{"id":46709,"date":"2025-07-30T04:01:52","date_gmt":"2025-07-29T20:01:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/46709.html"},"modified":"2025-07-30T04:01:52","modified_gmt":"2025-07-29T20:01:52","slug":"%e4%bd%bf%e7%94%a8vc%e5%bc%80%e5%8f%91opc%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%9a%e5%ae%9e%e4%be%8b%e8%af%a6%e8%a7%a3%e4%b8%8e%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/46709.html","title":{"rendered":"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5"},"content":{"rendered":"<p>  \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90&#xff0c;\u70b9\u51fb\u83b7\u53d6  <img decoding=\"async\" alt=\"menu-r.4af5f7ec.gif\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae0e5b3.gif\" style=\"width:16px;margin-left:4px;vertical-align:text-bottom;cursor:text\" \/> <\/p>\n<p> \u7b80\u4ecb&#xff1a;OPC\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7528\u4e8e\u8f6f\u4ef6\u95f4\u6570\u636e\u4ea4\u6362\u7684\u6807\u51c6\u3002\u672c\u5b9e\u4f8b\u5305\u4ee5VC&#043;&#043;\u4e3a\u57fa\u7840&#xff0c;\u901a\u8fc7\u793a\u4f8b\u9879\u76ee\u8ba9\u5f00\u53d1\u8005\u5b66\u4f1a\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406OPC\u670d\u52a1\u5668\u3002\u5305\u62ec\u5173\u952e\u6587\u4ef6\u5206\u6790\u3001\u9075\u5faaOPC\u89c4\u8303\u5f00\u53d1\u7684\u5173\u952e\u6982\u5ff5\u7406\u89e3\u548c\u5b9e\u8df5\u4efb\u52a1&#xff0c;\u6db5\u76d6\u4e86OPC\u901a\u4fe1\u673a\u5236\u7684\u6df1\u5165\u5b66\u4e60\u3002  <img decoding=\"async\" alt=\"OPC \u670d\u52a1\u5668\u5f00\u53d1\u5305VC&#043;&#043;\u5b9e\u4f8b\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae5c283.png\" \/> <\/p>\n<h2> 1. OPC\u7b80\u4ecb\u4e0e\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7684\u4f5c\u7528 <\/h2>\n<h3> 1.1 \u5de5\u4e1a\u81ea\u52a8\u5316\u4e0eOPC\u7684\u8d77\u6e90 <\/h3>\n<p> \u5de5\u4e1a\u81ea\u52a8\u5316\u662f\u5229\u7528\u5404\u79cd\u63a7\u5236\u6280\u672f\u3001\u8ba1\u7b97\u673a\u6280\u672f\u7b49\u4fe1\u606f\u5904\u7406\u6280\u672f\u6765\u5b9e\u73b0\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\u63a7\u5236\u3002\u5728\u81ea\u52a8\u5316\u9886\u57df&#xff0c;OPC&#xff08;OLE for Process Control&#xff0c;\u7528\u4e8e\u8fc7\u7a0b\u63a7\u5236\u7684OLE&#xff09;\u6280\u672f\u8d77\u5230\u4e86\u6865\u6881\u7684\u4f5c\u7528&#xff0c;\u5b83\u5141\u8bb8\u6765\u81ea\u4e0d\u540c\u5382\u5546\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u8bbe\u5907\u548c\u5e94\u7528\u8f6f\u4ef6\u4e4b\u95f4\u8fdb\u884c\u4e92\u64cd\u4f5c&#xff0c;\u4fc3\u8fdb\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u5316\u3002 <\/p>\n<h3> 1.2 OPC\u5728\u5de5\u4e1a\u7cfb\u7edf\u4e2d\u7684\u91cd\u8981\u6027 <\/h3>\n<p> \u968f\u7740\u5de5\u4e1a4.0\u7684\u53d1\u5c55\u548c\u667a\u80fd\u5236\u9020\u7684\u63a8\u8fdb&#xff0c;\u5de5\u4e1a\u7cfb\u7edf\u4e2d\u8bbe\u5907\u79cd\u7c7b\u7e41\u591a&#xff0c;\u5f02\u6784\u6027\u5f3a\u3002OPC\u7edf\u4e00\u4e86\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f&#xff0c;\u4f7f\u5de5\u7a0b\u5e08\u548c\u5f00\u53d1\u8005\u53ef\u4ee5\u5ffd\u7565\u5e95\u5c42\u8bbe\u5907\u7684\u5177\u4f53\u5b9e\u73b0&#xff0c;\u4e13\u6ce8\u4e8e\u5e94\u7528\u5c42\u7684\u5f00\u53d1&#xff0c;\u6781\u5927\u5730\u7b80\u5316\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u96c6\u6210\u7684\u590d\u6742\u5ea6\u3002 <\/p>\n<h3> 1.3 OPC\u6807\u51c6\u4e0e\u534f\u8bae <\/h3>\n<p> OPC\u4f5c\u4e3a\u4e00\u79cd\u5f00\u653e\u6807\u51c6&#xff0c;\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u63a5\u53e3&#xff0c;\u901a\u8fc7\u8fd9\u4e9b\u63a5\u53e3\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u5e73\u53f0\u4e0a\u7684\u8bbe\u5907\u548c\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u9ad8\u6548\u6570\u636e\u901a\u4fe1\u3002OPC\u6807\u51c6\u8986\u76d6\u4e86\u4ece\u8bbe\u5907\u901a\u8baf\u3001\u6570\u636e\u91c7\u96c6\u5230\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u7684\u5404\u79cd\u9700\u6c42&#xff0c;\u6781\u5927\u5730\u63d0\u5347\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u4e92\u64cd\u4f5c\u6027\u548c\u6a21\u5757\u5316\u3002 <\/p>\n<p> \u5728OPC\u7684\u4f17\u591a\u63a5\u53e3\u6807\u51c6\u4e2d&#xff0c;OPC DA&#xff08;Data Access&#xff09;\u662f\u6700\u4e3a\u7ecf\u5178\u7684&#xff0c;\u5b83\u4e3b\u8981\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u8bbf\u95ee\u3002\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55&#xff0c;OPC HDA&#xff08;Historical Data Access&#xff09;\u7528\u4e8e\u5386\u53f2\u6570\u636e\u8bbf\u95ee&#xff0c;\u800cOPC UA&#xff08;Unified Architecture&#xff09;\u5219\u65e8\u5728\u63d0\u4f9b\u4e00\u4e2a\u8de8\u5e73\u53f0\u3001\u5b89\u5168\u53ef\u9760\u7684\u6570\u636e\u901a\u4fe1\u89e3\u51b3\u65b9\u6848&#xff0c;\u5b83\u6574\u5408\u4e86\u6570\u636e\u8bbf\u95ee\u3001\u62a5\u8b66\u3001\u4e8b\u4ef6\u3001\u5386\u53f2\u6570\u636e\u548c\u7a0b\u5e8f\u8c03\u7528\u7b49\u591a\u79cd\u529f\u80fd\u3002 <\/p>\n<p> \u901a\u8fc7\u672c\u7ae0&#xff0c;\u8bfb\u8005\u5c06\u5bf9OPC\u6709\u4e00\u4e2a\u6574\u4f53\u7684\u8ba4\u8bc6&#xff0c;\u5e76\u4e86\u89e3\u5230\u5b83\u5728\u73b0\u4ee3\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u548c\u610f\u4e49\u3002\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u4e2d&#xff0c;\u6211\u4eec\u5c06\u6df1\u5165\u4e86\u89e3OPC\u670d\u52a1\u5668\u7684\u5f00\u53d1\u548c\u90e8\u7f72&#xff0c;\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7OPC\u5b9e\u73b0\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7684\u6570\u636e\u901a\u4fe1\u548c\u63a7\u5236\u3002 <\/p>\n<h2> 2. OPC\u670d\u52a1\u5668\u5f00\u53d1\u7684\u5173\u952e\u6587\u4ef6\u6982\u89c8 <\/h2>\n<h4> 2.1 \u5de5\u7a0b\u6587\u4ef6\u7684\u7ed3\u6784\u4e0e\u7ec4\u7ec7 <\/h4>\n<h5> 2.1.1 Visual C&#043;&#043;\u5de5\u7a0b\u6587\u4ef6\u5e03\u5c40 <\/h5>\n<p> \u5728Visual C&#043;&#043;\u5f00\u53d1\u73af\u5883\u4e2d&#xff0c;\u4e00\u4e2a\u5178\u578b\u7684OPC\u670d\u52a1\u5668\u5de5\u7a0b\u6587\u4ef6\u5e03\u5c40\u5305\u542b\u4ee5\u4e0b\u6838\u5fc3\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u7ed3\u6784&#xff1a; <\/p>\n<ul>\n<li>  \u5de5\u7a0b\u6587\u4ef6&#xff08;.vcxproj&#xff09;  : \u5305\u542b\u5de5\u7a0b\u7684\u7f16\u8bd1\u548c\u914d\u7f6e\u4fe1\u606f\u3002 <\/li>\n<li>  \u89e3\u51b3\u65b9\u6848\u6587\u4ef6&#xff08;.sln&#xff09;  : \u5305\u542b\u6240\u6709\u76f8\u5173\u5de5\u7a0b\u7684\u89e3\u51b3\u65b9\u6848\u3002 <\/li>\n<li>  \u6e90\u4ee3\u7801\u6587\u4ef6\u5939&#xff08;src\/&#xff09;  : \u5305\u542b\u6240\u6709\u6e90\u4ee3\u7801\u6587\u4ef6&#xff08;.cpp&#xff09;\u3002 <\/li>\n<li>  \u5934\u6587\u4ef6\u5939&#xff08;include\/&#xff09;  : \u5305\u542b\u6240\u6709\u5934\u6587\u4ef6&#xff08;.h&#xff09;\u3002 <\/li>\n<li>  \u8d44\u6e90\u6587\u4ef6\u5939&#xff08;res\/&#xff09;  : \u5305\u542b\u8d44\u6e90\u6587\u4ef6&#xff08;.rc&#xff09;&#xff0c;\u5982\u5bf9\u8bdd\u6846\u6a21\u677f\u3001\u56fe\u6807\u7b49\u3002 <\/li>\n<li>  \u914d\u7f6e\u6587\u4ef6\u5939&#xff08;config\/&#xff09;  : \u5305\u542b\u914d\u7f6e\u6587\u4ef6&#xff08;.ini\u6216.xml&#xff09;\u3002 <\/li>\n<li>  \u6587\u6863\u6587\u4ef6&#xff08;Readme.md&#xff09;  : \u5305\u542b\u9879\u76ee\u6587\u6863\u8bf4\u660e\u3002 <\/li>\n<\/ul>\n<p> \u4ee3\u7801\u5757\u5c55\u793a\u4e86\u5982\u4f55\u5728Visual C&#043;&#043;\u73af\u5883\u4e2d\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5de5\u7a0b\u9879\u76ee&#xff0c;\u5305\u542b\u4e00\u4e2aHello World\u793a\u4f8b&#xff1a; <\/p>\n<p>\/\/ example.vcxproj  (\u90e8\u5206)<br \/>\n&lt;PropertyGroup&gt;<br \/>\n  &lt;ConfigurationType&gt;Application&lt;\/ConfigurationType&gt;<br \/>\n  &lt;UseOfMfc&gt;UseMfc&lt;\/UseOfMfc&gt;<br \/>\n&lt;\/PropertyGroup&gt;<br \/>\n&lt;ItemGroup&gt;<br \/>\n  &lt;ClCompile Include&#061;&#034;src\\\\main.cpp&#034; \/&gt;<br \/>\n&lt;\/ItemGroup&gt;<\/p>\n<h4> 2.1.2 \u5934\u6587\u4ef6\u548c\u6e90\u6587\u4ef6\u7684\u4f5c\u7528 <\/h4>\n<h5> 2.1.2.1 \u5934\u6587\u4ef6&#xff08;.h&#xff09;\u7684\u5b9a\u4e49\u4e0e\u4f5c\u7528 <\/h5>\n<p> \u5934\u6587\u4ef6\u901a\u5e38\u7528\u4e8e\u58f0\u660e\u7c7b\u3001\u51fd\u6570\u539f\u578b\u3001\u5b8f\u5b9a\u4e49\u4ee5\u53ca\u4f7f\u7528extern\u5173\u952e\u5b57\u58f0\u660e\u5916\u90e8\u53d8\u91cf\u3002\u5b83\u4eec\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec&#xff1a; <\/p>\n<ul>\n<li>  \u7c7b\u578b\u5b9a\u4e49  : \u901a\u8fc7typedef\u6216struct\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\u3002 <\/li>\n<li>  \u51fd\u6570\u58f0\u660e  : \u63d0\u4f9b\u51fd\u6570\u7684\u63a5\u53e3&#xff0c;\u4f7f\u5f97\u5728\u6e90\u6587\u4ef6\u4e2d\u53ef\u4ee5\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\u3002 <\/li>\n<li>  \u5b8f\u5b9a\u4e49  : \u7b80\u5316\u4ee3\u7801&#xff0c;\u63d0\u4f9b\u4ee3\u7801\u7f16\u8bd1\u65f6\u7684\u5e38\u91cf\u6216\u6761\u4ef6\u7f16\u8bd1\u3002 <\/li>\n<li>  \u5916\u90e8\u53d8\u91cf\u58f0\u660e  : \u4f7f\u7528extern\u58f0\u660e\u7684\u53d8\u91cf\u53ef\u4ee5\u8de8\u6587\u4ef6\u5171\u4eab\u3002 <\/li>\n<\/ul>\n<h5> 2.1.2.2 \u6e90\u6587\u4ef6&#xff08;.cpp&#xff09;\u7684\u4f5c\u7528 <\/h5>\n<p> \u6e90\u6587\u4ef6\u5305\u542b\u4e86\u7a0b\u5e8f\u7684\u5b9e\u73b0\u7ec6\u8282&#xff0c;\u5373\u51fd\u6570\u7684\u5177\u4f53\u5b9a\u4e49\u548c\u7a0b\u5e8f\u7684\u4e3b\u51fd\u6570\u5165\u53e3\u3002\u5b83\u4eec\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec&#xff1a; <\/p>\n<ul>\n<li>  \u51fd\u6570\u5b9a\u4e49  : \u63d0\u4f9b\u4e86\u51fd\u6570\u58f0\u660e\u7684\u5b9e\u9645\u4ee3\u7801&#xff0c;\u5b9e\u73b0\u4e86\u51fd\u6570\u7684\u529f\u80fd\u3002 <\/li>\n<li>  \u4e3b\u51fd\u6570\u5165\u53e3  : \u7a0b\u5e8f\u7684\u6267\u884c\u59cb\u4e8emain\u51fd\u6570\u3002 <\/li>\n<li>  \u4ee3\u7801\u903b\u8f91  : \u5305\u542b\u4e86\u7a0b\u5e8f\u7684\u4e1a\u52a1\u903b\u8f91&#xff0c;\u5305\u62ec\u6570\u636e\u5904\u7406\u548c\u7b97\u6cd5\u5b9e\u73b0\u3002 <\/li>\n<\/ul>\n<h4> 2.2 \u914d\u7f6e\u6587\u4ef6\u4e0e\u8d44\u6e90\u6587\u4ef6\u89e3\u6790 <\/h4>\n<h5> 2.2.1 \u914d\u7f6e\u6587\u4ef6(.ini\u6216.xml)\u7684\u4f5c\u7528 <\/h5>\n<p> \u914d\u7f6e\u6587\u4ef6\u901a\u5e38\u7528\u4e8e\u5b58\u50a8\u5e94\u7528\u7a0b\u5e8f\u7684\u914d\u7f6e\u4fe1\u606f&#xff0c;\u5141\u8bb8\u5728\u4e0d\u4fee\u6539\u6e90\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u8c03\u6574\u7a0b\u5e8f\u884c\u4e3a\u3002\u5728OPC\u670d\u52a1\u5668\u4e2d&#xff0c;\u914d\u7f6e\u6587\u4ef6\u53ef\u4ee5\u5305\u542b\u8fde\u63a5\u4fe1\u606f\u3001\u670d\u52a1\u5668\u8bbe\u7f6e\u4ee5\u53ca\u5916\u90e8\u8d44\u6e90\u8def\u5f84\u7b49\u3002 <\/p>\n<ul>\n<li>  .ini\u6587\u4ef6  : \u7b80\u5355\u7684\u952e\u503c\u5bf9\u683c\u5f0f&#xff0c;\u9002\u7528\u4e8e\u5c0f\u578b\u5230\u4e2d\u578b\u914d\u7f6e\u3002 <\/li>\n<li>  .xml\u6587\u4ef6  : \u7ed3\u6784\u5316\u7684\u6807\u8bb0\u8bed\u8a00&#xff0c;\u9002\u7528\u4e8e\u590d\u6742\u7684\u914d\u7f6e\u4fe1\u606f\u3002 <\/li>\n<\/ul>\n<p># config.ini (\u793a\u4f8b)<br \/>\n[OPCServer]<br \/>\nAddress&#061;127.0.0.1<br \/>\nPort&#061;4840<\/p>\n<p>&lt;!