{"id":19773,"date":"2025-04-19T02:22:20","date_gmt":"2025-04-18T18:22:20","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/19773.html"},"modified":"2025-04-19T02:22:20","modified_gmt":"2025-04-18T18:22:20","slug":"modbus-rtu%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/19773.html","title":{"rendered":"Modbus-RTU\u8be6\u89e3"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

Modbus-RTU\u534f\u8bae<\/p>\n

Modbus-RTU \u6838\u5fc3\u7279\u6027<\/p>\n

\u6570\u636e\u5e27\u683c\u5f0f<\/p>\n

\u5e27\u7ed3\u6784\u793a\u4f8b<\/p>\n

\u5e94\u7528\u573a\u666f\u4e0e\u793a\u4f8b<\/p>\n

1. PLC \u63a7\u5236\u7535\u673a\u542f\u505c<\/p>\n

2. \u8bfb\u53d6\u6e29\u5ea6\u4f20\u611f\u5668\u6570\u636e<\/p>\n

CRC16\u6821\u9a8c\u7b97\u6cd5<\/p>\n

CRC16\u7b97\u6cd5\u7684\u8fc7\u7a0b<\/p>\n

modbus-rtu\u7684\u4f7f\u7528<\/p>\n

\u53d1\u9001\u6570\u636e<\/p>\n

\u63a5\u6536\u6570\u636e<\/p>\n

tcp\u7f51\u53e3\u5b8c\u6574\u5b9e\u73b0modbus-rtu\u534f\u8bae<\/p>\n

Modbus-RTU\u548cModbus-TCP\u7684\u8d8b\u533a\u522b<\/p>\n

\u4f7f\u7528NModbus4\u5b9e\u73b0modbus-rtu\u534f\u8bae<\/p>\n

\u5b89\u88c5NModbus4\u5e93\u3002<\/p>\n

\u4e32\u53e3\u5b9e\u73b0NModbus4<\/p>\n

\n<\/p>\n

Modbus-RTU\u534f\u8bae<\/h2>\n

Modbus RTU \u534f\u8bae\u662f\u4e00\u79cd\u5f00\u653e\u7684\u4e32\u884c\u534f\u8bae，\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5f53\u4eca\u7684\u5de5\u4e1a\u76d1\u63a7\u8bbe\u5907\u4e2d\u3002\u8be5\u534f\u8bae\u4f7f\u7528 RS-232 \u6216 RS-485 \u4e32\u884c\u63a5\u53e3\u8fdb\u884c\u901a\u4fe1，\u5e76\u5f97\u5230\u5e02\u573a\u4e0a\u51e0\u4e4e\u6240\u6709\u5546\u4e1a SCADA\u3001HMI\u3001OPC \u670d\u52a1\u5668\u548c\u6570\u636e\u91c7\u96c6\u8f6f\u4ef6\u7a0b\u5e8f\u7684\u652f\u6301\u3002\u56e0\u6b64，\u5f88\u5bb9\u6613\u5c06 Modbus \u517c\u5bb9\u8bbe\u5907\u96c6\u6210\u5230\u65b0\u7684\u6216\u73b0\u6709\u7684\u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u4e2d，\u5e76\u5177\u6709\u5373\u65f6\u7684\u8f6f\u4ef6\u652f\u6301\u3002<\/p>\n

\n

Modbus-RTU \u6838\u5fc3\u7279\u6027<\/h4>\n\n\u7279\u6027\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n
\u4f20\u8f93\u65b9\u5f0f<\/td>\n\u4e8c\u8fdb\u5236\u6570\u636e\u4f20\u8f93（\u7d27\u51d1\u9ad8\u6548）<\/td>\n<\/tr>\n
\u7269\u7406\u63a5\u53e3<\/td>\nRS-485（\u591a\u8bbe\u5907\u603b\u7ebf）\u6216 RS-232（\u70b9\u5bf9\u70b9）<\/td>\n<\/tr>\n
\u6821\u9a8c\u65b9\u5f0f<\/td>\n\u5faa\u73af\u5197\u4f59\u6821\u9a8c（CRC-16），\u6821\u9a8c\u8303\u56f4\u5305\u62ec\u6574\u4e2a\u6570\u636e\u5e27<\/td>\n<\/tr>\n
\u4f20\u8f93\u6548\u7387<\/td>\n\u9ad8（\u65e0\u5b57\u7b26\u8f6c\u6362\u5f00\u9500）<\/td>\n<\/tr>\n
\u6700\u5927\u8bbe\u5907\u6570<\/td>\nRS-485 \u603b\u7ebf\u652f\u6301\u6700\u591a 32~247 \u4e2a\u8bbe\u5907（\u4f9d\u8d56\u9a71\u52a8\u80fd\u529b）<\/td>\n<\/tr>\n
\u5178\u578b\u5e94\u7528<\/td>\n\u5de5\u4e1a\u5b9e\u65f6\u63a7\u5236\u3001\u8bbe\u5907\u76d1\u63a7\u3001\u9ad8\u901f\u6570\u636e\u91c7\u96c6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u6570\u636e\u5e27\u683c\u5f0f<\/h4>\n

\u5e27\u7ed3\u6784：\u8bbe\u5907\u5730\u5740\u3001\u529f\u80fd\u7801\u3001\u6570\u636e\u548cCRC\u6821\u9a8c\u5b57\u6bb5\u3002<\/p>\n

\"\"<\/p>\n

\u5e38\u7528\u529f\u80fd\u7801：Modbus-RTU\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u5e38\u7528\u7684\u529f\u80fd\u7801，\u7528\u4e8e\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c，\u5982\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u5199\u5165\u5355\u4e2a\u5bc4\u5b58\u5668\u3001\u5199\u5165\u591a\u4e2a\u5bc4\u5b58\u5668\u7b49\u3002<\/p>\n

