{"id":70339,"date":"2026-02-01T20:05:21","date_gmt":"2026-02-01T12:05:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/70339.html"},"modified":"2026-02-01T20:05:21","modified_gmt":"2026-02-01T12:05:21","slug":"modbuslink-%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%bd%bf%e7%94%a8%e8%af%b4%e6%98%8e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/70339.html","title":{"rendered":"ModbusLink \u670d\u52a1\u5668\u4f7f\u7528\u8bf4\u660e"},"content":{"rendered":"

📚 ModbusLink \u670d\u52a1\u5668\u4f7f\u7528\u8bf4\u660e<\/h2>\n

\u672c\u6587\u6863\u8be6\u7ec6\u4ecb\u7ecd\u4e86 ModbusLink \u8f6f\u4ef6\u5305\u4e2d\u670d\u52a1\u5668\u7ec4\u4ef6\u7684\u4f7f\u7528\u65b9\u6cd5\u3002ModbusLink \u7684\u670d\u52a1\u5668\u57fa\u4e8e\u5f02\u6b65 IO (asyncio) \u6784\u5efa，\u80fd\u591f\u9ad8\u6548\u5730\u5904\u7406\u5e76\u53d1\u8fde\u63a5（TCP）\u6216\u5feb\u901f\u54cd\u5e94\u4e32\u53e3\u8bf7\u6c42（RTU\/ASCII），\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5f00\u53d1\u865a\u62df\u4ece\u7ad9\u8bbe\u5907\u3001\u786c\u4ef6\u4eff\u771f\u5668\u6216\u7f51\u5173\u5e94\u7528\u3002<\/p>\n

\n

1. \u6838\u5fc3\u6982\u5ff5：\u6570\u636e\u5b58\u50a8 (ModbusDataStore)<\/h3>\n

\u6240\u6709 Modbus \u670d\u52a1\u5668\u7684\u6838\u5fc3\u90fd\u662f ModbusDataStore\u3002\u5b83\u4ee3\u8868\u4e86\u8bbe\u5907\u7684\u5185\u5b58\u6620\u5c04，\u8d1f\u8d23\u5b58\u50a8\u7ebf\u5708\u3001\u79bb\u6563\u8f93\u5165\u548c\u5bc4\u5b58\u5668\u7684\u503c\u3002\u670d\u52a1\u5668\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u8bf7\u6c42\u540e，\u4f1a\u81ea\u52a8\u8bfb\u5199\u8fd9\u4e2a\u5bf9\u8c61\u4e2d\u7684\u6570\u636e\u3002<\/p>\n

1.1 \u521d\u59cb\u5316\u4e0e\u5185\u5b58\u533a\u57df<\/h4>\n

\u5728\u521b\u5efa\u670d\u52a1\u5668\u4e4b\u524d，\u5fc5\u987b\u5148\u5b9e\u4f8b\u5316\u6570\u636e\u5b58\u50a8，\u5e76\u5b9a\u4e49\u5404\u5185\u5b58\u533a\u57df\u7684\u5927\u5c0f\u3002<\/p>\n

from<\/span> modbuslink import<\/span> ModbusDataStore<\/p>\n

# \u521d\u59cb\u5316\u6570\u636e\u5b58\u50a8，\u5b9a\u4e49\u56db\u4e2a\u6807\u51c6 Modbus \u533a\u57df\u7684\u5927\u5c0f<\/span>
\nstore =<\/span> ModbusDataStore(<\/span>
\n coils_size=<\/span>1000<\/span>,<\/span> # 0x: \u7ebf\u5708 (Read\/Write)<\/span>
\n discrete_inputs_size=<\/span>1000<\/span>,<\/span> # 1x: \u79bb\u6563\u8f93\u5165 (Read Only)<\/span>
\n holding_registers_size=<\/span>1000<\/span>,<\/span> # 4x: \u4fdd\u6301\u5bc4\u5b58\u5668 (Read\/Write)<\/span>
\n input_registers_size=<\/span>1000<\/span> # 3x: \u8f93\u5165\u5bc4\u5b58\u5668 (Read Only)<\/span>
\n)<\/span><\/p>\n