&#8211; config.xml (\u793a\u4f8b) &#8211;&gt;<br \/>\n&lt;OPCServer&gt;<br \/>\n    &lt;Address&gt;127.0.0.1&lt;\/Address&gt;<br \/>\n    &lt;Port&gt;4840&lt;\/Port&gt;<br \/>\n&lt;\/OPCServer&gt;<\/p>\n<h5> 2.2.2 \u8d44\u6e90\u6587\u4ef6(.rc)\u7684\u7ba1\u7406 <\/h5>\n<p> \u8d44\u6e90\u6587\u4ef6\u7528\u4e8e\u5b9a\u4e49\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u7684\u975e\u4ee3\u7801\u8d44\u6e90&#xff0c;\u5982\u5bf9\u8bdd\u6846\u3001\u83dc\u5355\u3001\u5b57\u7b26\u4e32\u7b49\u3002\u5728OPC\u670d\u52a1\u5668\u5f00\u53d1\u4e2d&#xff0c;\u8d44\u6e90\u6587\u4ef6\u53ef\u4ee5\u7ba1\u7406\u7528\u6237\u754c\u9762\u5143\u7d20\u4ee5\u53ca\u7528\u4e8e\u670d\u52a1\u5668\u914d\u7f6e\u7684\u6587\u672c\u3002 <\/p>\n<p>\/\/ res\/resource.rc (\u90e8\u5206)<br \/>\nSTRINGTABLE<br \/>\nBEGIN<br \/>\n    IDS_APP_TITLE &#034;OPC Server&#034;<br \/>\nEND<\/p>\n<p> \u5728\u8d44\u6e90\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684\u5b57\u7b26\u4e32\u3001\u56fe\u6807\u548c\u5176\u4ed6\u8d44\u6e90\u53ef\u4ee5\u5728\u6e90\u4ee3\u7801\u4e2d\u901a\u8fc7\u8d44\u6e90ID\u8bbf\u95ee&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u5c06\u7528\u6237\u754c\u9762\u4e0e\u7a0b\u5e8f\u903b\u8f91\u5206\u79bb&#xff0c;\u6709\u52a9\u4e8e\u7a0b\u5e8f\u7684\u56fd\u9645\u5316\u548c\u672c\u5730\u5316\u3002 <\/p>\n<p> \u63a5\u4e0b\u6765&#xff0c;\u8ba9\u6211\u4eec\u6df1\u5165\u63a2\u7d22OPC\u670d\u52a1\u5668\u5f00\u53d1\u4e2d\u7684\u914d\u7f6e\u6587\u4ef6\u4e0e\u8d44\u6e90\u6587\u4ef6&#xff0c;\u4e86\u89e3\u5b83\u4eec\u5982\u4f55\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u53d1\u6325\u4f5c\u7528&#xff0c;\u5e76\u5206\u6790\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u5229\u7528\u8fd9\u4e9b\u6587\u4ef6\u4ee5\u589e\u5f3aOPC\u670d\u52a1\u5668\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002 <\/p>\n<h2> 3. OPC\u670d\u52a1\u5668\u5f00\u53d1\u7684\u5173\u952e\u6982\u5ff5\u7406\u89e3 <\/h2>\n<h3> 3.1 OPC\u63a5\u53e3\u6807\u51c6\u6982\u89c8 <\/h3>\n<h4> 3.1.1 OPC DA\u3001HDA\u548cUA\u7684\u5bf9\u6bd4 <\/h4>\n<p> OPC&#xff08;OLE for Process Control&#xff09;\u662f\u4e00\u4e2a\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u7684\u6807\u51c6&#xff0c;\u5b83\u5141\u8bb8\u72ec\u7acb\u7684\u8f6f\u4ef6\u5e94\u7528\u7a0b\u5e8f\u548c\u786c\u4ef6\u8bbe\u5907\u901a\u8fc7\u6807\u51c6\u5316\u7684\u63a5\u53e3\u4ea4\u6362\u6570\u636e\u548c\u4fe1\u606f\u3002\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55&#xff0c;OPC\u5df2\u7ecf\u884d\u751f\u51fa\u591a\u4e2a\u4e0d\u540c\u7684\u7248\u672c&#xff0c;\u4ee5\u6ee1\u8db3\u4e0d\u540c\u5c42\u6b21\u7684\u5e94\u7528\u9700\u6c42\u3002\u5176\u4e2d&#xff0c;OPC DA&#xff08;Data Access&#xff09;\u3001HDA&#xff08;Historical Data Access&#xff09;\u548cUA&#xff08;Unified Architecture&#xff09;\u662f\u4e09\u4e2a\u6700\u4e3a\u5e7f\u6cdb\u91c7\u7528\u7684\u6807\u51c6\u3002 <\/p>\n<ul>\n<li>\n<p>  OPC DA  \u662f\u6700\u65e9\u88ab\u5e7f\u6cdb\u91c7\u7528\u7684OPC\u6807\u51c6&#xff0c;\u4e3b\u8981\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u7684\u4ea4\u6362\u3002\u5b83\u4ee5COM&#xff08;Component Object Model&#xff09;\u4e3a\u57fa\u7840&#xff0c;\u4e3b\u8981\u7528\u4e8e\u73b0\u573a\u8bbe\u5907\u548c\u63a7\u5236\u7cfb\u7edf\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u4e92\u3002OPC DA\u9002\u7528\u4e8eWindows\u5e73\u53f0&#xff0c;\u652f\u6301\u5b9e\u65f6\u6570\u636e\u7684\u8bfb\u5199&#xff0c;\u4f46\u5176\u6269\u5c55\u6027\u548c\u7f51\u7edc\u529f\u80fd\u6709\u9650\u3002 <\/p>\n<\/li>\n<li>\n<p>  OPC HDA  \u662f\u9488\u5bf9\u5386\u53f2\u6570\u636e\u8bbf\u95ee\u7684OPC\u6807\u51c6\u3002\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d&#xff0c;\u5386\u53f2\u6570\u636e\u7684\u5206\u6790\u548c\u62a5\u544a\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002OPC HDA\u63d0\u4f9b\u4e86\u5bf9\u5386\u53f2\u6570\u636e\u7684\u8bfb\u53d6\u3001\u67e5\u8be2\u548c\u7ba1\u7406\u7684\u529f\u80fd&#xff0c;\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u5386\u53f2\u8d8b\u52bf\u6570\u636e\u4ee5\u53ca\u5f52\u6863\u6570\u636e\u3002\u4e0eOPC DA\u4e0d\u540c&#xff0c;OPC HDA\u901a\u5e38\u4e0d\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u7684\u8bbf\u95ee\u3002 <\/p>\n<\/li>\n<li>\n<p>  OPC UA  \u5219\u662fOPC\u57fa\u91d1\u4f1a\u63a8\u51fa\u7684\u4e0b\u4e00\u4ee3\u6807\u51c6&#xff0c;\u65e8\u5728\u89e3\u51b3\u4ee5\u524d\u6807\u51c6\u4e2d\u5b58\u5728\u7684\u53ef\u6269\u5c55\u6027\u3001\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u95ee\u9898\u3002OPC UA\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7edf\u4e00\u7684\u901a\u4fe1\u6846\u67b6&#xff0c;\u652f\u6301\u8de8\u5e73\u53f0\u5e94\u7528&#xff0c;\u5e76\u4e14\u5177\u5907\u4e30\u5bcc\u7684\u6570\u636e\u6a21\u578b\u5b9a\u4e49\u548c\u5b89\u5168\u901a\u4fe1\u673a\u5236\u3002OPC UA\u662f\u4e00\u4e2a\u5168\u9762\u7684\u6807\u51c6&#xff0c;\u6db5\u76d6\u4e86DA\u548cHDA\u7684\u529f\u80fd&#xff0c;\u540c\u65f6\u4e5f\u589e\u52a0\u4e86\u8bb8\u591a\u65b0\u529f\u80fd&#xff0c;\u5982\u8bbe\u5907\u7ba1\u7406\u3001\u5b89\u5168\u548c\u590d\u6742\u7684\u6570\u636e\u5904\u7406\u3002 <\/p>\n<\/li>\n<\/ul>\n<p> \u4e0b\u8868\u5c06\u5bf9\u8fd9\u4e09\u4e2a\u6807\u51c6\u8fdb\u884c\u7b80\u8981\u6bd4\u8f83&#xff1a; <\/p>\n<table>\n<tr> \u7279\u6027\/\u6807\u51c6  OPC DA  OPC HDA  OPC UA <\/tr>\n<tbody>\n<tr>\n<td> \u9002\u7528\u5e73\u53f0 <\/td>\n<td> Windows <\/td>\n<td> Windows <\/td>\n<td> \u8de8\u5e73\u53f0 <\/td>\n<\/tr>\n<tr>\n<td> \u6570\u636e\u7c7b\u578b <\/td>\n<td> \u5b9e\u65f6\u6570\u636e <\/td>\n<td> \u5386\u53f2\u6570\u636e <\/td>\n<td> \u5b9e\u65f6\u548c\u5386\u53f2\u6570\u636e <\/td>\n<\/tr>\n<tr>\n<td> \u7f51\u7edc\u529f\u80fd <\/td>\n<td> \u6709\u9650 <\/td>\n<td> \u6709\u9650 <\/td>\n<td> \u652f\u6301 <\/td>\n<\/tr>\n<tr>\n<td> \u5b89\u5168\u6027 <\/td>\n<td> \u6709\u9650 <\/td>\n<td> \u6709\u9650 <\/td>\n<td> \u9ad8 <\/td>\n<\/tr>\n<tr>\n<td> \u6269\u5c55\u6027 <\/td>\n<td> \u4f4e <\/td>\n<td> \u4f4e <\/td>\n<td> \u9ad8 <\/td>\n<\/tr>\n<tr>\n<td> \u6807\u51c6\u5316\u7a0b\u5ea6 <\/td>\n<td> \u8f83\u8001 <\/td>\n<td> \u8f83\u8001 <\/td>\n<td> \u6700\u65b0 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4> 3.1.2 \u670d\u52a1\u5668\u3001\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u63a5\u53e3 <\/h4>\n<p> \u5728OPC\u67b6\u6784\u4e2d&#xff0c;\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u662f\u4e24\u4e2a\u6838\u5fc3\u6982\u5ff5\u3002\u670d\u52a1\u5668\u8d1f\u8d23\u7ba1\u7406\u6570\u636e\u6e90&#xff0c;\u5e76\u63d0\u4f9b\u5bf9\u6570\u636e\u7684\u8bbf\u95ee\u3002\u5ba2\u6237\u7aef\u5219\u662f\u8bbf\u95ee\u8fd9\u4e9b\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u3002OPC\u5b9a\u4e49\u4e86\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u673a\u5236\u548c\u63a5\u53e3&#xff0c;\u4f7f\u5f97\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\u80fd\u591f\u4ece\u4e0d\u540c\u5382\u5546\u7684\u670d\u52a1\u5668\u4e0a\u8bfb\u53d6\u6570\u636e&#xff0c;\u800c\u65e0\u9700\u77e5\u9053\u6570\u636e\u662f\u5982\u4f55\u88ab\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u3002 <\/p>\n<p> \u670d\u52a1\u5668\u53ef\u4ee5\u662f\u76f4\u63a5\u8fde\u63a5\u5230\u73b0\u573a\u8bbe\u5907\u7684\u672c\u5730\u670d\u52a1\u5668&#xff0c;\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u4f4d\u4e8e\u7f51\u7edc\u4e2d\u7684\u8fdc\u7a0b\u670d\u52a1\u5668&#xff0c;\u5b83\u4eec\u901a\u8fc7\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u63a5\u53e3\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\u3002\u8fd9\u4e9b\u63a5\u53e3\u53ef\u4ee5\u662f\u540c\u6b65\u7684&#xff0c;\u5982DA\u63a5\u53e3&#xff0c;\u4e5f\u53ef\u4ee5\u662f\u5f02\u6b65\u7684&#xff0c;\u5982UA\u63a5\u53e3\u3002 <\/p>\n<p> \u670d\u52a1\u63a5\u53e3\u7684\u5b9a\u4e49\u9075\u5faaCOM\u6280\u672f\u89c4\u8303&#xff0c;\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u4e3b\u8981\u7684\u63a5\u53e3\u7c7b\u578b&#xff1a; <\/p>\n<ul>\n<li>  OPCBrowseServerAddressSpace  &#xff1a;\u63d0\u4f9b\u5bf9\u670d\u52a1\u5668\u5730\u5740\u7a7a\u95f4\u7684\u6d4f\u89c8\u529f\u80fd\u3002 <\/li>\n<li>  OPCItemMgt  &#xff1a;\u7ba1\u7406\u6570\u636e\u9879\u7684\u8ba2\u9605\u548c\u53d6\u6d88\u8ba2\u9605\u3002 <\/li>\n<li>  OPCGroupMgt  &#xff1a;\u7ba1\u7406\u6570\u636e\u9879\u5206\u7ec4&#xff0c;\u4ee5\u53ca\u6570\u636e\u7684\u8bfb\u53d6\u548c\u5199\u5165\u3002 <\/li>\n<li>  OPCAsyncIO  &#xff1a;\u652f\u6301\u5f02\u6b65\u8bfb\u5199\u6570\u636e\u3002 <\/li>\n<li>  OPCHDA  &#xff1a;\u63d0\u4f9b\u5386\u53f2\u6570\u636e\u8bbf\u95ee\u7684\u529f\u80fd\u3002 <\/li>\n<\/ul>\n<p> \u6bcf\u4e2a\u63a5\u53e3\u90fd\u662f\u4e3a\u4e86\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u800c\u8bbe\u8ba1\u7684&#xff0c;\u5ba2\u6237\u7aef\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u63a5\u53e3\u6765\u8bbf\u95ee\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u3002 <\/p>\n<h3> 3.2 OPC\u6570\u636e\u6a21\u578b\u4e0e\u5730\u5740\u7a7a\u95f4 <\/h3>\n<h4> 3.2.1 \u5730\u5740\u7a7a\u95f4\u7684\u6982\u5ff5\u548c\u7ec4\u6210 <\/h4>\n<p> OPC\u670d\u52a1\u5668\u7684\u5730\u5740\u7a7a\u95f4\u662f\u903b\u8f91\u4e0a\u7684\u4e00\u4e2a\u5b58\u50a8\u7a7a\u95f4&#xff0c;\u7528\u4e8e\u7ec4\u7ec7OPC\u670d\u52a1\u5668\u53ef\u4ee5\u63d0\u4f9b\u7684\u6570\u636e\u3002\u5b83\u6a21\u4eff\u4e86\u5178\u578b\u7684\u6587\u4ef6\u7cfb\u7edf\u76ee\u5f55\u7ed3\u6784&#xff0c;\u5141\u8bb8\u6570\u636e\u7ec4\u7ec7\u4e3a\u6811\u72b6\u7ed3\u6784&#xff0c;\u7c7b\u4f3c\u4e8e\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u6587\u4ef6\u5939\u548c\u6587\u4ef6\u3002\u5728OPC\u4e2d&#xff0c;\u6811\u7684\u6bcf\u4e00\u4e2a\u8282\u70b9\u90fd\u53ef\u4ee5\u770b\u4f5c\u662f\u4e00\u4e2a\u5bf9\u8c61\u6216\u53d8\u91cf&#xff0c;\u6bcf\u4e2a\u5bf9\u8c61\u6216\u53d8\u91cf\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u8bc6\u7b26&#xff08;ID&#xff09;&#xff0c;\u79f0\u4f5cItemID\u3002 <\/p>\n<p> \u5730\u5740\u7a7a\u95f4\u7684\u7ec4\u6210\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5143\u7d20&#xff1a; <\/p>\n<ul>\n<li>  Folders  &#xff08;\u6587\u4ef6\u5939&#xff09;&#xff1a;\u7528\u4e8e\u7ec4\u7ec7\u548c\u5206\u7c7b\u6570\u636e\u9879\u3002\u6587\u4ef6\u5939\u5185\u53ef\u4ee5\u5305\u542b\u6587\u4ef6\u5939\u548c\u6570\u636e\u9879&#xff0c;\u5f62\u6210\u5c42\u7ea7\u7ed3\u6784\u3002 <\/li>\n<li>  Items  &#xff08;\u6570\u636e\u9879&#xff09;&#xff1a;\u6570\u636e\u9879\u5bf9\u5e94\u4e8e\u5b9e\u9645\u7684\u76d1\u63a7\u70b9\u6216\u6570\u636e\u70b9&#xff0c;\u662f\u6700\u57fa\u672c\u7684\u6570\u636e\u8bbf\u95ee\u5355\u5143\u3002 <\/li>\n<li>  Properties  &#xff08;\u5c5e\u6027&#xff09;&#xff1a;\u6bcf\u4e2a\u6570\u636e\u9879\u53ef\u4ee5\u6709\u591a\u4e2a\u5c5e\u6027&#xff0c;\u8fd9\u4e9b\u5c5e\u6027\u5305\u542b\u4e86\u5173\u4e8e\u6570\u636e\u9879\u7684\u5143\u6570\u636e&#xff08;\u5982\u6807\u7b7e\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u503c\u8303\u56f4\u7b49&#xff09;\u3002 <\/li>\n<\/ul>\n<p> \u5730\u5740\u7a7a\u95f4\u7684\u8bbe\u8ba1\u548c\u5b9e\u73b0\u5bf9OPC\u670d\u52a1\u5668\u7684\u6027\u80fd\u548c\u6269\u5c55\u6027\u81f3\u5173\u91cd\u8981\u3002\u4e00\u4e2a\u597d\u7684\u5730\u5740\u7a7a\u95f4\u8bbe\u8ba1\u53ef\u4ee5\u7b80\u5316\u6570\u636e\u7684\u7ba1\u7406\u548c\u8bbf\u95ee&#xff0c;\u63d0\u9ad8\u6570\u636e\u4ea4\u4e92\u7684\u6548\u7387\u3002 <\/p>\n<h4> 3.2.2 \u6570\u636e\u9879\u3001\u5c5e\u6027\u548c\u53d8\u91cf\u7684\u5904\u7406 <\/h4>\n<p> \u5728OPC\u670d\u52a1\u5668\u4e2d&#xff0c;\u6570\u636e\u9879\u3001\u5c5e\u6027\u548c\u53d8\u91cf\u662f\u6784\u5efa\u5730\u5740\u7a7a\u95f4\u7684\u6838\u5fc3\u3002\u4ee5\u4e0b\u662f\u5b83\u4eec\u7684\u5b9a\u4e49\u548c\u5904\u7406\u65b9\u5f0f&#xff1a; <\/p>\n<ul>\n<li>\n<p>  \u6570\u636e\u9879&#xff08;Items&#xff09;  &#xff1a;\u6570\u636e\u9879\u4ee3\u8868\u4e86\u670d\u52a1\u5668\u4e2d\u7684\u5b9e\u9645\u6570\u636e\u70b9\u3002\u5b83\u4eec\u53ef\u4ee5\u4ee3\u8868\u4f20\u611f\u5668\u7684\u8bfb\u6570\u3001\u63a7\u5236\u8f93\u51fa\u3001\u62a5\u8b66\u72b6\u6001\u7b49\u7b49\u3002\u6570\u636e\u9879\u7684\u7ba1\u7406\u5305\u62ec\u589e\u52a0\u3001\u5220\u9664\u3001\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u5c5e\u6027&#xff08;Properties&#xff09;  &#xff1a;\u6bcf\u4e2a\u6570\u636e\u9879\u90fd\u6709\u4e00\u7cfb\u5217\u5c5e\u6027&#xff0c;\u8fd9\u4e9b\u5c5e\u6027\u63d0\u4f9b\u4e86\u5173\u4e8e\u6570\u636e\u9879\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u4f8b\u5982&#xff0c;\u4e00\u4e2a\u6e29\u5ea6\u4f20\u611f\u5668\u7684\u6570\u636e\u9879\u53ef\u80fd\u6709\u5982\u4e0b\u5c5e\u6027&#xff1a;\u540d\u79f0\u3001\u5355\u4f4d\u3001\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u8bfb\u53d6\u95f4\u9694\u7b49\u3002\u5c5e\u6027\u7684\u8bfb\u53d6\u662fOPC\u63a5\u53e3\u5e38\u89c1\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u53d8\u91cf&#xff08;Variables&#xff09;  &#xff1a;\u5728OPC UA\u4e2d&#xff0c;\u53d8\u91cf\u662f\u7528\u6765\u8868\u793a\u6570\u636e\u9879\u7684\u4e00\u79cd\u65b9\u5f0f\u3002OPC UA\u7684\u5730\u5740\u7a7a\u95f4\u662f\u7531\u5177\u6709\u5c42\u6b21\u7ed3\u6784\u7684\u53d8\u91cf\u6784\u6210&#xff0c;\u6bcf\u4e2a\u53d8\u91cf\u90fd\u6709\u81ea\u5df1\u7684\u503c\u4ee5\u53ca\u4e00\u7ec4\u5c5e\u6027&#xff0c;\u5b9a\u4e49\u4e86\u5176\u5143\u6570\u636e\u3002 <\/p>\n<\/li>\n<\/ul>\n<p> \u5728OPC\u89c4\u8303\u4e2d&#xff0c;\u8fd9\u4e9b\u5143\u7d20\u7684\u5904\u7406\u4e00\u822c\u6d89\u53ca\u5230\u4ee5\u4e0b\u7684\u64cd\u4f5c&#xff1a; <\/p>\n<ul>\n<li>  \u8bfb\u53d6&#xff08;Read&#xff09;  &#xff1a;\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u6570\u636e\u9879\u7684\u5f53\u524d\u503c\u548c\u5c5e\u6027\u4fe1\u606f\u3002 <\/li>\n<li>  \u5199\u5165&#xff08;Write&#xff09;  &#xff1a;\u5411\u670d\u52a1\u5668\u7684\u6570\u636e\u9879\u53d1\u9001\u65b0\u7684\u503c\u3002 <\/li>\n<li>  \u6d4f\u89c8&#xff08;Browse&#xff09;  &#xff1a;\u904d\u5386\u670d\u52a1\u5668\u5730\u5740\u7a7a\u95f4&#xff0c;\u68c0\u7d22\u6587\u4ef6\u5939\u548c\u6570\u636e\u9879\u7684\u7ec4\u7ec7\u7ed3\u6784\u3002 <\/li>\n<li>  \u8ba2\u9605&#xff08;Subscribe&#xff09;  &#xff1a;\u5ba2\u6237\u7aef\u53ef\u4ee5\u8ba2\u9605\u7279\u5b9a\u6570\u636e\u9879\u7684\u53d8\u5316&#xff0c;\u5f53\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6&#xff0c;\u670d\u52a1\u5668\u4e3b\u52a8\u901a\u77e5\u5ba2\u6237\u7aef\u3002 <\/li>\n<\/ul>\n<p> \u4f8b\u5982&#xff0c;\u4e00\u4e2aOPC DA\u670d\u52a1\u5668\u53ef\u4ee5\u63d0\u4f9b\u4ee5\u4e0bCOM\u63a5\u53e3\u65b9\u6cd5&#xff1a; <\/p>\n<p>\/\/ IDispatch \u63a5\u53e3\u65b9\u6cd5&#xff0c;\u7528\u4e8e\u8bfb\u53d6\u6570\u636e\u9879\u7684\u503c<br \/>\nHRESULT Read(<br \/>\n  [in] long dwCount,<br \/>\n  [in, size_is(dwCount)] OPCHDA_ITEM(Item) *pItemArray,<br \/>\n  [in] long bActive,<br \/>\n  [out, size_is(dwCount), size_alloc(dwCount)] OPCHDA_DATA(Item) **ppDataArray<br \/>\n);<\/p>\n<p>\/\/ IDispatch \u63a5\u53e3\u65b9\u6cd5&#xff0c;\u7528\u4e8e\u5199\u5165\u6570\u636e\u9879\u7684\u503c<br \/>\nHRESULT Write(<br \/>\n  [in] long dwCount,<br \/>\n  [in, size_is(dwCount)] OPCHDA_ITEM(Item) *pItemArray,<br \/>\n  [in] long bActive,<br \/>\n  [in, size_is(dwCount), size_alloc(dwCount)] OPCHDA_DATA(Item) *pDataArray<br \/>\n);<\/p>\n<p> \u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d&#xff0c;  Read  \u548c  Write  \u65b9\u6cd5\u5206\u522b\u7528\u4e8e\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u9879\u7684\u503c\u3002  dwCount  \u53c2\u6570\u6307\u5b9a\u8981\u64cd\u4f5c\u7684\u6570\u636e\u9879\u6570\u91cf&#xff0c;  pItemArray  \u6307\u5b9a\u4e86\u8981\u64cd\u4f5c\u7684\u6570\u636e\u9879\u6570\u7ec4&#xff0c;  bActive  \u53c2\u6570\u8868\u793a\u64cd\u4f5c\u662f\u5426\u7acb\u5373\u751f\u6548&#xff0c;  ppDataArray  \u548c  pDataArray  \u5206\u522b\u7528\u4e8e\u8fd4\u56de\u8bfb\u53d6\u7684\u6570\u636e\u548c\u63a5\u6536\u8981\u5199\u5165\u7684\u6570\u636e\u3002 <\/p>\n<p> OPC\u670d\u52a1\u5668\u5f00\u53d1\u4eba\u5458\u9700\u8981\u901a\u8fc7\u5b9e\u73b0\u8fd9\u4e9b\u63a5\u53e3\u6765\u66b4\u9732\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e&#xff0c;\u5e76\u786e\u4fdd\u5b83\u4eec\u80fd\u591f\u88ab\u5ba2\u6237\u7aef\u6b63\u786e\u5730\u8bfb\u53d6\u548c\u5199\u5165\u3002 <\/p>\n<h2> 4. OPC\u89c4\u8303\u4e0e\u901a\u4fe1\u534f\u8bae\u7684\u5b9e\u73b0 <\/h2>\n<h3> 4.1 OPC\u534f\u8bae\u6808\u548c\u6570\u636e\u4f20\u8f93 <\/h3>\n<h4> 4.1.1 TCP\/IP\u5728OPC\u4e2d\u7684\u5e94\u7528 <\/h4>\n<p> \u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df&#xff0c;\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u6548\u7387\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002TCP\/IP\u534f\u8bae\u7531\u4e8e\u5176\u7a33\u5b9a\u6027\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8eOPC\u6570\u636e\u4f20\u8f93\u3002\u5728OPC\u7ecf\u5178\u67b6\u6784\u4e2d&#xff0c;DA (Data Access) \u548cHDA (Historical Data Access) \u670d\u52a1\u901a\u5e38\u4f7f\u7528TCP\/IP\u8fdb\u884c\u6570\u636e\u901a\u4fe1\u3002TCP (Transmission Control Protocol) \u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u9760\u7684\u3001\u9762\u5411\u8fde\u63a5\u7684\u901a\u4fe1\u670d\u52a1&#xff0c;\u786e\u4fdd\u6570\u636e\u5305\u7684\u987a\u5e8f\u548c\u5b8c\u6574\u6027\u3002IP (Internet Protocol) \u8d1f\u8d23\u5c06\u8fd9\u4e9b\u6570\u636e\u5305\u4ece\u6e90\u4e3b\u673a\u4f20\u8f93\u5230\u76ee\u6807\u4e3b\u673a\u3002 <\/p>\n<p> \u4e3a\u4e86\u5728OPC\u4e2d\u4f7f\u7528TCP\/IP&#xff0c;\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u5c06\u5171\u540c\u534f\u5546\u786e\u5b9a\u8fde\u63a5\u53c2\u6570&#xff0c;\u5982\u7aef\u53e3\u53f7\u548cIP\u5730\u5740\u3002\u901a\u4fe1\u8fc7\u7a0b\u5305\u62ec\u5efa\u7acb\u8fde\u63a5\u3001\u6570\u636e\u4ea4\u6362\u548c\u65ad\u5f00\u8fde\u63a5\u4e09\u4e2a\u4e3b\u8981\u6b65\u9aa4\u3002\u8fde\u63a5\u5efa\u7acb\u540e&#xff0c;\u6570\u636e\u5373\u53ef\u5f00\u59cb\u4f20\u8f93&#xff0c;\u6570\u636e\u5305\u6309\u7167\u89c4\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u5c01\u88c5&#xff0c;\u7136\u540e\u901a\u8fc7\u7f51\u7edc\u5c42\u53d1\u9001\u5230\u5bf9\u7aef\u3002\u6570\u636e\u63a5\u6536\u7aef\u6536\u5230\u6570\u636e\u5305\u540e\u8fdb\u884c\u76f8\u5e94\u7684\u89e3\u6790&#xff0c;\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u6b63\u786e\u6027\u3002 <\/p>\n<p> \u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684TCP\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u901a\u4fe1\u7684\u4ee3\u7801\u793a\u4f8b&#xff0c;\u7528C&#043;&#043;\u7f16\u5199&#xff0c;\u5b83\u5c55\u793a\u4e86\u5982\u4f55\u5efa\u7acb\u4e00\u4e2aTCP\u8fde\u63a5\u4ee5\u53ca\u5982\u4f55\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002 <\/p>\n<p>\/\/ TCP Client Example<br \/>\n#include &lt;iostream&gt;<br \/>\n#include &lt;winsock2.h&gt;<\/p>\n<p>#pragma comment(lib, &#034;ws2_32.lib&#034;) \/\/ Winsock Library<\/p>\n<p>int main() {<br \/>\n    WSADATA wsaData;<br \/>\n    SOCKET clientSocket;<br \/>\n    struct sockaddr_in serverAddr;<br \/>\n    char message[] &#061; &#034;Hello, Server!