf\u534f\u8bae\u5411\u65b0\u4e00\u4ee3\u5de5\u4e1a\u4e92\u8054\u7f51\u534f\u8bae\u7684\u5347\u7ea7，\u8fd8\u5305\u62ec\u4e86\u5bf9\u73b0\u6709\u5de5\u4e1a\u7cfb\u7edf\u7684\u4fdd\u62a4\u4ee5\u53ca\u5bf9\u65b0\u6280\u672f\u6295\u8d44\u7684\u4fdd\u62a4\u3002 <\/p>\n

                7.1.2 \u6280\u672f\u878d\u5408\u7684\u65b9\u5411\u4e0e\u6311\u6218 <\/h4>\n

                \u878d\u5408OPC DA\u548cOPC UA\u7684\u8fc7\u7a0b\u9762\u4e34\u82e5\u5e72\u6311\u6218\u3002\u9996\u5148\u662f\u6280\u672f\u8f6c\u6362\u95ee\u9898，\u7531\u4e8e\u4e24\u79cd\u6280\u672f\u5728\u67b6\u6784\u8bbe\u8ba1\u548c\u901a\u4fe1\u673a\u5236\u4e0a\u7684\u5dee\u5f02，\u76f4\u63a5\u66ff\u6362\u5e76\u4e0d\u73b0\u5b9e，\u9700\u8981\u901a\u8fc7\u4e2d\u95f4\u4ef6\u7b49\u624b\u6bb5\u6765\u5b9e\u73b0\u517c\u5bb9\u3002\u5176\u6b21\u662f\u6570\u636e\u6a21\u578b\u7684\u4e00\u81f4\u6027\u95ee\u9898，OPC UA\u5177\u6709\u66f4\u4e3a\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u5b9a\u4e49\u80fd\u529b，\u5982\u4f55\u5b9e\u73b0\u4e0eOPC DA\u5df2\u6709\u6570\u636e\u6a21\u578b\u7684\u517c\u5bb9\u662f\u9700\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002 <\/p>\n

                \u6b64\u5916，\u5e94\u7528\u96c6\u6210\u662f\u53e6\u4e00\u4e2a\u6311\u6218，\u5982\u4f55\u4f7f\u73b0\u6709OPC DA\u5e94\u7528\u80fd\u591f\u65e0\u7f1d\u8fc7\u6e21\u5230OPC UA\u73af\u5883\u4e2d，\u9700\u8981\u7cfb\u7edf\u63d0\u4f9b\u5546\u548c\u8f6f\u4ef6\u5f00\u53d1\u8005\u5171\u540c\u52aa\u529b\u3002\u8fd8\u6709\u5b89\u5168\u95ee\u9898，OPC UA\u63d0\u4f9b\u4e86\u66f4\u4e3a\u590d\u6742\u7684\u8ba4\u8bc1\u548c\u6388\u6743\u673a\u5236，\u5982\u4f55\u5728\u4fdd\u8bc1\u5b89\u5168\u7684\u540c\u65f6\u4e0d\u5bf9\u73b0\u6709\u7cfb\u7edf\u9020\u6210\u5f71\u54cd，\u4e5f\u662f\u9700\u8981\u6df1\u5165\u7814\u7a76\u7684\u95ee\u9898\u3002 <\/p>\n

                \u5c3d\u7ba1\u9762\u4e34\u6311\u6218，\u878d\u5408OPC DA\u548cOPC UA\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u5e26\u6765\u4e86\u65b0\u7684\u673a\u9047\u3002\u672a\u6765\u7684\u53d1\u5c55\u65b9\u5411\u53ef\u80fd\u5305\u62ec\u63d0\u4f9b\u66f4\u591a\u5de5\u5177\u548c\u4e2d\u95f4\u4ef6\u6765\u7b80\u5316\u8f6c\u6362\u8fc7\u7a0b，\u4ee5\u53ca\u5236\u5b9a\u66f4\u4e3a\u7edf\u4e00\u7684\u5de5\u4e1a\u901a\u8baf\u6807\u51c6\u4ee5\u51cf\u5c11\u5f00\u53d1\u548c\u7ef4\u62a4\u6210\u672c\u3002 <\/p>\n