(1). \u529f\u80fd\u7801-0x03\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668：\u8be5\u529f\u80fd\u7801\u7528\u4e8e\u4ece\u8bbe\u5907\u4e2d\u8bfb\u53d6\u4e00\u4e2a\u6216\u591a\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c\u3002 (2). \u529f\u80fd\u7801-0x06\u5199\u5355\u4e2a\u5bc4\u5b58\u5668：\u8be5\u529f\u80fd\u7801\u7528\u4e8e\u5411\u8bbe\u5907\u4e2d\u5199\u5165\u4e00\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c\u3002 (3). \u529f\u80fd\u7801-0x10\u5199\u591a\u4e2a\u5bc4\u5b58\u5668：\u8be5\u529f\u80fd\u7801\u7528\u4e8e\u5411\u8bbe\u5907\u4e2d\u5199\u5165\u591a\u4e2a\u8fde\u7eed\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c\u3002<\/p>\n<\/p>\n

\u5e27\u7ed3\u6784\u793a\u4f8b<\/h4>\n

Modbus RTU \u529f\u80fd 01 \u7528\u4e8e\u4ece Modbus \u4ece\u7ad9\u6570\u636e\u91c7\u96c6\u8bbe\u5907\u8bfb\u53d6\u7ebf\u5708\u72b6\u6001\u6216\u6570\u5b57\u8f93\u51fa\u72b6\u6001\u3002\u8bf7\u53c2\u9605\u4e0b\u9762\u7684\u5178\u578b\u547d\u4ee4\u548c\u54cd\u5e94\u4ee5\u53ca\u4f7f\u7528\u8bf4\u660e\u3002<\/p>\n

\u00a0 \u00a0 \u4e3b\u673a\u53d1\u9001： \u00a001 03 00 00 00 01 84 0A \u00a0 \u00a0 \u4ece\u673a\u54cd\u5e94： \u00a001 03 02 19 98 B2 7E<\/p>\n

\u8be5\u4f8b\u5b50\u4e2d，\u4e3b\u673a\u53d1\u9001\u7684\u6570\u636e\u4e3a`\u5730\u5740 + \u529f\u80fd\u7801 + \u6570\u636e + \u6821\u9a8c`\u200b，CRC\u6821\u9a8c\u7801\u662f\u6839\u636e\u524d\u9762\u7684\u6570\u636e\u8ba1\u7b97\u5f97\u51fa\u7684<\/p>\n

\"\"<\/p>\n

\u56de\u590d\u7684\u6570\u636e\u683c\u5f0f<\/p>\n

\"\"<\/p>\n

\u200b<\/p>\n

\n

\u5e94\u7528\u573a\u666f\u4e0e\u793a\u4f8b<\/h4>\n

1. PLC \u63a7\u5236\u7535\u673a\u542f\u505c<\/h5>\n
    \n
  • \n

    \u8bf7\u6c42\u5e27（\u4e3b\u673a \u2192 \u4ece\u673a\u5730\u5740 0x02）： 02 05 00 01 FF 00 8C 09<\/p>\n

      \n
    • \n

      \u529f\u80fd\u7801\u00a00x05：\u5199\u5355\u4e2a\u7ebf\u5708\u3002<\/p>\n<\/li>\n

    • \n

      \u5730\u5740\u00a00x0001：\u7535\u673a\u63a7\u5236\u5bc4\u5b58\u5668\u3002<\/p>\n<\/li>\n

    • \n

      \u503c\u00a0FF 00：ON（FF00\u00a0\u8868\u793a ON，0000\u00a0\u8868\u793a OFF）\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      2. \u8bfb\u53d6\u6e29\u5ea6\u4f20\u611f\u5668\u6570\u636e<\/h5>\n
        \n
      • \n

        \u8bf7\u6c42\u5e27（\u4e3b\u673a \u2192 \u4ece\u673a\u5730\u5740 0x03）： 03 04 00 00 00 01 70 0B<\/p>\n

          \n
        • \n

          \u529f\u80fd\u7801\u00a00x04：\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u3002<\/p>\n<\/li>\n

        • \n

          \u5730\u5740\u00a00x0000：\u6e29\u5ea6\u4f20\u611f\u5668\u5bc4\u5b58\u5668\u3002<\/p>\n<\/li>\n

        • \n

          \u6570\u91cf\u00a00x0001：\u8bfb\u53d6 1 \u4e2a\u5bc4\u5b58\u5668\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

          \n

          CRC16\u6821\u9a8c\u7b97\u6cd5<\/h4>\n

          CRC\u5168\u79f0\u5faa\u73af\u5197\u4f59\u6821\u9a8c(Cyclic Redundancy Check， CRC)，\u662f\u901a\u4fe1\u9886\u57df\u6570\u636e\u4f20\u8f93\u6280\u672f\u4e2d\u5e38\u7528\u7684\u68c0\u9519\u65b9\u6cd5，\u7528\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n

          CRC\u6821\u9a8c\u7684\u57fa\u672c\u601d\u8def\u662f\u6570\u636e\u53d1\u9001\u65b9\u53d1\u9001\u6570\u636e\u4e4b\u524d，\u5148\u751f\u6210\u4e00\u4e2aCRC\u6821\u9a8c\u7801，\u53ef\u4ee5\u662f\u5355bit\u4e5f\u53ef\u4ee5\u662f\u591abit，\u5e76\u9644\u5728\u6709\u6548\u6570\u636e\u672b\u5c3e，\u4ee5\u4e32\u884c\u65b9\u5f0f\u53d1\u9001\u5230\u63a5\u6536\u65b9\u3002\u63a5\u6536\u65b9\u63a5\u6536\u5230\u6570\u636e\u540e，\u8fdb\u884cCRC\u6821\u9a8c，\u6839\u636e\u6821\u9a8c\u7ed3\u679c\u5c31\u53ef\u4ee5\u77e5\u9053\u6570\u636e\u662f\u5426\u6709\u8bef\u3002<\/p>\n

          CRC\u6821\u9a8c\u7801\u7684\u751f\u6210：\u5c06\u6709\u6548\u6570\u636e**\u6269\u5c55\u540e**\u4f5c\u4e3a\u88ab\u9664\u6570，\u4f7f\u7528\u4e00\u4e2a\u6307\u5b9a\u7684**\u591a\u9879\u5f0f**\u4f5c\u4e3a\u9664\u6570，\u8fdb\u884c\u6a21\u4e8c\u9664\u6cd5，\u5f97\u5230\u7684**\u4f59\u6570**\u5c31\u662f\u6821\u9a8c\u7801\u3002<\/p>\n