1.2 \u5185\u90e8\u8bfb\u5199\u64cd\u4f5c<\/h4>\n

\u670d\u52a1\u5668\u7a0b\u5e8f\u672c\u8eab\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u521d\u59cb\u5316\u6216\u66f4\u65b0\u6570\u636e（\u4f8b\u5982\u6a21\u62df\u4f20\u611f\u5668\u53d8\u5316）\u3002<\/p>\n\n\u533a\u57df\u5199\u5165\u65b9\u6cd5\u8bfb\u53d6\u65b9\u6cd5\u53c2\u6570\u8bf4\u660e<\/tr>\n\n\n\n\n\n
\u7ebf\u5708<\/td>\nwrite_coils<\/td>\nread_coils<\/td>\naddress: \u8d77\u59cb\u5730\u5740values: List[bool] \/ count<\/td>\n<\/tr>\n
\u79bb\u6563\u8f93\u5165<\/td>\nwrite_discrete_inputs<\/td>\nread_discrete_inputs<\/td>\n\u540c\u4e0a<\/td>\n<\/tr>\n
\u4fdd\u6301\u5bc4\u5b58\u5668<\/td>\nwrite_holding_registers<\/td>\nread_holding_registers<\/td>\naddress: \u8d77\u59cb\u5730\u5740values: List[int] \/ count<\/td>\n<\/tr>\n
\u8f93\u5165\u5bc4\u5b58\u5668<\/td>\nwrite_input_registers<\/td>\nread_input_registers<\/td>\n\u540c\u4e0a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4ee3\u7801\u793a\u4f8b：<\/p>\n

# \u521d\u59cb\u5316\u5730\u5740 0 \u5f00\u59cb\u7684 5 \u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668<\/span>
\nstore.<\/span>write_holding_registers(<\/span>address=<\/span>0<\/span>,<\/span> values=<\/span>[<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>,<\/span> 40<\/span>,<\/span> 50<\/span>]<\/span>)<\/span><\/p>\n

# \u8bfb\u53d6\u5730\u5740 2 \u5f00\u59cb\u7684 2 \u4e2a\u8f93\u5165\u5bc4\u5b58\u5668<\/span>
\ndata =<\/span> store.<\/span>read_input_registers(<\/span>address=<\/span>2<\/span>,<\/span> count=<\/span>2<\/span>)<\/span><\/p>\n

# \u8bbe\u7f6e\u5730\u5740 5 \u7684\u7ebf\u5708\u4e3a True<\/span>
\nstore.<\/span>write_coils(<\/span>address=<\/span>5<\/span>,<\/span> values=<\/span>[<\/span>True<\/span>]<\/span>)<\/span><\/p>\n

1.3 \u6570\u636e\u53d8\u66f4\u56de\u8c03<\/h4>\n

\u5f53\u5916\u90e8\u5ba2\u6237\u7aef（\u6216\u5176\u4ed6\u5185\u90e8\u903b\u8f91）\u4fee\u6539\u4e86\u6570\u636e\u5b58\u50a8\u4e2d\u7684\u503c\u65f6，\u60a8\u53ef\u4ee5\u6ce8\u518c\u56de\u8c03\u51fd\u6570\u6765\u63a5\u6536\u901a\u77e5\u3002\u8fd9\u5bf9\u4e8e\u5b9e\u73b0\u63a7\u5236\u903b\u8f91\u975e\u5e38\u6709\u7528（\u4f8b\u5982：\u5f53\u5ba2\u6237\u7aef\u5199\u5165"\u542f\u52a8"\u7ebf\u5708\u65f6，\u670d\u52a1\u5668\u6267\u884c\u5b9e\u9645\u7684\u786c\u4ef6\u64cd\u4f5c）\u3002<\/p>\n

# \u5b9a\u4e49\u56de\u8c03\u51fd\u6570<\/span>
\ndef<\/span> on_coil_change<\/span>(<\/span>address,<\/span> values)<\/span>:<\/span>
\n print<\/span>(<\/span>f"\u8b66\u544a：\u5ba2\u6237\u7aef\u4fee\u6539\u4e86\u7ebf\u5708 @ <\/span>{<\/span>address}<\/span><\/span>, \u65b0\u503c: <\/span>{<\/span>values}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

