{"id":76764,"date":"2026-02-23T09:33:14","date_gmt":"2026-02-23T01:33:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76764.html"},"modified":"2026-02-23T09:33:14","modified_gmt":"2026-02-23T01:33:14","slug":"%e4%bb%8e%e9%9b%b6%e5%bc%80%e5%a7%8b%ef%bc%9a%e7%94%a8%e7%94%9f%e6%b4%bb%e5%8c%96%e6%af%94%e5%96%bb%e6%8b%86%e8%a7%a3modbus%e6%95%b0%e6%8d%ae%e6%a8%a1%e5%9e%8b%e4%b8%8e%e5%af%84%e5%ad%98%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76764.html","title":{"rendered":"\u4ece\u96f6\u5f00\u59cb\uff1a\u7528\u751f\u6d3b\u5316\u6bd4\u55bb\u62c6\u89e3Modbus\u6570\u636e\u6a21\u578b\u4e0e\u5bc4\u5b58\u5668\u5bfb\u5740"},"content":{"rendered":"

\u4ece\u96f6\u5f00\u59cb：\u7528\u751f\u6d3b\u5316\u6bd4\u55bb\u62c6\u89e3Modbus\u6570\u636e\u6a21\u578b\u4e0e\u5bc4\u5b58\u5668\u5bfb\u5740<\/h2>\n

\u60f3\u8c61\u4e00\u4e0b，\u4f60\u7b2c\u4e00\u6b21\u8d70\u8fdb\u4e00\u4e2a\u5de8\u5927\u7684\u56fe\u4e66\u9986，\u4e66\u67b6\u4e0a\u6446\u6ee1\u4e86\u5404\u79cd\u4e66\u7c4d\u548c\u6742\u5fd7，\u4f46\u6ca1\u6709\u4efb\u4f55\u6807\u8bc6\u3002\u4f60\u53ef\u80fd\u4f1a\u611f\u5230\u8ff7\u832b，\u4e0d\u77e5\u9053\u4ece\u54ea\u91cc\u5f00\u59cb\u5bfb\u627e\u4f60\u9700\u8981\u7684\u4fe1\u606f\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u7684Modbus\u534f\u8bae\u5bf9\u521d\u5b66\u8005\u6765\u8bf4，\u5c31\u50cf\u8fd9\u6837\u4e00\u4e2a\u770b\u4f3c\u590d\u6742\u4f46\u5b9e\u5219\u6709\u5e8f\u7684\u7cfb\u7edf\u3002Modbus\u534f\u8bae\u4f5c\u4e3a\u5de5\u4e1a\u901a\u4fe1\u7684\u57fa\u77f3，\u5176\u6570\u636e\u6a21\u578b\u548c\u5bc4\u5b58\u5668\u5bfb\u5740\u673a\u5236\u5e38\u5e38\u8ba9\u65b0\u624b\u671b\u800c\u751f\u754f\u3002\u4f46\u522b\u62c5\u5fc3，\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u751f\u6d3b\u5316\u7684\u6bd4\u55bb\u2014\u2014\u5c06Modbus\u6bd4\u4f5c\u4e00\u4e2a\u7cbe\u5fc3\u7ec4\u7ec7\u7684\u56fe\u4e66\u9986\u2014\u2014\u6765\u8f7b\u677e\u62c6\u89e3\u8fd9\u4e9b\u6982\u5ff5\u3002\u65e0\u8bba\u4f60\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u521d\u5b66\u8005，\u8fd8\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005\u5e0c\u671b\u96c6\u6210Modbus\u8bbe\u5907，\u8fd9\u7bc7\u6587\u7ae0\u5c06\u5e26\u4f60\u4ece\u96f6\u5f00\u59cb，\u7528\u901a\u4fd7\u6613\u61c2\u7684\u65b9\u5f0f\u7406\u89e3Modbus\u7684\u6838\u5fc3\u673a\u5236，\u907f\u514d\u5e38\u89c1\u8bef\u533a，\u5e76\u5feb\u901f\u5e94\u7528\u5230\u5b9e\u9645\u9879\u76ee\u4e2d\u3002<\/p>\n

1. Modbus\u6570\u636e\u6a21\u578b：\u56fe\u4e66\u9986\u7684\u4e66\u67b6\u7cfb\u7edf<\/h3>\n

Modbus\u534f\u8bae\u5b9a\u4e49\u4e86\u56db\u79cd\u57fa\u672c\u6570\u636e\u6a21\u578b，\u5c31\u50cf\u56fe\u4e66\u9986\u4e2d\u7684\u4e0d\u540c\u4e66\u67b6\u533a\u57df，\u6bcf\u79cd\u533a\u57df\u5b58\u653e\u7279\u5b9a\u7c7b\u578b\u7684\u9605\u8bfb\u6750\u6599，\u5e76\u6709\u4e0d\u540c\u7684\u8bbf\u95ee\u89c4\u5219\u3002\u8fd9\u4e9b\u6a21\u578b\u5305\u62ec\u79bb\u6563\u91cf\u8f93\u5165（DI）\u3001\u79bb\u6563\u91cf\u8f93\u51fa（DQ，\u4e5f\u79f0\u4e3a\u7ebf\u5708）\u3001\u8f93\u5165\u5bc4\u5b58\u5668（IR）\u548c\u4fdd\u6301\u5bc4\u5b58\u5668（HR）\u3002\u7406\u89e3\u8fd9\u4e9b\u6a21\u578b\u662f\u638c\u63e1Modbus\u7684\u7b2c\u4e00\u6b65，\u56e0\u4e3a\u5b83\u4eec\u6784\u6210\u4e86\u6570\u636e\u8bbf\u95ee\u7684\u57fa\u7840\u3002<\/p>\n

\u79bb\u6563\u91cf\u8f93\u5165（DI） \u7c7b\u4f3c\u4e8e\u56fe\u4e66\u9986\u7684\u53ea\u8bfb\u6742\u5fd7\u533a\u3002\u8fd9\u91cc\u7684\u4fe1\u606f\u662f\u5355\u5411\u7684\u2014\u2014\u4f60\u53ea\u80fd\u9605\u8bfb，\u4e0d\u80fd\u4fee\u6539\u3002\u4f8b\u5982，\u4f20\u611f\u5668\u68c0\u6d4b\u5230\u7684\u5f00\u5173\u72b6\u6001（\u5982\u95e8\u662f\u5426\u6253\u5f00）\u5c31\u6620\u5c04\u5230DI\u533a\u57df\u3002\u5b83\u53ea\u652f\u6301\u4f4d（bit）\u7ea7\u522b\u7684\u8bbf\u95ee，\u610f\u5473\u7740\u6bcf\u4e2a\u5143\u7d20\u4ee3\u8868\u4e00\u4e2a\u7b80\u5355\u7684\u4e8c\u8fdb\u5236\u72b6\u6001：0\u62161\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，DI\u5e38\u7528\u4e8e\u76d1\u63a7\u53ea\u8bfb\u4fe1\u53f7，\u5982\u5b89\u5168\u5f00\u5173\u6216\u62a5\u8b66\u89e6\u53d1\u3002<\/p>\n

