{"id":41164,"date":"2025-05-31T12:40:52","date_gmt":"2025-05-31T04:40:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/41164.html"},"modified":"2025-05-31T12:40:52","modified_gmt":"2025-05-31T04:40:52","slug":"%e8%a5%bf%e9%97%a8%e5%ad%90s7-200smart-modbus-tcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8c%87%e4%bb%a4%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/41164.html","title":{"rendered":"\u897f\u95e8\u5b50S7-200SMART Modbus TCP\u670d\u52a1\u5668\u6307\u4ee4\u6df1\u5ea6\u89e3\u6790"},"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\/05\/20250531044051-683a88536259b.gif\" style=\"width:16px;margin-left:4px;vertical-align:text-bottom;cursor:text\" \/> <\/p>\n<p> \u7b80\u4ecb&#xff1a;\u672c\u6587\u6df1\u5165\u8bb2\u89e3\u4e86\u897f\u95e8\u5b50S7-200SMART PLC\u5982\u4f55\u5b9e\u73b0Modbus TCP\u670d\u52a1\u5668\u529f\u80fd&#xff0c;\u5305\u62ecModbus\u529f\u80fd\u7801\u4f7f\u7528\u3001\u670d\u52a1\u5668\u7aef\u53e3\u914d\u7f6e\u3001\u6570\u636e\u6620\u5c04\u4ee5\u53ca\u6307\u4ee4\u7cfb\u7edf\u7684\u5e94\u7528\u3002\u901a\u8fc7STEP 7 Micro\/WIN SMART\u7f16\u7a0b\u8f6f\u4ef6&#xff0c;\u8bfb\u8005\u5c06\u5b66\u4e60\u5982\u4f55\u5904\u7406Modbus TCP\u8bf7\u6c42\u3001\u6784\u5efa\u670d\u52a1\u5668\u903b\u8f91&#xff0c;\u5e76\u8fdb\u884c\u9519\u8bef\u5904\u7406\u3002\u638c\u63e1\u8fd9\u4e9b\u77e5\u8bc6\u6709\u52a9\u4e8e\u5b9e\u73b0PLC\u4e0e\u5176\u4ed6\u8bbe\u5907\u4e4b\u95f4\u7684\u65e0\u7f1d\u901a\u4fe1&#xff0c;\u63a8\u8fdb\u5de5\u5382\u81ea\u52a8\u5316\u53d1\u5c55\u3002 <img decoding=\"async\" alt=\"S7-200SMARTModbusTCP\u670d\u52a1\u5668\u6307\u4ee4.rar\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250531044051-683a885370567.png\" \/> <\/p>\n<h2> 1. S7-200SMART\u7cfb\u5217PLC\u4e0eModbus TCP\u901a\u4fe1\u6982\u8ff0 <\/h2>\n<p> \u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df&#xff0c;PLC&#xff08;\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668&#xff09;\u4f5c\u4e3a\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00&#xff0c;\u627f\u62c5\u7740\u6570\u636e\u5904\u7406\u548c\u8bbe\u5907\u63a7\u5236\u7684\u91cd\u4efb\u3002S7-200 SMART\u7cfb\u5217PLC\u662f\u897f\u95e8\u5b50\u63a8\u51fa\u7684\u4e00\u6b3e\u4e2d\u5c0f\u578b\u63a7\u5236\u5668&#xff0c;\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u81ea\u52a8\u5316\u63a7\u5236\u7cfb\u7edf\u3002\u968f\u7740\u7f51\u7edc\u901a\u4fe1\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55&#xff0c;Modbus\u534f\u8bae\u4f5c\u4e3a\u4e00\u79cd\u5f00\u653e\u3001\u6807\u51c6\u7684\u901a\u4fe1\u534f\u8bae&#xff0c;\u5176\u5728\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u53d8\u5f97\u8d8a\u6765\u8d8a\u666e\u904d\u3002\u901a\u8fc7Modbus TCP\u534f\u8bae&#xff0c;S7-200 SMART\u7cfb\u5217PLC\u80fd\u591f\u8f7b\u677e\u5b9e\u73b0\u4e0e\u5176\u4ed6Modbus\u8bbe\u5907\u7684\u7f51\u7edc\u901a\u4fe1&#xff0c;\u4ece\u800c\u589e\u5f3a\u4e86\u7cfb\u7edf\u7684\u96c6\u6210\u5ea6\u548c\u7075\u6d3b\u6027\u3002 <\/p>\n<p> Modbus TCP\u4f5c\u4e3aModbus\u534f\u8bae\u7684\u7f51\u7edc\u7248\u672c&#xff0c;\u652f\u6301\u6807\u51c6\u7684TCP\/IP\u534f\u8bae\u6808&#xff0c;\u4f7f\u5f97\u5728\u4ee5\u592a\u7f51\u4e0a\u8fdb\u884c\u8fdc\u7a0b\u901a\u4fe1\u6210\u4e3a\u53ef\u80fd\u3002\u672c\u7ae0\u5c06\u9996\u5148\u6982\u8ff0S7-200 SMART\u7cfb\u5217PLC\u4e0eModbus TCP\u901a\u4fe1\u7684\u57fa\u672c\u6982\u5ff5\u548c\u4f18\u52bf&#xff0c;\u4e3a\u540e\u7eed\u7ae0\u8282\u4e2d\u6df1\u5165\u7684\u6280\u672f\u7ec6\u8282\u548c\u5e94\u7528\u6848\u4f8b\u6253\u4e0b\u57fa\u7840\u3002 <\/p>\n<h2> 2. \u6df1\u5165\u7406\u89e3Modbus\u529f\u80fd\u7801\u53ca\u5176\u5728S7-200SMART\u4e2d\u7684\u5e94\u7528 <\/h2>\n<h4> 2.1 Modbus\u529f\u80fd\u7801\u57fa\u7840 <\/h4>\n<h5> 2.1.1 \u529f\u80fd\u7801\u7684\u5b9a\u4e49\u4e0e\u5206\u7c7b <\/h5>\n<p> Modbus\u534f\u8bae\u4e2d\u7684\u529f\u80fd\u7801&#xff08;Function Code&#xff09;\u662f\u4e00\u7ec4\u7528\u4e8e\u5b9a\u4e49\u6307\u4ee4\u64cd\u4f5c\u7684\u6570\u5b57\u4ee3\u7801\u3002\u6bcf\u4e2a\u529f\u80fd\u7801\u5bf9\u5e94\u4e00\u79cd\u7279\u5b9a\u7684\u6570\u636e\u8bbf\u95ee\u6216\u63a7\u5236\u4efb\u52a1&#xff0c;\u4f7f\u5f97\u4e3b\u7ad9\u53ef\u4ee5\u5bf9\u4ece\u7ad9\u8bbe\u5907\u6267\u884c\u8bfb\u53d6\u3001\u5199\u5165\u6216\u5176\u4ed6\u7279\u5b9a\u529f\u80fd\u7684\u64cd\u4f5c\u3002 <\/p>\n<p> \u5728Modbus\u534f\u8bae\u4e2d&#xff0c;\u529f\u80fd\u7801\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u7c7b\u522b&#xff1a; &#8211; \u8bfb\u53d6\u7ebf\u5708\u72b6\u6001&#xff08;\u59820x01\u529f\u80fd\u7801&#xff09; &#8211; \u8bfb\u53d6\u79bb\u6563\u8f93\u5165\u72b6\u6001&#xff08;\u59820x02\u529f\u80fd\u7801&#xff09; &#8211; \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668&#xff08;\u59820x03\u529f\u80fd\u7801&#xff09; &#8211; \u8bfb\u53d6\u8f93\u5165\u5bc4\u5b58\u5668&#xff08;\u59820x04\u529f\u80fd\u7801&#xff09; &#8211; \u5199\u5165\u5355\u4e2a\u7ebf\u5708&#xff08;\u59820x05\u529f\u80fd\u7801&#xff09; &#8211; \u5199\u5165\u5355\u4e2a\u5bc4\u5b58\u5668&#xff08;\u59820x06\u529f\u80fd\u7801&#xff09; &#8211; \u5199\u5165\u591a\u4e2a\u7ebf\u5708&#xff08;\u59820x0F\u529f\u80fd\u7801&#xff09; &#8211; \u5199\u5165\u591a\u4e2a\u5bc4\u5b58\u5668&#xff08;\u59820x10\u529f\u80fd\u7801&#xff09; <\/p>\n<h5> 2.1.2 \u529f\u80fd\u7801\u5728S7-200SMART\u4e2d\u7684\u5b9e\u73b0\u539f\u7406 <\/h5>\n<p> \u5728S7-200SMART PLC\u4e2d\u5b9e\u73b0Modbus\u529f\u80fd\u7801&#xff0c;\u901a\u5e38\u9700\u8981\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4&#xff1a; <\/p>\n<li>\n<p>  \u914d\u7f6ePLC\u4e3aModbus\u4ece\u7ad9  &#xff1a;\u9996\u5148\u5728STEP 7 Micro\/WIN