# \u6ce8\u518c\u56de\u8c03<\/span>
\n# \u533a\u57df\u952e\u540d: 'coils', 'discrete_inputs', 'holding_registers', 'input_registers'<\/span>
\nstore.<\/span>add_callback(<\/span>'coils'<\/span>,<\/span> on_coil_change)<\/span><\/p>\n

\n

2. TCP \u670d\u52a1\u5668 (AsyncTcpModbusServer)<\/h3>\n

\u521b\u5efa\u4e00\u4e2a\u76d1\u542c TCP \u7aef\u53e3\u7684 Modbus \u670d\u52a1\u5668\u3002\u652f\u6301\u591a\u5ba2\u6237\u7aef\u540c\u65f6\u8fde\u63a5\u3002<\/p>\n

\u521d\u59cb\u5316\u4e0e\u8fd0\u884c<\/h4>\n

import<\/span> asyncio
\nfrom<\/span> modbuslink import<\/span> AsyncTcpModbusServer,<\/span> ModbusDataStore<\/p>\n

async<\/span> def<\/span> main<\/span>(<\/span>)<\/span>:<\/span>
\n # 1. \u51c6\u5907\u6570\u636e\u5b58\u50a8<\/span>
\n store =<\/span> ModbusDataStore(<\/span>holding_registers_size=<\/span>100<\/span>)<\/span>
\n store.<\/span>write_holding_registers(<\/span>0<\/span>,<\/span> [<\/span>123<\/span>,<\/span> 456<\/span>]<\/span>)<\/span><\/p>\n

# 2. \u914d\u7f6e\u5e76\u521b\u5efa\u670d\u52a1\u5668<\/span>
\n server =<\/span> AsyncTcpModbusServer(<\/span>
\n host=<\/span>'0.0.0.0'<\/span>,<\/span> # \u76d1\u542c\u6240\u6709\u7f51\u5361<\/span>
\n port=<\/span>502<\/span>,<\/span> # Modbus TCP \u6807\u51c6\u7aef\u53e3<\/span>
\n data_store=<\/span>store,<\/span> # \u5173\u8054\u6570\u636e\u5b58\u50a8<\/span>
\n slave_id=<\/span>1<\/span> # \u54cd\u5e94\u7684\u5355\u5143\u6807\u8bc6\u7b26 (Unit ID)<\/span>
\n )<\/span><\/p>\n

print<\/span>(<\/span>"TCP \u670d\u52a1\u5668\u542f\u52a8\u4e2d…"<\/span>)<\/span><\/p>\n

# 3. \u542f\u52a8\u670d\u52a1\u5668<\/span>
\n await<\/span> server.<\/span>start(<\/span>)<\/span><\/p>\n

# 4. \u6301\u7eed\u8fd0\u884c<\/span>
\n # serve_forever() \u4f1a\u4fdd\u6301\u8fd0\u884c\u76f4\u5230\u88ab\u53d6\u6d88<\/span>
\n try<\/span>:<\/span>
\n await<\/span> server.<\/span>serve_forever(<\/span>)<\/span>
\n finally<\/span>:<\/span>
\n await<\/span> server.<\/span>stop(<\/span>)<\/span><\/p>\n

if<\/span> __name__ ==<\/span> "__main__"<\/span>:<\/span>
\n asyncio.<\/span>run(<\/span>main(<\/span>)<\/span>)<\/span><\/p>\n

\u7279\u6709\u65b9\u6cd5：<\/p>\n

    \n
  • get_connected_clients_count(): \u83b7\u53d6\u5f53\u524d\u8fde\u63a5\u7684 TCP \u5ba2\u6237\u7aef\u6570\u91cf\u3002<\/li>\n<\/ul>\n
    \n

    3. RTU \u670d\u52a1\u5668 (AsyncRtuModbusServer)<\/h3>\n

    \u521b\u5efa\u4e00\u4e2a\u901a\u8fc7\u4e32\u53e3\u901a\u4fe1\u7684 Modbus RTU \u4ece\u7ad9\u3002<\/p>\n

    \u521d\u59cb\u5316\u4e0e\u8fd0\u884c<\/h4>\n

    import<\/span> asyncio
    \nfrom<\/span> modbuslink import<\/span> AsyncRtuModbusServer,<\/span> ModbusDataStore<\/p>\n

    async<\/span> def<\/span> main<\/span>(<\/span>)<\/span>:<\/span>
    \n store =<\/span> ModbusDataStore(<\/span>coils_size=<\/span>50<\/span>)<\/span><\/p>\n