          \u6570\u636e\u63a5\u6536\u65b9\u7684CRC\u6821\u9a8c：\u5c06\u63a5\u53d7\u7684\u6570\u636e(**\u6709\u6548\u6570\u636e+CRC\u6821\u9a8c\u7801**)\u6269\u5c55\u540e\u4f5c\u4e3a\u88ab\u9664\u6570，\u7528\u6307\u5b9a\u7684\u591a\u9879\u5f0f\u4f5c\u4e3a\u9664\u6570，\u8fdb\u884c\u6a21\u4e8c\u9664\u6cd5，\u5f97\u5230**\u4f59\u6570\u4e3a0**，\u5219\u8868\u793a\u6821\u9a8c\u6b63\u786e\u3002<\/p>\n

          \u6211\u4eec\u4f7f\u7528\u4ee3\u7801\u5411\u8bbe\u5907\u53d1\u9001\u547d\u4ee4\u5e27\u65f6\u9700\u8981\u4f7f\u7528CRC\u7b97\u6cd5\u8ba1\u7b97\u6821\u9a8c\u503c，\u5f53\u8bbe\u5907\u54cd\u5e94\u6570\u636e\u65f6\u4f7f\u7528CRC\u7b97\u6cd5\u6821\u9a8c\u8be5\u6570\u636e\u662f\u5426\u6b63\u786e，<\/p>\n

          CRC16\u7b97\u6cd5\u7684\u8fc7\u7a0b<\/h5>\n

          1 \u521d\u59cb\u5316\u4e00\u4e2a16\u4f4d\u7684\u5bc4\u5b58\u5668\u5730\u5740 \u7528\u4f5c\u521d\u59cb\u503c 2 \u904d\u5386\u6570\u636e\u5b57\u8282，\u4ece\u6700\u9ad8\u4f4d\u5230\u6700\u4f4e\u4f4d，\u00a0 3 \u5c06\u6570\u636e\u5b57\u8282\u4e0e\u5bc4\u5b58\u5668\u5f02\u6216 4 \u5bf9\u5bc4\u5b58\u5668\u8fdb\u884c8\u6b21\u8fed\u4ee3，\u6bcf\u4e00\u6b21\u8fed\u4ee3\u5c06\u5bc4\u5b58\u5668\u53f3\u79fb\u4e00\u4f4d 5 \u5982\u679c\u6700\u4f4e\u4f4d\u4f4d1，\u5c06\u5bc4\u5b58\u5668\u4e0e\u751f\u6210\u591a\u9879\u5f0f0x8005\u5f02\u6216，\u5426\u5219\u53ea\u8fdb\u884c\u53f3\u79fb\u64cd\u4f5c 6 \u91cd\u590d\u4e0a\u8ff0\u6b65\u9aa4\u76f4\u5230\u904d\u5386\u5b8c\u6240\u6709\u7684\u5b57\u8282 7 \u6700\u7ec8\u5bc4\u5b58\u5668\u7684\u503c\u5c31\u662fcrc16\u6821\u9a8c\u7801 8 crc\u8ba1\u7b97\u4e4b\u540e\u9ad8\u4f4e\u4f4d\u8fdb\u884c\u4e92\u6362<\/p>\n

          \u4ee5\u4e0b\u662f\u5c01\u88c5\u7684CRC16\u6548\u9a8c\u7b97\u6cd5\u7c7b：<\/p>\n

          \u00a0 \u00a0 public static class CRC16
          \n\u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ CRC\u6821\u9a8c，\u53c2\u6570data\u4e3abyte\u6570\u7ec4
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <\/summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <param name="data">\u6821\u9a8c\u6570\u636e，\u5b57\u8282\u6570\u7ec4<\/param>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <returns>\u5b57\u82820\u662f\u9ad88\u4f4d，\u5b57\u82821\u662f\u4f4e8\u4f4d<\/returns>
          \n\u00a0 \u00a0 \u00a0 \u00a0 public static byte[] CRCCalc(byte[] data)
          \n\u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/crc\u8ba1\u7b97\u8d4b\u521d\u59cb\u503c
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 int crc = 0xffff;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (int i = 0; i < data.Length; i++)
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc = crc ^ data[i];
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (int j = 0; j < 8; j++)
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 int temp;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 temp = crc & 1;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc = crc >> 1;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc = crc & 0x7fff;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (temp == 1)
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc = crc ^ 0xa001;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc = crc & 0xffff;
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/CRC\u5bc4\u5b58\u5668\u7684\u9ad8\u4f4e\u4f4d\u8fdb\u884c\u4e92\u6362
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 byte[] crc16 = new byte[2];
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/CRC\u5bc4\u5b58\u5668\u7684\u9ad88\u4f4d\u53d8\u6210\u4f4e8\u4f4d，
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc16[1] = (byte)((crc >> 8) & 0xff);
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/CRC\u5bc4\u5b58\u5668\u7684\u4f4e8\u4f4d\u53d8\u6210\u9ad88\u4f4d
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 crc16[0] = (byte)(crc & 0xff);
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return crc16;
          \n\u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0\u00a0
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ CRC\u6821\u9a8c，\u53c2\u6570\u4e3a\u7a7a\u683c\u6216\u9017\u53f7\u95f4\u9694\u7684\u5b57\u7b26\u4e32
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <\/summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <param name="data">\u6821\u9a8c\u6570\u636e，\u9017\u53f7\u6216\u7a7a\u683c\u95f4\u9694\u768416\u8fdb\u5236\u5b57\u7b26\u4e32(\u5e26\u67090x\u62160X\u4e5f\u53ef\u4ee5),\u9017\u53f7\u4e0e\u7a7a\u683c\u4e0d\u80fd\u6df7\u7528<\/param>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <returns>\u5b57\u82820\u662f\u9ad88\u4f4d，\u5b57\u82821\u662f\u4f4e8\u4f4d<\/returns>
          \n\u00a0 \u00a0 \u00a0 \u00a0 public static byte[] CRCCalc(string data)
          \n\u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u5206\u9694\u7b26\u662f\u7a7a\u683c\u8fd8\u662f\u9017\u53f7\u8fdb\u884c\u5206\u7c7b，\u5e76\u53bb\u9664\u8f93\u5165\u5b57\u7b26\u4e32\u4e2d\u7684\u591a\u4f59\u7a7a\u683c
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 IEnumerable<string> datac = data.Contains(",") ? data.Replace(" ", "").Replace("0x", "").Replace("0X", "").Trim().Split(',') : data.Replace("0x", "").Replace("0X", "").Split(' ').ToList().Where(u => u != "");
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 List<byte> bytedata = new List<byte>();
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 foreach (string str in datac)
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 bytedata.Add(byte.Parse(str, System.Globalization.NumberStyles.AllowHexSpecifier));
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 byte[] crcbuf = bytedata.ToArray();
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/crc\u8ba1\u7b97\u8d4b\u521d\u59cb\u503c
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return CRCCalc(crcbuf);
          \n\u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0\u00a0
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ \u00a0CRC\u6821\u9a8c，\u622a\u53d6data\u4e2d\u7684\u4e00\u6bb5\u8fdb\u884cCRC16\u6821\u9a8c
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <\/summary>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <param name="data">\u6821\u9a8c\u6570\u636e，\u5b57\u8282\u6570\u7ec4<\/param>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <param name="offset">\u4ece\u5934\u5f00\u59cb\u504f\u79fb\u51e0\u4e2abyte<\/param>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <param name="length">\u504f\u79fb\u540e\u53d6\u51e0\u4e2a\u5b57\u8282byte<\/param>
          \n\u00a0 \u00a0 \u00a0 \u00a0 \/\/\/ <returns>\u5b57\u82820\u662f\u9ad88\u4f4d，\u5b57\u82821\u662f\u4f4e8\u4f4d<\/returns>
          \n\u00a0 \u00a0 \u00a0 \u00a0 public static byte[] CRCCalc(byte[] data, int offset, int length)
          \n\u00a0 \u00a0 \u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 byte[] Tdata = data.Skip(offset).Take(length).ToArray();
          \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return CRCCalc(Tdata);
          \n\u00a0 \u00a0 \u00a0 \u00a0 }
          \n\u00a0 \u00a0 } <\/p>\n

