"# Modbus \u5de5\u7a0b\u5e08\u5fc5\u5907\u795e\u5668\uff01RTU\/TCP\/ASCII \u62a5\u6587\u751f\u6210\u89e3\u6790\u5668\uff0c\u6548\u7387\u63d0\u5347 10 \u500d\n\n> 2026-04-06 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/41694.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\nModbus \u5de5\u7a0b\u5e08\u5fc5\u5907\u795e\u5668\uff01RTU\/TCP\/ASCII \u62a5\u6587\u751f\u6210\u89e3\u6790\u5668\uff0c\u6548\u7387\u63d0\u5347 10 \u500d\n\n\u8fd8\u5728\u624b\u52a8\u8ba1\u7b97 Modbus \u62a5\u6587\uff1f\u8fd9\u4e2a\u5de5\u5177\u652f\u6301 RTU\/TCP\/ASCII \u4e09\u79cd\u534f\u8bae\uff0c\u81ea\u52a8\u751f\u6210\u8bf7\u6c42\/\u54cd\u5e94\u62a5\u6587\uff0cCRC\/LRC \u6821\u9a8c\u3001\u62a5\u6587\u89e3\u6790\u3001\u5386\u53f2\u8bb0\u5f55\u4e00\u952e\u641e\u5b9a\n\n## \u524d\u8a00\uff1aModbus \u8c03\u8bd5\u7684\u75db\uff0c\u5de5\u7a0b\u5e08\u90fd\u61c2\n\n\u6211\u505a\u4e86 20 \u5e74\u5de5\u4e1a\u81ea\u52a8\u5316\uff0c\u592a\u61c2 Modbus \u8c03\u8bd5\u7684\u75db\u82e6\u3002\n\n**\u4f60\u662f\u4e0d\u662f\u4e5f\u7ecf\u5e38\u9047\u5230\u8fd9\u4e9b\u60c5\u51b5\uff1f**\n\n**\u573a\u666f 1\uff1a\u624b\u52a8\u8ba1\u7b97\u62a5\u6587\uff0c\u5bb9\u6613\u9519**\n\n\u8981\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c\u4ece\u7ad9\u5730\u5740 01\uff0c\u8d77\u59cb\u5730\u5740 40001\uff0c\u6570\u91cf 10 \u4e2a\n\u4f60\u62ff\u7740\u8ba1\u7b97\u5668\u7b97\uff1a\n\n- \u4ece\u7ad9\u5730\u5740\uff1a01\n\n- \u529f\u80fd\u7801\uff1a03\n\n- \u8d77\u59cb\u5730\u5740\uff1a00 00\uff0840001-1=40000=0x9C40\uff0c\u7b49\u7b49\uff0c\u4e0d\u5bf9...\uff09\n\n- \u6570\u91cf\uff1a00 0A\n\n- CRC \u6821\u9a8c\uff1a\uff1f\uff1f\uff1f\n\n\u7b97\u4e86\u4e00\u534a\uff0c\u5ba2\u6237\u6253\u7535\u8bdd\u6765\uff0c\u56de\u6765\u5fd8\u4e86\u7b97\u5230\u54ea\u4e86\n\u91cd\u65b0\u7b97\uff0cCRC \u7b97\u51fa\u6765\u4e0d\u5bf9\n\u518d\u7b97\uff0c\u8fd8\u662f\u4e0d\u5bf9...\n\n**\u573a\u666f 2\uff1a\u6536\u5230\u62a5\u6587\uff0c\u4e0d\u4f1a\u89e3\u6790**\n\n\u8bbe\u5907\u8fd4\u56de\uff1a`01 03 14 00 0A 00 0B 00 0C 00 0D 00 0E xx xx`\n\u4f60\u76ef\u7740\u770b\uff1a\n\n- \u8fd9\u662f\u529f\u80fd\u7801 03 \u7684\u54cd\u5e94\n\n- 14 \u662f\u5b57\u8282\u6570\uff0820 \u5b57\u8282\uff09\n\n- \u4f46\u6bcf\u4e2a\u5bc4\u5b58\u5668\u503c\u662f\u591a\u5c11\uff1f\n\n- \u5b57\u8282\u5e8f\u662f AB \u8fd8\u662f BA\uff1f\n\n**\u573a\u666f 3\uff1a\u4e09\u79cd\u534f\u8bae\uff0c\u641e\u6df7\u4e86**\n\n- RTU \u7528 CRC \u6821\u9a8c\n\n- ASCII \u7528 LRC \u6821\u9a8c\n\n- TCP \u6709 MBAP \u5934\n\n\u4e00\u7740\u6025\uff0c\u7528 RTU \u7684\u65b9\u5f0f\u89e3\u6790 TCP \u62a5\u6587\uff0c\u600e\u4e48\u90fd\u5bf9\u4e0d\u4e0a\n\n**\u573a\u666f 4\uff1a\u8c03\u8bd5\u8bb0\u5f55\uff0c\u627e\u4e0d\u5230**\n\n\u6628\u5929\u8c03\u597d\u7684\u62a5\u6587\uff0c\u4eca\u5929\u627e\u4e0d\u5230\u4e86\n\u95ee\u540c\u4e8b\u8981\uff0c\u540c\u4e8b\u8bf4\"\u6211\u4e5f\u5fd8\u4e86\"\n\u91cd\u65b0\u7b97\uff0c\u53c8\u82b1 1 \u5c0f\u65f6\n\n**\u8fd9\u4e9b\u75db\u70b9\uff0c\u6211\u90fd\u77e5\u9053\u3002**\n\n\u6240\u4ee5\uff0c\u6211\u5f00\u53d1\u4e86\u8fd9\u4e2a **Modbus \u62a5\u6587\u751f\u6210\u89e3\u6790\u5668**\u3002\n\n\u5b83\u652f\u6301 **RTU\/TCP\/ASCII \u4e09\u79cd\u534f\u8bae**\uff0c\u81ea\u52a8\u751f\u6210\u8bf7\u6c42\/\u54cd\u5e94\u62a5\u6587\u3002\n\n**\u4e0d\u7528\u624b\u52a8\u8ba1\u7b97\uff0c\u4e0d\u7528\u8bb0\u516c\u5f0f\uff0c\u70b9\u51e0\u4e0b\u5c31\u751f\u6210\u3002**\n\n## \u4e00\u3001\u6838\u5fc3\u529f\u80fd\uff1a\u4e3a\u4ec0\u4e48\u5de5\u7a0b\u5e08\u90fd\u8bf4\u597d\uff1f\n\n### 1.1 \u4e09\u79cd\u534f\u8bae\u5168\u8986\u76d6\n\n**\u652f\u6301 Modbus \u4e09\u79cd\u4f20\u8f93\u6a21\u5f0f\uff1a**\n\n\u534f\u8bae\u6821\u9a8c\u65b9\u5f0f\u5e27\u683c\u5f0f\u9002\u7528\u573a\u666f**Modbus RTU**CRC16\u4e8c\u8fdb\u5236\u4e32\u53e3\u901a\u4fe1\uff08RS485\/RS232\uff09**Modbus ASCII**LRCASCII \u6587\u672c\u8001\u65e7\u8bbe\u5907\/\u8c03\u5236\u89e3\u8c03\u5668**Modbus TCP**\u65e0\u6821\u9a8c\uff08TCP \u4fdd\u8bc1\uff09MBAP \u5934 +ADU\u4ee5\u592a\u7f51\u901a\u4fe1\n\n**\u4e00\u4e2a\u5de5\u5177\uff0c\u641e\u5b9a\u6240\u6709 Modbus \u8c03\u8bd5\u573a\u666f\u3002**\n\n### 1.2 \u8bf7\u6c42\u547d\u4ee4\u751f\u6210\u5668\n\n**\u529f\u80fd\u8bf4\u660e**\uff1a\n\n**\u2460 \u652f\u6301 12 \u79cd\u529f\u80fd\u7801**\n\n\u529f\u80fd\u7801\u540d\u79f0\u7528\u901401\u8bfb\u7ebf\u5708\u72b6\u6001\u8bfb\u53d6\u5f00\u5173\u91cf\u8f93\u51fa02\u8bfb\u79bb\u6563\u8f93\u5165\u8bfb\u53d6\u5f00\u5173\u91cf\u8f93\u516503\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\u6700\u5e38\u7528\uff08\u6a21\u62df\u91cf\u8f93\u51fa\uff0904\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u53ea\u8bfb\uff08\u6a21\u62df\u91cf\u8f93\u5165\uff0905\u5199\u5355\u4e2a\u7ebf\u5708\u5f00\u5173\u63a7\u523606\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u53c2\u6570\u8bbe\u7f6e0F\u5199\u591a\u4e2a\u7ebf\u5708\u6279\u91cf\u5f00\u5173\u63a7\u523610\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u6279\u91cf\u53c2\u6570\u8bbe\u7f6e17\u8bfb\/\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u540c\u65f6\u8bfb\u51992B\u8bfb\u53d6\u8bbe\u5907\u6807\u8bc6\u8bbe\u5907\u4fe1\u606f\u67e5\u8be2\n\n**\u2461 \u53c2\u6570\u914d\u7f6e**\n\n\u4ee5\u529f\u80fd\u7801 03\uff08\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\uff09\u4e3a\u4f8b\uff1a\n\n```\n\u4ece\u7ad9\u5730\u5740\uff1a01\uff080-247\uff09\n\u529f\u80fd\u7801\uff1a03\n\u8d77\u59cb\u5730\u5740\uff1a0000\uff08\u5341\u516d\u8fdb\u5236\u6216\u5341\u8fdb\u5236\uff09\n\u6570\u91cf\uff1a0010\uff08\u8bfb\u53d6 10 \u4e2a\u5bc4\u5b58\u5668\uff09\n\n```\n\n**\u2462 \u81ea\u52a8\u751f\u6210\u62a5\u6587**\n\n\u8f93\u5165\u53c2\u6570\u540e\uff0c\u81ea\u52a8\u751f\u6210\uff1a\n\n**RTU \u6a21\u5f0f\uff1a**\n\n```\n01 03 00 00 00 0A C4 0B\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500 CRC \u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500 CRC \u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u6570\u91cf\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u6570\u91cf\u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u9ad8\u5b57\u8282\n\u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u529f\u80fd\u7801\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4ece\u7ad9\u5730\u5740\n\n```\n\n**ASCII \u6a21\u5f0f\uff1a**\n\n```\n:01030000000AFB\n\u2502            \u2502  \u2502\n\u2502            \u2502  \u2514\u2500\u2500 LRC \u6821\u9a8c\uff08FB\uff09\n\u2502            \u2514\u2500\u2500\u2500\u2500\u2500 \u6570\u636e\u90e8\u5206\uff08ASCII \u7f16\u7801\uff09\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u7b26\uff08:\uff09\n\n```\n\n**TCP \u6a21\u5f0f\uff1a**\n\n```\n00 01 00 00 00 06 01 03 00 00 00 0A\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500 \u6570\u91cf\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u6570\u91cf\u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u529f\u80fd\u7801\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u5355\u5143\u6807\u8bc6\u7b26\uff08\u4ece\u7ad9\u5730\u5740\uff09\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u957f\u5ea6\uff08\u540e\u7eed\u5b57\u8282\u6570\uff09\n\u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u534f\u8bae\u6807\u8bc6\u7b26\uff080=Modbus\uff09\n\u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4e8b\u52a1\u6807\u8bc6\u7b26\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4e8b\u52a1\u6807\u8bc6\u7b26\u9ad8\u5b57\u8282\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 