                7.2 OPC DA\u7684\u672a\u6765\u53d1\u5c55\u8d8b\u52bf <\/h3>\n

                7.2.1 \u65b0\u6807\u51c6\u7684\u91c7\u7eb3\u4e0e\u5e94\u7528\u524d\u666f <\/h4>\n

                \u968f\u7740\u6280\u672f\u7684\u53d1\u5c55，OPC DA\u7684\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u5c06\u4e0d\u518d\u5c40\u9650\u4e8e\u539f\u6709\u7684Windows\u5e73\u53f0，\u800c\u662f\u5411\u66f4\u4e3a\u5f00\u653e\u548c\u901a\u7528\u7684\u6807\u51c6\u6f14\u8fdb\u3002\u5c3d\u7ba1OPC UA\u7684\u51fa\u73b0\u7ed9OPC DA\u5e26\u6765\u4e86\u6311\u6218，\u4f46OPC DA\u51ed\u501f\u5176\u5728\u7279\u5b9a\u5e94\u7528\u9886\u57df\u7684\u6210\u719f\u5ea6\u548c\u7a33\u5b9a\u6027，\u4ecd\u5c06\u5728\u4e00\u5b9a\u65f6\u671f\u5185\u4fdd\u6301\u5176\u5730\u4f4d\u3002 <\/p>\n

                \u65b0\u6807\u51c6\u7684\u91c7\u7eb3\u5c06\u4e3b\u8981\u5173\u6ce8\u4e8e\u5982\u4f55\u5229\u7528OPC DA\u73b0\u6709\u7684\u8d44\u6e90\u548c\u4f18\u52bf，\u540c\u65f6\u62d3\u5c55\u5230\u66f4\u591a\u9886\u57df，\u5305\u62ec\u79fb\u52a8\u8bbe\u5907\u3001\u4e91\u5e73\u53f0\u4ee5\u53ca\u7269\u8054\u7f51(IoT)\u73af\u5883\u3002\u4f8b\u5982，OPC DA\u53ef\u80fd\u88ab\u96c6\u6210\u5230\u5404\u79cd\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d，\u4ee5\u4fbf\u4e8e\u5c0f\u578b\u8bbe\u5907\u80fd\u591f\u63a5\u5165\u5de5\u4e1a\u81ea\u52a8\u5316\u7f51\u7edc\u3002\u540c\u65f6，\u901a\u8fc7Web\u670d\u52a1\u7b49\u73b0\u4ee3\u901a\u8baf\u624b\u6bb5，OPC DA\u53ef\u4ee5\u5b9e\u73b0\u4e0e\u8fdc\u7a0b\u670d\u52a1\u5668\u7684\u6570\u636e\u4ea4\u6362\u3002 <\/p>\n

                7.2.2 \u8de8\u5e73\u53f0\u4e0e\u4e91\u6280\u672f\u7684\u7ed3\u5408\u5c55\u671b <\/h4>\n

                \u5c55\u671b\u672a\u6765，\u8de8\u5e73\u53f0\u80fd\u529b\u5c06\u6210\u4e3aOPC DA\u53d1\u5c55\u7684\u91cd\u70b9\u4e4b\u4e00\u3002\u901a\u8fc7\u5f15\u5165\u8de8\u5e73\u53f0\u7684\u8fd0\u884c\u65f6\u73af\u5883，\u5982.NET Core\u6216Docker\u5bb9\u5668，OPC DA\u53ef\u4ee5\u5728\u5404\u79cd\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u8fd0\u884c，\u4ece\u800c\u62d3\u5bbd\u5176\u5e94\u7528\u8303\u56f4\u3002\u540c\u65f6，\u5c06OPC DA\u4e0e\u4e91\u6280\u672f\u7ed3\u5408\u4e5f\u662f\u672a\u6765\u53d1\u5c55\u7684\u53e6\u4e00\u4e2a\u4eae\u70b9\u3002\u901a\u8fc7\u5c06\u6570\u636e\u6536\u96c6\u548c\u5904\u7406\u4efb\u52a1\u8fc1\u79fb\u5230\u4e91\u7aef，\u53ef\u4ee5\u5b9e\u73b0\u66f4\u4e3a\u9ad8\u6548\u7684\u6570\u636e\u7ba1\u7406\u548c\u5206\u6790，\u8fdb\u4e00\u6b65\u589e\u5f3a\u5de5\u4e1a\u81ea\u52a8\u5316\u7684\u667a\u80fd\u6c34\u5e73\u3002 <\/p>\n