    # \u521b\u5efa RTU \u670d\u52a1\u5668<\/span>
    \n server =<\/span> AsyncRtuModbusServer(<\/span>
    \n port=<\/span>'COM3'<\/span>,<\/span> # \u4e32\u53e3\u53f7 (Linux: '\/dev\/ttyUSB0')<\/span>
    \n baudrate=<\/span>9600<\/span>,<\/span> # \u6ce2\u7279\u7387<\/span>
    \n bytesize=<\/span>8<\/span>,<\/span> # \u6570\u636e\u4f4d<\/span>
    \n parity=<\/span>'N'<\/span>,<\/span> # \u6821\u9a8c\u4f4d ('N', 'E', 'O')<\/span>
    \n stopbits=<\/span>1<\/span>,<\/span> # \u505c\u6b62\u4f4d<\/span>
    \n data_store=<\/span>store,<\/span> # \u6570\u636e\u5b58\u50a8<\/span>
    \n slave_id=<\/span>1<\/span> # \u672c\u673a\u4f5c\u4e3a\u4ece\u7ad9\u7684\u5730\u5740 (\u975e\u5e38\u91cd\u8981)<\/span>
    \n )<\/span><\/p>\n

    print<\/span>(<\/span>f"RTU \u4ece\u7ad9 (ID=<\/span>{<\/span>server.<\/span>slave_id}<\/span><\/span>) \u8fd0\u884c\u5728 <\/span>{<\/span>server.<\/span>port}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

    await<\/span> server.<\/span>start(<\/span>)<\/span>
    \n try<\/span>:<\/span>
    \n await<\/span> server.<\/span>serve_forever(<\/span>)<\/span>
    \n finally<\/span>:<\/span>
    \n await<\/span> server.<\/span>stop(<\/span>)<\/span><\/p>\n

    if<\/span> __name__ ==<\/span> "__main__"<\/span>:<\/span>
    \n asyncio.<\/span>run(<\/span>main(<\/span>)<\/span>)<\/span><\/p>\n

    \u53c2\u6570\u8bf4\u660e：<\/p>\n

      \n
    • slave_id: RTU \u6a21\u5f0f\u4e0b，\u670d\u52a1\u5668\u53ea\u4f1a\u54cd\u5e94\u8bf7\u6c42\u4e2d\u4ece\u7ad9 ID \u4e0e\u6b64\u53c2\u6570\u5339\u914d\u7684\u6570\u636e\u5305\u3002<\/li>\n<\/ul>\n
      \n

      4. ASCII \u670d\u52a1\u5668 (AsyncAsciiModbusServer)<\/h3>\n

      \u521b\u5efa\u4e00\u4e2a Modbus ASCII \u4ece\u7ad9\u3002\u901a\u5e38\u7528\u4e8e\u8001\u65e7\u8bbe\u5907\u6216\u7279\u5b9a\u7684\u6587\u672c\u4f20\u8f93\u573a\u666f\u3002<\/p>\n

      \u521d\u59cb\u5316\u4e0e\u8fd0\u884c<\/h4>\n

      import<\/span> asyncio
      \nfrom<\/span> modbuslink import<\/span> AsyncAsciiModbusServer,<\/span> ModbusDataStore<\/p>\n

      async<\/span> def<\/span> main<\/span>(<\/span>)<\/span>:<\/span>
      \n store =<\/span> ModbusDataStore(<\/span>input_registers_size=<\/span>50<\/span>)<\/span><\/p>\n