\u79bb\u6563\u91cf\u8f93\u51fa（DQ\/\u7ebf\u5708） \u5219\u50cf\u53ef\u501f\u9605\u7684\u56fe\u4e66\u533a\u3002\u4f60\u53ef\u4ee5\u4ece\u8fd9\u91cc\u501f\u4e66（\u8bfb\u53d6\u72b6\u6001），\u4e5f\u53ef\u4ee5\u8fd8\u4e66\u6216\u66f4\u65b0\u4e66\u7c4d（\u5199\u5165\u72b6\u6001）\u3002DQ\u4e5f\u4ee5\u4f4d\u4e3a\u5355\u4f4d\u64cd\u4f5c，\u7528\u4e8e\u63a7\u5236\u8f93\u51fa\u8bbe\u5907，\u5982\u7ee7\u7535\u5668\u7684\u5f00\u5173\u3002\u4f8b\u5982，\u901a\u8fc7\u8bbe\u7f6eDQ\u7684\u67d0\u4e2a\u4f4d\u4e3a1，\u53ef\u4ee5\u542f\u52a8\u4e00\u4e2a\u7535\u673a；\u8bfb\u53d6\u5b83\u5219\u80fd\u68c0\u67e5\u5f53\u524d\u72b6\u6001\u3002\u8fd9\u79cd\u8bfb\u5199\u7075\u6d3b\u6027\u4f7f\u5176\u6210\u4e3a\u63a7\u5236\u903b\u8f91\u7684\u6838\u5fc3\u3002<\/p>\n

\u8f93\u5165\u5bc4\u5b58\u5668（IR） \u548c \u4fdd\u6301\u5bc4\u5b58\u5668（HR） \u5219\u5347\u7ea7\u5230\u4e86\u5b57（WORD）\u7ea7\u522b\u7684\u8bbf\u95ee，\u6bcf\u4e2a\u5b57\u901a\u5e38\u4e3a16\u4f4d，\u80fd\u5b58\u50a8\u66f4\u590d\u6742\u7684\u6570\u636e，\u5982\u6e29\u5ea6\u503c\u6216\u8ba1\u6570\u5668\u3002IR\u597d\u6bd4\u56fe\u4e66\u9986\u7684\u53c2\u8003\u4e66\u533a\u2014\u2014\u53ea\u8bfb，\u5b58\u653e\u5b9e\u65f6\u6570\u636e\u5982\u4f20\u611f\u5668\u8bfb\u6570（\u4f8b\u5982，\u4ece\u6e29\u5ea6\u4f20\u611f\u5668\u8bfb\u53d6\u7684\u6570\u503c）\u3002HR\u5219\u50cf\u4e2a\u4eba\u7b14\u8bb0\u533a，\u65e2\u53ef\u8bfb\u4e5f\u53ef\u5199，\u7528\u4e8e\u5b58\u50a8\u914d\u7f6e\u53c2\u6570\u6216\u5386\u53f2\u6570\u636e，\u5982\u8bbe\u7f6e\u8bbe\u5907\u7684\u5de5\u4f5c\u6a21\u5f0f\u3002<\/p>\n

\u4e3a\u4e86\u66f4\u6e05\u6670\u5730\u533a\u5206\u8fd9\u4e9b\u6a21\u578b，\u4e0b\u8868\u603b\u7ed3\u4e86\u5b83\u4eec\u7684\u5173\u952e\u7279\u6027：<\/p>\n\n\u6570\u636e\u6a21\u578b\u8bbf\u95ee\u65b9\u5f0f\u8bfb\u5199\u6743\u9650\u6bd4\u55bb\u5178\u578b\u5e94\u7528<\/tr>\n\n\n\n\n\n
\u79bb\u6563\u91cf\u8f93\u5165 (DI)<\/td>\n\u4f4d(bit)<\/td>\n\u53ea\u8bfb<\/td>\n\u53ea\u8bfb\u6742\u5fd7\u533a<\/td>\n\u4f20\u611f\u5668\u72b6\u6001\u76d1\u63a7<\/td>\n<\/tr>\n
\u79bb\u6563\u91cf\u8f93\u51fa (DQ)<\/td>\n\u4f4d(bit)<\/td>\n\u8bfb\u5199<\/td>\n\u53ef\u501f\u9605\u56fe\u4e66\u533a<\/td>\n\u7ee7\u7535\u5668\u63a7\u5236<\/td>\n<\/tr>\n
\u8f93\u5165\u5bc4\u5b58\u5668 (IR)<\/td>\n\u5b57(WORD)<\/td>\n\u53ea\u8bfb<\/td>\n\u53c2\u8003\u4e66\u533a<\/td>\n\u5b9e\u65f6\u6570\u636e\u91c7\u96c6<\/td>\n<\/tr>\n
\u4fdd\u6301\u5bc4\u5b58\u5668 (HR)<\/td>\n\u5b57(WORD)<\/td>\n\u8bfb\u5199<\/td>\n\u4e2a\u4eba\u7b14\u8bb0\u533a<\/td>\n\u8bbe\u5907\u914d\u7f6e\u548c\u5b58\u50a8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd9\u4e9b\u6570\u636e\u6a21\u578b\u662f\u62bd\u8c61\u7684，\u610f\u5473\u7740\u5b83\u4eec\u5fc5\u987b\u6620\u5c04\u5230\u8bbe\u5907\u7684\u7269\u7406\u5b58\u50a8\u533a\u624d\u80fd\u4f7f\u7528\u3002\u5c31\u50cf\u56fe\u4e66\u9986\u7684\u4e66\u67b6\u9700\u8981\u5b9e\u9645\u6446\u653e\u4e66\u7c4d\u4e00\u6837，Modbus\u8bbe\u5907\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u5c06\u4e0d\u540c\u6a21\u578b\u6620\u5c04\u5230\u72ec\u7acb\u6216\u5171\u4eab\u7684\u5b58\u50a8\u533a\u5757\u3002\u4f8b\u5982，\u4e00\u4e2a\u8bbe\u5907\u53ef\u80fd\u5c06IR\u548cHR\u6620\u5c04\u5230\u540c\u4e00\u7269\u7406\u5185\u5b58，\u8fd9\u6837\u901a\u8fc7\u4e0d\u540c\u529f\u80fd\u7801（\u5982\u8bfbIR\u6216\u8bfbHR）\u8bbf\u95ee\u540c\u4e00\u5730\u5740\u65f6，\u53ef\u80fd\u5f97\u5230\u76f8\u540c\u7684\u6570\u636e\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u5141\u8bb8\u8bbe\u5907\u5236\u9020\u5546\u4f18\u5316\u8d44\u6e90\u4f7f\u7528，\u4f46\u4e5f\u9700\u8981\u5f00\u53d1\u8005\u5728\u7f16\u7a0b\u65f6\u6ce8\u610f\u6f5c\u5728\u7684\u91cd\u53e0\u95ee\u9898\u3002<\/p>\n