          \n<\/p>\n

          modbus-rtu\u7684\u4f7f\u7528<\/h3>\n

          \u53d1\u9001\u6570\u636e<\/h4>\n

          \u73b0\u8981\u8bfb\u53d6\u53d8\u9001\u5668\u8bbe\u5907（\u5730\u5740 0x01）\u7684\u98ce\u901f\u503c，\u6587\u6863\u5982\u56fe\u6240\u793a<\/p>\n

          \"\"<\/p>\n

          \u6211\u4eec\u53d1\u9001\u7684\u547d\u4ee4\u5e27\u5e94\u4e3a<\/p>\n

          \"\"<\/p>\n

          \u6839\u636e\u547d\u4ee4\u5e27\u8ba1\u7b97\u6821\u9a8c\u7801（3\u79cd\u65b9\u5f0f）<\/p>\n

          \u00a0 \u00a0 byte[] buffer = new byte[] { 0x01, 0x03, 0x00, 0x00, 0x00, 0x01 };
          \n\u00a0 \u00a0 byte[] crc16 = CRC16.CRCCalc(buffer); \u00a0\/\/ \u6839\u636e\u5b57\u8282\u6570\u7ec4\u8ba1\u7b97
          \n\u00a0 \u00a0 Console.WriteLine($"{crc16[0]:X2} {crc16[1]:X2}");
          \n\u00a0 \u00a0\u00a0
          \n\u00a0 \u00a0 string data1 = "0x01,0x03,0x00,0x00,0x00,0x02";
          \n\u00a0 \u00a0 string data1 = "0x01 0x03 0x00 0x00 0x00 0x02";
          \n\u00a0 \u00a0 byte[] crc16 = CRC16.CRCCalc(data1); \u00a0 \u00a0\/\/ \u6839\u636e\u5b57\u7b26\u4e32\u8ba1\u7b97
          \n\u00a0 \u00a0 Console.WriteLine($"{crc16[0]:X2} {crc16[1]:X2}");
          \n\u00a0 \u00a0\u00a0
          \n\u00a0 \u00a0 \u00a0byte[] buffer = new byte[] { 0x01, 0x03, 0x00, 0x00, 0x00, 0x02, 0xC4, 0x0B };
          \n\u00a0 \u00a0 \u00a0byte[] crc16 = CRC16Calc(buffer,0,6); \u00a0\/\/ \u4ece\u5b57\u8282\u6570\u7ec4\u4e2d\u622a\u53d6\u67d0\u90e8\u5206\u8ba1\u7b97
          \n\u00a0 \u00a0 \u00a0Console.WriteLine($"{crc16[0]:X2} {crc16[1]:X2}"); <\/p>\n

          \u5c06\u6570\u636e\u548c\u6821\u9a8c\u7801\u6570\u7ec4\u8fdb\u884c\u5408\u5e76\u7136\u540e\u53d1\u9001<\/p>\n

          \u00a0 \u00a0 byte[] buffer = new byte[] { 0x01, 0x03, 0x00, 0x00, 0x00, 0x01 };
          \n\u00a0 \u00a0 byte[] crc16 = CRC16.CRCCalc(buffer);
          \n\u00a0 \u00a0 byte[] data = buffer.Concat(crc16).ToArray();
          \n\u00a0 \u00a0 serialPort.Write(data, 0, data.Length); <\/p>\n<\/p>\n