      # \u6807\u51c6 ASCII \u8bbe\u7f6e\u901a\u5e38\u662f 7\u4f4d\u6570\u636e\u4f4d, \u5076\u6821\u9a8c<\/span>
      \n server =<\/span> AsyncAsciiModbusServer(<\/span>
      \n port=<\/span>'COM4'<\/span>,<\/span>
      \n baudrate=<\/span>9600<\/span>,<\/span>
      \n bytesize=<\/span>7<\/span>,<\/span> # ASCII \u6807\u51c6\u901a\u5e38\u4e3a 7<\/span>
      \n parity=<\/span>'E'<\/span>,<\/span> # ASCII \u6807\u51c6\u901a\u5e38\u4e3a Even<\/span>
      \n stopbits=<\/span>1<\/span>,<\/span>
      \n data_store=<\/span>store,<\/span>
      \n slave_id=<\/span>1<\/span>
      \n )<\/span><\/p>\n

      print<\/span>(<\/span>"ASCII \u670d\u52a1\u5668\u8fd0\u884c\u4e2d…"<\/span>)<\/span><\/p>\n

      await<\/span> server.<\/span>start(<\/span>)<\/span>
      \n try<\/span>:<\/span>
      \n await<\/span> server.<\/span>serve_forever(<\/span>)<\/span>
      \n finally<\/span>:<\/span>
      \n await<\/span> server.<\/span>stop(<\/span>)<\/span><\/p>\n

      if<\/span> __name__ ==<\/span> "__main__"<\/span>:<\/span>
      \n asyncio.<\/span>run(<\/span>main(<\/span>)<\/span>)<\/span><\/p>\n

      \n

      5. \u9ad8\u7ea7\u529f\u80fd：\u52a8\u6001\u6a21\u62df\u4f20\u611f\u5668\u6570\u636e<\/h3>\n

      Modbus \u670d\u52a1\u5668\u901a\u5e38\u4e0d\u4ec5\u4ec5\u662f\u9759\u6001\u5b58\u50a8，\u8fd8\u9700\u8981\u6a21\u62df\u4f20\u611f\u5668\u6570\u636e\u7684\u5b9e\u65f6\u53d8\u5316\u3002\u5229\u7528 asyncio，\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u521b\u5efa\u4e00\u4e2a\u540e\u53f0\u4efb\u52a1\u6765\u66f4\u65b0\u6570\u636e\u3002<\/p>\n

      \u5b8c\u6574\u793a\u4f8b：\u52a8\u6001 TCP \u670d\u52a1\u5668<\/h4>\n

      \u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u968f\u65f6\u95f4\u81ea\u52a8\u66f4\u65b0\u6570\u636e\u7684 TCP \u670d\u52a1\u5668，\u5e76\u76d1\u63a7\u670d\u52a1\u5668\u72b6\u6001\u3002<\/p>\n

      import<\/span> asyncio
      \nimport<\/span> random
      \nfrom<\/span> modbuslink import<\/span> AsyncTcpModbusServer,<\/span> ModbusDataStore<\/p>\n

      async<\/span> def<\/span> simulate_sensor<\/span>(<\/span>store:<\/span> ModbusDataStore)<\/span>:<\/span>
      \n """\u540e\u53f0\u4efb\u52a1：\u6a21\u62df\u6e29\u5ea6\u4f20\u611f\u5668\u6570\u636e\u6ce2\u52a8"""<\/span>
      \n print<\/span>(<\/span>"\u4f20\u611f\u5668\u6a21\u62df\u4efb\u52a1\u5df2\u542f\u52a8…"<\/span>)<\/span>
      \n address =<\/span> 0<\/span>
      \n while<\/span> True<\/span>:<\/span>
      \n # \u751f\u6210 200 \u5230 300 \u4e4b\u95f4\u7684\u968f\u673a\u6570<\/span>
      \n new_value =<\/span> random.<\/span>randint(<\/span>200<\/span>,<\/span> 300<\/span>)<\/span><\/p>\n

      # \u66f4\u65b0\u8f93\u5165\u5bc4\u5b58\u5668 (Input Registers, 3x\u533a)<\/span>
      \n store.<\/span>write_input_registers(<\/span>address,<\/span> [<\/span>new_value]<\/span>)<\/span><\/p>\n

      # \u4e5f\u53ef\u4ee5\u540c\u65f6\u66f4\u65b0\u7ebf\u5708\u72b6\u6001<\/span>
      \n store.<\/span>write_coils(<\/span>0<\/span>,<\/span> [<\/span>random.<\/span>choice(<\/span>[<\/span>True<\/span>,<\/span> False<\/span>]<\/span>)<\/span>]<\/span>)<\/span><\/p>\n