\u63d0\u793a：\u5728\u5b9e\u9645\u9879\u76ee\u4e2d，\u603b\u662f\u67e5\u9605\u8bbe\u5907\u6587\u6863\u4ee5\u786e\u8ba4\u6570\u636e\u6620\u5c04\u65b9\u5f0f\u3002\u5047\u8bbe\u9519\u8bef\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u51b2\u7a81，\u4f8b\u5982\u8bef\u5199\u53ea\u8bfb\u533a\u57df\u5f15\u53d1\u8bbe\u5907\u9519\u8bef\u3002<\/p>\n

2. \u5bc4\u5b58\u5668\u5bfb\u5740：\u56fe\u4e66\u9986\u7684\u7d22\u5f15\u7f16\u53f7\u7cfb\u7edf<\/h3>\n

\u5982\u679c\u6570\u636e\u6a21\u578b\u662f\u4e66\u67b6，\u90a3\u4e48\u5bfb\u5740\u7cfb\u7edf\u5c31\u662f\u56fe\u4e66\u9986\u7684\u7d22\u5f15\u7f16\u53f7\u2014\u2014\u5b83\u544a\u8bc9\u4f60\u5982\u4f55\u5feb\u901f\u627e\u5230\u7279\u5b9a\u4e66\u7c4d\u3002Modbus\u7684\u5730\u5740\u6a21\u578b\u901a\u8fc7\u6570\u5b57\u7f16\u53f7\u6765\u5b9a\u4f4d\u6bcf\u4e2a\u6570\u636e\u5143\u7d20，\u7c7b\u4f3c\u4e8e\u56fe\u4e66\u7684\u7d22\u4e66\u53f7\u3002\u4f46\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u952e\u70b9：Modbus\u5730\u5740\u4ece1\u5f00\u59cb\u7f16\u53f7，\u800c\u7f16\u7a0b\u65f6\u5e38\u7528\u4ece0\u5f00\u59cb\u7684\u7d22\u5f15，\u8fd9\u5e38\u5e38\u5bfc\u81f4\u6df7\u6dc6\u548c\u9519\u8bef\u3002<\/p>\n

Modbus\u4e3a\u6bcf\u79cd\u6570\u636e\u6a21\u578b\u5206\u914d\u4e86\u72ec\u7acb\u7684\u5730\u5740\u8303\u56f4，\u4f7f\u7528\u516d\u4f4d\u6570\u5b57\u8fdb\u884c\u6807\u8bc6：<\/p>\n

    \n
  • \u7ebf\u5708（DQ）：\u5730\u5740\u8303\u56f4\u4ece000001\u5230065536\u3002\u8fd9\u5c31\u50cf\u56fe\u4e66\u9986\u7684A\u533a\u56fe\u4e66，\u7f16\u53f7\u4eceA-000001\u5f00\u59cb\u3002<\/li>\n
  • \u79bb\u6563\u91cf\u8f93\u5165（DI）：\u5730\u5740\u8303\u56f4\u4ece100001\u5230165536\u3002\u76f8\u5f53\u4e8eB\u533a\u6742\u5fd7，\u7f16\u53f7\u4ee5100001\u8d77\u5934\u3002<\/li>\n
  • \u8f93\u5165\u5bc4\u5b58\u5668（IR）：\u5730\u5740\u8303\u56f4\u4ece300001\u5230365536\u3002\u7c7b\u4f3cC\u533a\u53c2\u8003\u4e66，\u7f16\u53f7\u4ece300001\u5f00\u59cb\u3002<\/li>\n
  • \u4fdd\u6301\u5bc4\u5b58\u5668（HR）：\u5730\u5740\u8303\u56f4\u4ece400001\u5230465536\u3002\u5c31\u50cfD\u533a\u7b14\u8bb0，\u7f16\u53f7\u4ee5400001\u4e3a\u8d77\u70b9\u3002<\/li>\n<\/ul>\n

    \u8fd9\u79cd\u7f16\u53f7\u7cfb\u7edf\u7684\u597d\u5904\u662f\u76f4\u89c2\u2014\u2014\u901a\u8fc7\u5730\u5740\u524d\u7f00\u5c31\u80fd\u5224\u65ad\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982，\u5730\u5740400101\u80af\u5b9a\u662f\u4fdd\u6301\u5bc4\u5b58\u5668，\u800c100005\u662f\u79bb\u6563\u91cf\u8f93\u5165\u3002\u7136\u800c，\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u8bbe\u5907\u5236\u9020\u5546\u5e38\u5e38\u7b80\u5316\u5730\u5740\u8868\u793a\u3002\u4f8b\u5982，\u5982\u679c\u5bc4\u5b58\u5668\u6570\u91cf\u8f83\u5c11，400001\u53ef\u80fd\u88ab\u7b80\u5199\u4e3a40001，\u7701\u53bb\u4e2d\u95f4\u7684\u96f6\u3002\u8fd9\u8981\u6c42\u5f00\u53d1\u8005\u5728\u89e3\u6790\u5730\u5740\u65f6\u6ce8\u610f\u8bbe\u5907\u6587\u6863\u7684\u7ea6\u5b9a，\u907f\u514d off-by-one \u9519\u8bef（\u5373\u5dee\u4e00\u9519\u8bef）\u3002<\/p>\n

    \u4e3a\u4e86\u517c\u5bb9\u7f16\u7a0b\u4e60\u60ef，Modbus\u4e5f\u652f\u6301\u4ece0\u5f00\u59cb\u7684\u5bfb\u5740\u65b9\u5f0f，\u901a\u5e38\u7528\u533a\u57df\u4ee3\u7801\u52a0\u504f\u79fb\u5730\u5740\u8868\u793a：<\/p>\n