                \u7ed3\u5408\u4e91\u6280\u672f，OPC DA\u7684\u6570\u636e\u8bbf\u95ee\u80fd\u529b\u53ef\u4ee5\u88ab\u66f4\u597d\u5730\u5229\u7528\u3002\u6570\u636e\u53ef\u4ee5\u88ab\u5b58\u50a8\u5728\u4e91\u7aef，\u4fbf\u4e8e\u96c6\u4e2d\u7ba1\u7406\u548c\u8fdc\u7a0b\u8bbf\u95ee，\u540c\u65f6\u4e91\u5e73\u53f0\u63d0\u4f9b\u7684\u5f3a\u5927\u8ba1\u7b97\u80fd\u529b\u53ef\u4ee5\u652f\u6301\u590d\u6742\u7684\u6570\u636e\u5206\u6790\u548c\u673a\u5668\u5b66\u4e60\u7b97\u6cd5，\u4ece\u800c\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u5e26\u6765\u66f4\u4e3a\u667a\u80fd\u7684\u6570\u636e\u5904\u7406\u80fd\u529b\u3002 <\/p>\n

                \u603b\u4e4b，OPC DA\u7684\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u5c06\u671d\u7740\u5f00\u653e\u6027\u3001\u667a\u80fd\u5316\u548c\u96c6\u6210\u5316\u65b9\u5411\u53d1\u5c55，\u4e0d\u65ad\u5438\u6536\u65b0\u6280\u672f\u4ee5\u9002\u5e94\u4e0d\u65ad\u53d8\u5316\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u9700\u6c42\u3002\u968f\u7740\u8fd9\u4e9b\u65b0\u6807\u51c6\u548c\u65b0\u6280\u672f\u7684\u5b9e\u65bd，OPC DA\u6709\u671b\u8fce\u6765\u65b0\u7684\u53d1\u5c55\u9ad8\u5cf0\u3002 <\/p>\n

                \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p>\n

                \u7b80\u4ecb：OPC DA（OLE for Process Control Data Access）\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7528\u4e8e\u4e0d\u540c\u8f6f\u786c\u4ef6\u7cfb\u7edf\u95f4\u6570\u636e\u4ea4\u6362\u7684\u6807\u51c6\u63a5\u53e3\u3002\u672c\u6307\u5357\u7b2c\u4e8c\u7ae0\u6df1\u5165\u89e3\u6790\u4e86OPC DA\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7a0b\u5e8f\u7684\u5f00\u53d1，\u6db5\u76d6\u4e86\u4ece\u670d\u52a1\u5668\u6ce8\u518c\u3001\u521d\u59cb\u5316\u3001\u63a5\u53e3\u5b9e\u73b0\u5230\u6570\u636e\u9879\u7ba1\u7406\u3001\u4e8b\u4ef6\u5904\u7406\u548c\u901a\u4fe1\u903b\u8f91\u7684\u5404\u4e2a\u65b9\u9762\u3002\u5f00\u53d1\u8005\u901a\u8fc7\u5b66\u4e60\u548c\u7406\u89e3\u8fd9\u4e9b\u6e90\u7801，\u5c06\u80fd\u591f\u66f4\u597d\u5730\u638c\u63e1OPC DA\u7684\u539f\u7406\u548c\u5b9e\u8df5，\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u9879\u76ee\u63d0\u4f9b\u9ad8\u6548\u7684\u6570\u636e\u4ea4\u6362\u80fd\u529b\u3002 <\/p>\n

                \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

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