&#034;;<br \/>\n    char serverReply[2000];<br \/>\n    int recvSize;<\/p>\n<p>    \/\/ \u521d\u59cb\u5316Winsock<br \/>\n    WSAStartup(MAKEWORD(2,2), &amp;wsaData);<\/p>\n<p>    \/\/ \u521b\u5efa\u5957\u63a5\u5b57<br \/>\n    clientSocket &#061; socket(AF_INET, SOCK_STREAM, 0);<\/p>\n<p>    \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\u7ed3\u6784<br \/>\n    serverAddr.sin_family &#061; AF_INET;<br \/>\n    serverAddr.sin_port &#061; htons(8888); \/\/ \u4f7f\u75281234\u7aef\u53e3<br \/>\n    serverAddr.sin_addr.s_addr &#061; inet_addr(&#034;127.0.0.1&#034;);<\/p>\n<p>    \/\/ \u8fde\u63a5\u5230\u670d\u52a1\u5668<br \/>\n    connect(clientSocket, (struct sockaddr*)&amp;serverAddr, sizeof(serverAddr));<\/p>\n<p>    \/\/ \u53d1\u9001\u6570\u636e<br \/>\n    send(clientSocket, message, strlen(message), 0);<\/p>\n<p>    \/\/ \u63a5\u6536\u6570\u636e<br \/>\n    recvSize &#061; recv(clientSocket, serverReply, 2000, 0);<br \/>\n    serverReply[recvSize] &#061; &#039;\\\\0&#039;;<br \/>\n    std::cout &lt;&lt; &#034;Reply received: &#034; &lt;&lt; serverReply &lt;&lt; std::endl;<\/p>\n<p>    \/\/ \u5173\u95ed\u5957\u63a5\u5b57<br \/>\n    closesocket(clientSocket);<br \/>\n    WSACleanup();<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<p>\/\/ TCP Server Example<br \/>\n#include &lt;iostream&gt;<br \/>\n#include &lt;winsock2.h&gt;<\/p>\n<p>#pragma comment(lib, &#034;ws2_32.lib&#034;) \/\/ Winsock Library<\/p>\n<p>int main() {<br \/>\n    WSADATA wsaData;<br \/>\n    SOCKET serverSocket, clientSocket;<br \/>\n    struct sockaddr_in serverAddr, clientAddr;<br \/>\n    int clientAddrSize &#061; sizeof(clientAddr);<br \/>\n    char message[] &#061; &#034;Hello, Client!&#034;;<br \/>\n    char clientRequest[2000];<br \/>\n    int recvSize;<\/p>\n<p>    \/\/ \u521d\u59cb\u5316Winsock<br \/>\n    WSAStartup(MAKEWORD(2,2), &amp;wsaData);<\/p>\n<p>    \/\/ \u521b\u5efa\u5957\u63a5\u5b57<br \/>\n    serverSocket &#061; socket(AF_INET, SOCK_STREAM, 0);<\/p>\n<p>    \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\u7ed3\u6784<br \/>\n    serverAddr.sin_family &#061; AF_INET;<br \/>\n    serverAddr.sin_port &#061; htons(8888);<br \/>\n    serverAddr.sin_addr.s_addr &#061; INADDR_ANY;<\/p>\n<p>    \/\/ \u7ed1\u5b9a\u5957\u63a5\u5b57<br \/>\n    bind(serverSocket, (struct sockaddr*)&amp;serverAddr, sizeof(serverAddr));<\/p>\n<p>    \/\/ \u5f00\u59cb\u76d1\u542c<br \/>\n    listen(serverSocket, 3);<\/p>\n<p>    \/\/ \u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<br \/>\n    clientSocket &#061; accept(serverSocket, (struct sockaddr*)&amp;clientAddr, &amp;clientAddrSize);<\/p>\n<p>    \/\/ \u63a5\u6536\u6570\u636e<br \/>\n    recvSize &#061; recv(clientSocket, clientRequest, 2000, 0);<br \/>\n    clientRequest[recvSize] &#061; &#039;\\\\0&#039;;<br \/>\n    std::cout &lt;&lt; &#034;Request received: &#034; &lt;&lt; clientRequest &lt;&lt; std::endl;<\/p>\n<p>    \/\/ \u53d1\u9001\u6570\u636e<br \/>\n    send(clientSocket, message, strlen(message), 0);<\/p>\n<p>    \/\/ \u5173\u95ed\u5957\u63a5\u5b57<br \/>\n    closesocket(clientSocket);<br \/>\n    closesocket(serverSocket);<br \/>\n    WSACleanup();<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<h4> 4.1.2 HTTP\u548cWeb\u670d\u52a1\u7684\u96c6\u6210 <\/h4>\n<p> \u9664\u4e86\u4f20\u7edf\u7684TCP\/IP\u901a\u4fe1&#xff0c;OPC\u89c4\u8303\u4e5f\u652f\u6301HTTP\u534f\u8bae&#xff0c;\u5c24\u5176\u662f\u5728OPC UA (Unified Architecture) \u4e2d&#xff0c;HTTP\u4f5c\u4e3a\u4f20\u8f93\u673a\u5236\u4e4b\u4e00\u88ab\u5e7f\u6cdb\u91c7\u7528\u3002HTTP (Hypertext Transfer Protocol) \u662fWeb\u5f00\u53d1\u4e2d\u4f7f\u7528\u7684\u6807\u51c6\u534f\u8bae&#xff0c;\u5b83\u57fa\u4e8eTCP\/IP&#xff0c;\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u6570\u636e\u4ea4\u6362\u65b9\u5f0f\u3002\u4e0eTCP\/IP\u76f8\u6bd4&#xff0c;HTTP\u66f4\u52a0\u8f7b\u91cf\u7ea7&#xff0c;\u5e76\u4e14\u6613\u4e8e\u901a\u8fc7\u9632\u706b\u5899&#xff0c;\u56e0\u4e3a\u5b83\u901a\u5e38\u4f7f\u752880\u7aef\u53e3\u3002 <\/p>\n<p> \u5728OPC UA\u4e2d&#xff0c;HTTP\u548cWeb\u670d\u52a1\u7684\u96c6\u6210\u5141\u8bb8OPC\u670d\u52a1\u5668\u901a\u8fc7\u6807\u51c6\u7684HTTP\u63a5\u53e3\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002\u8fd9\u4f7f\u5f97\u6570\u636e\u53ef\u4ee5\u901a\u8fc7Web\u9875\u9762\u6216Web\u670d\u52a1\u8fdb\u884c\u8bbf\u95ee&#xff0c;\u6269\u5c55\u4e86OPC\u7684\u5e94\u7528\u573a\u666f\u3002\u6b64\u5916&#xff0c;\u901a\u8fc7HTTP\u4f20\u8f93\u6570\u636e\u53ef\u4ee5\u4f7f\u7528SSL\/TLS\u8fdb\u884c\u52a0\u5bc6&#xff0c;\u589e\u5f3a\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u3002 <\/p>\n<p> HTTP\u5728OPC UA\u4e2d\u7684\u5e94\u7528\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762&#xff1a; <\/p>\n<li>\n<p>  RESTful\u63a5\u53e3  &#xff1a;\u901a\u8fc7RESTful API&#xff0c;\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528HTTP\u7684GET\u3001POST\u3001PUT\u3001DELETE\u7b49\u65b9\u6cd5\u6765\u8bbf\u95ee\u548c\u64cd\u4f5c\u670d\u52a1\u5668\u4e0a\u7684\u8d44\u6e90\u3002 <\/p>\n<\/li>\n<li>\n<p>  Web\u670d\u52a1\u63cf\u8ff0\u8bed\u8a00&#xff08;WSDL&#xff09;  &#xff1a;WSDL\u7528\u4e8e\u63cf\u8ff0Web\u670d\u52a1&#xff0c;\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u4e86\u89e3\u670d\u52a1\u7aef\u70b9\u3001\u64cd\u4f5c\u4ee5\u53ca\u901a\u4fe1\u534f\u8bae\u7b49\u4fe1\u606f\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u6570\u636e\u5e8f\u5217\u5316  &#xff1a;HTTP\u4f20\u8f93\u7684\u6570\u636e\u901a\u5e38\u9700\u8981\u88ab\u5e8f\u5217\u5316\u6210XML\u6216JSON\u7b49\u683c\u5f0f&#xff0c;\u4ee5\u4fbf\u4e8e\u5ba2\u6237\u7aef\u89e3\u6790\u548c\u7406\u89e3\u3002 <\/p>\n<\/li>\n<p> \u4e3a\u4e86\u5b9e\u73b0HTTP\u901a\u4fe1&#xff0c;\u4e00\u4e2a\u5178\u578b\u7684OPC UA\u670d\u52a1\u5668\u53ef\u80fd\u9700\u8981\u5305\u542b\u4ee5\u4e0b\u7ec4\u4ef6&#xff1a; <\/p>\n<ul>\n<li>  HTTP\u534f\u8bae\u6808  &#xff1a;\u8d1f\u8d23\u5904\u7406HTTP\u8bf7\u6c42\u548c\u54cd\u5e94\u3002 <\/li>\n<li>  \u6570\u636e\u5e8f\u5217\u5316\/\u53cd\u5e8f\u5217\u5316\u5668  &#xff1a;\u5c06\u670d\u52a1\u5668\u7aef\u7684\u6570\u636e\u7ed3\u6784\u8f6c\u6362\u6210\u9002\u5408HTTP\u4f20\u8f93\u7684\u683c\u5f0f\u3002 <\/li>\n<li>  \u6d88\u606f\u5904\u7406\u5668  &#xff1a;\u8d1f\u8d23\u89e3\u6790\u8bf7\u6c42&#xff0c;\u6267\u884c\u76f8\u5173\u64cd\u4f5c&#xff0c;\u5e76\u751f\u6210\u54cd\u5e94\u6d88\u606f\u3002 <\/li>\n<\/ul>\n<p> \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5316\u7684OPC UA\u670d\u52a1\u5668\u53ef\u80fd\u5b9e\u73b0\u7684\u4e00\u4e2aHTTP\u63a5\u53e3\u5904\u7406\u6d41\u7a0b\u7684\u4f2a\u4ee3\u7801&#xff1a; <\/p>\n<p>\/\/ OPC UA HTTP Server Interface Example<\/p>\n<p>#include &lt;iostream&gt;<br \/>\n#include &lt;restbed&gt;<\/p>\n<p>using namespace std;<br \/>\nusing namespace restbed;<\/p>\n<p>void get_handler( const shared_ptr&lt;Session&gt;&amp; session, const function&lt;void( const string&amp; )&gt;&amp; callback ) {<br \/>\n    \/\/ \u8bfb\u53d6\u6570\u636e\u903b\u8f91<br \/>\n    string response_data &#061; &#034;OPC UA Server Response&#034;;<\/p>\n<p>    \/\/ \u53d1\u9001HTTP\u54cd\u5e94<br \/>\n    session-&gt;close( OK, response_data, { { &#034;Content-Type&#034;, &#034;text\/plain&#034; } } );<br \/>\n}<\/p>\n<p>int main( int argc, char** argv ) {<br \/>\n    \/\/ \u521b\u5efaHTTP\u670d\u52a1\u5668<br \/>\n    Service service;<br \/>\n    service.set_port( 1234 ); \/\/ \u4f7f\u75281234\u7aef\u53e3<\/p>\n<p>    \/\/ \u914d\u7f6eGET\u8bf7\u6c42\u5904\u7406<br \/>\n    string resource &#061; &#034;\/data&#034;;<br \/>\n    service.get( resource, get_handler );<\/p>\n<p>    \/\/ \u542f\u52a8\u670d\u52a1<br \/>\n    service.start();<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<h3> 4.2 \u5b89\u5168\u673a\u5236\u4e0e\u8ba4\u8bc1\u6388\u6743 <\/h3>\n<h4> 4.2.1 \u5b89\u5168\u8ba4\u8bc1\u7684\u57fa\u672c\u539f\u7406 <\/h4>\n<p> \u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d&#xff0c;\u901a\u4fe1\u5b89\u5168\u81f3\u5173\u91cd\u8981&#xff0c;\u7279\u522b\u662f\u5728\u4e92\u8054\u7f51\u73af\u5883\u4e0b\u3002OPC\u89c4\u8303\u5b9a\u4e49\u4e86\u4e00\u5957\u5b89\u5168\u673a\u5236\u548c\u8ba4\u8bc1\u6388\u6743\u65b9\u6cd5&#xff0c;\u7528\u4e8e\u4fdd\u969c\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u548c\u7cfb\u7edf\u8d44\u6e90\u7684\u8bbf\u95ee\u63a7\u5236\u3002 <\/p>\n<p> \u5b89\u5168\u673a\u5236\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762&#xff1a; <\/p>\n<li>\n<p>  \u8eab\u4efd\u8ba4\u8bc1  &#xff1a;\u786e\u4fdd\u901a\u4fe1\u53cc\u65b9\u7684\u8eab\u4efd\u9a8c\u8bc1&#xff0c;\u5e38\u7528\u7684\u8ba4\u8bc1\u65b9\u5f0f\u5305\u62ec\u7528\u6237\u540d\/\u5bc6\u7801\u3001X.509\u8bc1\u4e66\u7b49\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u6570\u636e\u52a0\u5bc6  &#xff1a;\u4f7f\u7528\u52a0\u5bc6\u6280\u672f\u5bf9\u4f20\u8f93\u7684\u6570\u636e\u8fdb\u884c\u52a0\u5bc6&#xff0c;\u5982SSL\/TLS\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u6d88\u606f\u5b8c\u6574\u6027  &#xff1a;\u786e\u4fdd\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u88ab\u7be1\u6539&#xff0c;\u5e38\u89c1\u7684\u65b9\u6cd5\u6709\u6570\u5b57\u7b7e\u540d\u548c\u6d88\u606f\u6458\u8981\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u8bbf\u95ee\u63a7\u5236  &#xff1a;\u9650\u5236\u5bf9\u7279\u5b9a\u8d44\u6e90\u7684\u8bbf\u95ee&#xff0c;\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u624d\u80fd\u6267\u884c\u64cd\u4f5c\u3002 <\/p>\n<\/li>\n<h4> 4.2.2 \u8bbf\u95ee\u63a7\u5236\u548c\u52a0\u5bc6\u6280\u672f <\/h4>\n<p> \u8bbf\u95ee\u63a7\u5236\u662f\u5b89\u5168\u673a\u5236\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206&#xff0c;\u5b83\u6839\u636e\u7528\u6237\u7684\u8eab\u4efd\u548c\u6743\u9650&#xff0c;\u5bf9\u7cfb\u7edf\u4e2d\u7684\u8d44\u6e90\u8bbf\u95ee\u8fdb\u884c\u7ba1\u7406\u3002\u8bbf\u95ee\u63a7\u5236\u6a21\u578b\u901a\u5e38\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236&#xff08;RBAC&#xff09;&#xff0c;\u5b83\u5b9a\u4e49\u4e86\u7528\u6237\u89d2\u8272\u548c\u6743\u9650\u5206\u914d&#xff0c;\u901a\u8fc7\u89d2\u8272\u6765\u7ba1\u7406\u7528\u6237\u7684\u8bbf\u95ee\u6743\u9650\u3002 <\/p>\n<p> \u52a0\u5bc6\u6280\u672f\u7528\u4e8e\u4fdd\u62a4\u6570\u636e\u5728\u516c\u5171\u7f51\u7edc\u4e0a\u7684\u4f20\u8f93\u5b89\u5168\u3002\u5728OPC UA\u4e2d&#xff0c;\u901a\u8fc7TLS\/SSL\u5b9e\u73b0\u6570\u636e\u52a0\u5bc6\u548c\u5b89\u5168\u901a\u9053\u7684\u5efa\u7acb\u3002TLS (Transport Layer Security) \u548cSSL (Secure Sockets Layer) \u662f\u4e24\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u52a0\u5bc6\u534f\u8bae&#xff0c;\u5b83\u4eec\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u63d0\u4f9b\u673a\u5bc6\u6027\u3001\u6570\u636e\u5b8c\u6574\u6027\u548c\u8eab\u4efd\u9a8c\u8bc1\u3002 <\/p>\n<p> \u52a0\u5bc6\u8fc7\u7a0b\u6d89\u53ca\u516c\u94a5\u548c\u79c1\u94a5\u7684\u6982\u5ff5&#xff1a; <\/p>\n<ul>\n<li>  \u516c\u94a5  &#xff1a;\u53ef\u4ee5\u516c\u5f00\u7684\u5bc6\u94a5&#xff0c;\u7528\u4e8e\u52a0\u5bc6\u6570\u636e\u3002 <\/li>\n<li>  \u79c1\u94a5  &#xff1a;\u9700\u4fdd\u5bc6\u7684\u5bc6\u94a5&#xff0c;\u7528\u4e8e\u89e3\u5bc6\u6570\u636e\u3002 <\/li>\n<\/ul>\n<p> \u52a0\u5bc6\u548c\u89e3\u5bc6\u8fc7\u7a0b\u7684\u793a\u4f8b\u5982\u4e0b&#xff1a; <\/p>\n<p>\/\/ Simplified Encryption Example in C&#043;&#043;<\/p>\n<p>#include &lt;iostream&gt;<br \/>\n#include &lt;openssl\/rsa.h&gt;<br \/>\n#include &lt;openssl\/pem.h&gt;<br \/>\n#include &lt;openssl\/err.h&gt;<\/p>\n<p>RSA* generate_key_pair() {<br \/>\n    \/\/ \u751f\u6210RSA\u5bc6\u94a5\u5bf9<br \/>\n    \/\/ &#8230;<br \/>\n}<\/p>\n<p>std::string encrypt_text(const char* public_key, const std::string&amp; text) {<br \/>\n    \/\/ \u4f7f\u7528\u516c\u94a5\u52a0\u5bc6\u6587\u672c<br \/>\n    \/\/ &#8230;<br \/>\n    return encrypted_text;<br \/>\n}<\/p>\n<p>std::string decrypt_text(const char* private_key, const std::string&amp; encrypted_text) {<br \/>\n    \/\/ \u4f7f\u7528\u79c1\u94a5\u89e3\u5bc6\u6587\u672c<br \/>\n    \/\/ &#8230;<br \/>\n    return decrypted_text;<br \/>\n}<\/p>\n<p>int main() {<br \/>\n    \/\/ \u751f\u6210\u5bc6\u94a5\u5bf9<br \/>\n    RSA* key_pair &#061; generate_key_pair();<\/p>\n<p>    \/\/ \u52a0\u5bc6<br \/>\n    std::string encrypted_text &#061; encrypt_text((const char*)public_key, &#034;Secret Message&#034;);<\/p>\n<p>    \/\/ \u89e3\u5bc6<br \/>\n    std::string decrypted_text &#061; decrypt_text((const char*)private_key, encrypted_text);<\/p>\n<p>    std::cout &lt;&lt; &#034;Original: &#034; &lt;&lt; &#034;Secret Message&#034; &lt;&lt; std::endl;<br \/>\n    std::cout &lt;&lt; &#034;Decrypted: &#034; &lt;&lt; decrypted_text &lt;&lt; std::endl;<\/p>\n<p>    \/\/ \u6e05\u7406\u8d44\u6e90<br \/>\n    \/\/ &#8230;<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<p> \u901a\u8fc7\u4e0a\u8ff0\u793a\u4f8b&#xff0c;\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u516c\u94a5\u7528\u4e8e\u52a0\u5bc6\u6570\u636e&#xff0c;\u800c\u79c1\u94a5\u7528\u4e8e\u89e3\u5bc6\u6570\u636e\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u516c\u94a5\u53ef\u4ee5\u5b89\u5168\u5730\u5206\u53d1\u7ed9\u901a\u4fe1\u53cc\u65b9&#xff0c;\u800c\u79c1\u94a5\u9700\u8981\u4fdd\u6301\u673a\u5bc6&#xff0c;\u4ece\u800c\u786e\u4fdd\u4e86\u52a0\u5bc6\u901a\u4fe1\u7684\u5b89\u5168\u6027\u3002 <\/p>\n<h2> 5. VC&#043;&#043; MFC\u6846\u67b6\u5728OPC\u670d\u52a1\u5668\u6784\u5efa\u4e2d\u7684\u5e94\u7528 <\/h2>\n<h3> 5.1 MFC\u7c7b\u5e93\u548c\u7a97\u53e3\u7ba1\u7406 <\/h3>\n<h4> 5.1.1 MFC\u5728\u754c\u9762\u6784\u5efa\u4e2d\u7684\u4f5c\u7528 <\/h4>\n<p> Microsoft Foundation Classes (MFC) \u662f\u4e00\u4e2aC&#043;&#043;\u5e93&#xff0c;\u7528\u4e8e\u7b80\u5316\u57fa\u4e8eWindows\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u3002\u5b83\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5305\u542b\u9884\u5b9a\u4e49\u7c7b\u96c6\u5408\u7684\u6846\u67b6&#xff0c;\u8fd9\u4e9b\u7c7b\u5c01\u88c5\u4e86\u7a97\u53e3\u7ba1\u7406\u3001\u56fe\u5f62\u7ed8\u5236\u3001\u4e8b\u4ef6\u5904\u7406\u4ee5\u53ca\u5bf9Windows API\u7684\u8c03\u7528\u3002\u5728OPC\u670d\u52a1\u5668\u7684\u5f00\u53d1\u4e2d&#xff0c;MFC\u901a\u5e38\u7528\u4e8e\u6784\u5efa\u56fe\u5f62\u7528\u6237\u754c\u9762&#xff08;GUI&#xff09;&#xff0c;\u4f7f\u5f97\u670d\u52a1\u5668\u7684\u76d1\u63a7\u548c\u7ba1\u7406\u53d8\u5f97\u66f4\u52a0\u76f4\u89c2\u548c\u5bb9\u6613\u64cd\u4f5c\u3002 <\/p>\n<p> MFC\u5c06\u7a97\u53e3\u548c\u63a7\u4ef6\u7b49\u754c\u9762\u5143\u7d20\u62bd\u8c61\u5316\u4e3a\u5bf9\u8c61&#xff0c;\u5141\u8bb8\u5f00\u53d1\u8005\u901a\u8fc7\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u8fd9\u4e9b\u5bf9\u8c61\u3002\u4f8b\u5982&#xff0c;\u4e00\u4e2a\u6309\u94ae\u63a7\u4ef6\u5728MFC\u4e2d\u53ef\u4ee5\u770b\u4f5c\u662f\u4e00\u4e2aCButton\u5bf9\u8c61&#xff0c;\u5b83\u5177\u6709\u7279\u5b9a\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u6765\u5904\u7406\u663e\u793a\u3001\u70b9\u51fb\u4e8b\u4ef6\u7b49\u3002 <\/p>\n<h4> 5.1.2 \u6d88\u606f\u5904\u7406\u548c\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b <\/h4>\n<p> MFC\u91c7\u7528\u4e86\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u6a21\u578b&#xff0c;\u8fd9\u662fWindows\u5e94\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u8bbe\u8ba1\u6a21\u5f0f\u3002\u5728\u8be5\u6a21\u5f0f\u4e0b&#xff0c;\u5e94\u7528\u7a0b\u5e8f\u7684\u884c\u4e3a\u662f\u7531\u5916\u90e8\u4e8b\u4ef6&#xff08;\u5982\u7528\u6237\u70b9\u51fb\u3001\u5b9a\u65f6\u5668\u5230\u671f\u3001\u7a97\u53e3\u91cd\u7ed8\u7b49&#xff09;\u9a71\u52a8\u7684\u3002MFC\u901a\u8fc7\u6d88\u606f\u6620\u5c04\u673a\u5236&#xff08;message mapping mechanism&#xff09;\u5c06Windows\u6d88\u606f&#xff08;\u4f8b\u5982WM_COMMAND\u3001WM_PAINT\u7b49&#xff09;\u8f6c\u5316\u4e3a\u7c7b\u6210\u5458\u51fd\u6570\u7684\u8c03\u7528&#xff0c;\u6781\u5927\u5730\u7b80\u5316\u4e86\u4e8b\u4ef6\u5904\u7406\u7684\u590d\u6742\u6027\u3002 <\/p>\n<p> MFC\u4e2d\u7684\u6d88\u606f\u5904\u7406\u6d89\u53ca\u5230\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6982\u5ff5&#xff1a;  &#8211;  \u6d88\u606f\u961f\u5217&#xff08;Message Queue&#xff09;  &#xff1a;Windows\u7cfb\u7edf\u5c06\u6240\u6709\u7684\u7528\u6237\u8f93\u5165\u548c\u5176\u4ed6\u7cfb\u7edf\u6d88\u606f\u653e\u5165\u5e94\u7528\u7a0b\u5e8f\u7684\u6d88\u606f\u961f\u5217\u4e2d\u3002  &#8211;  \u6d88\u606f\u5faa\u73af&#xff08;Message Loop&#xff09;  &#xff1a;\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u4e00\u4e2a\u5faa\u73af\u4e0d\u65ad\u68c0\u67e5\u6d88\u606f\u961f\u5217&#xff0c;\u5e76\u83b7\u53d6\u6d88\u606f\u3002  &#8211;  \u6d88\u606f\u6620\u5c04&#xff08;Message Map&#xff09;  &#xff1a;\u5728MFC\u4e2d&#xff0c;\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528\u5b8f\u6765\u5b9a\u4e49\u6d88\u606f\u6620\u5c04&#xff0c;\u5c06\u7279\u5b9a\u7684\u6d88\u606f\u4e0e\u5904\u7406\u51fd\u6570\u5173\u8054\u8d77\u6765\u3002  &#8211;  \u6d88\u606f\u5904\u7406\u51fd\u6570&#xff08;Message Handler&#xff09;  &#xff1a;\u8fd9\u4e9b\u662f\u7c7b\u4e2d\u7684\u6210\u5458\u51fd\u6570&#xff0c;\u7528\u6765\u54cd\u5e94\u548c\u5904\u7406\u6d88\u606f\u3002 <\/p>\n<h3> 5.2 MFC\u5bf9OPC\u670d\u52a1\u5668\u7684\u652f\u6301 <\/h3>\n<h4> 5.2.1 MFC\u4e2d\u5b9e\u73b0COM\u7ec4\u4ef6\u7684\u673a\u5236 <\/h4>\n<p> \u7ec4\u4ef6\u5bf9\u8c61\u6a21\u578b&#xff08;COM&#xff09;\u662f\u4e00\u79cd\u4ee5\u7ec4\u4ef6\u4e3a\u5bf9\u8c61\u8fdb\u884c\u4ea4\u4e92\u7684\u7f16\u7a0b\u63a5\u53e3\u89c4\u8303&#xff0c;MFC\u652f\u6301\u5f00\u53d1\u8005\u521b\u5efa\u9075\u5faaCOM\u89c4\u8303\u7684\u7ec4\u4ef6\u3002OPC\u670d\u52a1\u5668\u672c\u8d28\u4e0a\u662f\u4e00\u4e2aCOM\u670d\u52a1\u5668&#xff0c;\u5b83\u5b9e\u73b0\u4e86OPC\u6807\u51c6\u5b9a\u4e49\u7684\u63a5\u53e3\u6765\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u3002 <\/p>\n<p> \u5728MFC\u4e2d\u5b9e\u73b0COM\u7ec4\u4ef6\u6d89\u53ca\u5230\u4ee5\u4e0b\u6b65\u9aa4&#xff1a;  &#8211;  \u5b9a\u4e49\u63a5\u53e3  &#xff1a;\u901a\u8fc7\u7eaf\u865a\u51fd\u6570\u5728\u7c7b\u4e2d\u5b9a\u4e49\u63a5\u53e3\u3002  &#8211;  \u5b9e\u73b0\u63a5\u53e3  &#xff1a;\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2a\u7c7b&#xff0c;\u7ee7\u627f\u81ea\u5b9a\u4e49\u7684\u63a5\u53e3&#xff0c;\u5e76\u5b9e\u73b0\u5176\u6240\u6709\u865a\u51fd\u6570\u3002  &#8211;  \u6ce8\u518cCOM\u5bf9\u8c61  &#xff1a;\u5c06COM\u7c7b\u4fe1\u606f\u6ce8\u518c\u5230Windows\u6ce8\u518c\u8868\u4e2d&#xff0c;\u4ee5\u4f7f\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u627e\u5230\u5e76\u4f7f\u7528\u8fd9\u4e9b\u7c7b\u3002 <\/p>\n<p> MFC\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u5b8f\u548c\u7c7b\u6765\u7b80\u5316COM\u7ec4\u4ef6\u7684\u521b\u5efa\u548c\u7ba1\u7406&#xff0c;\u4f8b\u5982\u4f7f\u7528  DECLARE_INTERFACE_MAP()  \u548c  BEGIN_INTERFACE_MAP()  \/  END_INTERFACE_MAP()  \u6765\u5b9a\u4e49\u548c\u6620\u5c04\u63a5\u53e3\u3002 <\/p>\n<h4> 5.2.2 MFC\u4e0eOPC\u6807\u51c6\u7684\u878d\u5408 <\/h4>\n<p> \u8981\u4f7f\u7528MFC\u6784\u5efaOPC\u670d\u52a1\u5668&#xff0c;\u5f00\u53d1\u8005\u9700\u8981\u6df1\u5165\u4e86\u89e3OPC\u89c4\u8303&#xff0c;\u4ee5\u53ca\u5982\u4f55\u5c06OPC\u6807\u51c6\u4e0eMFC\u6846\u67b6\u76f8\u878d\u5408\u3002\u901a\u5e38&#xff0c;\u8fd9\u6d89\u53ca\u5230\u4ee5\u4e0b\u6b65\u9aa4&#xff1a; <\/p>\n<ul>\n<li>  \u7406\u89e3OPC\u63a5\u53e3\u548c\u5c5e\u6027  &#xff1a;\u9996\u5148&#xff0c;\u5f00\u53d1\u8005\u9700\u8981\u719f\u6089OPC\u89c4\u8303\u5b9a\u4e49\u7684\u63a5\u53e3\u548c\u5c5e\u6027&#xff0c;\u5982IOPCServer\u3001IOPCItemMgt\u3001IOPCBrowse\u7b49\u3002 <\/li>\n<li>  \u5229\u7528MFC\u7c7b\u5e93  &#xff1a;\u4f7f\u7528MFC\u63d0\u4f9b\u7684\u7c7b\u6765\u8f85\u52a9\u5b9e\u73b0OPC\u63a5\u53e3\u3002\u4f8b\u5982&#xff0c;\u4f7f\u7528  COleControl  \u548c  COleServerDoc  \u7c7b\u6765\u6784\u5efa\u53ef\u88abOPC\u5ba2\u6237\u7aef\u4f7f\u7528\u7684COM\u5bf9\u8c61\u3002 <\/li>\n<li>  \u6784\u5efa\u81ea\u5b9a\u4e49\u7c7b  &#xff1a;\u6839\u636eOPC\u89c4\u8303\u8981\u6c42&#xff0c;\u6784\u5efa\u81ea\u5b9a\u4e49\u7c7b\u5e76\u5b9e\u73b0\u5fc5\u8981\u7684\u63a5\u53e3\u3002\u901a\u5e38\u9700\u8981\u7ee7\u627fMFC\u7c7b\u5e76\u5b9e\u73b0\u7ee7\u627f\u81ea  IUnknown  \u7684\u63a5\u53e3\u3002 <\/li>\n<li>  \u6ce8\u518c\u548c\u6fc0\u6d3bOPC\u670d\u52a1\u5668  &#xff1a;\u4f7f\u7528MFC\u63d0\u4f9b\u7684\u5de5\u5177\u6765\u6ce8\u518cCOM\u670d\u52a1\u5668&#xff0c;\u5e76\u786e\u4fdd\u5f53OPC\u5ba2\u6237\u7aef\u8c03\u7528\u65f6&#xff0c;\u80fd\u591f\u6fc0\u6d3b\u548c\u521d\u59cb\u5316\u670d\u52a1\u5668\u3002 <\/li>\n<\/ul>\n<p> MFC\u6781\u5927\u5730\u7b80\u5316\u4e86OPC\u670d\u52a1\u5668\u5f00\u53d1\u4e2d\u7684\u4e00\u4e9b\u91cd\u590d\u6027\u548c\u4f4e\u7ea7\u4efb\u52a1&#xff0c;\u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u66f4\u4e13\u6ce8\u4e8e\u5b9e\u73b0OPC\u6807\u51c6\u89c4\u8303\u8981\u6c42\u7684\u4e1a\u52a1\u903b\u8f91\u90e8\u5206\u3002\u901a\u8fc7MFC&#xff0c;\u5f00\u53d1\u8005\u80fd\u591f\u4ee5\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u6784\u5efa\u51fa\u65e2\u7b26\u5408OPC\u6807\u51c6\u53c8\u5177\u6709\u53cb\u597dGUI\u7684OPC\u670d\u52a1\u5668\u5e94\u7528\u7a0b\u5e8f\u3002 <\/p>\n<h2> 6. OPC\u63a5\u53e3\u7f16\u7a0b\u548cCOM\u6280\u672f\u7684\u5b9e\u8df5 <\/h2>\n<h3> 6.1 COM\u5bf9\u8c61\u6a21\u578b\u548c\u63a5\u53e3\u5b9a\u4e49 <\/h3>\n<h4> 6.1.1 COM\u7684\u57fa\u672c\u6982\u5ff5\u548c\u7ec4\u4ef6 <\/h4>\n<p> \u5728\u6df1\u5165\u4e86\u89e3OPC\u63a5\u53e3\u7f16\u7a0b\u4e4b\u524d&#xff0c;\u6211\u4eec\u9700\u8981\u5148\u638c\u63e1COM&#xff08;Component Object Model&#xff0c;\u7ec4\u4ef6\u5bf9\u8c61\u6a21\u578b&#xff09;\u7684\u57fa\u7840\u77e5\u8bc6\u3002COM\u662f\u4e00\u79cd\u8f6f\u4ef6\u67b6\u6784&#xff0c;\u5b83\u5b9a\u4e49\u4e86\u7ec4\u4ef6\u5982\u4f55\u76f8\u4e92\u4ea4\u4e92\u4ee5\u53ca\u5982\u4f55\u4e0e\u5e94\u7528\u7a0b\u5e8f\u901a\u4fe1\u3002COM\u7684\u6838\u5fc3\u7406\u5ff5\u662f\u5b9e\u73b0\u8bed\u8a00\u65e0\u5173\u6027\u548c\u4f4d\u7f6e\u900f\u660e\u6027&#xff0c;\u8fd9\u4f7f\u5f97\u7ec4\u4ef6\u53ef\u4ee5\u7531\u4e0d\u540c\u7684\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199&#xff0c;\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7\u7f51\u7edc\u5728\u4e0d\u540c\u7684\u673a\u5668\u4e0a\u901a\u4fe1\u3002 <\/p>\n<p> COM\u7684\u57fa\u77f3\u662f\u63a5\u53e3&#xff08;Interface&#xff09;&#xff0c;\u5b83\u662f\u4e00\u7ec4\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u4e8b\u4ef6\u7684\u58f0\u660e&#xff0c;\u8fd9\u4e9b\u58f0\u660e\u5b9a\u4e49\u4e86\u7ec4\u4ef6\u5982\u4f55\u88ab\u4f7f\u7528\u3002COM\u7ec4\u4ef6\u5b9e\u73b0\u4e86\u81f3\u5c11\u4e00\u4e2a\u63a5\u53e3&#xff0c;\u5ba2\u6237\u7aef\u901a\u8fc7\u63a5\u53e3\u4e0e\u7ec4\u4ef6\u4ea4\u4e92&#xff0c;\u4ece\u800c\u5b9e\u73b0\u7ec4\u4ef6\u7684\u529f\u80fd\u3002\u63a5\u53e3\u901a\u8fc7\u4e00\u4e2a\u5168\u5c40\u552f\u4e00\u7684\u6807\u8bc6\u7b26&#xff08;GUID&#xff09;\u6765\u552f\u4e00\u6807\u8bc6&#xff0c;\u4ee5\u786e\u4fdd\u8de8\u8bed\u8a00\u548c\u5e73\u53f0\u7684\u4e00\u81f4\u6027\u3002 <\/p>\n<p> \u6bcf\u4e2aCOM\u5bf9\u8c61\u90fd\u5fc5\u987b\u5b9e\u73b0\u4e00\u4e2a\u540d\u4e3a  IUnknown  \u7684\u57fa\u7840\u63a5\u53e3&#xff0c;\u5b83\u63d0\u4f9b\u4e86\u5f15\u7528\u8ba1\u6570\u7ba1\u7406&#xff08;AddRef \u548c Release \u65b9\u6cd5&#xff09;\u548c\u63a5\u53e3\u67e5\u8be2&#xff08;QueryInterface \u65b9\u6cd5&#xff09;\u7684\u529f\u80fd\u3002\u901a\u8fc7  QueryInterface  \u65b9\u6cd5&#xff0c;\u5ba2\u6237\u7aef\u53ef\u4ee5\u67e5\u8be2\u7ec4\u4ef6\u662f\u5426\u652f\u6301\u67d0\u4e2a\u63a5\u53e3&#xff0c;\u5e76\u83b7\u53d6\u5bf9\u8be5\u63a5\u53e3\u7684\u5f15\u7528\u3002 <\/p>\n<h4> 6.1.2 \u63a5\u53e3\u8bbe\u8ba1\u548c\u5b9e\u73b0 <\/h4>\n<p> \u8bbe\u8ba1COM\u63a5\u53e3\u9700\u8981\u9075\u5faa\u4e00\u7cfb\u5217\u89c4\u8303&#xff0c;\u5305\u62ec\u4fdd\u8bc1\u63a5\u53e3\u7684\u4e8c\u8fdb\u5236\u517c\u5bb9\u6027&#xff0c;\u8fd9\u5728\u7ec4\u4ef6\u9700\u8981\u66f4\u65b0\u65f6\u5c24\u5176\u91cd\u8981\u3002\u63a5\u53e3\u901a\u5e38\u4ee5\u201cI\u201d\u5f00\u5934&#xff0c;\u540e\u8ddf\u63a5\u53e3\u7684\u529f\u80fd\u540d\u79f0&#xff0c;\u4f8b\u5982  IDispatch  \u3002\u63a5\u53e3\u65b9\u6cd5\u7684\u547d\u540d\u901a\u5e38\u91c7\u7528\u52a8\u8bcd&#043;\u5bbe\u8bed\u7684\u5f62\u5f0f&#xff0c;\u4f8b\u5982  GetItem  \u3002 <\/p>\n<p> \u5b9e\u73b0COM\u63a5\u53e3\u65f6&#xff0c;\u5f00\u53d1\u8005\u9700\u8981\u4f7f\u7528\u652f\u6301COM\u7684\u7f16\u7a0b\u8bed\u8a00&#xff0c;\u5982C&#043;&#043;\u3001C#\u6216Delphi\u3002C&#043;&#043;\u662f\u6700\u4f20\u7edf\u7684\u9009\u62e9&#xff0c;\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u5bf9\u5185\u5b58\u7ba1\u7406\u7684\u5b8c\u5168\u63a7\u5236&#xff0c;\u8fd9\u662f\u5b9e\u73b0\u9ad8\u6548COM\u7ec4\u4ef6\u6240\u5fc5\u9700\u7684\u3002\u5728C&#043;&#043;\u4e2d&#xff0c;\u63a5\u53e3\u901a\u5e38\u901a\u8fc7\u865a\u51fd\u6570\u8868&#xff08;v-table&#xff09;\u5b9e\u73b0&#xff0c;\u4e14\u5fc5\u987b\u7528  virtual  \u5173\u952e\u5b57\u58f0\u660e\u865a\u51fd\u6570\u3002 <\/p>\n<p>\/\/ \u793a\u4f8b&#xff1a;\u5b9a\u4e49\u4e00\u4e2a\u7b80\u5355\u7684COM\u63a5\u53e3<br \/>\n#include &lt;Unknwnbase.h&gt;<\/p>\n<p>\/\/ \u5b9a\u4e49\u63a5\u53e3IDisSample<br \/>\ninterface IDisSample : public IUnknown {<br \/>\n    virtual HRESULT STDMETHODCALLTYPE SampleMethod() &#061; 0;<br \/>\n};<\/p>\n<p>\/\/ \u5b9e\u73b0\u63a5\u53e3\u7684\u65b9\u6cd5<br \/>\nHRESULT IDisSample::SampleMethod() {<br \/>\n    \/\/ \u5b9e\u73b0\u7ec6\u8282&#8230;<br \/>\n    return S_OK;<br \/>\n}<\/p>\n<p> \u4ee5\u4e0a\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5728C&#043;&#043;\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u7b80\u5355\u7684COM\u63a5\u53e3&#xff0c;\u5e76\u5b9e\u73b0\u4e86\u4e00\u4e2a\u65b9\u6cd5\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f&#xff0c;\u6240\u6709COM\u63a5\u53e3\u7684\u65b9\u6cd5\u90fd\u5fc5\u987b\u8fd4\u56de\u4e00\u4e2a  HRESULT  \u7c7b\u578b\u7684\u503c&#xff0c;\u5b83\u7528\u4e8e\u6307\u793a\u65b9\u6cd5\u8c03\u7528\u7684\u6210\u529f\u6216\u5931\u8d25\u3002 <\/p>\n<h3> 6.2 OPC\u81ea\u52a8\u5316\u63a5\u53e3\u7f16\u7a0b <\/h3>\n<h4> 6.2.1 \u81ea\u52a8\u5316\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef <\/h4>\n<p> OPC\u81ea\u52a8\u5316\u662f\u57fa\u4e8eCOM\u6280\u672f\u7684&#xff0c;\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5316\u7684\u65b9\u5f0f\u6765\u8bbf\u95eeOPC\u670d\u52a1\u5668&#xff0c;\u7c7b\u4f3c\u4e8eOLE\u81ea\u52a8\u5316\u3002\u81ea\u52a8\u5316\u670d\u52a1\u5668\u662f\u4e00\u4e2aCOM\u7ec4\u4ef6&#xff0c;\u5b83\u5c06\u5176\u5b9e\u73b0\u7684OPC\u63a5\u53e3\u66b4\u9732\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u5219\u662f\u4e00\u4e2a\u53ef\u4ee5\u7406\u89e3COM\u81ea\u52a8\u5316\u5bf9\u8c61\u548c\u8c03\u7528\u5176\u65b9\u6cd5\u7684\u7a0b\u5e8f\u3002 <\/p>\n<p> \u81ea\u52a8\u5316OPC\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u4ea4\u4e92\u901a\u5e38\u662f\u901a\u8fc7Microsoft\u7684OLE\u81ea\u52a8\u5316\u673a\u5236\u5b9e\u73b0\u7684\u3002\u8fd9\u79cd\u65b9\u5f0f\u4f7f\u5f97\u5373\u4f7f\u662f\u4e0d\u5177\u5907\u4e13\u4e1a\u77e5\u8bc6\u7684\u7a0b\u5e8f\u5458\u4e5f\u53ef\u4ee5\u5b9e\u73b0OPC\u5ba2\u6237\u7aef\u5e94\u7528\u7684\u5f00\u53d1\u3002\u5bf9\u4e8e\u719f\u6089VBScript\u6216JavaScript\u7684\u5f00\u53d1\u8005&#xff0c;\u8fd9\u5c06\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u5438\u5f15\u529b\u7684\u9009\u9879\u3002 <\/p>\n<h4> 6.2.2 \u6570\u636e\u5b58\u53d6\u548c\u65b9\u6cd5\u8c03\u7528\u7684\u81ea\u52a8\u5316\u5b9e\u73b0 <\/h4>\n<p> \u5728\u81ea\u52a8\u5316\u63a5\u53e3\u7f16\u7a0b\u4e2d&#xff0c;\u5b9e\u73b0\u6570\u636e\u5b58\u53d6\u548c\u65b9\u6cd5\u8c03\u7528\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4&#xff1a; <\/p>\n<li> \u521d\u59cb\u5316COM\u5e93\u548c\u521b\u5efa\u670d\u52a1\u5668\u5b9e\u4f8b\u3002 <\/li>\n<li> \u83b7\u53d6\u670d\u52a1\u5668\u4e0a\u5b9a\u4e49\u7684OPC\u63a5\u53e3\u7684\u5f15\u7528\u3002 <\/li>\n<li> \u901a\u8fc7\u63a5\u53e3\u8fdb\u884c\u6570\u636e\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002 <\/li>\n<li> \u5b8c\u6210\u64cd\u4f5c\u540e&#xff0c;\u91ca\u653e\u63a5\u53e3\u5f15\u7528\u5e76\u6e05\u7406COM\u73af\u5883\u3002 <\/li>\n<p> \u4f8b\u5982&#xff0c;\u521b\u5efa\u4e00\u4e2a\u81ea\u52a8\u5316OPC\u670d\u52a1\u5668\u7684\u5b9e\u4f8b\u548c\u8bbf\u95ee\u5176\u6570\u636e\u9879\u53ef\u80fd\u4f1a\u7528\u5230\u5982\u4e0b\u4ee3\u7801\u6bb5&#xff1a; <\/p>\n<p>\/\/ \u521d\u59cb\u5316COM\u5e93<br \/>\nCoInitialize(NULL);<\/p>\n<p>\/\/ \u521b\u5efaOPC\u81ea\u52a8\u5316\u670d\u52a1\u5668\u5b9e\u4f8b<br \/>\nIDisSample *pOPCServer;<br \/>\nCoCreateInstance(CLSID_OPCServer, NULL, CLSCTX_INPROC_SERVER, IID_IDisSample, (void**)&amp;pOPCServer);<\/p>\n<p>if (pOPCServer !