      \n
    • DQ: \u5730\u57400~65535（\u5341\u516d\u8fdb\u5236 0x0000~0xFFFF）<\/li>\n
    • DI: \u5730\u57400~65535（\u5341\u516d\u8fdb\u5236 0x0000~0xFFFF）<\/li>\n
    • IR: \u5730\u57400~65535（\u5341\u516d\u8fdb\u5236 0x0000~0xFFFF）<\/li>\n
    • HR: \u5730\u57400~65535（\u5341\u516d\u8fdb\u5236 0x0000~0xFFFF）<\/li>\n<\/ul>\n

      \u8fd9\u79cd\u65b9\u5f0f\u5728\u8f6f\u4ef6\u4e2d\u66f4\u5e38\u89c1，\u56e0\u4e3a\u5b83\u76f4\u63a5\u5bf9\u5e94\u6570\u7ec4\u7d22\u5f15\u3002\u4f8b\u5982，\u5728Python\u4e2d\u4f7f\u7528Modbus\u5e93\u65f6，\u4f60\u53ef\u80fd\u7528address=0\u6765\u8bbf\u95ee\u7b2c\u4e00\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668，\u800c\u4e0d\u662f400001\u3002\u4e0b\u8868\u5bf9\u6bd4\u4e86\u4e24\u79cd\u5bfb\u5740\u65b9\u5f0f：<\/p>\n\n\u6570\u636e\u6a21\u578bModbus\u98ce\u683c\u5730\u5740（\u4ece1\u5f00\u59cb）\u7f16\u7a0b\u98ce\u683c\u5730\u5740（\u4ece0\u5f00\u59cb）\u5341\u516d\u8fdb\u5236\u8303\u56f4<\/tr>\n\n\n\n\n\n
      \u7ebf\u5708 (DQ)<\/td>\n000001~065536<\/td>\n0~65535<\/td>\n0x0000~0xFFFF<\/td>\n<\/tr>\n
      \u79bb\u6563\u91cf\u8f93\u5165 (DI)<\/td>\n100001~165536<\/td>\n0~65535<\/td>\n0x0000~0xFFFF<\/td>\n<\/tr>\n
      \u8f93\u5165\u5bc4\u5b58\u5668 (IR)<\/td>\n300001~365536<\/td>\n0~65535<\/td>\n0x0000~0xFFFF<\/td>\n<\/tr>\n
      \u4fdd\u6301\u5bc4\u5b58\u5668 (HR)<\/td>\n400001~465536<\/td>\n0~65535<\/td>\n0x0000~0xFFFF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u6ce8\u610f：\u5730\u5740\u8f6c\u6362\u662f\u5e38\u89c1\u7684\u9519\u8bef\u6e90\u3002\u59cb\u7ec8\u786e\u8ba4\u8bbe\u5907\u4f7f\u7528\u7684\u5bfb\u5740\u7ea6\u5b9a\u2014\u2014\u6709\u4e9b\u8bbe\u5907\u6587\u6863\u4f7f\u7528Modbus\u98ce\u683c\u5730\u5740，\u800c\u7f16\u7a0b\u5e93\u53ef\u80fd\u8981\u6c42\u7f16\u7a0b\u98ce\u683c\u5730\u5740\u3002\u4f8b\u5982，\u5982\u679c\u8bbe\u5907\u6307\u5b9a\u4fdd\u6301\u5bc4\u5b58\u5668\u5730\u5740\u4e3a40001，\u5728\u4ee3\u7801\u4e2d\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u5730\u57400\u6765\u8bbf\u95ee\u3002<\/p>\n

      3. \u529f\u80fd\u7801\u4e0e\u6570\u636e\u8bbf\u95ee：\u501f\u4e66\u548c\u8fd8\u4e66\u7684\u8fc7\u7a0b<\/h3>\n

      \u529f\u80fd\u7801\u662fModbus\u534f\u8bae\u4e2d\u7684\u201c\u52a8\u4f5c\u6307\u4ee4\u201d，\u5c31\u50cf\u56fe\u4e66\u9986\u7684\u501f\u4e66\u3001\u8fd8\u4e66\u6216\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u4eec\u5b9a\u4e49\u4e86\u5982\u4f55\u8bbf\u95ee\u6570\u636e\u6a21\u578b\u4e2d\u7684\u5143\u7d20，\u5305\u62ec\u8bfb\u3001\u5199\u548c\u7279\u5b9a\u7c7b\u578b\u7684\u64cd\u4f5c\u3002\u7406\u89e3\u529f\u80fd\u7801\u662f\u5b9e\u73b0\u6709\u6548\u901a\u4fe1\u7684\u5173\u952e，\u56e0\u4e3a\u5b83\u4eec\u51b3\u5b9a\u4e86\u6570\u636e\u4ea4\u6362\u7684\u89c4\u5219\u548c\u9650\u5236\u3002<\/p>\n

      Modbus\u652f\u6301\u591a\u79cd\u529f\u80fd\u7801，\u6bcf\u79cd\u5bf9\u5e94\u4e0d\u540c\u7684\u6570\u636e\u6a21\u578b\u548c\u64cd\u4f5c\u3002\u5e38\u89c1\u529f\u80fd\u7801\u5305\u62ec：<\/p>\n