      # \u6bcf\u79d2\u66f4\u65b0\u4e00\u6b21<\/span>
      \n await<\/span> asyncio.<\/span>sleep(<\/span>1.0<\/span>)<\/span><\/p>\n

      async<\/span> def<\/span> main<\/span>(<\/span>)<\/span>:<\/span>
      \n # 1. \u521b\u5efa\u6570\u636e\u5b58\u50a8<\/span>
      \n store =<\/span> ModbusDataStore(<\/span>
      \n input_registers_size=<\/span>10<\/span>,<\/span>
      \n coils_size=<\/span>10<\/span>
      \n )<\/span><\/p>\n

      # 2. \u521b\u5efa\u670d\u52a1\u5668<\/span>
      \n server =<\/span> AsyncTcpModbusServer(<\/span>
      \n host=<\/span>'127.0.0.1'<\/span>,<\/span>
      \n port=<\/span>502<\/span>,<\/span>
      \n data_store=<\/span>store
      \n )<\/span><\/p>\n

      # 3. \u542f\u52a8\u670d\u52a1\u5668<\/span>
      \n await<\/span> server.<\/span>start(<\/span>)<\/span><\/p>\n

      # 4. \u521b\u5efa\u5e76\u53d1\u4efb\u52a1<\/span>
      \n # \u4f7f\u7528 asyncio.gather \u540c\u65f6\u8fd0\u884c\u670d\u52a1\u5668\u4e3b\u5faa\u73af\u548c\u6a21\u62df\u4efb\u52a1<\/span>
      \n try<\/span>:<\/span>
      \n await<\/span> asyncio.<\/span>gather(<\/span>
      \n server.<\/span>serve_forever(<\/span>)<\/span>,<\/span> # \u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42<\/span>
      \n simulate_sensor(<\/span>store)<\/span> # \u540e\u53f0\u66f4\u65b0\u6570\u636e<\/span>
      \n )<\/span>
      \n except<\/span> asyncio.<\/span>CancelledError:<\/span>
      \n print<\/span>(<\/span>"\u4efb\u52a1\u53d6\u6d88"<\/span>)<\/span>
      \n finally<\/span>:<\/span>
      \n await<\/span> server.<\/span>stop(<\/span>)<\/span><\/p>\n

      if<\/span> __name__ ==<\/span> "__main__"<\/span>:<\/span>
      \n try<\/span>:<\/span>
      \n asyncio.<\/span>run(<\/span>main(<\/span>)<\/span>)<\/span>
      \n except<\/span> KeyboardInterrupt:<\/span>
      \n print<\/span>(<\/span>"\u670d\u52a1\u5668\u5df2\u505c\u6b62"<\/span>)<\/span><\/p>\n

      GitHub\u5730\u5740<\/h3>\n

      Miraitowa-la\/ModbusLink<\/p>\n","protected":false},"excerpt":{"rendered":"

      📚 ModbusLink \u670d\u52a1\u5668\u4f7f\u7528\u8bf4\u660e
      \n\u672c\u6587\u6863\u8be6\u7ec6\u4ecb\u7ecd\u4e86 ModbusLink \u8f6f\u4ef6\u5305\u4e2d\u670d\u52a1\u5668\u7ec4\u4ef6\u7684\u4f7f\u7528\u65b9\u6cd5\u3002ModbusLink \u7684\u670d\u52a1\u5668\u57fa\u4e8e\u5f02\u6b65 IO (asyncio) \u6784\u5efa，\u80fd\u591f\u9ad8\u6548\u5730\u5904\u7406\u5e76\u53d1\u8fde\u63a5（TCP）\u6216\u5feb\u901f\u54cd\u5e94\u4e32\u53e3\u8bf7\u6c42（RTU\/ASCII），\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5f00\u53d1\u865a\u62df\u4ece\u7ad9\u8bbe\u5907\u3001\u786c\u4ef6\u4eff\u771f\u5668\u6216\u7f51\u5173\u5e94\u7528\u3002 1. \u6838\u5fc3\u6982\u5ff5：\u6570\u636e\u5b58\u50a8 (ModbusDataSt<\/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":[81,43,78],"topic":[],"class_list":["post-70339","post","type-post","status-publish","format-standard","hentry","category-server","tag-python","tag-43","tag-78"],"yoast_head":"\nModbusLink \u670d\u52a1\u5668\u4f7f\u7528\u8bf4\u660e - 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