          \u63a5\u6536\u6570\u636e<\/h4>\n

          \u6211\u4eec\u5c06\u547d\u4ee4\u5e27（\u8bf7\u6c42\u5e27\u3001\u95ee\u8be2\u7801）\u53d1\u9001\u540e，\u5982\u679c\u6ca1\u6709\u9519\u8bef，\u4ece\u8bbe\u5907\u4f1a\u8fd4\u56de\u5bf9\u5e94\u7684\u6570\u636e，\u5982\u4e0b\u8bfb\u53d6\u53d8\u9001\u5668\u8bbe\u5907（\u5730\u5740 0x01）\u7684\u5b9e\u65f6\u98ce\u529b\u7b49\u7ea7\u503c，\u5c06\u4f1a\u8fd4\u56de\u5982\u56fe\u6240\u793a\u7684\u6570\u636e，\u6211\u4eec\u9700\u8981\u5c06\u6570\u636e\u8bfb\u53d6\u3001\u6821\u9a8c\u3001\u8ba1\u7b97\u3001\u5c55\u793a<\/p>\n

          \"\"<\/p>\n

          \u00a0 \u00a0 \/\/ \u5047\u8bbe\u8fd9\u662f\u4ece\u8bbe\u5907\u54cd\u5e94\u7684\u6570\u636e
          \n\u00a0 \u00a0 \/\/ 0x01：\u8bbe\u5907\u5730\u5740\u7801
          \n\u00a0 \u00a0 \/\/ 0x03：\u529f\u80fd\u7801
          \n\u00a0 \u00a0 \/\/ 0x02：\u8bfb\u53d6\u5230\u7684\u6570\u636e\u5b57\u8282
          \n\u00a0 \u00a0 \/\/ 0x00, 0x01：\u5f53\u524d\u98ce\u529b\u7b49\u7ea7
          \n\u00a0 \u00a0 \/\/ 0x79, 0x84：\u6821\u9a8c\u7801
          \n\u00a0 \u00a0 byte[] value = new byte[] { 0x01, 0x03, 0x02, 0x00, 0x01, 0x79, 0x84 };
          \n\u00a0 \u00a0 \/\/ 1\u3001\u9a8c\u8bc1\u6821\u9a8c\u7801\u662f\u5426\u6b63\u786e
          \n\u00a0 \u00a0 byte[] crc = CRC16.CRCCalc(value, 0, value.Length – 2);
          \n\u00a0 \u00a0 if (crc[0] != value[value.Length – 2] || crc[1] != value[value.Length-1] ) {
          \n\u00a0 \u00a0 \u00a0 \u00a0 MessageBox.Show("\u6570\u636e\u6821\u9a8c\u9519\u8bef，\u5e94\u5ffd\u7565");
          \n\u00a0 \u00a0 \u00a0 \u00a0 return;
          \n\u00a0 \u00a0 }
          \n\u00a0 \u00a0 \/\/ 2\u3001\u9a8c\u8bc1\u8bbe\u5907\u5730\u5740
          \n\u00a0 \u00a0 if (value[0] != \u00a00x01)
          \n\u00a0 \u00a0 {
          \n\u00a0 \u00a0 \u00a0 \u00a0 MessageBox.Show("\u8bbe\u5907\u5730\u5740\u4e0d\u6b63\u786e");
          \n\u00a0 \u00a0 \u00a0 \u00a0 return;
          \n\u00a0 \u00a0 }
          \n\u00a0 \u00a0 \/\/ 3\u3001\u8ba1\u7b97\u6570\u636e
          \n\u00a0 \u00a0 \/\/ int v = value[3] * 256 + value[4]; \u00a0\/\/ \u56e0\u4e3a\u8fd9\u4e2a\u6570\u636e\u5360\u4e24\u4e2a\u5b57\u8282，\u6bcf\u4e2a\u5b57\u8282\u6700\u5927255，\u76f8\u5f53\u4e8e256\u8fdb\u5236，\u8f6c\u6362\u4e3a10\u8fdb\u5236
          \n\u00a0 \u00a0 int v = (value[3] << 8) + value[4]; \u00a0 \u00a0 \u00a0 \/\/ \u4e5f\u53ef\u4ee5\u4f7f\u7528\u5de6\u79fb\u8fd0\u7b97\u7b26，\u9ad8\u4f4d\u5de6\u79fb8\u4f4d，\u76f8\u5f53\u4e8e\u4e582\u76848\u6b21\u65b9
          \n\u00a0 \u00a0\u00a0
          \n\u00a0 \u00a0 \/\/ 4\u3001\u6570\u636e\u5c55\u793a
          \n\u00a0 \u00a0 MessageBox.Show("\u98ce\u529b\u7b49\u7ea7：" + v); <\/p>\n<\/p>\n

          tcp\u7f51\u53e3\u5b8c\u6574\u5b9e\u73b0modbus-rtu\u534f\u8bae<\/h4>\n

          public partial class Form1 : Form
          \n{
          \n \/\/\/ <summary>
          \n \/\/\/ \u5957\u63a5\u5b57
          \n \/\/\/ <\/summary>
          \n Socket socket;<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ IP\u5730\u5740
          \n \/\/\/ <\/summary>
          \n string Ip = "192.168.107.5";<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u7aef\u53e3
          \n \/\/\/ <\/summary>
          \n string Dk = "8016";<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u547d\u4ee4\u5e27
          \n \/\/\/ <\/summary>
          \n string Icommand = "01 03 00 00 00 02";<\/p>\n

          public Form1()
          \n {
          \n InitializeComponent();
          \n button1.Enabled = false;
          \n checkBox1.Enabled = false;
          \n }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u6253\u5f00\u8fde\u63a5
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="sender"><\/param>
          \n \/\/\/ <param name="e"><\/param>
          \n private void button2_Click(object sender, EventArgs e)
          \n {
          \n if (button2.Text == "\u8fde\u63a5\u7f51\u53e3")
          \n {
          \n try
          \n {
          \n socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
          \n socket.Connect(Ip, int.Parse(Dk));<\/p>\n

          button1.Enabled = true;
          \n checkBox1.Enabled = true;
          \n button2.Text = "\u65ad\u5f00";
          \n this.timer1.Start();
          \n }
          \n catch (Exception ex)
          \n {
          \n MessageBox.Show(ex.Message);
          \n }
          \n }
          \n else
          \n {
          \n if (socket == null) return;
          \n socket.Close();
          \n button1.Enabled = false;
          \n checkBox1.Enabled = false;
          \n checkBox1.Checked = false;
          \n button2.Text = "\u8fde\u63a5\u7f51\u53e3";
          \n this.timer1.Stop();
          \n }<\/p>\n