        \n
      • \u8bfb\u7ebf\u5708（\u529f\u80fd\u780101）：\u8bfb\u53d6\u4e00\u4e2a\u6216\u591a\u4e2aDQ\u7684\u72b6\u6001\u3002\u7c7b\u4f3c\u4e8e\u4ece\u56fe\u4e66\u533a\u501f\u9605\u591a\u672c\u4e66\u2014\u2014\u4f60\u8bf7\u6c42\u83b7\u53d6\u5f53\u524d\u72b6\u6001（\u5982\u54ea\u4e9b\u7ee7\u7535\u5668\u5df2\u5f00\u542f）\u3002<\/li>\n
      • \u8bfb\u79bb\u6563\u8f93\u5165（\u529f\u80fd\u780102）：\u8bfb\u53d6\u4e00\u4e2a\u6216\u591a\u4e2aDI\u7684\u503c\u3002\u5c31\u50cf\u6d4f\u89c8\u6742\u5fd7\u533a，\u53ea\u80fd\u67e5\u770b\u4e0d\u80fd\u4fee\u6539\u3002<\/li>\n
      • \u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668（\u529f\u80fd\u780103）：\u8bfb\u53d6\u4e00\u4e2a\u6216\u591a\u4e2aHR\u7684\u503c\u3002\u76f8\u5f53\u4e8e\u4ece\u7b14\u8bb0\u533a\u590d\u5236\u5185\u5bb9\u3002<\/li>\n
      • \u5199\u5355\u4e2a\u7ebf\u5708（\u529f\u80fd\u780105）：\u8bbe\u7f6e\u5355\u4e2aDQ\u7684\u72b6\u6001\u3002\u7c7b\u4f3c\u5f52\u8fd8\u4e00\u672c\u4e66\u5e76\u66f4\u65b0\u5176\u72b6\u6001\u3002<\/li>\n
      • \u5199\u5355\u4e2a\u5bc4\u5b58\u5668（\u529f\u80fd\u780106）：\u8bbe\u7f6e\u5355\u4e2aHR\u7684\u503c\u3002\u5c31\u50cf\u5728\u7b14\u8bb0\u533a\u4fee\u6539\u4e00\u6761\u8bb0\u5f55\u3002<\/li>\n
      • \u5199\u591a\u4e2a\u5bc4\u5b58\u5668（\u529f\u80fd\u780116）：\u6279\u91cf\u8bbe\u7f6eHR\u7684\u503c\u3002\u76f8\u5f53\u4e8e\u66f4\u65b0\u591a\u6761\u7b14\u8bb0\u3002<\/li>\n<\/ul>\n

        \u8fd9\u4e9b\u529f\u80fd\u7801\u5141\u8bb8\u8bbe\u5907\u6839\u636e\u9700\u6c42\u9ad8\u6548\u8bbf\u95ee\u6570\u636e\u3002\u4f8b\u5982，\u4f7f\u7528\u529f\u80fd\u780103\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u65f6，\u4f60\u53ef\u4ee5\u6307\u5b9a\u8d77\u59cb\u5730\u5740\u548c\u6570\u91cf，\u4e00\u6b21\u6027\u83b7\u53d6\u591a\u4e2a\u503c，\u51cf\u5c11\u901a\u4fe1\u5f00\u9500\u3002\u8fd9\u5728\u91c7\u96c6\u4f20\u611f\u5668\u6570\u636e\u65f6\u975e\u5e38\u6709\u7528，\u5982\u4e00\u6b21\u6027\u8bfb\u53d6\u6e29\u5ea6\u3001\u538b\u529b\u548c\u6d41\u91cf\u503c\u3002<\/p>\n

        \u7136\u800c，\u529f\u80fd\u7801\u7684\u4f7f\u7528\u53d7\u6570\u636e\u6a21\u578b\u6743\u9650\u9650\u5236\u3002\u5c1d\u8bd5\u7528\u529f\u80fd\u780105\u5199\u5165\u79bb\u6563\u8f93\u5165（DI）\u4f1a\u5931\u8d25，\u56e0\u4e3aDI\u662f\u53ea\u8bfb\u7684\u2014\u2014\u5c31\u50cf\u8bd5\u56fe\u5728\u6742\u5fd7\u4e0a\u6d82\u6539，\u56fe\u4e66\u9986\u4e0d\u5141\u8bb8\u8fd9\u79cd\u64cd\u4f5c\u3002\u540c\u6837，\u529f\u80fd\u7801\u53ea\u80fd\u8bbf\u95ee\u5176\u5bf9\u5e94\u7684\u6570\u636e\u6a21\u578b：\u4e0d\u80fd\u7528\u91cf\u5b50\u5bc4\u5b58\u5668\u529f\u80fd\u7801\u8bfb\u53d6\u7ebf\u5708\u6570\u636e\u3002<\/p>\n

        \u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d，\u529f\u80fd\u7801\u901a\u5e38\u9690\u85cf\u5728\u5e93\u51fd\u6570\u540e，\u4f46\u4e86\u89e3\u5176\u539f\u7406\u6709\u52a9\u4e8e\u8c03\u8bd5\u3002\u4f8b\u5982，\u5982\u679c\u4f60\u9047\u5230\u201c\u975e\u6cd5\u529f\u80fd\u7801\u201d\u9519\u8bef，\u53ef\u80fd\u662f\u5c1d\u8bd5\u4e86\u4e0d\u652f\u6301\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Python\u793a\u4f8b，\u4f7f\u7528pymodbus\u5e93\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668：<\/p>\n

        from pymodbus.client import ModbusTcpClient<\/p>\n

        # \u8fde\u63a5\u5230Modbus-TCP\u8bbe\u5907
        \nclient = ModbusTcpClient('192.168.1.10', port=502)
        \nclient.connect()<\/p>\n

        # \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668（\u5730\u57400\u5f00\u59cb，\u5bf9\u5e94Modbus\u5730\u5740400001）
        \nresult = client.read_holding_registers(address=0, count=5, unit=1)<\/p>\n

        if not result.isError():
        \n print("\u5bc4\u5b58\u5668\u503c:", result.registers)
        \nelse:
        \n print("\u9519\u8bef:", result)
        \nclient.close()<\/p>\n

        \u8fd9\u6bb5\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4ece\u5730\u57400\u8bfb\u53d65\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u3002\u6ce8\u610f，address=0\u5bf9\u5e94\u7f16\u7a0b\u98ce\u683c\u5bfb\u5740，\u5b9e\u9645\u8bbe\u5907\u53ef\u80fd\u6587\u6863\u4e2d\u5199\u4e3a400001-400005\u3002\u5982\u679c\u8bbe\u5907\u4f7f\u7528Modbus\u98ce\u683c\u5730\u5740，\u4f60\u9700\u8981\u8f6c\u6362：\u4f8b\u5982，\u6587\u6863\u5730\u5740400101\u5bf9\u5e94\u7f16\u7a0b\u5730\u5740100\u3002<\/p>\n

        \u63d0\u793a：\u529f\u80fd\u7801\u9009\u62e9\u5f71\u54cd\u6027\u80fd\u3002\u6279\u91cf\u8bfb\u53d6（\u5982\u529f\u80fd\u780103\u8bfb\u591a\u4e2a\u5bc4\u5b58\u5668）\u6bd4\u591a\u6b21\u5355\u6b21\u8bfb\u53d6\u66f4\u9ad8\u6548，\u4f46\u9700\u5e73\u8861\u6570\u636e\u91cf\u548c\u7f51\u7edc\u7a33\u5b9a\u6027\u3002\u5728\u9ad8\u901f\u5e94\u7528\u4e2d，\u51cf\u5c11\u901a\u4fe1\u6b21\u6570\u53ef\u4ee5\u63d0\u5347\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n