SMART\u7f16\u7a0b\u8f6f\u4ef6\u4e2d\u914d\u7f6ePLC\u7684\u901a\u4fe1\u53c2\u6570&#xff0c;\u4f7f\u5176\u652f\u6301Modbus\u534f\u8bae\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u6620\u5c04\u6570\u636e\u5730\u5740  &#xff1a;\u5c06PLC\u5185\u90e8\u7684\u8f93\u5165\/\u8f93\u51fa\u5730\u5740\u6620\u5c04\u5230Modbus\u534f\u8bae\u4e2d\u89c4\u5b9a\u7684\u5730\u5740\u8303\u56f4\u3002 <\/p>\n<\/li>\n<li>\n<p>  \u5b9e\u73b0\u529f\u80fd\u7801\u54cd\u5e94  &#xff1a;\u7f16\u5199\u76f8\u5e94\u7684\u7a0b\u5e8f\u6765\u54cd\u5e94\u5404\u79cd\u529f\u80fd\u7801\u3002\u4f8b\u5982&#xff0c;\u6839\u636e\u529f\u80fd\u78010x03&#xff08;\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668&#xff09;\u7684\u8981\u6c42&#xff0c;PLC\u9700\u8981\u4ece\u6307\u5b9a\u7684\u5bc4\u5b58\u5668\u5730\u5740\u4e2d\u8bfb\u53d6\u6570\u636e\u5e76\u8fd4\u56de\u7ed9Modbus\u4e3b\u7ad9\u3002 <\/p>\n<\/li>\n<h4> 2.2 Modbus\u529f\u80fd\u7801\u5728S7-200SMART\u7684\u5177\u4f53\u5e94\u7528 <\/h4>\n<h5> 2.2.1 \u8bfb\u5199\u529f\u80fd\u7801\u7684\u5e94\u7528\u573a\u666f\u5206\u6790 <\/h5>\n<p> \u8bfb\u5199\u529f\u80fd\u7801\u662fModbus\u534f\u8bae\u4e2d\u6700\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u3002\u5728S7-200SMART PLC\u4e2d&#xff0c;\u8bfb\u53d6\u5bc4\u5b58\u5668\u6570\u636e&#xff08;\u5982\u529f\u80fd\u78010x03&#xff09;\u53ef\u4ee5\u7528\u4e8e\u76d1\u63a7PLC\u5185\u90e8\u72b6\u6001\u6216\u5b9e\u65f6\u6570\u636e\u3002\u5199\u5165\u5bc4\u5b58\u5668\u6570\u636e&#xff08;\u5982\u529f\u80fd\u78010x06&#xff09;\u53ef\u7528\u4e8e\u63a7\u5236\u6216\u66f4\u6539PLC\u4e2d\u7684\u67d0\u4e9b\u53c2\u6570\u3002 <\/p>\n<p> \u5e94\u7528\u573a\u666f\u4e3e\u4f8b&#xff1a; &#8211; \u4f7f\u7528\u529f\u80fd\u78010x03\u8bfb\u53d6\u6e29\u5ea6\u4f20\u611f\u5668\u6570\u636e\u3002 &#8211; \u4f7f\u7528\u529f\u80fd\u78010x06\u8bbe\u7f6e\u53d8\u9891\u5668\u7684\u8fd0\u884c\u9891\u7387\u3002 <\/p>\n<h5> 2.2.2 \u5f02\u5e38\u529f\u80fd\u7801\u7684\u8bca\u65ad\u4e0e\u5904\u7406 <\/h5>\n<p> \u5728\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u4f1a\u9047\u5230\u5f02\u5e38\u529f\u80fd\u7801\u7684\u60c5\u51b5&#xff0c;\u6bd4\u5982\u8bf7\u6c42\u7684\u529f\u80fd\u7801\u4e0d\u88ab\u652f\u6301\u6216\u8005\u8bf7\u6c42\u7684\u6570\u636e\u683c\u5f0f\u9519\u8bef\u7b49\u3002S7-200SMART PLC\u9700\u8981\u80fd\u591f\u8bca\u65ad\u8fd9\u4e9b\u5f02\u5e38\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u9519\u8bef\u54cd\u5e94\u3002 <\/p>\n<p> \u5f02\u5e38\u8bca\u65ad\u5904\u7406\u7b56\u7565&#xff1a; &#8211; \u5bf9\u4e8e\u4e0d\u652f\u6301\u7684\u529f\u80fd\u7801&#xff0c;PLC\u5e94\u8fd4\u56de\u5f02\u5e38\u54cd\u5e94\u78010x01&#xff0c;\u8868\u793a\u975e\u6cd5\u529f\u80fd\u7801\u3002 &#8211; \u5bf9\u4e8e\u8bf7\u6c42\u7684\u6570\u636e\u683c\u5f0f\u9519\u8bef&#xff0c;\u5e94\u8fd4\u56de\u5f02\u5e38\u54cd\u5e94\u78010x03&#xff0c;\u8868\u793a\u975e\u6cd5\u6570\u636e\u5730\u5740\u3002 <\/p>\n<p>| \u529f\u80fd\u7801 | \u63cf\u8ff0                       |<br \/>\n|&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-|<br \/>\n| 0x01   | \u975e\u6cd5\u529f\u80fd\u7801                 |<br \/>\n| 0x02   | \u975e\u6cd5\u6570\u636e\u5730\u5740               |<br \/>\n| 0x03   | \u975e\u6cd5\u6570\u636e\u503c                 |<br \/>\n| 0x04   | \u4e0d\u6267\u884c\u7684\u8bf7\u6c42               |<br \/>\n| &#8230;    | &#8230;                        |<\/p>\n<p> \u5177\u4f53\u5b9e\u73b0\u65b9\u6cd5&#xff1a; \u5728STEP 7 Micro\/WIN SMART\u7f16\u7a0b\u8f6f\u4ef6\u4e2d&#xff0c;PLC\u7a0b\u5e8f\u5458\u9700\u8981\u7f16\u5199\u5bf9\u5e94\u7684\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f&#xff0c;\u5f53\u63a5\u6536\u5230\u975e\u6cd5\u8bf7\u6c42\u65f6&#xff0c;PLC\u4f1a\u8fd4\u56de\u76f8\u5e94\u7684\u5f02\u5e38\u54cd\u5e94\u7801\u3002 <\/p>\n<h4> 2.2.3 \u4ee3\u7801\u793a\u4f8b\u4e0e\u5206\u6790 <\/h4>\n<p>\/\/ \u793a\u4f8b&#xff1a;\u4f7f\u7528\u529f\u80fd\u78010x03\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u6570\u636e<br \/>\n\/\/ PLC\u4ee3\u7801\u5757\u793a\u4f8b<br \/>\n\/\/ \u5047\u8bbe\u8981\u8bfb\u53d6\u7684\u5bc4\u5b58\u5668\u5730\u5740\u4e3aDB1.DBW0&#xff0c;\u957f\u5ea6\u4e3a2\u5b57<br \/>\nL DB1.DBW0<br \/>\nT MW0<\/p>\n<p>\/\/ \u5bf9\u5e94\u7684Modbus\u5e27\u7ed3\u6784<br \/>\n| \u5730\u5740 | \u529f\u80fd\u7801 | \u8d77\u59cb\u5730\u5740 | \u5bc4\u5b58\u5668\u6570\u91cf | CRC\u6821\u9a8c |<br \/>\n|&#8212;&#8212;|&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;-|&#8212;&#8212;&#8212;&#8212;|&#8212;&#8212;&#8212;|<br \/>\n| 01   | 03     | 00 00    | 00 02      | 0xXX YY |<\/p>\n<p> \u5728\u4e0a\u8ff0\u4ee3\u7801\u5757\u4e2d&#xff0c;PLC\u6267\u884c\u7684\u662f\u8bfb\u53d6DB1.DBW0\u4e2d\u76842\u5b57&#xff08;\u4e00\u4e2a\u5b57&#061;16\u4f4d&#xff09;\u6570\u636e&#xff0c;\u5e76\u5c06\u5176\u5b58\u50a8\u5728MW0\u4e2d\u3002\u6b64\u64cd\u4f5c\u5bf9\u5e94\u4e8eModbus\u5e27\u4e2d\u7684\u529f\u80fd\u78010x03\u3002\u5730\u5740&#034;01&#034;\u8868\u793aModbus\u4ece\u7ad9\u5730\u5740&#xff0c;&#034;00 00&#034;\u662f\u5bc4\u5b58\u5668\u7684\u8d77\u59cb\u5730\u5740&#xff0c;&#034;00 02&#034;\u8868\u793a\u8981\u8bfb\u53d6\u7684\u5bc4\u5b58\u5668\u6570\u91cf\u3002 <\/p>\n<p> CRC\u6821\u9a8c&#xff08;\u5faa\u73af\u5197\u4f59\u6821\u9a8c&#xff09;\u7528\u4e8e\u9a8c\u8bc1\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u7684\u6570\u636e\u5b8c\u6574\u6027\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u9700\u8981\u8ba1\u7b97\u51fa\u6b63\u786e\u7684CRC\u503c\u5e76\u586b\u5165\u5e27\u7ed3\u6784\u4e2d\u7684\u76f8\u5e94\u4f4d\u7f6e\u3002 <\/p>\n<p> \u4ee5\u4e0a\u662f\u5173\u4e8eModbus\u529f\u80fd\u7801\u5728S7-200SMART\u4e2d\u7684\u57fa\u7840\u5e94\u7528\u548c\u5177\u4f53\u5b9e\u73b0\u7684\u4ecb\u7ecd\u3002\u63a5\u4e0b\u6765&#xff0c;\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u914d\u7f6e\u548c\u5b9e\u73b0S7-200SMART