          }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u5237\u65b0\u98ce\u901f\u98ce\u5411\u6570\u636e
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="sender"><\/param>
          \n \/\/\/ <param name="e"><\/param>
          \n private async void button1_Click(object sender, EventArgs e)
          \n {
          \n byte[] bs = new byte[1024];
          \n bs = StringToByte(Icommand);
          \n byte[] bb = CRCCalc(bs);
          \n bs = bs.Concat(bb).ToArray();
          \n await Task.Run(() =>
          \n {
          \n socket.Send(bs); \/\/ \u53d1\u9001\u8bf7\u6c42\u5e27<\/p>\n

          byte[] body = new byte[1024];
          \n int length = socket.Receive(body); \/\/ \u83b7\u53d6\u54cd\u5e94\u5e27<\/p>\n

          double value = (body[3] * 256+ body[4]) *0.01;
          \n double value2 = (body[5] * 256 + body[6]);
          \n this.Invoke(new Action(() =>
          \n {
          \n this.textBox1.Text = value.ToString() + "m\/s";
          \n this.textBox2.Text = value2.ToString();
          \n }));<\/p>\n

          });<\/p>\n

          }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u5b57\u7b26\u4e32\u8f6c\u5b57\u8282
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="s"><\/param>
          \n \/\/\/ <returns><\/returns>
          \n byte[] StringToByte(string s)
          \n {
          \n string[] strings = s.Split(' ') ;
          \n byte[] bs = new byte[strings.Length];
          \n for (int i = 0; i < strings.Length; i++)
          \n {
          \n bs[i] = Convert.ToByte(strings[i],16);
          \n }
          \n return bs;
          \n }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ CRC\u6548\u9a8c
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="data"><\/param>
          \n \/\/\/ <returns><\/returns>
          \n public static byte[] CRCCalc(byte[] data)
          \n {
          \n \/\/crc\u8ba1\u7b97\u8d4b\u521d\u59cb\u503c
          \n int crc = 0xffff;
          \n for (int i = 0; i < data.Length; i++)
          \n {
          \n \/\/XOR
          \n \/\/(1) 0^0=0,0^1=1 0\u5f02\u6216\u4efb\u4f55\u6570＝\u4efb\u4f55\u6570
          \n \/\/(2) 1 ^ 0 = 1,1 ^ 1 = 0 1\u5f02\u6216\u4efb\u4f55\u6570－\u4efb\u4f55\u6570\u53d6\u53cd
          \n \/\/(3) 1 ^ 1 = 0,0 ^ 0 = 0 \u4efb\u4f55\u6570\u5f02\u6216\u81ea\u5df1＝\u628a\u81ea\u5df1\u7f6e0
          \n \/\/\u5f02\u6216\u64cd\u4f5c\u7b26\u662f^\u3002\u5f02\u6216\u7684\u7279\u70b9\u662f\u76f8\u540c\u4e3afalse，\u4e0d\u540c\u4e3atrue\u3002
          \n crc = crc ^ data[i]; \/\/\u548c^\u8868\u793a\u6309\u4f4d\u5f02\u6216\u8fd0\u7b97\u3002
          \n \/\/0x0fff ^ 0x01 Console.WriteLine(result.ToString("X"));
          \n \/\/ \u8f93\u51fa\u7ed3\u679c\u4e3a4094，\u5373\u5341\u516d\u8fdb\u5236\u65701001
          \n for (int j = 0; j < 8; j++)
          \n {
          \n int temp;
          \n temp = crc & 1; \/\/ & \u8fd0\u7b97\u7b26(\u4e0e) 1 & 0 \u4e3a 0 ;0 & 0 \u4e3a0;1 & 1 \u4e3a1<\/p>\n

          \/\/\u53f3\u79fb (>>) \u5c06\u7b2c\u4e00\u4e2a\u64cd\u4f5c\u6570\u5411\u53f3\u79fb\u52a8\u7b2c\u4e8c\u4e2a\u64cd\u4f5c\u6570\u6240\u6307\u5b9a\u7684\u4f4d\u6570，\u7a7a\u51fa\u7684\u4f4d\u7f6e\u88650\u3002\u53f3\u79fb\u76f8\u5f53\u4e8e\u6574\u9664. \u53f3\u79fb\u4e00\u4f4d\u76f8\u5f53\u4e8e\u9664\u4ee52;\u53f3\u79fb\u4e24\u4f4d\u76f8\u5f53\u4e8e\u9664\u4ee54;\u53f3\u79fb\u4e09\u4f4d\u76f8\u5f53\u4e8e\u9664\u4ee58\u3002
          \n \/\/int i = 7;
          \n \/\/int j = 2;
          \n \/\/Console.WriteLine(i >> j); \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a1
          \n crc = crc >> 1;
          \n crc = crc & 0x7fff;
          \n if (temp == 1)
          \n {
          \n crc = crc ^ 0xa001;
          \n }
          \n crc = crc & 0xffff;
          \n }
          \n }
          \n \/\/CRC\u5bc4\u5b58\u5668\u7684\u9ad8\u4f4e\u4f4d\u8fdb\u884c\u4e92\u6362
          \n byte[] crc16 = new byte[2];
          \n \/\/CRC\u5bc4\u5b58\u5668\u7684\u9ad88\u4f4d\u53d8\u6210\u4f4e8\u4f4d，
          \n crc16[1] = (byte)((crc >> 8) & 0xff);
          \n \/\/CRC\u5bc4\u5b58\u5668\u7684\u4f4e8\u4f4d\u53d8\u6210\u9ad88\u4f4d
          \n crc16[0] = (byte)(crc & 0xff);
          \n return crc16;
          \n }
          \n} <\/p>\n