        4. \u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e0e\u5e38\u89c1\u8bef\u533a<\/h3>\n

        \u638c\u63e1\u4e86\u6570\u636e\u6a21\u578b\u548c\u5bfb\u5740\u540e，\u8ba9\u6211\u4eec\u770b\u770bModbus\u5728\u771f\u5b9e\u4e16\u754c\u7684\u5e94\u7528，\u4ee5\u53ca\u521d\u5b66\u8005\u5e38\u8e29\u7684\u5751\u3002Modbus\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316，\u4ecePLC\u901a\u4fe1\u5230\u6570\u636e\u91c7\u96c6，\u4f46\u9519\u8bef\u914d\u7f6e\u53ef\u80fd\u5bfc\u81f4\u901a\u4fe1\u5931\u8d25\u6216\u6570\u636e\u9519\u8bef\u3002<\/p>\n

        \u5178\u578b\u5e94\u7528\u573a\u666f：<\/p>\n

          \n
        • \u6570\u636e\u91c7\u96c6\u5230\u6570\u636e\u5e93：\u901a\u8fc7Modbus\u534f\u8bae（\u5982Modbus-TCP）\u4ece\u4f20\u611f\u5668\u6216PLC\u8bfb\u53d6\u6570\u636e，\u5e76\u5b58\u50a8\u5230SQL\u6570\u636e\u5e93\u3002\u4f8b\u5982，\u4f7f\u7528Python\u811a\u672c\u5b9a\u671f\u8bfb\u53d6\u6e29\u5ea6\u5bc4\u5b58\u5668\u7684\u503c，\u7136\u540e\u63d2\u5165\u5230MySQL\u8868\u4e2d\u7528\u4e8e\u76d1\u63a7\u548c\u5206\u6790\u3002<\/li>\n
        • \u8bbe\u5907\u95f4\u901a\u4fe1：\u4e0d\u540c\u54c1\u724c\u7684PLC\u901a\u8fc7Modbus\u4e92\u901a，\u5982AB\u7f57\u514b\u97e6\u5c14PLC\u4f5c\u4e3a\u4e3b\u7ad9，\u8bfb\u53d6\u897f\u95e8\u5b50\u8bbe\u5907\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u3002\u8fd9\u9700\u8981\u914d\u7f6e\u6b63\u786e\u7684\u4ece\u7ad9\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6620\u5c04\u3002<\/li>\n
        • \u534f\u8bae\u8f6c\u6362：\u7f51\u5173\u8bbe\u5907\u5c06\u539f\u751f\u534f\u8bae（\u5982\u897f\u95e8\u5b50S7）\u8f6c\u6362\u4e3aModbus，\u5141\u8bb8\u65e7\u7cfb\u7edf\u96c6\u6210\u5230\u73b0\u4ee3\u7f51\u7edc\u4e2d\u3002\u4f8b\u5982，\u4f7f\u7528Modbus\u8f6c\u63a5\u5668\u8ba9\u975eModbus\u8bbe\u5907\u53c2\u4e0eModbus\u7f51\u7edc\u3002<\/li>\n<\/ul>\n

          \u5728\u8fd9\u4e9b\u573a\u666f\u4e2d，\u5e38\u89c1\u8bef\u533a\u5305\u62ec：<\/p>\n

            \n
          • \u5730\u5740\u504f\u79fb\u9519\u8bef：\u6df7\u6dc6\u4ece1\u5f00\u59cb\u548c\u4ece0\u5f00\u59cb\u7684\u5bfb\u5740\u3002\u4f8b\u5982，\u8bbe\u5907\u6587\u6863\u8bf4\u201c\u5730\u574040001\u201d，\u4f46\u4ee3\u7801\u4e2d\u7528\u4e86\u5730\u57401\u800c\u4e0d\u662f0\u3002\u8fd9\u4f1a\u5bfc\u81f4\u8bfb\u53d6\u9519\u8bef\u6570\u636e\u3002\u89e3\u51b3\u65b9\u6848\u662f\u4ed4\u7ec6\u68c0\u67e5\u6587\u6863，\u5e76\u4f7f\u7528\u5de5\u5177\u5982Modbus\u8c03\u8bd5\u5668\u9a8c\u8bc1\u5730\u5740\u3002<\/li>\n
          • \u6570\u636e\u7c7b\u578b\u8bef\u89e3：\u5bc4\u5b58\u5668\u5b58\u50a816\u4f4d\u6570\u636e，\u4f46\u5b9e\u9645\u503c\u53ef\u80fd\u662f\u6574\u6570\u3001\u6d6e\u70b9\u6570\u6216\u5b57\u7b26\u4e32\u3002\u4f8b\u5982，\u4e24\u4e2a\u5bc4\u5b58\u5668\u53ef\u80fd\u7ec4\u5408\u6210\u4e00\u4e2a32\u4f4d\u6d6e\u70b9\u6570\u3002\u5982\u679c\u4e0d\u6309\u8bbe\u5907\u7ea6\u5b9a\u89e3\u6790，\u4f1a\u5f97\u5230\u65e0\u610f\u4e49\u6570\u503c\u3002\u603b\u662f\u53c2\u8003\u8bbe\u5907\u624b\u518c\u7684\u6570\u636e\u683c\u5f0f\u3002<\/li>\n
          • \u901a\u4fe1\u8d85\u65f6\u548c\u91cd\u8bd5：\u5de5\u4e1a\u7f51\u7edc\u53ef\u80fd\u4e0d\u7a33\u5b9a，Modbus\u8bf7\u6c42\u8d85\u65f6\u662f\u5e38\u89c1\u95ee\u9898\u3002\u672a\u5b9e\u73b0\u91cd\u8bd5\u673a\u5236\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u91cd\u8bd5\u903b\u8f91\u548c\u8d85\u65f6\u5904\u7406\u662f best practice\u3002<\/li>\n
          • \u6743\u9650\u51b2\u7a81：\u5c1d\u8bd5\u5199\u5165\u53ea\u8bfb\u533a\u57df（\u5982\u7528\u529f\u80fd\u780106\u5199\u8f93\u5165\u5bc4\u5b58\u5668）\u4f1a\u8fd4\u56de\u5f02\u5e38\u3002\u786e\u4fdd\u5199\u64cd\u4f5c\u53ea\u9488\u5bf9\u7ebf\u5708\u548c\u4fdd\u6301\u5bc4\u5b58\u5668\u3002<\/li>\n<\/ul>\n