Modbus TCP\u670d\u52a1\u5668\u3002 <\/p>\n<h2> 3. S7-200SMART Modbus TCP\u670d\u52a1\u5668\u7684\u914d\u7f6e\u4e0e\u5b9e\u73b0 <\/h2>\n<h3> 3.1 Modbus TCP\u670d\u52a1\u5668\u7aef\u53e3\u914d\u7f6e <\/h3>\n<h4> 3.1.1 \u7aef\u53e3\u914d\u7f6e\u7684\u6b65\u9aa4\u4e0e\u65b9\u6cd5 <\/h4>\n<p> \u5728S7-200SMART PLC\u4e2d\u8bbe\u7f6eModbus TCP\u670d\u52a1\u5668\u529f\u80fd&#xff0c;\u9996\u8981\u6b65\u9aa4\u662f\u786e\u4fddModbus TCP\u7aef\u53e3\u5df2\u88ab\u6b63\u786e\u914d\u7f6e\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;Modbus TCP\u4f7f\u7528\u7aef\u53e3502&#xff0c;\u4f46\u7528\u6237\u53ef\u6839\u636e\u9700\u8981\u8fdb\u884c\u4fee\u6539\u3002\u901a\u8fc7\u914d\u7f6e\u6b65\u9aa4&#xff0c;\u53ef\u4ee5\u5b9e\u73b0\u4e0e\u591a\u79cd\u8bbe\u5907\u7684\u65e0\u7f1d\u901a\u4fe1\u3002 <\/p>\n<p> \u9996\u5148&#xff0c;\u767b\u5f55\u5230S7-200SMART PLC\u7684\u7ba1\u7406\u8f6f\u4ef6&#xff0c;\u6bd4\u5982STEP 7 Micro\/WIN SMART\u3002\u5728\u8f6f\u4ef6\u7684\u4e3b\u754c\u9762\u4e0a&#xff0c;\u627e\u5230\u7f51\u7edc\u914d\u7f6e\u90e8\u5206&#xff0c;\u7136\u540e\u8fdb\u5165Modbus TCP\u670d\u52a1\u5668\u7684\u914d\u7f6e\u754c\u9762\u3002 <\/p>\n<p> \u5177\u4f53\u6b65\u9aa4\u5982\u4e0b&#xff1a; <\/p>\n<li> \u6253\u5f00\u201c\u7f51\u7edc\u901a\u4fe1\u201d\u83dc\u5355\u3002 <\/li>\n<li> \u70b9\u51fb\u201cModbus TCP\u670d\u52a1\u5668\u201d\u9009\u9879\u3002 <\/li>\n<li> \u9009\u62e9\u201c\u542f\u7528Modbus TCP\u670d\u52a1\u5668\u201d\u590d\u9009\u6846\u4ee5\u6fc0\u6d3b\u670d\u52a1\u5668\u529f\u80fd\u3002 <\/li>\n<li> \u4e3aModbus TCP\u670d\u52a1\u5668\u8bbe\u7f6eIP\u5730\u5740\u3002\u786e\u4fdd\u5b83\u4e0e\u7f51\u7edc\u4e2d\u5176\u4ed6\u8bbe\u5907\u7684IP\u5730\u5740\u4e0d\u51b2\u7a81&#xff0c;\u5e76\u4e14\u7b26\u5408\u672c\u5730\u7f51\u7edc\u7684IP\u914d\u7f6e\u89c4\u5219\u3002 <\/li>\n<li> \u8bbe\u5b9aModbus TCP\u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7\u3002\u7aef\u53e3\u53f7\u9700\u8981\u5728\u4e00\u4e2a\u672a\u88ab\u4f7f\u7528\u7684\u7aef\u53e3\u4e0a\u8bbe\u7f6e&#xff0c;\u907f\u514d\u4e0e\u5176\u4ed6\u670d\u52a1\u53d1\u751f\u51b2\u7a81\u3002 <\/li>\n<li> &#xff08;\u53ef\u9009&#xff09;\u914d\u7f6e\u901a\u4fe1\u8d85\u65f6\u65f6\u95f4\u548c\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\u7b49\u9ad8\u7ea7\u53c2\u6570\u3002 <\/li>\n<p> \u5b8c\u6210\u8fd9\u4e9b\u6b65\u9aa4\u540e&#xff0c;\u70b9\u51fb\u201c\u5e94\u7528\u201d\u6216\u201c\u786e\u5b9a\u201d\u6765\u4fdd\u5b58\u914d\u7f6e\u3002\u8fd9\u65f6\u5019&#xff0c;S7-200SMART PLC\u5c06\u5f00\u59cb\u5728\u6307\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u4e0a\u76d1\u542cModbus TCP\u8bf7\u6c42\u3002 <\/p>\n<h4> 3.1.2 \u7aef\u53e3\u914d\u7f6e\u7684\u9ad8\u7ea7\u8bbe\u7f6e <\/h4>\n<p> \u9664\u4e86\u57fa\u672c\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u8bbe\u7f6e\u5916&#xff0c;S7-200SMART PLC\u7684Modbus TCP\u670d\u52a1\u5668\u529f\u80fd\u8fd8\u63d0\u4f9b\u4e86\u9ad8\u7ea7\u8bbe\u7f6e\u9009\u9879&#xff0c;\u4ee5\u652f\u6301\u66f4\u590d\u6742\u7684\u5e94\u7528\u9700\u6c42\u3002 <\/p>\n<p> \u9ad8\u7ea7\u8bbe\u7f6e\u53ef\u4ee5\u5305\u62ec&#xff1a; <\/p>\n<ul>\n<li>  \u901a\u4fe1\u8d85\u65f6\u8bbe\u7f6e  &#xff1a;\u8bbe\u7f6e\u5728\u591a\u957f\u65f6\u95f4\u5185\u6ca1\u6709\u63a5\u6536\u5230\u8bf7\u6c42\u65f6&#xff0c;\u670d\u52a1\u5668\u5c06\u5173\u95ed\u8fde\u63a5\u3002 <\/li>\n<li>  \u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570  &#xff1a;\u8bbe\u7f6eModbus TCP\u670d\u52a1\u5668\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u7684\u6700\u5927\u5ba2\u6237\u7aef\u8fde\u63a5\u6570\u3002 <\/li>\n<li>  \u5b89\u5168\u9009\u9879  &#xff1a;\u5141\u8bb8\u914d\u7f6e\u52a0\u5bc6\u8fde\u63a5\u548c\u8ba4\u8bc1\u673a\u5236&#xff0c;\u4ee5\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u3002 <\/li>\n<li>  \u6d41\u91cf\u63a7\u5236  &#xff1a;\u53ef\u4ee5\u8bbe\u7f6e\u6d41\u63a7\u53c2\u6570&#xff0c;\u4ee5\u7ba1\u7406\u7f51\u7edc\u6d41\u91cf\u548c\u9632\u6b62\u7f51\u7edc\u62e5\u5835\u3002 <\/li>\n<\/ul>\n<p> \u5728STEP 7 Micro\/WIN SMART\u4e2d\u8fdb\u884c\u9ad8\u7ea7\u8bbe\u7f6e\u65f6&#xff0c;\u9700\u8981\u8fdb\u5165\u8be6\u7ec6\u7684\u670d\u52a1\u5668\u914d\u7f6e\u7a97\u53e3\u3002\u6bcf\u4e2a\u9ad8\u7ea7\u53c2\u6570\u90fd\u5e94\u5f53\u6839\u636e\u5177\u4f53\u7684\u7f51\u7edc\u73af\u5883\u548c\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u3002\u4f8b\u5982&#xff0c;\u5728\u7f51\u7edc\u6761\u4ef6\u4e0d\u4f73\u7684\u73af\u5883\u4e2d&#xff0c;\u53ef\u80fd\u9700\u8981\u589e\u52a0\u901a\u4fe1\u8d85\u65f6\u65f6\u95f4&#xff1b;\u800c\u5728\u5b89\u5168\u8981\u6c42\u8f83\u9ad8\u7684\u73af\u5883\u4e2d&#xff0c;\u5219\u9700\u8981\u542f\u7528\u5b89\u5168\u9009\u9879\u3002 <\/p>\n<p> \u5728\u914d\u7f6e\u65f6&#xff0c;\u52a1\u5fc5\u786e\u4fdd\u4e86\u89e3\u6bcf\u4e2a\u53c2\u6570\u7684\u4f5c\u7528&#xff0c;\u5e76\u5bf9\u53ef\u80fd\u4ea7\u751f\u7684\u5f71\u54cd\u4f5c\u51fa\u8bc4\u4f30\u3002\u4e0d\u6070\u5f53\u7684\u9ad8\u7ea7\u8bbe\u7f6e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u901a\u4fe1\u6548\u7387\u4f4e\u4e0b&#xff0c;\u751a\u81f3\u53ef\u80fd\u5f15\u8d77\u901a\u4fe1\u4e2d\u65ad\u3002 <\/p>\n<h3> 3.2 Modbus TCP\u901a\u4fe1\u7684\u6570\u636e\u6620\u5c04 <\/h3>\n<h4> 3.2.1 \u6570\u636e\u6620\u5c04\u7684\u539f\u7406\u4e0e\u91cd\u8981\u6027 <\/h4>\n<p> Modbus TCP\u901a\u4fe1\u7684\u4e00\u4e2a\u5173\u952e\u7ec4\u6210\u90e8\u5206\u662f\u6570\u636e\u6620\u5c04\u3002\u5728S7-200SMART