          \n<\/p>\n

          Modbus-RTU\u548cModbus-TCP\u7684\u8d8b\u533a\u522b<\/h3>\n\n\u7279\u6027Modbus-RTUModbus-TCP<\/tr>\n\n\n\n\n\n\n
          \u7269\u7406\u5c42<\/td>\nRS-485\/RS-232<\/td>\n\u4ee5\u592a\u7f51（RJ45）<\/td>\n<\/tr>\n
          \u4f20\u8f93\u901f\u7387<\/td>\n\u6700\u9ad8 115.2 kbps<\/td>\n100 Mbps ~ 1 Gbps<\/td>\n<\/tr>\n
          \u62d3\u6251\u7ed3\u6784<\/td>\n\u603b\u7ebf\u578b<\/td>\n\u661f\u578b\/\u6811\u578b\/\u7f51\u72b6<\/td>\n<\/tr>\n
          \u5b9e\u65f6\u6027<\/td>\n\u9ad8（\u786e\u5b9a\u6027\u5ef6\u8fdf）<\/td>\n\u4f9d\u8d56\u7f51\u7edc\u72b6\u51b5<\/td>\n<\/tr>\n
          \u6269\u5c55\u6027<\/td>\n\u6709\u9650（\u53d7\u603b\u7ebf\u957f\u5ea6\u9650\u5236）<\/td>\n\n

          \u9ad8（\u652f\u6301\u8de8\u7f51\u6bb5\u901a\u4fe1）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \n<\/p>\n

          \u4f7f\u7528NModbus4\u5b9e\u73b0modbus-rtu\u534f\u8bae<\/h3>\n

          NModbus4\u662f\u4e00\u4e2aC#\u5b9e\u73b0\u7684Modbus\u5e93，\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u4ee5Modbus RTU\u7684\u65b9\u5f0f\u4e0e\u5de5\u4e1a\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

          \u5b89\u88c5NModbus4\u5e93\u3002<\/h4>\n

          \u901a\u8fc7NuGet\u5b89\u88c5NModbus4<\/p>\n

          \"\"<\/p>\n

          \u4e32\u53e3\u5b9e\u73b0NModbus4<\/h4>\n

          public partial class Form1 : Form
          \n{
          \n \/\/ \u521b\u5efa\u5bf9\u8c61
          \n ModbusSerialMaster master;
          \n public Form1()
          \n {
          \n InitializeComponent();
          \n this.serialPort1.PortName = "COM2"; \/\/ \u4e32\u53e3\u540d
          \n this.serialPort1.BaudRate = 9600;
          \n this.serialPort1.DataBits = 8;
          \n this.serialPort1.Parity =System.IO.Ports.Parity.None;
          \n this.serialPort1.StopBits = System.IO.Ports.StopBits.One;<\/p>\n

          serialPort1.Open();
          \n master = ModbusSerialMaster.CreateRtu(serialPort1);
          \n }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u8bfb\u53d6\u6570\u636e
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="sender"><\/param>
          \n \/\/\/ <param name="e"><\/param>
          \n private async void button1_Click(object sender, EventArgs e)
          \n {
          \n \/\/ ReadHoldingRegistersAsync \u5f02\u6b65\u8bfb\u53d6\u6570\u636e
          \n \/\/ await \u7b49\u5f85\u5f02\u6b65\u4efb\u52a1\u6267\u884c\u5b8c\u4e4b\u540e \u518d\u5f80\u4e0b\u6267\u884c
          \n \/\/ \u53c2\u65701 \u4ece\u7ad9\u5730\u5740， \u53c2\u65702 \u8d77\u59cb\u5730\u5740 \u53c2\u65703：\u5bc4\u5b58\u5668\u4e2a\u6570
          \n \/\/ values \u5143\u7d20\u4e2a\u6570\u548c\u5bc4\u5b58\u5668\u4e2a\u6570\u6709\u5173
          \n ushort[] values = await master.ReadHoldingRegistersAsync(1,0×00,3);
          \n comboBox1.DataSource = values;
          \n }<\/p>\n

          \/\/\/ <summary>
          \n \/\/\/ \u5199\u5165\u6570\u636e
          \n \/\/\/ <\/summary>
          \n \/\/\/ <param name="sender"><\/param>
          \n \/\/\/ <param name="e"><\/param>
          \n private async void button2_Click(object sender, EventArgs e)
          \n {
          \n \/\/ \u5199\u5165 \u5355\u4e2a\u7684\u5bc4\u5b58\u5668
          \n \/\/ \u53c2\u65701 \u4ece\u7ad9\u5730\u5740
          \n \/\/ \u53c2\u65702 \u5199\u5165\u7684\u5730\u5740
          \n \/\/ \u53c2\u65703 \u5199\u5165\u7684\u6570\u636e
          \n \/\/ short \u77ed\u6574\u578b
          \n \/\/ ushort \u65e0\u7b26\u53f7\u7684\u77ed\u6574\u578b
          \n await master.WriteSingleRegisterAsync(1,0×04,14);
          \n }
          \n} <\/p>\n<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