            \u4e3a\u4e86\u907f\u514d\u8fd9\u4e9b\u8bef\u533a，\u5728\u9879\u76ee\u5f00\u59cb\u65f6：<\/p>\n

          • \u8be6\u7ec6\u9605\u8bfb\u8bbe\u5907\u6587\u6863：\u786e\u8ba4\u6570\u636e\u6620\u5c04\u3001\u5730\u5740\u7ea6\u5b9a\u548c\u6570\u636e\u7c7b\u578b\u3002<\/li>\n
          • \u4f7f\u7528\u8c03\u8bd5\u5de5\u5177：\u5982Modbus Poll\u6216\u7b80\u5355\u811a\u672c，\u6d4b\u8bd5\u901a\u4fe1 before \u96c6\u6210\u3002<\/li>\n
          • \u5b9e\u73b0\u9519\u8bef\u5904\u7406：\u4ee3\u7801\u4e2d\u68c0\u67e5Modbus\u5f02\u5e38\u54cd\u5e94，\u5e76\u8bb0\u5f55\u9519\u8bef\u8be6\u60c5\u3002<\/li>\n
          • \u6d4b\u8bd5\u8fb9\u754c\u60c5\u51b5：\u5982\u5730\u5740\u8d8a\u754c\u6216\u7f51\u7edc\u4e2d\u65ad，\u786e\u4fdd\u7cfb\u7edf\u5065\u58ee\u6027\u3002<\/li>\n

            Modbus-RTU\u548cModbus-TCP\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\u5171\u4eab\u76f8\u540c\u6570\u636e\u6a21\u578b，\u4f46\u4f20\u8f93\u65b9\u5f0f\u4e0d\u540c：RTU\u4f7f\u7528\u4e32\u53e3（\u5982RS-485），\u9002\u5408\u77ed\u8ddd\u79bb\u4f4e\u901f\u7f51\u7edc；TCP\u57fa\u4e8e\u4ee5\u592a\u7f51，\u652f\u6301\u8fdc\u7a0b\u8bbf\u95ee\u548c\u66f4\u9ad8\u901f\u5ea6\u3002\u9009\u62e9\u534f\u8bae\u53d6\u51b3\u4e8e\u7f51\u7edc\u73af\u5883\u548c\u8bbe\u5907\u652f\u6301\u3002<\/p>\n

            5. \u4ece\u7406\u8bba\u5230\u5b9e\u8df5：\u642d\u5efa\u4e00\u4e2a\u7b80\u5355\u7684Modbus\u6d4b\u8bd5\u73af\u5883<\/h3>\n

            \u7406\u8bba\u518d\u597d，\u4e0d\u5982\u52a8\u624b\u4e00\u8bd5\u3002\u642d\u5efa\u4e00\u4e2a\u672c\u5730\u6d4b\u8bd5\u73af\u5883\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5de9\u56fa\u7406\u89e3，\u5e76\u5feb\u901f\u8c03\u8bd5Modbus\u5e94\u7528\u3002\u8fd9\u91cc，\u6211\u4eec\u5c06\u7528\u8f6f\u4ef6\u6a21\u62dfModbus\u8bbe\u5907，\u5e76\u7f16\u5199\u7b80\u5355\u4ee3\u7801\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u50cf\u5728\u56fe\u4e66\u9986\u5b9e\u4e60\u2014\u2014\u4eb2\u81ea\u6574\u7406\u4e66\u67b6，\u52a0\u6df1\u5bf9\u7d22\u5f15\u7cfb\u7edf\u7684\u7406\u89e3\u3002<\/p>\n

            \u73af\u5883\u51c6\u5907：
            \n\u9996\u5148，\u4f60\u9700\u8981\u4e00\u4e2aModbus\u4ece\u7ad9\u6a21\u62df\u5668\u548c\u4e00\u4e2a\u7f16\u7a0b\u5e93\u3002\u63a8\u8350\u4ee5\u4e0b\u5de5\u5177：<\/p>\n

              \n
            • Modbus\u4ece\u7ad9\u6a21\u62df\u5668：\u5982qModMaster\u6216Modbus Slave（Windows），\u6216Linux\u4e0b\u7684mbpoll\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u865a\u62dfModbus\u8bbe\u5907，\u8ba9\u4f60\u8bbe\u7f6e\u5bc4\u5b58\u5668\u548c\u7ebf\u5708\u503c\u3002<\/li>\n
            • \u7f16\u7a0b\u8bed\u8a00\u548c\u5e93：Python\u4e0epymodbus\u5e93\u662f\u4e0d\u9519\u7684\u9009\u62e9，\u7b80\u5355\u6613\u7528\u4e14\u8de8\u5e73\u53f0\u3002\u5b89\u88c5\u547d\u4ee4：pip install pymodbus\u3002<\/li>\n
            • \u7f51\u7edc\u8bbe\u7f6e：\u5982\u679c\u4f7f\u7528Modbus-TCP，\u786e\u4fdd\u6a21\u62df\u5668\u548c\u4ee3\u7801\u5728\u540c\u4e00\u7f51\u7edc\u6216\u672c\u5730\u4e3b\u673a\u3002<\/li>\n<\/ul>\n

              \u6b65\u9aa4\u793a\u4f8b：\u6a21\u62df\u4fdd\u6301\u5bc4\u5b58\u5668\u8bbf\u95ee<\/p>\n

            • \u542f\u52a8\u6a21\u62df\u5668：\u914d\u7f6e\u4e00\u4e2aModbus-TCP\u4ece\u7ad9，\u76d1\u542c\u7aef\u53e3502\u3002\u8bbe\u7f6e\u4e00\u4e9b\u4fdd\u6301\u5bc4\u5b58\u5668\u503c，\u4f8b\u5982\u5730\u57400（400001）\u8bbe\u7f6e\u4e3a100，\u5730\u57401（400002）\u8bbe\u7f6e\u4e3a200\u3002<\/li>\n
            • \u7f16\u5199\u8bfb\u53d6\u4ee3\u7801：\u4f7f\u7528Python\u811a\u672c\u8fde\u63a5\u6a21\u62df\u5668\u5e76\u8bfb\u53d6\u503c\u3002\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6f14\u793a\u4e86\u57fa\u672c\u64cd\u4f5c：<\/li>\n

              from pymodbus.client import ModbusTcpClient<\/p>\n

              def test_modbus_reading():
              \n client = ModbusTcpClient('127.0.0.1', port=502)
              \n try:
              \n client.connect()
              \n # \u8bfb\u53d6\u4e24\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668（\u5730\u57400\u548c1）
              \n response = client.read_holding_registers(address=0, count=2, unit=1)
              \n if response.isError():
              \n print("Modbus\u9519\u8bef:", response)
              \n else:
              \n print(f"\u5bc4\u5b58\u5668\u503c: {response.registers}") # \u5e94\u8f93\u51fa [100, 200]
              \n except Exception as e:
              \n print(f"\u901a\u4fe1\u5f02\u5e38: {e}")
              \n finally:
              \n client.close()<\/p>\n

              if __name__ == "__main__":
              \n test_modbus_reading()<\/p>\n

            • \u6d4b\u8bd5\u5199\u5165\u64cd\u4f5c：\u5c1d\u8bd5\u7528\u529f\u80fd\u780106\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u3002\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5：<\/li>\n