PLC\u4e2d&#xff0c;\u6570\u636e\u6620\u5c04\u786e\u4fdd\u4e86\u6570\u636e\u4ee5\u4e00\u79cd\u903b\u8f91\u548c\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u5728Modbus\u7f51\u7edc\u4e2d\u88ab\u8bbf\u95ee\u548c\u7ba1\u7406\u3002\u6570\u636e\u6620\u5c04\u7684\u91cd\u8981\u6027\u5728\u4e8e\u5b83\u5141\u8bb8\u5ba2\u6237\u7aef\u51c6\u786e\u5730\u8bfb\u5199PLC\u5b58\u50a8\u5668\u4e2d\u7684\u7279\u5b9a\u6570\u636e\u9879\u3002 <\/p>\n<p> \u6570\u636e\u6620\u5c04\u7684\u539f\u7406\u662f\u5c06PLC\u5185\u7684\u5730\u5740\u8303\u56f4\u4e0eModbus\u5730\u5740\u7a7a\u95f4\u5bf9\u5e94\u8d77\u6765\u3002\u4f8b\u5982&#xff0c;\u5728Modbus\u534f\u8bae\u4e2d&#xff0c;\u4e00\u4e2a\u5bc4\u5b58\u5668\u5730\u5740&#xff08;\u4f8b\u59820x0000&#xff09;\u901a\u5e38\u6620\u5c04\u5230PLC\u5185\u90e8\u6570\u636e\u5b58\u50a8\u7684\u4e00\u4e2a\u8d77\u59cb\u5730\u5740\u3002\u5f53Modbus\u5ba2\u6237\u7aef\u8bf7\u6c42\u8bfb\u53d6\u6216\u5199\u5165\u4e00\u4e2a\u7279\u5b9a\u7684\u5bc4\u5b58\u5668\u5730\u5740\u65f6&#xff0c;PLC\u80fd\u591f\u5c06\u6b64\u5730\u5740\u6620\u5c04\u5230\u5185\u90e8\u5b58\u50a8\u5668\u7684\u76f8\u5e94\u5730\u5740&#xff0c;\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u7684\u6b63\u786e\u8bfb\u5199\u3002 <\/p>\n<p> \u6570\u636e\u6620\u5c04\u7684\u91cd\u8981\u6027\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762&#xff1a; <\/p>\n<ul>\n<li>  \u6570\u636e\u8bbf\u95ee  &#xff1a;\u6620\u5c04\u4f7f\u5f97Modbus\u5ba2\u6237\u7aef\u80fd\u591f\u9ad8\u6548\u5730\u8bbf\u95ee\u5b58\u50a8\u5728PLC\u5185\u7684\u6570\u636e&#xff0c;\u800c\u65e0\u9700\u77e5\u9053PLC\u7684\u5185\u90e8\u7ed3\u6784\u7ec6\u8282\u3002 <\/li>\n<li>  \u901a\u4fe1\u6548\u7387  &#xff1a;\u7cbe\u786e\u7684\u6570\u636e\u6620\u5c04\u51cf\u5c11\u4e86\u6570\u636e\u8bf7\u6c42\u548c\u54cd\u5e94\u6240\u9700\u7684\u65f6\u95f4&#xff0c;\u63d0\u9ad8\u4e86\u901a\u4fe1\u7684\u6548\u7387\u3002 <\/li>\n<li>  \u7cfb\u7edf\u96c6\u6210  &#xff1a;\u6570\u636e\u6620\u5c04\u662f\u5b9e\u73b0\u591a\u79cd\u4e0d\u540c\u8bbe\u5907\u548c\u7cfb\u7edf\u96c6\u6210\u7684\u5173\u952e&#xff0c;\u5b83\u5141\u8bb8\u8bbe\u5907\u4e4b\u95f4\u4ee5\u6807\u51c6\u5316\u7684\u65b9\u5f0f\u4ea4\u6362\u4fe1\u606f\u3002 <\/li>\n<li>  \u9519\u8bef\u6392\u67e5  &#xff1a;\u5728\u51fa\u73b0\u95ee\u9898\u65f6&#xff0c;\u4e00\u4e2a\u6e05\u6670\u7684\u6570\u636e\u6620\u5c04\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u8fc5\u901f\u5b9a\u4f4d\u95ee\u9898\u6240\u5728\u3002 <\/li>\n<\/ul>\n<h4> 3.2.2 \u5b9e\u73b0\u6570\u636e\u6620\u5c04\u7684\u6b65\u9aa4\u4e0e\u6280\u5de7 <\/h4>\n<p> \u8981\u5728S7-200SMART PLC\u4e0a\u5b9e\u73b0\u6570\u636e\u6620\u5c04&#xff0c;\u9700\u8981\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c&#xff1a; <\/p>\n<li>  \u5b9a\u4e49\u6570\u636e\u6a21\u578b  &#xff1a;\u9996\u5148\u786e\u5b9aPLC\u9700\u8981\u5171\u4eab\u7ed9Modbus\u5ba2\u6237\u7aef\u7684\u6570\u636e\u7c7b\u578b\u548c\u6570\u636e\u7ed3\u6784&#xff0c;\u5982\u8f93\u5165\u8f93\u51fa\u5bc4\u5b58\u5668\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\u7b49\u3002 <\/li>\n<li>  \u786e\u5b9a\u6620\u5c04\u7b56\u7565  &#xff1a;\u6839\u636e\u6570\u636e\u6a21\u578b&#xff0c;\u5b9a\u4e49\u6620\u5c04\u7b56\u7565&#xff0c;\u51b3\u5b9a\u54ea\u4e9bPLC\u5185\u5b58\u5730\u5740\u5c06\u5bf9\u5e94Modbus\u4e2d\u7684\u54ea\u4e9b\u5730\u5740\u3002\u4f8b\u5982&#xff0c;Modbus\u5730\u57400x0001\u53ef\u80fd\u5bf9\u5e94PLC\u7684\u8f93\u5165\u5bc4\u5b58\u5668V0.0\u3002 <\/li>\n<li>  \u914d\u7f6e\u6620\u5c04\u8868  &#xff1a;\u5728STEP 7 Micro\/WIN SMART\u4e2d&#xff0c;\u8fdb\u5165\u6570\u636e\u6620\u5c04\u914d\u7f6e\u754c\u9762&#xff0c;\u5c06\u5b9a\u4e49\u597d\u7684\u6620\u5c04\u7b56\u7565\u8bbe\u7f6e\u5230PLC\u4e2d\u3002 <\/li>\n<li>  \u68c0\u67e5\u548c\u9a8c\u8bc1  &#xff1a;\u914d\u7f6e\u5b8c\u6210\u540e&#xff0c;\u4f7f\u7528Modbus\u5ba2\u6237\u7aef\u5de5\u5177\u8fdb\u884c\u68c0\u67e5\u548c\u9a8c\u8bc1&#xff0c;\u786e\u4fdd\u6570\u636e\u6620\u5c04\u6b63\u786e\u65e0\u8bef\u3002 <\/li>\n<p> \u5b9e\u73b0\u6570\u636e\u6620\u5c04\u65f6\u7684\u4e00\u4e9b\u6280\u5de7\u5305\u62ec&#xff1a; <\/p>\n<ul>\n<li>  \u4f7f\u7528\u6807\u51c6\u5316\u7684\u5730\u5740\u7a7a\u95f4  &#xff1a;\u4e3a\u4e86\u517c\u5bb9\u6027&#xff0c;\u5c3d\u91cf\u4f7f\u7528Modbus\u534f\u8bae\u4e2d\u6807\u51c6\u5316\u7684\u5730\u5740\u7a7a\u95f4\u548c\u6570\u636e\u7c7b\u578b\u3002 <\/li>\n<li>  \u63d0\u524d\u89c4\u5212  &#xff1a;\u5728\u901a\u4fe1\u9700\u6c42\u521d\u671f\u5c31\u8fdb\u884c\u8be6\u7ec6\u7684\u89c4\u5212&#xff0c;\u907f\u514d\u540e\u7eed\u8c03\u6574\u5e26\u6765\u989d\u5916\u5de5\u4f5c\u3002 <\/li>\n<li>  \u6587\u6863\u5316  &#xff1a;\u8bb0\u5f55\u6620\u5c04\u7b56\u7565\u548c\u5b9e\u65bd\u8fc7\u7a0b&#xff0c;\u4e3a\u540e\u7eed\u7684\u7ef4\u62a4\u548c\u95ee\u9898\u89e3\u51b3\u63d0\u4f9b\u65b9\u4fbf\u3002 <\/li>\n<li>  \u6d4b\u8bd5  &#xff1a;\u5728\u5b9e\u9645\u90e8\u7f72\u524d&#xff0c;\u8fdb\u884c\u5145\u5206\u7684\u6d4b\u8bd5&#xff0c;\u4ee5\u786e\u4fdd\u6620\u5c04\u7684\u6b63\u786e\u6027\u3002 <\/li>\n<\/ul>\n<p> \u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6b65\u9aa4\u548c\u6280\u5de7&#xff0c;\u53ef\u4ee5\u6709\u6548\u5730\u5728S7-200SMART PLC\u548cModbus TCP\u5ba2\u6237\u7aef\u4e4b\u95f4\u5b9e\u73b0\u9ad8\u6548\u4e14\u53ef\u9760\u7684\u6570\u636e\u6620\u5c04\u3002 <\/p>\n<h3> 3.3 Modbus TCP\u670d\u52a1\u5668\u7aef\u53e3\u914d\u7f6e\u4ee3\u7801\u793a\u4f8b\u4e0e\u5206\u6790 <\/h3>\n<p> \u4e3a\u4e86\u63d0\u4f9b\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u53c2\u8003&#xff0c;\u4ee5\u4e0b\u662f\u4e00\u4e2aS7-200SMART PLC\u8bbe\u7f6eModbus TCP\u670d\u52a1\u5668\u7aef\u53e3\u7684\u57fa\u672c\u4ee3\u7801\u793a\u4f8b\u3002\u8fd9\u4e2a\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528STEP 7 Micro\/WIN SMART\u8f6f\u4ef6\u6765\u914d\u7f6ePLC\u4ee5\u63a5\u53d7Modbus TCP\u8fde\u63a5\u3002 <\/p>\n<p>\/\/ \u793a\u4f8b\u4ee3\u7801\u5757 &#8211; \u914d\u7f6eModbus TCP\u670d\u52a1\u5668\u7aef\u53e3<br \/>\n\/\/ \u8fd9\u662f\u4e00\u4e2a\u793a\u610f\u6027\u4ee3\u7801\u7247\u6bb5&#xff0c;\u4e0d\u662f\u5b9e\u9645\u7684\u7f16\u7a0b\u4ee3\u7801<br \/>\n\/\/ \u5b9e\u9645\u7684\u8bbe\u7f6e\u4f1a\u5728STEP 7 Micro\/WIN SMART\u8f6f\u4ef6\u754c\u9762\u4e2d\u5b8c\u6210<\/p>\n<p>\/\/ \u914d\u7f6e\u6b65\u9aa4<br \/>\nbegin<br \/>\n    EnableModbusTCPServer :&#061; True; \/\/ \u542f\u7528Modbus TCP\u670d\u52a1\u5668<br \/>\n    ModbusTCPIP :&#061; &#039;192.168.1.10&#039;; \/\/ \u8bbe\u7f6eModbus TCP\u670d\u52a1\u5668IP\u5730\u5740<br \/>\n    ModbusTCPPort :&#061; 502; \/\/ \u8bbe\u7f6eModbus TCP\u670d\u52a1\u5668\u7aef\u53e3<br \/>\n    \/\/ \u8bbe\u7f6e\u5176\u4ed6\u9ad8\u7ea7\u53c2\u6570&#xff08;\u7701\u7565&#xff09;<br \/>\nend;<\/p>\n<p> \u4e0a\u8ff0\u4ee3\u7801\u5757\u7684\u76ee\u7684\u662f\u5728PLC\u4e2d\u542f\u7528Modbus TCP\u670d\u52a1\u5668\u529f\u80fd&#xff0c;\u5e76\u4e3a\u8be5\u670d\u52a1\u5668\u8bbe\u7f6eIP\u5730\u5740\u548c\u7aef\u53e3\u3002\u4ee3\u7801\u4e2d\u7684\u53d8\u91cf  EnableModbusTCPServer  \u7528\u4e8e\u63a7\u5236\u662f\u5426\u542f\u7528Modbus TCP\u670d\u52a1\u5668&#xff0c;  ModbusTCPIP  \u7528\u4e8e\u8bbe\u7f6e\u670d\u52a1\u5668\u7684IP\u5730\u5740&#xff0c;\u800c  ModbusTCPPort  \u5219\u8bbe\u7f6e\u76d1\u542c\u7684\u7aef\u53e3\u3002 <\/p>\n<p> \u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u542f\u7528Modbus TCP\u670d\u52a1\u5668\u7684\u64cd\u4f5c\u4f1a\u901a\u8fc7PLC\u7684\u914d\u7f6e\u8f6f\u4ef6\u8fdb\u884c&#xff0c;\u800c\u4e0d\u662f\u7f16\u5199\u4ee3\u7801\u3002\u8fd9\u4e2a\u4ee3\u7801\u5757\u66f4\u591a\u662f\u7528\u4e8e\u903b\u8f91\u89e3\u91ca\u548c\u7406\u8bba\u8bf4\u660e\u3002\u5728STEP 7 Micro\/WIN SMART\u8f6f\u4ef6\u4e2d&#xff0c;\u60a8\u53ef\u4ee5\u901a\u8fc7\u56fe\u5f62\u7528\u6237\u754c\u9762\u5b8c\u6210\u8fd9\u4e9b\u64cd\u4f5c&#xff0c;\u5e76\u4e14\u6240\u6709\u7684\u4fee\u6539\u90fd\u4f1a\u901a\u8fc7\u5185\u90e8\u901a\u4fe1\u534f\u8bae\u53d1\u9001\u5230PLC\u8fdb\u884c\u8bbe\u7f6e\u3002 <\/p>\n<h3> 3.4 \u5b9e\u73b0\u6570\u636e\u6620\u5c04\u7684\u4ee3\u7801\u793a\u4f8b\u4e0e\u5206\u6790 <\/h3>\n<p> \u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728S7-200SMART PLC\u4e2d\u5b9e\u73b0\u6570\u636e\u6620\u5c04\u3002\u8bf7\u6ce8\u610f&#xff0c;\u8fd9\u540c\u6837\u662f\u4e00\u4e2a\u793a\u610f\u6027\u4ee3\u7801\u7247\u6bb5&#xff0c;\u7528\u4ee5\u8bf4\u660e\u6982\u5ff5&#xff0c;\u5e76\u975e\u771f\u5b9e\u7684\u7f16\u7a0b\u4ee3\u7801\u3002 <\/p>\n<p>\/\/ \u793a\u4f8b\u4ee3\u7801\u5757 &#8211; \u5b9e\u73b0\u6570\u636e\u6620\u5c04<br \/>\n\/\/ \u8fd9\u662f\u4e00\u4e2a\u793a\u610f\u6027\u4ee3\u7801\u7247\u6bb5&#xff0c;\u4e0d\u662f\u5b9e\u9645\u7684\u7f16\u7a0b\u4ee3\u7801<br \/>\n\/\/ \u5b9e\u9645\u7684\u6570\u636e\u6620\u5c04\u914d\u7f6e\u4f1a\u5728STEP 7 Micro\/WIN SMART\u8f6f\u4ef6\u754c\u9762\u4e2d\u5b8c\u6210<\/p>\n<p>\/\/ \u5047\u8bbe\u7684\u6620\u5c04\u914d\u7f6e<br \/>\n\/\/ \u5c06PLC\u7684V\u5b58\u50a8\u533a\u5730\u5740\u6620\u5c04\u5230Modbus\u7684\u4fdd\u6301\u5bc4\u5b58\u5668<br \/>\nbegin<br \/>\n    \/\/ \u6620\u5c04Modbus\u5730\u57400x0000\u5230PLC\u5730\u5740V0.0<br \/>\n    \/\/ \u6620\u5c04Modbus\u5730\u57400x0001\u5230PLC\u5730\u5740V0.1<br \/>\n    \/\/ &#8230;<br \/>\n    \/\/ \u6620\u5c04Modbus\u5730\u57400x000F\u5230PLC\u5730\u5740V0.15<br \/>\n    \/\/ \u8bbe\u7f6e\u6620\u5c04\u5b8c\u6210\u6807\u5fd7<br \/>\nend;<\/p>\n<p> \u4ee3\u7801\u5757\u4e2d\u7684\u6620\u5c04\u903b\u8f91\u57fa\u4e8eModbus\u5730\u5740\u4e0ePLC\u5185\u5b58\u5730\u5740\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002\u6bcf\u4e00\u884c\u4ee3\u7801\u90fd\u4ee3\u8868\u7740\u4e00\u4e2a\u5730\u5740\u7684\u6620\u5c04&#xff0c;\u5176\u4e2dModbus\u5730\u5740\u4ece0x0000\u5f00\u59cb&#xff0c;\u5bf9\u5e94PLC\u7684V\u5b58\u50a8\u533a\u4e2d\u7684\u5177\u4f53\u5730\u5740\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;PLC\u914d\u7f6e\u8f6f\u4ef6\u4f1a\u63d0\u4f9b\u56fe\u5f62\u5316\u7684\u6620\u5c04\u754c\u9762&#xff0c;\u7528\u6237\u53ef\u4ee5\u62d6\u653e\u6216\u8f93\u5165\u5730\u5740\u6765\u521b\u5efa\u6620\u5c04&#xff0c;\u800c\u4e0d\u9700\u8981\u7f16\u5199\u4ee3\u7801\u3002 <\/p>\n<p> \u5b8c\u6210\u6620\u5c04\u914d\u7f6e\u540e&#xff0c;\u9700\u8981\u5728\u8f6f\u4ef6\u4e2d\u70b9\u51fb\u76f8\u5e94\u7684\u201c\u5e94\u7528\u201d\u6216\u201c\u63d0\u4ea4\u201d\u6309\u94ae&#xff0c;\u4ee5\u786e\u4fdd\u65b0\u7684\u6620\u5c04\u8bbe\u7f6e\u88ab\u5e94\u7528\u5230PLC\u4e2d\u3002\u7136\u540e&#xff0c;\u53ef\u4ee5\u4f7f\u7528Modbus\u6d4b\u8bd5\u5ba2\u6237\u7aef\u8f6f\u4ef6\u6765\u9a8c\u8bc1\u6620\u5c04\u662f\u5426\u6b63\u786e\u914d\u7f6e\u3002 <\/p>\n<p> \u901a\u8fc7\u4ee3\u7801\u5757\u7684\u5206\u6790&#xff0c;\u6211\u4eec\u53ef\u4ee5\u770b\u5230&#xff0c;\u867d\u7136PLC\u7684\u914d\u7f6e\u4e0d\u9700\u8981\u7f16\u7a0b&#xff0c;\u4f46\u662f\u7406\u89e3\u8fd9\u4e9b\u914d\u7f6e\u80cc\u540e\u7684\u903b\u8f91\u5bf9\u4e8e\u8fdb\u884c\u9ad8\u7ea7\u8c03\u8bd5\u548c\u95ee\u9898\u89e3\u51b3\u975e\u5e38\u6709\u5e2e\u52a9\u3002 <\/p>\n<h2> 4. S7-200SMART\u6307\u4ee4\u7cfb\u7edf\u4e0eModbus TCP\u8bf7\u6c42\u5904\u7406 <\/h2>\n<h3> 4.1 S7-200SMART\u6307\u4ee4\u7cfb\u7edf\u7684\u8be6\u7ec6\u4ecb\u7ecd <\/h3>\n<h4> 4.1.1 \u6307\u4ee4\u7cfb\u7edf\u7684\u7ec4\u6210\u4e0e\u5206\u7c7b <\/h4>\n<p> S7-200SMART PLC\u7684\u6307\u4ee4\u7cfb\u7edf\u662f\u5176\u7f16\u7a0b\u7684\u6838\u5fc3&#xff0c;\u5b83\u5305\u542b\u4e86\u7528\u4e8e\u5b9e\u73b0\u5404\u79cd\u903b\u8f91\u63a7\u5236\u548c\u6570\u636e\u5904\u7406\u7684\u6307\u4ee4\u3002\u6307\u4ee4\u6309\u7167\u5176\u529f\u80fd\u53ef\u4ee5\u5927\u81f4\u5206\u4e3a\u6570\u636e\u64cd\u4f5c\u6307\u4ee4\u3001\u7b97\u672f\u548c\u903b\u8f91\u8fd0\u7b97\u6307\u4ee4\u3001\u7a0b\u5e8f\u63a7\u5236\u6307\u4ee4\u3001\u7279\u6b8a\u529f\u80fd\u6307\u4ee4\u7b49\u7c7b\u522b\u3002 <\/p>\n<ul>\n<li>  \u6570\u636e\u64cd\u4f5c\u6307\u4ee4  &#xff1a;\u8fd9\u7c7b\u6307\u4ee4\u7528\u4e8e\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5b58\u50a8\u3001\u79fb\u52a8\u548c\u6bd4\u8f83\u7b49\u64cd\u4f5c&#xff0c;\u662f\u5b9e\u73b0\u6570\u636e\u5904\u7406\u7684\u57fa\u7840\u3002 <\/li>\n<li>  \u7b97\u672f\u548c\u903b\u8f91\u8fd0\u7b97\u6307\u4ee4  &#xff1a;\u5b83\u4eec\u7528\u4e8e\u5bf9\u6570\u636e\u6267\u884c\u6570\u5b66\u8ba1\u7b97\u548c\u903b\u8f91\u5224\u65ad&#xff0c;\u5305\u62ec\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\u4ee5\u53ca\u4e0e\u3001\u6216\u3001\u975e\u7b49\u903b\u8f91\u64cd\u4f5c\u3002 <\/li>\n<li>  \u7a0b\u5e8f\u63a7\u5236\u6307\u4ee4  &#xff1a;\u7a0b\u5e8f\u63a7\u5236\u6307\u4ee4\u5305\u62ec\u8df3\u8f6c\u3001\u5faa\u73af\u3001\u5b50\u7a0b\u5e8f\u8c03\u7528\u7b49&#xff0c;\u5b83\u4eec\u63a7\u5236\u7a0b\u5e8f\u7684\u6267\u884c\u6d41\u7a0b\u3002 <\/li>\n<li>  \u7279\u6b8a\u529f\u80fd\u6307\u4ee4  &#xff1a;\u8fd9\u7c7b\u6307\u4ee4\u7528\u4e8e\u5b9e\u73b0\u5b9a\u65f6\u3001\u8ba1\u6570\u3001\u901a\u8baf\u7b49\u7279\u5b9a\u529f\u80fd\u3002 <\/li>\n<\/ul>\n<p> \u6bcf\u4e2a\u6307\u4ee4\u90fd\u6709\u5176\u7279\u5b9a\u7684\u64cd\u4f5c\u7801&#xff08;OpCode&#xff09;&#xff0c;\u5e76\u4e14\u6709\u7740\u4e25\u683c\u7684\u64cd\u4f5c\u6570\u683c\u5f0f\u548c\u7528\u6cd5&#xff0c;\u8fd9\u9700\u8981\u7a0b\u5e8f\u5458\u5bf9\u6307\u4ee4\u96c6\u6709\u6df1\u5165\u7684\u7406\u89e3\u624d\u80fd\u9ad8\u6548\u5730\u7f16\u5199\u7a0b\u5e8f\u3002 <\/p>\n<h4> 4.1.2 \u6307\u4ee4\u5728Modbus TCP\u901a\u4fe1\u4e2d\u7684\u5e94\u7528 <\/h4>\n<p> \u5728S7-200SMART\u4e0eModbus TCP\u901a\u4fe1\u4e2d&#xff0c;\u6307\u4ee4\u7cfb\u7edf\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002\u7a0b\u5e8f\u5458\u9700\u8981\u5229\u7528\u8fd9\u4e9b\u6307\u4ee4\u6765\u5904\u7406Modbus TCP\u8bf7\u6c42&#xff0c;\u4ee5\u53ca\u63a7\u5236\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002\u4f8b\u5982&#xff0c;\u901a\u8fc7\u4f7f\u7528\u6570\u636e\u64cd\u4f5c\u6307\u4ee4\u6765\u8bfb\u53d6\u6216\u5199\u5165Modbus\u4ece\u8bbe\u5907\u7684\u5bc4\u5b58\u5668&#xff0c;\u6216\u4f7f\u7528\u7279\u6b8a\u529f\u80fd\u6307\u4ee4\u6765\u5904\u7406\u7f51\u7edc\u8fde\u63a5\u548c\u65ad\u5f00\u7684\u903b\u8f91\u3002 <\/p>\n<p> \u5728\u5b9e\u9645\u7684\u901a\u4fe1\u8fc7\u7a0b\u4e2d&#xff0c;\u9996\u5148\u9700\u8981\u901a\u8fc7\u7f16\u7a0b\u8bbe\u5b9a\u597d\u7f51\u7edc\u53c2\u6570&#xff0c;\u7136\u540e\u4f7f\u7528\u7279\u5b9a\u7684\u901a\u4fe1\u6307\u4ee4&#xff08;\u5982\u201cSEND\u201d\u548c\u201cRECEIVE\u201d&#xff09;\u6765\u5b9e\u73b0\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002\u5f53\u63a5\u6536\u5230Modbus\u8bf7\u6c42\u65f6&#xff0c;\u7a0b\u5e8f\u5fc5\u987b\u6b63\u786e\u8bc6\u522b\u529f\u80fd\u7801&#xff0c;\u6839\u636e\u529f\u80fd\u7801\u7684\u7c7b\u578b\u6267\u884c\u76f8\u5e94\u7684\u8bfb\u5199\u64cd\u4f5c&#xff0c;\u5e76\u8fd4\u56de\u5904\u7406\u7ed3\u679c\u3002\u8fd9\u4e00\u8fde\u4e32\u7684\u8fc7\u7a0b\u6d89\u53ca\u5230\u591a\u4e2a\u6307\u4ee4\u7684\u534f\u540c\u5de5\u4f5c&#xff0c;\u4f53\u73b0\u4e86\u6307\u4ee4\u7cfb\u7edf\u5728Modbus TCP\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u6df1\u5ea6\u548c\u5e7f\u5ea6\u3002 <\/p>\n<h3> 4.2 \u5b9e\u73b0Modbus TCP\u8bf7\u6c42\u5904\u7406 <\/h3>\n<h4> 4.2.1 \u8bf7\u6c42\u5904\u7406\u7684\u6d41\u7a0b\u4e0e\u903b\u8f91 <\/h4>\n<p> \u5b9e\u73b0Modbus TCP\u8bf7\u6c42\u5904\u7406\u7684\u903b\u8f91\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4&#xff1a; <\/p>\n<li>  \u76d1\u542c\u548c\u63a5\u6536  &#xff1a;\u9996\u5148&#xff0c;PLC\u9700\u8981\u76d1\u542cModbus TCP\u7aef\u53e3&#xff0c;\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002 <\/li>\n<li>  \u8bf7\u6c42\u89e3\u6790  &#xff1a;\u8fde\u63a5\u5efa\u7acb\u540e&#xff0c;PLC\u9700\u8981\u5bf9\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bf7\u6c42\u6570\u636e\u5305\u8fdb\u884c\u89e3\u6790&#xff0c;\u4ee5\u83b7\u53d6\u529f\u80fd\u7801\u548c\u6570\u636e\u533a\u3002 <\/li>\n<li>  \u529f\u80fd\u7801\u5904\u7406  &#xff1a;\u6839\u636e\u529f\u80fd\u7801&#xff0c;\u51b3\u5b9a\u6267\u884c\u8bfb\u64cd\u4f5c\u8fd8\u662f\u5199\u64cd\u4f5c\u3002 <\/li>\n<li>  \u6267\u884c\u64cd\u4f5c  &#xff1a;\u5982\u679c\u662f\u8bfb\u64cd\u4f5c&#xff0c;\u5219\u4ece\u6307\u5b9a\u7684\u5bc4\u5b58\u5668\u6216\u7ebf\u5708\u4e2d\u8bfb\u53d6\u6570\u636e&#xff1b;\u5982\u679c\u662f\u5199\u64cd\u4f5c&#xff0c;\u5219\u5c06\u6570\u636e\u5199\u5165\u76f8\u5e94\u7684\u5bc4\u5b58\u5668\u6216\u7ebf\u5708\u3002 <\/li>\n<li>  \u54cd\u5e94\u6784\u9020  &#xff1a;\u6839\u636e\u64cd\u4f5c\u7ed3\u679c\u6784\u9020\u54cd\u5e94\u6570\u636e\u5305\u3002 <\/li>\n<li>  \u53d1\u9001\u54cd\u5e94  &#xff1a;\u5c06\u54cd\u5e94\u6570\u636e\u5305\u53d1\u9001\u56de\u5ba2\u6237\u7aef&#xff0c;\u5e76\u5173\u95ed\u8fde\u63a5\u3002 <\/li>\n<p> \u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5316\u7684\u4ee3\u7801\u793a\u4f8b&#xff0c;\u6f14\u793a\u4e86\u5982\u4f55\u5904\u7406Modbus TCP\u8bf7\u6c42&#xff1a; <\/p>\n<p>\/\/ \u4f2a\u4ee3\u7801\u793a\u4f8b<br \/>\nIF MODBUS_TCP_SERVER_HAS_INCOMING_REQUEST THEN<br \/>\n    READ_REQUEST_DATA<br \/>\n    IF IS_VALID_REQUEST THEN<br \/>\n        DECODE_FUNCTION_CODE<br \/>\n        SWITCH(FUNCTION_CODE)<br \/>\n            CASE READ_COILS:<br \/>\n                PERFORM_READ_COILS<br \/>\n                BUILD_RESPONSE<br \/>\n            CASE READ_DISCRETE_INPUTS:<br \/>\n                PERFORM_READ_DISCRETE_INPUTS<br \/>\n                BUILD_RESPONSE<br \/>\n            \/\/ \u5176\u4ed6\u529f\u80fd\u7801\u5904\u7406<br \/>\n            DEFAULT:<br \/>\n                SEND_ERROR_RESPONSE<br \/>\n        END SWITCH<br \/>\n    ELSE<br \/>\n        SEND_ERROR_RESPONSE<br \/>\n    END IF<br \/>\n    CLOSE_CONNECTION<br \/>\nEND IF<\/p>\n<p> \u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u4ee5\u4e0a\u903b\u8f91\u9700\u8981\u5d4c\u5165\u5230PLC\u7684\u7a0b\u5e8f\u4e2d&#xff0c;\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u6307\u4ee4\u96c6\u5b9e\u73b0\u3002\u4f8b\u5982&#xff0c;\u5f53\u68c0\u6d4b\u5230Modbus\u8bf7\u6c42\u65f6&#xff0c;\u4f7f\u7528\u8bfb\u53d6\u6307\u4ee4\u83b7\u53d6\u6570\u636e&#xff0c;\u7136\u540e\u4f7f\u7528\u6bd4\u8f83\u6307\u4ee4\u5224\u65ad\u529f\u80fd\u7801&#xff0c;\u518d\u6839\u636e\u529f\u80fd\u7801\u8c03\u7528\u76f8\u5e94\u7684\u529f\u80fd\u5b9e\u73b0\u6570\u636e\u7684\u8bfb\u5199\u64cd\u4f5c\u3002 <\/p>\n<h4> 4.2.2 \u8bf7\u6c42\u5904\u7406\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848 <\/h4>\n<p> \u5728\u5b9e\u73b0Modbus TCP\u8bf7\u6c42\u5904\u7406\u7684\u8fc7\u7a0b\u4e2d&#xff0c;\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u5e38\u89c1\u7684\u95ee\u9898&#xff0c;\u4ee5\u4e0b\u662f\u9488\u5bf9\u8fd9\u4e9b\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848&#xff1a; <\/p>\n<ul>\n<li>  \u8fde\u63a5\u4e0d\u7a33\u5b9a  &#xff1a;\u68c0\u67e5\u7f51\u7edc\u914d\u7f6e&#xff0c;\u786e\u4fdd\u7f51\u7edc\u8fde\u63a5\u7a33\u5b9a\u53ef\u9760&#xff0c;\u53ef\u4ee5\u8bbe\u7f6e\u5fc3\u8df3\u5305&#xff08;Heartbeat&#xff09;\u6765\u4fdd\u6301\u8fde\u63a5\u6d3b\u8dc3\u3002 <\/li>\n<li>  \u6570\u636e\u89e3\u6790\u9519\u8bef  &#xff1a;\u786e\u4fdd\u8bf7\u6c42\u6570\u636e\u5305\u683c\u5f0f\u6b63\u786e&#xff0c;\u6309\u7167Modbus\u534f\u8bae\u4e25\u683c\u89e3\u6790\u529f\u80fd\u7801\u548c\u6570\u636e\u533a\u3002 <\/li>\n<li>  \u8d85\u65f6\u95ee\u9898  &#xff1a;\u8bbe\u7f6e\u5408\u7406\u7684\u8d85\u65f6\u65f6\u95f4&#xff0c;\u5bf9\u8d85\u65f6\u8fdb\u884c\u76d1\u63a7&#xff0c;\u5982\u679c\u8d85\u65f6\u5219\u65ad\u5f00\u8fde\u63a5\u5e76\u6839\u636e\u9700\u6c42\u91cd\u65b0\u5c1d\u8bd5\u8fde\u63a5\u3002 <\/li>\n<li>  \u6570\u636e\u4e0d\u4e00\u81f4  &#xff1a;\u5728\u6267\u884c\u8bfb\u5199\u64cd\u4f5c\u524d\u540e\u8fdb\u884c\u6570\u636e\u4e00\u81f4\u6027\u6821\u9a8c&#xff0c;\u786e\u4fdd\u64cd\u4f5c\u7684\u51c6\u786e\u6027\u3002 <\/li>\n<li>  \u5b89\u5168\u95ee\u9898  &#xff1a;\u5b9e\u65bd\u5b89\u5168\u7b56\u7565&#xff0c;\u5982\u5bc6\u7801\u9a8c\u8bc1\u3001IP\u5730\u5740\u8fc7\u6ee4\u7b49&#xff0c;\u907f\u514d\u975e\u6388\u6743\u8bbf\u95ee\u3002 <\/li>\n<\/ul>\n<p> \u4e0b\u9762\u662f\u4e00\u4e2a\u8868\u683c&#xff0c;\u5c55\u793a\u4e86\u5904\u7406\u8bf7\u6c42\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u7684\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848&#xff1a; <\/p>\n<p> | \u95ee\u9898\u7c7b\u578b | \u63cf\u8ff0 | \u89e3\u51b3\u65b9\u6848 | | &#8212; | &#8212; | &#8212; | | \u8fde\u63a5\u4e0d\u7a33\u5b9a | PLC\u4e0e\u5ba2\u6237\u7aef\u8fde\u63a5\u65ad\u5f00\u6216\u8fde\u63a5\u5931\u8d25 | \u68c0\u67e5\u7f51\u7edc\u914d\u7f6e&#xff0c;\u4f7f\u7528\u5fc3\u8df3\u5305\u7ef4\u6301\u8fde\u63a5 | | \u6570\u636e\u89e3\u6790\u9519\u8bef | \u65e0\u6cd5\u6b63\u786e\u89e3\u6790\u529f\u80fd\u7801\u6216\u6570\u636e\u533a | \u4e25\u683c\u6309\u7167Modbus\u534f\u8bae\u89e3\u6790\u6570\u636e\u5305 | | \u8d85\u65f6\u95ee\u9898 | \u8bf7\u6c42\u6216\u54cd\u5e94\u8d85\u65f6 | \u8bbe\u7f6e\u5408\u7406\u8d85\u65f6\u65f6\u95f4&#xff0c;\u53ca\u65f6\u65ad\u5f00\u6216\u91cd\u8fde | | \u6570\u636e\u4e0d\u4e00\u81f4 | \u6570\u636e\u8bfb\u5199\u524d\u540e\u4e0d\u4e00\u81f4 | \u6821\u9a8c\u6570\u636e\u4e00\u81f4\u6027&#xff0c;\u786e\u4fdd\u64cd\u4f5c\u51c6\u786e\u65e0\u8bef | | \u5b89\u5168\u95ee\u9898 | \u975e\u6388\u6743\u8bbf\u95ee | \u5b9e\u65bd\u5b89\u5168\u7b56\u7565&#xff0c;\u5982\u5bc6\u7801\u9a8c\u8bc1\u548cIP\u8fc7\u6ee4 | <\/p>\n<p> \u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u548c\u6d4b\u8bd5&#xff0c;\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u51b3Modbus TCP\u8bf7\u6c42\u5904\u7406\u4e2d\u7684\u5e38\u89c1\u95ee\u9898&#xff0c;\u786e\u4fdd\u6574\u4e2a\u901a\u4fe1\u8fc7\u7a0b\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002 <\/p>\n<h2> 5. S7-200SMART\u7f16\u7a0b\u4e0e\u901a\u4fe1\u4e2d\u7684\u9ad8\u7ea7\u5e94\u7528 <\/h2>\n<h3> 5.1 \u7f16\u7a0b\u8f6f\u4ef6STEP 7 Micro\/WIN SMART\u7684\u6df1\u5165\u5e94\u7528 <\/h3>\n<p> \u7f16\u7a0b\u8f6f\u4ef6STEP 7 Micro\/WIN SMART\u662f\u5b9e\u73b0S7-200SMART PLC\u7f16\u7a0b\u548c\u901a\u4fe1\u7684\u57fa\u7840\u5de5\u5177\u3002\u6df1\u5165\u5e94\u7528\u8be5\u8f6f\u4ef6&#xff0c;\u4e0d\u4ec5\u9700\u8981\u4e86\u89e3\u5176\u754c\u9762\u5e03\u5c40\u548c\u529f\u80fd&#xff0c;\u8fd8\u8981\u638c\u63e1\u5982\u4f55\u6709\u6548\u5730\u5229\u7528\u5b83\u6765\u8fdb\u884c\u9ad8\u7ea7\u7f16\u7a0b\u3002 <\/p>\n<h4> 5.1.1 \u8f6f\u4ef6\u754c\u9762\u4e0e\u7f16\u7a0b\u5143\u7d20\u8be6\u89e3 <\/h4>\n<p> STEP 7 Micro\/WIN SMART\u7684\u754c\u9762\u8bbe\u8ba1\u7b80\u6d01&#xff0c;\u4f46\u529f\u80fd\u5f3a\u5927\u3002\u5b83\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u533a\u57df&#xff1a; <\/p>\n<ul>\n<li>  \u9879\u76ee\u6811  &#xff1a;\u5de6\u4fa7\u7684\u9879\u76ee\u6811\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6e05\u6670\u7684\u89c6\u56fe\u6765\u7ba1\u7406\u9879\u76ee\u548c\u6240\u6709\u76f8\u5173\u7684\u6570\u636e\u5757\u3001\u529f\u80fd\u5757\u548c\u7a0b\u5e8f\u5757\u3002 <\/li>\n<li>  \u7a0b\u5e8f\u7f16\u8f91\u5668  &#xff1a;\u4e2d\u95f4\u533a\u57df\u662f\u4e3b\u8981\u7684\u5de5\u4f5c\u533a&#xff0c;\u7528\u4e8e\u7f16\u5199\u548c\u7f16\u8f91\u7a0b\u5e8f\u3002\u7a0b\u5e8f\u5757\u7684\u903b\u8f91\u901a\u8fc7\u68af\u5f62\u56fe\u6216\u6307\u4ee4\u5217\u8868\u7684\u65b9\u5f0f\u5c55\u793a\u3002 <\/li>\n<li>  \u53d8\u91cf\u8868  &#xff1a;\u663e\u793a\u6240\u6709\u5b9a\u4e49\u7684\u53d8\u91cf\u53ca\u5176\u5730\u5740\u548c\u5f53\u524d\u503c\u3002 <\/li>\n<li>  \u6307\u4ee4\u641c\u7d22  &#xff1a;\u5305\u542b\u6240\u6709\u53ef\u7528\u6307\u4ee4\u7684\u641c\u7d22\u529f\u80fd&#xff0c;\u65b9\u4fbf\u7528\u6237\u5feb\u901f\u627e\u5230\u9700\u8981\u4f7f\u7528\u7684\u6307\u4ee4\u3002 <\/li>\n<\/ul>\n<h4> 5.1.2 \u7f16\u7a0b\u8f6f\u4ef6\u5728\u901a\u4fe1\u4e2d\u7684\u5173\u952e\u4f5c\u7528 <\/h4>\n<p> STEP 7 Micro\/WIN SMART\u652f\u6301\u521b\u5efaModbus TCP\u901a\u4fe1\u529f\u80fd&#xff0c;\u5173\u952e\u5728\u4e8e\u8f6f\u4ef6\u4e2d\u7684\u901a\u4fe1\u6307\u4ee4\u96c6\u3002\u5728\u7f16\u5199\u7a0b\u5e8f\u65f6&#xff0c;\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7279\u5b9a\u7684\u901a\u4fe1\u6307\u4ee4\u6765\u521d\u59cb\u5316\u901a\u4fe1\u94fe\u8def\u3001\u53d1\u9001\u8bf7\u6c42\u4ee5\u53ca\u5904\u7406\u54cd\u5e94\u3002\u4f8b\u5982&#xff0c;\u5229\u7528\u201cMB_COMM_LOAD\u201d\u6307\u4ee4\u53ef\u4ee5\u52a0\u8f7dModbus\u901a\u4fe1\u6a21\u5757&#xff0c;\u800c\u201cMB_CLIENT\u201d\u548c\u201cMB_SERVER\u201d\u6307\u4ee4\u5219\u5206\u522b\u7528\u4e8e\u5b9e\u73b0Modbus\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7684\u529f\u80fd\u3002 <\/p>\n<h3> 5.2 \u9519\u8bef\u5904\u7406\u548c\u901a\u4fe1\u8d85\u65f6\u673a\u5236\u7684\u5b9e\u73b0 <\/h3>\n<p> \u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u901a\u4fe1\u7cfb\u7edf\u4e2d&#xff0c;\u9519\u8bef\u5904\u7406\u548c\u8d85\u65f6\u68c0\u6d4b\u662f\u4fdd\u8bc1\u901a\u4fe1\u53ef\u9760\u6027\u7684\u5173\u952e\u90e8\u5206\u3002 <\/p>\n<h4> 5.2.1 \u9519\u8bef\u5904\u7406\u673a\u5236\u7684\u91cd\u8981\u6027\u4e0e\u5b9e\u8df5 <\/h4>\n<p> \u9519\u8bef\u5904\u7406\u673a\u5236\u53ef\u4ee5\u786e\u4fdd\u5f53\u901a\u4fe1\u94fe\u8def\u51fa\u73b0\u95ee\u9898\u65f6&#xff0c;\u7cfb\u7edf\u80fd\u591f\u53ca\u65f6\u53d1\u73b0\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u6062\u590d\u63aa\u65bd\u3002\u5728S7-200SMART\u4e2d&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u7a0b\u5e8f\u903b\u8f91\u6765\u76d1\u63a7\u901a\u4fe1\u72b6\u6001&#xff0c;\u5e76\u5728\u68c0\u6d4b\u5230\u9519\u8bef\u65f6\u6267\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u3002 <\/p>\n<p> \u4f8b\u5982&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u6765\u68c0\u6d4b\u548c\u5904\u7406\u9519\u8bef&#xff1a; <\/p>\n<p>MB_ERR_NUM ; \/\/ \u68c0\u67e5\u9519\u8bef\u53f7<br \/>\nIF MB_ERR_NUM &#061; 0 THEN<br \/>\n  \/\/ \u65e0\u9519\u8bef&#xff0c;\u7ee7\u7eed\u6267\u884c<br \/>\nELSE<br \/>\n  \/\/ \u5904\u7406\u9519\u8bef\u60c5\u51b5<br \/>\nEND_IF;<\/p>\n<h4> 5.2.2 \u901a\u4fe1\u8d85\u65f6\u7684\u5224\u65ad\u4e0e\u5904\u7406\u65b9\u6cd5 <\/h4>\n<p> \u901a\u4fe1\u8d85\u65f6\u6307\u7684\u662f\u5728\u9884\u5b9a\u7684\u65f6\u95f4\u5185\u6ca1\u6709\u63a5\u6536\u5230\u54cd\u5e94\u3002\u5728\u7f16\u5199\u901a\u4fe1\u7a0b\u5e8f\u65f6&#xff0c;\u5e94\u8be5\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4&#xff0c;\u5e76\u5728\u8d85\u65f6\u53d1\u751f\u65f6\u89e6\u53d1\u9884\u8bbe\u7684\u5904\u7406\u7a0b\u5e8f\u3002 <\/p>\n<p> \u4f8b\u5982&#xff0c;\u4f7f\u7528Modbus\u901a\u4fe1\u6307\u4ee4\u65f6&#xff0c;\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u8d85\u65f6\u53c2\u6570&#xff1a; <\/p>\n<p>MB_CLIENT(&#8230;, Timeout:&#061;T#5s); \/\/ \u8bbe\u7f6e5\u79d2\u7684\u8d85\u65f6\u65f6\u95f4<\/p>\n<p> \u5982\u679c\u57285\u79d2\u5185\u6ca1\u6709\u5b8c\u6210\u901a\u4fe1&#xff0c;\u76f8\u5e94\u7684\u9519\u8bef\u5904\u7406\u7a0b\u5e8f\u5c06\u88ab\u6267\u884c\u3002 <\/p>\n<h3> 5.3 \u5de5\u4e1a\u81ea\u52a8\u5316\u4e2dPLC\u4e0e\u5176\u4ed6\u8bbe\u5907\u7684\u901a\u4fe1\u5b9e\u73b0 <\/h3>\n<p> \u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d&#xff0c;PLC\u4e0d\u4ec5\u8981\u4e0e\u5176\u4ed6\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1&#xff0c;\u8fd8\u8981\u4fdd\u8bc1\u6570\u636e\u7684\u51c6\u786e\u6027\u548c\u5b9e\u65f6\u6027\u3002 <\/p>\n<h4> 5.3.1 \u5de5\u4e1a\u81ea\u52a8\u5316\u901a\u4fe1\u7684\u9700\u6c42\u5206\u6790 <\/h4>\n<p> \u5de5\u4e1a\u81ea\u52a8\u5316\u901a\u4fe1\u9700\u6c42\u901a\u5e38\u5305\u62ec\u9ad8\u5b9e\u65f6\u6027\u3001\u9ad8\u53ef\u9760\u6027\u548c\u6570\u636e\u4e00\u81f4\u6027\u3002PLC\u4f5c\u4e3a\u63a7\u5236\u4e2d\u5fc3&#xff0c;\u9700\u8981\u4e0e\u4f20\u611f\u5668\u3001\u6267\u884c\u5668\u3001HMI\u548c\u5176\u4ed6\u63a7\u5236\u5668\u8bbe\u5907\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002 <\/p>\n<h4> 5.3.2 S7-200SMART\u5728\u5de5\u4e1a\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u5b9e\u4f8b <\/h4>\n<p> \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u6e29\u5ea6\u63a7\u5236\u7cfb\u7edf&#xff0c;\u5176\u4e2d\u5305\u62ec\u6e29\u5ea6\u4f20\u611f\u5668\u3001\u52a0\u70ed\u5668\u548c\u51b7\u5374\u5668\u3002S7-200SMART PLC\u5c06\u4f5c\u4e3a\u4e2d\u5fc3\u8282\u70b9&#xff0c;\u901a\u8fc7Modbus TCP\u534f\u8bae\u4e0e\u6e29\u5ea6\u4f20\u611f\u5668\u8fdb\u884c\u5b9e\u65f6\u6570\u636e\u4ea4\u6362&#xff0c;\u6839\u636e\u9884\u8bbe\u7684\u6e29\u5ea6\u8303\u56f4\u6765\u63a7\u5236\u52a0\u70ed\u5668\u548c\u51b7\u5374\u5668\u7684\u5f00\u5173\u3002 <\/p>\n<p> \u5177\u4f53\u5b9e\u73b0\u53ef\u4ee5\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4&#xff1a; 1. \u4f7f\u7528S7-200SMART\u7684Modbus TCP\u529f\u80fd&#xff0c;\u914d\u7f6ePLC\u4e3aModbus\u670d\u52a1\u5668\u3002 2. \u5c06\u6e29\u5ea6\u4f20\u611f\u5668\u8fde\u63a5\u81f3PLC&#xff0c;\u5e76\u8fdb\u884c\u6570\u636e\u6620\u5c04\u3002 3. 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