&#061; NULL) {<br \/>\n    \/\/ \u83b7\u53d6\u81ea\u52a8\u5316\u63a5\u53e3<br \/>\n    IDisSample *pAutomation;<br \/>\n    HRESULT hr &#061; pOPCServer-&gt;QueryInterface(IID_IDisSample, (void**)&amp;pAutomation);<br \/>\n    if (SUCCEEDED(hr)) {<br \/>\n        \/\/ \u8c03\u7528\u81ea\u52a8\u5316\u63a5\u53e3\u65b9\u6cd5<br \/>\n        pAutomation-&gt;SampleMethod();<br \/>\n        \/\/ \u91ca\u653e\u63a5\u53e3\u5f15\u7528<br \/>\n        pAutomation-&gt;Release();<br \/>\n    }<br \/>\n    \/\/ \u91ca\u653e\u670d\u52a1\u5668\u5b9e\u4f8b<br \/>\n    pOPCServer-&gt;Release();<br \/>\n}<\/p>\n<p>\/\/ \u6e05\u7406COM\u5e93<br \/>\nCoUninitialize();<\/p>\n<p> \u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d&#xff0c;\u6211\u4eec\u521d\u59cb\u5316\u4e86COM\u5e93\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u81ea\u52a8\u5316\u670d\u52a1\u5668\u7684\u5b9e\u4f8b\u3002\u901a\u8fc7  QueryInterface  \u65b9\u6cd5&#xff0c;\u6211\u4eec\u83b7\u53d6\u4e86  IDisSample  \u63a5\u53e3\u7684\u5f15\u7528&#xff0c;\u5e76\u6267\u884c\u4e86\u4e00\u4e2a\u65b9\u6cd5\u8c03\u7528\u3002\u6700\u540e&#xff0c;\u6211\u4eec\u6e05\u7406\u4e86COM\u73af\u5883\u3002 <\/p>\n<p> \u8bf7\u6ce8\u610f&#xff0c;\u5b9e\u73b0OPC\u81ea\u52a8\u5316\u63a5\u53e3\u7f16\u7a0b\u65f6&#xff0c;\u6211\u4eec\u9700\u8981\u8be6\u7ec6\u5730\u9605\u8bfbOPC\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u6587\u6863\u6765\u7406\u89e3\u5177\u4f53\u7684\u63a5\u53e3\u5b9a\u4e49\u548c\u65b9\u6cd5\u8c03\u7528\u7ec6\u8282\u3002\u6bcf\u4e2aOPC\u670d\u52a1\u5668\u90fd\u53ef\u80fd\u63d0\u4f9b\u4e0d\u540c\u7684\u63a5\u53e3\u548c\u65b9\u6cd5&#xff0c;\u4f46\u57fa\u7840\u7684COM\u548c\u81ea\u52a8\u5316\u64cd\u4f5c\u903b\u8f91\u662f\u901a\u7528\u7684\u3002 <\/p>\n<h2> 7. OPC\u670d\u52a1\u5668\u5b9e\u4f8b\u9879\u76ee\u4e2d\u4ee3\u7801\u529f\u80fd\u7684\u5206\u6790 <\/h2>\n<h3> 7.1 \u5b9e\u4f8b\u9879\u76ee\u7684\u7ed3\u6784\u4e0e\u529f\u80fd\u6a21\u5757 <\/h3>\n<h4> \u9879\u76ee\u4ee3\u7801\u7684\u5c42\u6b21\u7ed3\u6784 <\/h4>\n<p> \u5728 OPC \u670d\u52a1\u5668\u5b9e\u4f8b\u9879\u76ee\u4e2d&#xff0c;\u4ee3\u7801\u7684\u5c42\u6b21\u7ed3\u6784\u662f\u81f3\u5173\u91cd\u8981\u7684&#xff0c;\u5b83\u76f4\u63a5\u5173\u7cfb\u5230\u9879\u76ee\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u901a\u5e38&#xff0c;\u4e00\u4e2a OPC \u670d\u52a1\u5668\u9879\u76ee\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u5c42\u6b21&#xff1a; <\/p>\n<ul>\n<li>  \u5e94\u7528\u5c42&#xff08;Application Layer&#xff09;  &#xff1a;\u8fd9\u662f\u4e0e\u7528\u6237\u76f4\u63a5\u4ea4\u4e92\u7684\u5c42\u6b21&#xff0c;\u8d1f\u8d23\u521b\u5efa\u670d\u52a1\u5668\u5b9e\u4f8b&#xff0c;\u6ce8\u518c OPC \u5bf9\u8c61&#xff0c;\u54cd\u5e94\u5ba2\u6237\u7aef\u8bf7\u6c42\u7b49\u3002 <\/li>\n<li>  \u670d\u52a1\u5c42&#xff08;Service Layer&#xff09;  &#xff1a;\u5904\u7406\u4e0e OPC \u6807\u51c6\u76f8\u5173\u7684\u5177\u4f53\u670d\u52a1&#xff0c;\u5982\u6570\u636e\u8bfb\u5199\u3001\u8ba2\u9605\u7ba1\u7406\u7b49\u3002 <\/li>\n<li>  \u6570\u636e\u8bbf\u95ee\u5c42&#xff08;Data Access Layer&#xff09;  &#xff1a;\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u63a5\u53e3&#xff0c;\u8d1f\u8d23\u6570\u636e\u7684\u91c7\u96c6\u548c\u5b58\u50a8\u3002 <\/li>\n<li>  \u786c\u4ef6\u62bd\u8c61\u5c42&#xff08;HAL&#xff09;  &#xff1a;\u9002\u914d\u4e0d\u540c\u786c\u4ef6\u8bbe\u5907\u548c\u6570\u636e\u683c\u5f0f&#xff0c;\u4e3a\u6570\u636e\u8bbf\u95ee\u5c42\u63d0\u4f9b\u7edf\u4e00\u7684\u6570\u636e\u683c\u5f0f\u548c\u63a5\u53e3\u3002 <\/li>\n<\/ul>\n<p> \u6bcf\u4e2a\u5c42\u6b21\u90fd\u4f1a\u5305\u542b\u4e00\u7cfb\u5217\u7684\u7c7b\u548c\u63a5\u53e3&#xff0c;\u5b83\u4eec\u76f8\u4e92\u534f\u4f5c\u5b8c\u6210\u670d\u52a1\u5668\u7684\u529f\u80fd\u3002\u901a\u8fc7\u5206\u5c42\u8bbe\u8ba1&#xff0c;\u6211\u4eec\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u7ba1\u7406\u548c\u66f4\u65b0\u6bcf\u4e2a\u5c42\u6b21\u7684\u529f\u80fd&#xff0c;\u800c\u4e0d\u9700\u8981\u5f71\u54cd\u5230\u5176\u4ed6\u5c42\u6b21\u3002 <\/p>\n<h4> \u5173\u952e\u6a21\u5757\u7684\u529f\u80fd\u5206\u6790 <\/h4>\n<p> \u5728\u5b9e\u4f8b\u9879\u76ee\u4e2d&#xff0c;\u6211\u4eec\u901a\u5e38\u4f1a\u53d1\u73b0\u51e0\u4e2a\u5173\u952e\u6a21\u5757&#xff0c;\u5b83\u4eec\u662f\u670d\u52a1\u5668\u8fd0\u884c\u7684\u6838\u5fc3\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u5206\u6790\u51e0\u4e2a\u5173\u952e\u6a21\u5757\u7684\u529f\u80fd&#xff1a; <\/p>\n<ul>\n<li>  \u670d\u52a1\u5668\u7ba1\u7406\u6a21\u5757  &#xff1a;\u8d1f\u8d23\u6574\u4e2a OPC \u670d\u52a1\u5668\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406&#xff0c;\u5305\u62ec\u521d\u59cb\u5316\u3001\u542f\u52a8\u3001\u5173\u95ed\u548c\u7ec8\u6b62\u64cd\u4f5c\u3002 <\/li>\n<li>  \u8bbe\u5907\u9a71\u52a8\u6a21\u5757  &#xff1a;\u4e0e\u73b0\u573a\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1&#xff0c;\u5b83\u8d1f\u8d23\u4ece\u8bbe\u5907\u4e2d\u8bfb\u53d6\u6570\u636e\u6216\u5c06\u547d\u4ee4\u53d1\u9001\u5230\u8bbe\u5907\u3002 <\/li>\n<li>  \u6570\u636e\u7f13\u5b58\u6a21\u5757  &#xff1a;\u5b58\u50a8\u548c\u7ba1\u7406\u5b9e\u65f6\u6570\u636e&#xff0c;\u63d0\u4f9b\u6570\u636e\u7f13\u51b2\u673a\u5236\u4ee5\u4f18\u5316\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u3002 <\/li>\n<li>  \u5b89\u5168\u6a21\u5757  &#xff1a;\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027&#xff0c;\u5b9e\u73b0\u8ba4\u8bc1\u3001\u6388\u6743\u548c\u52a0\u5bc6\u7b49\u5b89\u5168\u529f\u80fd\u3002 <\/li>\n<\/ul>\n<h3> 7.2 \u6ce8\u518c\u4fe1\u606f\u548c\u6570\u636e\u9879\u7684\u5904\u7406 <\/h3>\n<h4> \u6570\u636e\u9879\u7684\u6ce8\u518c\u6d41\u7a0b <\/h4>\n<p> \u6570\u636e\u9879\u7684\u6ce8\u518c\u662f OPC \u670d\u52a1\u5668\u521d\u59cb\u5316\u65f6\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5728 OPC \u6807\u51c6\u4e2d&#xff0c;\u6570\u636e\u9879\u901a\u5e38\u901a\u8fc7 OPC \u7ec4\u6765\u7ec4\u7ec7&#xff0c;\u7136\u540e\u8fdb\u4e00\u6b65\u5212\u5206\u4e3a OPC \u5143\u7d20\u9879\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u9879\u6ce8\u518c\u7684\u57fa\u672c\u6d41\u7a0b&#xff1a; <\/p>\n<li> \u521d\u59cb\u5316 OPC \u7ec4&#xff1a;\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2a OPC \u7ec4\u5bf9\u8c61&#xff0c;\u8fd9\u4e9b\u5bf9\u8c61\u5c06\u4f5c\u4e3a\u6570\u636e\u9879\u7684\u5bb9\u5668\u3002 <\/li>\n<li> \u6dfb\u52a0\u6570\u636e\u9879&#xff1a;\u4e3a\u6bcf\u4e2a\u60f3\u8981\u76d1\u63a7\u7684\u8bbe\u5907\u6216\u4fe1\u53f7\u521b\u5efa\u6570\u636e\u9879&#xff0c;\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u76f8\u5e94\u7684 OPC \u7ec4\u4e2d\u3002 <\/li>\n<li> \u914d\u7f6e\u6570\u636e\u9879\u5c5e\u6027&#xff1a;\u8bbe\u7f6e\u6570\u636e\u9879\u7684\u5c5e\u6027&#xff0c;\u4f8b\u5982\u8bfb\u5199\u6743\u9650\u3001\u6570\u636e\u7c7b\u578b\u3001\u8bbf\u95ee\u65b9\u5f0f\u7b49\u3002 <\/li>\n<li> \u6ce8\u518c\u56de\u8c03\u51fd\u6570&#xff1a;\u4e3a\u6570\u636e\u9879\u6ce8\u518c\u6570\u636e\u53d8\u5316\u7684\u56de\u8c03\u51fd\u6570&#xff0c;\u4ee5\u4fbf\u5f53\u6570\u636e\u9879\u503c\u53d1\u751f\u53d8\u5316\u65f6&#xff0c;\u670d\u52a1\u5668\u80fd\u591f\u901a\u77e5\u5230\u8ba2\u9605\u8005\u3002 <\/li>\n<h4> \u6570\u636e\u9879\u7684\u8bfb\u5199\u64cd\u4f5c\u5b9e\u73b0 <\/h4>\n<p> \u6570\u636e\u9879\u7684\u8bfb\u5199\u64cd\u4f5c\u662f OPC \u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u57fa\u7840\u3002\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u4f9d\u8d56\u4e8e\u6240\u9009\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\u548c OPC \u89c4\u8303\u7684\u7248\u672c&#xff0c;\u4f46\u4e00\u822c\u7684\u6b65\u9aa4\u5982\u4e0b&#xff1a; <\/p>\n<li>\n<p>  \u8bfb\u64cd\u4f5c  &#xff1a; <\/p>\n<ul>\n<li> \u5ba2\u6237\u7aef\u53d1\u51fa\u8bfb\u8bf7\u6c42&#xff0c;\u5305\u62ec\u8bf7\u6c42\u7684\u6570\u636e\u9879\u6807\u8bc6\u7b26\u3002 <\/li>\n<li> OPC \u670d\u52a1\u5668\u6839\u636e\u6807\u8bc6\u7b26\u627e\u5230\u5bf9\u5e94\u7684\u6570\u636e\u9879\u3002 <\/li>\n<li> \u4ece\u6570\u636e\u7f13\u5b58\u4e2d\u8bfb\u53d6\u6570\u636e\u9879\u7684\u5f53\u524d\u503c\u3002 <\/li>\n<li> \u5c06\u6570\u636e\u503c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002 <\/li>\n<\/ul>\n<\/li>\n<li>\n<p>  \u5199\u64cd\u4f5c  &#xff1a; <\/p>\n<ul>\n<li> \u5ba2\u6237\u7aef\u53d1\u51fa\u5199\u8bf7\u6c42&#xff0c;\u5305\u542b\u6570\u636e\u9879\u6807\u8bc6\u7b26\u548c\u65b0\u7684\u6570\u636e\u503c\u3002 <\/li>\n<li> OPC \u670d\u52a1\u5668\u9a8c\u8bc1\u5199\u64cd\u4f5c\u7684\u6743\u9650\u548c\u6570\u636e\u7c7b\u578b\u662f\u5426\u5339\u914d\u3002 <\/li>\n<li> \u66f4\u65b0\u5bf9\u5e94\u6570\u636e\u9879\u7684\u503c\u5230\u6570\u636e\u7f13\u5b58&#xff0c;\u5e76\u53ef\u80fd\u5c06\u66f4\u65b0\u4f20\u64ad\u5230\u73b0\u573a\u8bbe\u5907\u3002 <\/li>\n<li> \u5411\u5ba2\u6237\u7aef\u8fd4\u56de\u5199\u64cd\u4f5c\u7684\u7ed3\u679c\u3002 <\/li>\n<\/ul>\n<\/li>\n<p> \u4ee3\u7801\u793a\u4f8b&#xff08;\u7b80\u5316\u793a\u4f8b&#xff0c;\u975e\u5b9e\u9645\u53ef\u8fd0\u884c\u4ee3\u7801&#xff09;&#xff1a; <\/p>\n<p>\/\/ \u8bfb\u64cd\u4f5c\u793a\u4f8b<br \/>\nHRESULT ReadItem(IOpcItem* pItem, VARIANT* pValue)<br \/>\n{<br \/>\n    \/\/ \u5b9e\u73b0\u8bfb\u53d6\u903b\u8f91<br \/>\n    HRESULT hr &#061; pServer-&gt;Read(pItem, pValue);<br \/>\n    return hr;<br \/>\n}<\/p>\n<p>\/\/ \u5199\u64cd\u4f5c\u793a\u4f8b<br \/>\nHRESULT WriteItem(IOpcItem* pItem, VARIANT newValue)<br \/>\n{<br \/>\n    \/\/ \u5b9e\u73b0\u5199\u5165\u903b\u8f91<br \/>\n    HRESULT hr &#061; pServer-&gt;Write(pItem, &amp;newValue);<br \/>\n    return hr;<br \/>\n}<\/p>\n<p> \u4e0a\u8ff0\u7684  IOpcItem  \u662f\u4e00\u4e2a\u62bd\u8c61\u63a5\u53e3&#xff0c;\u4ee3\u8868 OPC \u670d\u52a1\u5668\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u9879\u3002\u5b9e\u9645\u7684\u5b9e\u73b0\u5c06\u4f9d\u8d56\u4e8e\u5177\u4f53\u7684 OPC \u670d\u52a1\u5668\u5e93\u3002\u5728 VC&#043;&#043; \u5f00\u53d1\u73af\u5883\u4e2d&#xff0c;\u901a\u5e38\u4f7f\u7528 COM \u63a5\u53e3\u548c\u5b9e\u73b0\u7c7b\u6765\u5904\u7406 OPC \u9879\u7684\u8bfb\u5199\u3002 <\/p>\n<p> \u4ee5\u4e0a\u6211\u4eec\u5206\u6790\u4e86 OPC \u670d\u52a1\u5668\u5b9e\u4f8b\u9879\u76ee\u4e2d\u4ee3\u7801\u529f\u80fd\u7684\u5206\u6790\u3002\u901a\u8fc7\u6df1\u5165\u7406\u89e3\u6570\u636e\u9879\u7684\u6ce8\u518c\u6d41\u7a0b\u4ee5\u53ca\u8bfb\u5199\u64cd\u4f5c\u7684\u5b9e\u73b0&#xff0c;\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u638c\u63e1 OPC \u670d\u52a1\u5668\u7684\u6838\u5fc3\u5de5\u4f5c\u673a\u5236\u3002\u5728\u4e0b\u4e00\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5c06\u7ee7\u7eed\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u5b9e\u73b0 OPC \u5ba2\u6237\u7aef\u7684\u6570\u636e\u8bf7\u6c42\u5904\u7406\u548c\u4e8b\u4ef6\u901a\u77e5\u3002 <\/p>\n<p>  \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90&#xff0c;\u70b9\u51fb\u83b7\u53d6  <img decoding=\"async\" alt=\"menu-r.4af5f7ec.gif\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae0e5b3.gif\" style=\"width:16px;margin-left:4px;vertical-align:text-bottom;cursor:text\" \/> <\/p>\n<p> \u7b80\u4ecb&#xff1a;OPC\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7528\u4e8e\u8f6f\u4ef6\u95f4\u6570\u636e\u4ea4\u6362\u7684\u6807\u51c6\u3002\u672c\u5b9e\u4f8b\u5305\u4ee5VC&#043;&#043;\u4e3a\u57fa\u7840&#xff0c;\u901a\u8fc7\u793a\u4f8b\u9879\u76ee\u8ba9\u5f00\u53d1\u8005\u5b66\u4f1a\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406OPC\u670d\u52a1\u5668\u3002\u5305\u62ec\u5173\u952e\u6587\u4ef6\u5206\u6790\u3001\u9075\u5faaOPC\u89c4\u8303\u5f00\u53d1\u7684\u5173\u952e\u6982\u5ff5\u7406\u89e3\u548c\u5b9e\u8df5\u4efb\u52a1&#xff0c;\u6db5\u76d6\u4e86OPC\u901a\u4fe1\u673a\u5236\u7684\u6df1\u5165\u5b66\u4e60\u3002 <\/p>\n<p>   \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90&#xff0c;\u70b9\u51fb\u83b7\u53d6   <img decoding=\"async\" alt=\"menu-r.4af5f7ec.gif\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae0e5b3.gif\" style=\"width:16px;margin-left:4px;vertical-align:text-bottom;cursor:text\" \/>  <\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb923\u6b21\uff0c\u70b9\u8d5e16\u6b21\uff0c\u6536\u85cf12\u6b21\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u662f\u5229\u7528\u5404\u79cd\u63a7\u5236\u6280\u672f\u3001\u8ba1\u7b97\u673a\u6280\u672f\u7b49\u4fe1\u606f\u5904\u7406\u6280\u672f\u6765\u5b9e\u73b0\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\u63a7\u5236\u3002\u5728\u81ea\u52a8\u5316\u9886\u57df\uff0cOPC\uff08OLE for Process Control\uff0c\u7528\u4e8e\u8fc7\u7a0b\u63a7\u5236\u7684OLE\uff09\u6280\u672f\u8d77\u5230\u4e86\u6865\u6881\u7684\u4f5c\u7528\uff0c\u5b83\u5141\u8bb8\u6765\u81ea\u4e0d\u540c\u5382\u5546\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u8bbe\u5907\u548c\u5e94\u7528\u8f6f\u4ef6\u4e4b\u95f4\u8fdb\u884c\u4e92\u64cd\u4f5c\uff0c\u4fc3\u8fdb\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u5316\u3002\u5934\u6587\u4ef6\u901a\u5e38\u7528\u4e8e\u58f0\u660e\u7c7b\u3001\u51fd\u6570\u539f\u578b\u3001\u5b8f\u5b9a\u4e49\u4ee5\u53ca\u4f7f\u7528extern\u5173\u952e\u5b57\u58f0\u660e\u5916\u90e8\u53d8\u91cf\u3002\u5b83\u4eec\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec\uff1a\u7c7b\u578b\u5b9a\u4e49: \u901a\u8fc7typedef\u6216struct\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\u3002\u51fd\u6570\u58f0\u660e\u3002<\/p>\n","protected":false},"author":2,"featured_media":46707,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-46709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/46709.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb923\u6b21\uff0c\u70b9\u8d5e16\u6b21\uff0c\u6536\u85cf12\u6b21\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u662f\u5229\u7528\u5404\u79cd\u63a7\u5236\u6280\u672f\u3001\u8ba1\u7b97\u673a\u6280\u672f\u7b49\u4fe1\u606f\u5904\u7406\u6280\u672f\u6765\u5b9e\u73b0\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\u63a7\u5236\u3002\u5728\u81ea\u52a8\u5316\u9886\u57df\uff0cOPC\uff08OLE for Process Control\uff0c\u7528\u4e8e\u8fc7\u7a0b\u63a7\u5236\u7684OLE\uff09\u6280\u672f\u8d77\u5230\u4e86\u6865\u6881\u7684\u4f5c\u7528\uff0c\u5b83\u5141\u8bb8\u6765\u81ea\u4e0d\u540c\u5382\u5546\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u8bbe\u5907\u548c\u5e94\u7528\u8f6f\u4ef6\u4e4b\u95f4\u8fdb\u884c\u4e92\u64cd\u4f5c\uff0c\u4fc3\u8fdb\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u5316\u3002\u5934\u6587\u4ef6\u901a\u5e38\u7528\u4e8e\u58f0\u660e\u7c7b\u3001\u51fd\u6570\u539f\u578b\u3001\u5b8f\u5b9a\u4e49\u4ee5\u53ca\u4f7f\u7528extern\u5173\u952e\u5b57\u58f0\u660e\u5916\u90e8\u53d8\u91cf\u3002\u5b83\u4eec\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec\uff1a\u7c7b\u578b\u5b9a\u4e49: \u901a\u8fc7typedef\u6216struct\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\u3002\u51fd\u6570\u58f0\u660e\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/46709.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-29T20:01:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae0e5b3.gif\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/46709.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/46709.html\",\"name\":\"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2025-07-29T20:01:52+00:00\",\"dateModified\":\"2025-07-29T20:01:52+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/46709.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/46709.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/46709.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/46709.html","og_locale":"zh_CN","og_type":"article","og_title":"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb923\u6b21\uff0c\u70b9\u8d5e16\u6b21\uff0c\u6536\u85cf12\u6b21\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u662f\u5229\u7528\u5404\u79cd\u63a7\u5236\u6280\u672f\u3001\u8ba1\u7b97\u673a\u6280\u672f\u7b49\u4fe1\u606f\u5904\u7406\u6280\u672f\u6765\u5b9e\u73b0\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\u63a7\u5236\u3002\u5728\u81ea\u52a8\u5316\u9886\u57df\uff0cOPC\uff08OLE for Process Control\uff0c\u7528\u4e8e\u8fc7\u7a0b\u63a7\u5236\u7684OLE\uff09\u6280\u672f\u8d77\u5230\u4e86\u6865\u6881\u7684\u4f5c\u7528\uff0c\u5b83\u5141\u8bb8\u6765\u81ea\u4e0d\u540c\u5382\u5546\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u8bbe\u5907\u548c\u5e94\u7528\u8f6f\u4ef6\u4e4b\u95f4\u8fdb\u884c\u4e92\u64cd\u4f5c\uff0c\u4fc3\u8fdb\u4e86\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u5316\u3002\u5934\u6587\u4ef6\u901a\u5e38\u7528\u4e8e\u58f0\u660e\u7c7b\u3001\u51fd\u6570\u539f\u578b\u3001\u5b8f\u5b9a\u4e49\u4ee5\u53ca\u4f7f\u7528extern\u5173\u952e\u5b57\u58f0\u660e\u5916\u90e8\u53d8\u91cf\u3002\u5b83\u4eec\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec\uff1a\u7c7b\u578b\u5b9a\u4e49: \u901a\u8fc7typedef\u6216struct\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\u3002\u51fd\u6570\u58f0\u660e\u3002","og_url":"https:\/\/www.wsisp.com\/helps\/46709.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2025-07-29T20:01:52+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729200150-688928ae0e5b3.gif"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"10 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/46709.html","url":"https:\/\/www.wsisp.com\/helps\/46709.html","name":"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2025-07-29T20:01:52+00:00","dateModified":"2025-07-29T20:01:52+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/46709.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/46709.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/46709.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u4f7f\u7528VC++\u5f00\u53d1OPC\u670d\u52a1\u5668\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u5b9e\u8df5"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/46709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=46709"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/46709\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/46707"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=46709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=46709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=46709"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=46709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}