          \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.7w\u6b21\uff0c\u70b9\u8d5e70\u6b21\uff0c\u6536\u85cf94\u6b21\u3002Modbus RTU \u534f\u8bae\u662f\u4e00\u79cd\u5f00\u653e\u7684\u4e32\u884c\u534f\u8bae\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5f53\u4eca\u7684\u5de5\u4e1a\u76d1\u63a7\u8bbe\u5907\u4e2d\u3002\u8be5\u534f\u8bae\u4f7f\u7528 RS-232 \u6216 RS-485 \u4e32\u884c\u63a5\u53e3\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u5f97\u5230\u5e02\u573a\u4e0a\u51e0\u4e4e\u6240\u6709\u5546\u4e1a SCADA\u3001HMI\u3001OPC \u670d\u52a1\u5668\u548c\u6570\u636e\u91c7\u96c6\u8f6f\u4ef6\u7a0b\u5e8f\u7684\u652f\u6301\u3002\u56e0\u6b64\uff0c\u5f88\u5bb9\u6613\u5c06 Modbus \u517c\u5bb9\u8bbe\u5907\u96c6\u6210\u5230\u65b0\u7684\u6216\u73b0\u6709\u7684\u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5e76\u5177\u6709\u5373\u65f6\u7684\u8f6f\u4ef6\u652f\u6301\u3002\u5e27\u7ed3\u6784\uff1a\u8bbe\u5907\u5730\u5740\u3001\u529f\u80fd\u7801\u3001\u6570\u636e\u548cCRC\u6821\u9a8c\u5b57\u6bb5\u3002\u5e38\u7528\u529f\u80fd\u7801\uff1aModbus-RTU\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u5e38\u7528\u7684\u529f\u80fd\u7801\uff0c\u7528\u4e8e\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u5982\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u5199\u5165\u5355\u4e2a\u5bc4\u5b58\u5668\u3001\u5199\u5165\u591a\u4e2a\u5bc4\u5b58\u5668\u7b49\u3002_modbus rtu<\/p>\n","protected":false},"author":2,"featured_media":19766,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1537,205,43,78,191],"topic":[],"class_list":["post-19773","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-modbus","tag-tcp-ip","tag-43","tag-78","tag-191"],"yoast_head":"\nModbus-RTU\u8be6\u89e3 - \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\/19773.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modbus-RTU\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.7w\u6b21\uff0c\u70b9\u8d5e70\u6b21\uff0c\u6536\u85cf94\u6b21\u3002Modbus RTU \u534f\u8bae\u662f\u4e00\u79cd\u5f00\u653e\u7684\u4e32\u884c\u534f\u8bae\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5f53\u4eca\u7684\u5de5\u4e1a\u76d1\u63a7\u8bbe\u5907\u4e2d\u3002\u8be5\u534f\u8bae\u4f7f\u7528 RS-232 \u6216 RS-485 \u4e32\u884c\u63a5\u53e3\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u5f97\u5230\u5e02\u573a\u4e0a\u51e0\u4e4e\u6240\u6709\u5546\u4e1a SCADA\u3001HMI\u3001OPC \u670d\u52a1\u5668\u548c\u6570\u636e\u91c7\u96c6\u8f6f\u4ef6\u7a0b\u5e8f\u7684\u652f\u6301\u3002\u56e0\u6b64\uff0c\u5f88\u5bb9\u6613\u5c06 Modbus \u517c\u5bb9\u8bbe\u5907\u96c6\u6210\u5230\u65b0\u7684\u6216\u73b0\u6709\u7684\u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5e76\u5177\u6709\u5373\u65f6\u7684\u8f6f\u4ef6\u652f\u6301\u3002\u5e27\u7ed3\u6784\uff1a\u8bbe\u5907\u5730\u5740\u3001\u529f\u80fd\u7801\u3001\u6570\u636e\u548cCRC\u6821\u9a8c\u5b57\u6bb5\u3002\u5e38\u7528\u529f\u80fd\u7801\uff1aModbus-RTU\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u5e38\u7528\u7684\u529f\u80fd\u7801\uff0c\u7528\u4e8e\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u5982\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u5199\u5165\u5355\u4e2a\u5bc4\u5b58\u5668\u3001\u5199\u5165\u591a\u4e2a\u5bc4\u5b58\u5668\u7b49\u3002_modbus rtu\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/19773.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-18T18:22:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418182218-6802985a33e34.png\" \/>\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=\"6 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/19773.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/19773.html\",\"name\":\"Modbus-RTU\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2025-04-18T18:22:20+00:00\",\"dateModified\":\"2025-04-18T18:22:20+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/19773.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/19773.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/19773.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Modbus-RTU\u8be6\u89e3\"}]},{\"@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":"Modbus-RTU\u8be6\u89e3 - \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\/19773.html","og_locale":"zh_CN","og_type":"article","og_title":"Modbus-RTU\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.7w\u6b21\uff0c\u70b9\u8d5e70\u6b21\uff0c\u6536\u85cf94\u6b21\u3002Modbus RTU \u534f\u8bae\u662f\u4e00\u79cd\u5f00\u653e\u7684\u4e32\u884c\u534f\u8bae\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5f53\u4eca\u7684\u5de5\u4e1a\u76d1\u63a7\u8bbe\u5907\u4e2d\u3002\u8be5\u534f\u8bae\u4f7f\u7528 RS-232 \u6216 RS-485 \u4e32\u884c\u63a5\u53e3\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u5f97\u5230\u5e02\u573a\u4e0a\u51e0\u4e4e\u6240\u6709\u5546\u4e1a SCADA\u3001HMI\u3001OPC \u670d\u52a1\u5668\u548c\u6570\u636e\u91c7\u96c6\u8f6f\u4ef6\u7a0b\u5e8f\u7684\u652f\u6301\u3002\u56e0\u6b64\uff0c\u5f88\u5bb9\u6613\u5c06 Modbus \u517c\u5bb9\u8bbe\u5907\u96c6\u6210\u5230\u65b0\u7684\u6216\u73b0\u6709\u7684\u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5e76\u5177\u6709\u5373\u65f6\u7684\u8f6f\u4ef6\u652f\u6301\u3002\u5e27\u7ed3\u6784\uff1a\u8bbe\u5907\u5730\u5740\u3001\u529f\u80fd\u7801\u3001\u6570\u636e\u548cCRC\u6821\u9a8c\u5b57\u6bb5\u3002\u5e38\u7528\u529f\u80fd\u7801\uff1aModbus-RTU\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u5e38\u7528\u7684\u529f\u80fd\u7801\uff0c\u7528\u4e8e\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u5982\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u5199\u5165\u5355\u4e2a\u5bc4\u5b58\u5668\u3001\u5199\u5165\u591a\u4e2a\u5bc4\u5b58\u5668\u7b49\u3002_modbus rtu","og_url":"https:\/\/www.wsisp.com\/helps\/19773.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2025-04-18T18:22:20+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418182218-6802985a33e34.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"6 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/19773.html","url":"https:\/\/www.wsisp.com\/helps\/19773.html","name":"Modbus-RTU\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2025-04-18T18:22:20+00:00","dateModified":"2025-04-18T18:22:20+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/19773.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/19773.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/19773.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"Modbus-RTU\u8be6\u89e3"}]},{"@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\/19773","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=19773"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/19773\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/19766"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=19773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=19773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=19773"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=19773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}