              # \u5199\u5165\u5730\u57400\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u4e3a\u65b0\u503c150
              \nwrite_response = client.write_register(address=0, value=150, unit=1)
              \nif not write_response.isError():
              \n print("\u5199\u5165\u6210\u529f")
              \n # \u9a8c\u8bc1\u8bfb\u53d6\u65b0\u503c
              \n new_response = client.read_holding_registers(address=0, count=1, unit=1)
              \n print(f"\u65b0\u503c: {new_response.registers}")<\/p>\n

            • \u8c03\u8bd5\u5e38\u89c1\u95ee\u9898：\u5982\u679c\u9047\u5230\u8fde\u63a5\u5931\u8d25，\u68c0\u67e5\u6a21\u62df\u5668\u662f\u5426\u8fd0\u884c；\u5982\u679c\u5730\u5740\u9519\u8bef，\u8c03\u6574\u5bfb\u5740\u504f\u79fb\u3002\u4f7f\u7528\u6a21\u62df\u5668\u7684\u65e5\u5fd7\u529f\u80fd\u67e5\u770b\u8bf7\u6c42\u7ec6\u8282\u3002<\/li>\n

              \u8fd9\u4e2a\u6d4b\u8bd5\u73af\u5883\u8ba9\u4f60\u5b89\u5168\u5730\u5b9e\u9a8c\u5404\u79cd\u573a\u666f，\u5982\u9519\u8bef\u5904\u7406\u3001\u6279\u91cf\u8bfb\u5199\u548c\u6570\u636e\u7c7b\u578b\u89e3\u6790\u3002\u4f8b\u5982，\u5c1d\u8bd5\u8bfb\u53d6\u4e0d\u5b58\u5728\u7684\u5730\u5740（\u5982\u5730\u574070000），\u89c2\u5bdf\u5f02\u5e38\u54cd\u5e94，\u4ece\u800c\u5b66\u4e60\u5982\u4f55\u5728\u5b9e\u9645\u4ee3\u7801\u4e2d\u5904\u7406\u8d8a\u754c\u9519\u8bef\u3002<\/p>\n

              \u6ce8\u610f：\u5728\u6a21\u62df\u73af\u5883\u4e2d\u6d4b\u8bd5\u6240\u6709\u64cd\u4f5c\u540e\u518d\u90e8\u7f72\u5230\u771f\u5b9e\u8bbe\u5907\u3002\u771f\u5b9e\u8bbe\u5907\u53ef\u80fd\u6709\u4e0d\u54cd\u5e94\u6216\u5ef6\u8fdf，\u6dfb\u52a0\u8d85\u65f6\u8bbe\u7f6e（\u5982client.timeout = 5）\u4ee5\u907f\u514d\u963b\u585e\u3002<\/p>\n

              \u901a\u8fc7\u8fd9\u4e2a\u5b9e\u8df5\u8fc7\u7a0b，\u4f60\u5c06\u4e0d\u4ec5\u7406\u89e3Modbus\u673a\u5236，\u8fd8\u80fd\u57f9\u517b\u8c03\u8bd5\u6280\u80fd\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d，\u8bb8\u591a\u95ee\u9898\u6e90\u4e8e\u7b80\u5355\u914d\u7f6e\u9519\u8bef，\u4eb2\u624b\u64cd\u4f5c\u80fd\u5e2e\u4f60\u5feb\u901f\u5b9a\u4f4d\u89e3\u51b3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

              \u4ece\u96f6\u5f00\u59cb：\u7528\u751f\u6d3b\u5316\u6bd4\u55bb\u62c6\u89e3Modbus\u6570\u636e\u6a21\u578b\u4e0e\u5bc4\u5b58\u5668\u5bfb\u5740
              \n\u60f3\u8c61\u4e00\u4e0b，\u4f60\u7b2c\u4e00\u6b21\u8d70\u8fdb\u4e00\u4e2a\u5de8\u5927\u7684\u56fe\u4e66\u9986，\u4e66\u67b6\u4e0a\u6446\u6ee1\u4e86\u5404\u79cd\u4e66\u7c4d\u548c\u6742\u5fd7，\u4f46\u6ca1\u6709\u4efb\u4f55\u6807\u8bc6\u3002\u4f60\u53ef\u80fd\u4f1a\u611f\u5230\u8ff7\u832b，\u4e0d\u77e5\u9053\u4ece\u54ea\u91cc\u5f00\u59cb\u5bfb\u627e\u4f60\u9700\u8981\u7684\u4fe1\u606f\u3002\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u7684Modbus\u534f\u8bae\u5bf9\u521d\u5b66\u8005\u6765\u8bf4，\u5c31\u50cf\u8fd9\u6837\u4e00\u4e2a\u770b\u4f3c\u590d\u6742\u4f46\u5b9e\u5219\u6709\u5e8f\u7684\u7cfb\u7edf\u3002Modbus\u534f\u8bae\u4f5c\u4e3a\u5de5\u4e1a\u901a\u4fe1\u7684\u57fa\u77f3，\u5176\u6570\u636e\u6a21\u578b\u548c\u5bc4\u5b58\u5668\u5bfb\u5740\u673a\u5236\u5e38\u5e38\u8ba9\u65b0\u624b\u671b\u800c\u751f\u754f\u3002\u4f46\u522b\u62c5\u5fc3&#xff0<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[8323,8324,5292,1008],"topic":[],"class_list":["post-76764","post","type-post","status-publish","format-standard","hentry","category-server","tag-8323","tag-8324","tag-modbus","tag-1008"],"yoast_head":"\n\u4ece\u96f6\u5f00\u59cb\uff1a\u7528\u751f\u6d3b\u5316\u6bd4\u55bb\u62c6\u89e3Modbus\u6570\u636e\u6a21\u578b\u4e0e\u5bc4\u5b58\u5668\u5bfb\u5740 - 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