MBAP \u5934\uff087 \u5b57\u8282\uff09\n\n```\n\n**\u2463 \u7279\u6b8a\u529f\u80fd\u7801\u652f\u6301**\n\n**\u529f\u80fd\u7801 05\uff08\u5199\u5355\u4e2a\u7ebf\u5708\uff09\uff1a**\n\n- \u5f00\u5173\u9009\u62e9\uff1a\u6253\u5f00 (ON) \/ \u5173\u95ed (OFF)\n\n- \u81ea\u52a8\u8f6c\u6362\u4e3a FF00\/0000\n\n**\u529f\u80fd\u7801 0F\uff08\u5199\u591a\u4e2a\u7ebf\u5708\uff09\uff1a**\n\n- \u7ebf\u5708\u6570\u91cf\u8f93\u5165\n\n- \u53ef\u89c6\u5316\u7ebf\u5708\u9009\u62e9\uff08\u5706\u70b9\u6309\u94ae\uff09\n\n- \u70b9\u51fb\u5207\u6362\u72b6\u6001\uff08\u7070=OFF\uff0c\u84dd=ON\uff09\n\n- \u81ea\u52a8\u8ba1\u7b97\u5b57\u8282\u6570\n\n**\u529f\u80fd\u7801 10\uff08\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\uff09\uff1a**\n\n- \u5bc4\u5b58\u5668\u5217\u8868\uff08\u53ef\u6dfb\u52a0\u591a\u4e2a\uff09\n\n\u6bcf\u4e2a\u5bc4\u5b58\u5668\u8bbe\u7f6e\uff1a\n\n- \u5730\u5740\uff08\u81ea\u52a8\u8ba1\u7b97\uff09\n\n- \u6570\u636e\u7c7b\u578b\uff08UINT16\/INT16\/UINT32\/INT32\/FLOAT\uff09\n\n- \u5b57\u8282\u5e8f\uff08AB\/BA\uff09\n\n- \u6570\u503c\uff08\u5341\u8fdb\u5236\u8f93\u5165\uff09\n\n- \u81ea\u52a8\u8f6c\u6362\u4e3a\u5bc4\u5b58\u5668\u503c\n\n### 1.3 \u54cd\u5e94\u62a5\u6587\u751f\u6210\u5668\n\n**\u529f\u80fd\u8bf4\u660e**\uff1a\n\n**\u2460 \u6a21\u62df\u8bbe\u5907\u54cd\u5e94**\n\n\u7528\u4e8e\u6d4b\u8bd5\u4e0a\u4f4d\u673a\u8f6f\u4ef6\uff08\u5982\u7ec4\u6001\u738b\u3001WinCC\uff09\u6216 PLC \u7a0b\u5e8f\u3002\n\n**\u2461 \u652f\u6301\u6b63\u5e38\u54cd\u5e94\u548c\u5f02\u5e38\u54cd\u5e94**\n\n**\u6b63\u5e38\u54cd\u5e94\uff08\u529f\u80fd\u7801 03\uff09\uff1a**\n\n```\n\u4ece\u7ad9\u5730\u5740\uff1a01\n\u529f\u80fd\u7801\uff1a03\n\u5b57\u8282\u6570\uff1a20\uff0810 \u4e2a\u5bc4\u5b58\u5668\u00d72\uff09\n\u5bc4\u5b58\u5668\u503c\uff1a\n  - Reg 0: 10\uff080x000A\uff09\n  - Reg 1: 20\uff080x0014\uff09\n  - Reg 2: 30\uff080x001E\uff09\n  - ...\n\n```\n\n**\u5f02\u5e38\u54cd\u5e94\uff1a**\n\n```\n\u4ece\u7ad9\u5730\u5740\uff1a01\n\u529f\u80fd\u7801\uff1a83\uff0803+80\uff09\n\u5f02\u5e38\u7801\uff1a\n  - 01\uff1a\u975e\u6cd5\u529f\u80fd\n  - 02\uff1a\u975e\u6cd5\u6570\u636e\u5730\u5740\n  - 03\uff1a\u975e\u6cd5\u6570\u636e\u503c\n  - 04\uff1a\u4ece\u7ad9\u8bbe\u5907\u6545\u969c\n  - 05\uff1a\u8ba4\u53ef\n  - 06\uff1a\u4ece\u5c5e\u8bbe\u5907\u5fd9\n\n```\n\n**\u2462 \u6570\u636e\u7c7b\u578b\u652f\u6301**\n\n\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u81ea\u52a8\u8f6c\u6362\uff1a\n\n\u7c7b\u578b\u5b57\u8282\u6570\u8303\u56f4\u5b57\u8282\u5e8fUINT1620-65535\u56fa\u5b9aINT162-32768~32767\u56fa\u5b9aUINT3240-4294967295AB\/BAINT324-2147483648~2147483647AB\/BAFLOAT4IEEE 754 \u5355\u7cbe\u5ea6AB\/BA\/CDAB\/BADC\n\n**\u793a\u4f8b**\uff1a\n\n\u8f93\u5165\u5341\u8fdb\u5236\u503c\uff1a25.5\uff08FLOAT \u7c7b\u578b\uff09\n\n\u81ea\u52a8\u8f6c\u6362\u4e3a\u5bc4\u5b58\u5668\u503c\uff1a\n\n- Reg 0: 0x41CC\uff08\u9ad8 16 \u4f4d\uff09\n\n- Reg 1: 0x0000\uff08\u4f4e 16 \u4f4d\uff09\n\n### 1.4 \u62a5\u6587\u89e3\u6790\u5668\n\n**\u529f\u80fd\u8bf4\u660e**\uff1a\n\n**\u2460 \u7c98\u8d34\u62a5\u6587\uff0c\u81ea\u52a8\u89e3\u6790**\n\n\u6536\u5230\u8bbe\u5907\u8fd4\u56de\u7684\u62a5\u6587\uff0c\u7c98\u8d34\u8fdb\u53bb\uff0c\u81ea\u52a8\u89e3\u6790\uff1a\n\n**\u8f93\u5165\uff08RTU \u6a21\u5f0f\uff09\uff1a**\n\n```\n01 03 14 00 0A 00 0B 00 0C 00 0D 00 0E 7A 3B\n\n```\n\n**\u81ea\u52a8\u89e3\u6790\uff1a**\n\n```\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 \u4ece\u7ad9\u5730\u5740\uff1a01                        \u2502\n\u2502 \u529f\u80fd\u7801\uff1a03\uff08\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\uff09          \u2502\n\u2502 \u5b57\u8282\u6570\uff1a20\uff080x14\uff09                  \u2502\n\u2502 \u6570\u636e\u5185\u5bb9\uff1a                          \u2502\n\u2502   Reg 0: 0x000A = 10                \u2502\n\u2502   Reg 1: 0x000B = 11                \u2502\n\u2502   Reg 2: 0x000C = 12                \u2502\n\u2502   Reg 3: 0x000D = 13                \u2502\n\u2502   Reg 4: 0x000E = 14                \u2502\n\u2502 CRC \u6821\u9a8c\uff1a7A3B \u2713\uff08\u6b63\u786e\uff09            \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n\n```\n\n**\u2461 \u652f\u6301\u4e09\u79cd\u534f\u8bae\u89e3\u6790**\n\n- RTU\uff1aCRC16 \u6821\u9a8c\n\n- ASCII\uff1aLRC \u6821\u9a8c\n\n- TCP\uff1aMBAP \u5934\u89e3\u6790\n\n**\u2462 \u9519\u8bef\u68c0\u6d4b**\n\n- CRC\/LRC \u6821\u9a8c\u9519\u8bef\u63d0\u793a\n\n- \u62a5\u6587\u957f\u5ea6\u5f02\u5e38\u63d0\u9192\n\n- \u975e\u6cd5\u529f\u80fd\u7801\u8b66\u544a\n\n### 1.5 \u5386\u53f2\u8bb0\u5f55\n\n**\u529f\u80fd\u8bf4\u660e**\uff1a\n\n**\u2460 \u81ea\u52a8\u4fdd\u5b58**\n\n\u6bcf\u6b21\u751f\u6210\u7684\u62a5\u6587\u81ea\u52a8\u4fdd\u5b58\uff0c\u5305\u542b\uff1a\n\n- \u62a5\u6587\u5185\u5bb9\n\n- \u751f\u6210\u65f6\u95f4\n\n- \u62a5\u6587\u7c7b\u578b\uff08\u8bf7\u6c42\/\u54cd\u5e94\uff09\n\n**\u2461 \u5feb\u6377\u64cd\u4f5c**\n\n- **\u590d\u5236**\uff1a\u4e00\u952e\u590d\u5236\u62a5\u6587\n\n- **\u5fae\u4fe1\u5206\u4eab**\uff1a\u53d1\u9001\u7ed9\u540c\u4e8b\n\n- **\u6e05\u7a7a**\uff1a\u6e05\u9664\u5386\u53f2\u8bb0\u5f55\n\n**\u2462 \u5206\u7c7b\u7ba1\u7406**\n\n- \u8bf7\u6c42\u547d\u4ee4\u5386\u53f2\n\n- \u54cd\u5e94\u62a5\u6587\u5386\u53f2\n\n- \u5206\u522b\u7ba1\u7406\uff0c\u6e05\u6670\u660e\u4e86\n\n### 1.6 \u62a5\u6587\u7ed3\u6784\u53ef\u89c6\u5316\n\n**\u529f\u80fd\u8bf4\u660e**\uff1a\n\n\u751f\u6210\u7684\u6bcf\u4e2a\u62a5\u6587\uff0c\u90fd\u9644\u5e26\u7ed3\u6784\u89e3\u6790\uff1a\n\n**\u793a\u4f8b\uff08RTU \u8bf7\u6c42\uff09\uff1a**\n\n```\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 \u62a5\u6587\u7ed3\u6784\u89e3\u6790                        \u2502\n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n\u2502 \u4ece\u7ad9\u5730\u5740 (Slave Address): 01        \u2502\n\u2502 \u529f\u80fd\u7801 (Function Code): 03          \u2502\n\u2502 \u8d77\u59cb\u5730\u5740 (Start Address): 0000      \u2502\n\u2502 \u6570\u91cf (Quantity): 000A               \u2502\n\u2502 CRC \u6821\u9a8c (CRC Check): C40B          \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n\n```\n\n**\u793a\u4f8b\uff08TCP \u8bf7\u6c42\uff09\uff1a**\n\n```\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 \u62a5\u6587\u7ed3\u6784\u89e3\u6790                        \u2502\n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n\u2502 \u4e8b\u52a1\u6807\u8bc6\u7b26 (Transaction ID): 0001   \u2502\n\u2502 \u534f\u8bae\u6807\u8bc6\u7b26 (Protocol ID): 0000      \u2502\n\u2502 \u957f\u5ea6 (Length): 0006                 \u2502\n\u2502 \u5355\u5143\u6807\u8bc6\u7b26 (Unit ID): 01            \u2502\n\u2502 \u529f\u80fd\u7801 (Function Code): 03          \u2502\n\u2502 \u8d77\u59cb\u5730\u5740 (Start Address): 0000      \u2502\n\u2502 \u6570\u91cf (Quantity): 000A               \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n\n```\n\n## \u4e8c\u3001\u5b9e\u6218\u6848\u4f8b\uff1a\u5de5\u7a0b\u5e08\u7684\u771f\u5b9e\u4f7f\u7528\u573a\u666f\n\n### \u6848\u4f8b 1\uff1a\u8bfb\u53d6\u6e29\u5ea6\u4f20\u611f\u5668\u6570\u636e\n\n**\u573a\u666f**\uff1a\n\n- \u8bbe\u5907\uff1a\u67d0\u54c1\u724c\u6e29\u5ea6\u53d8\u9001\u5668\n\n- \u901a\u4fe1\uff1aRS485\uff08Modbus RTU\uff09\n\n- \u9700\u6c42\uff1a\u8bfb\u53d6 10 \u4e2a\u901a\u9053\u7684\u6e29\u5ea6\u503c\n\n**\u4f20\u7edf\u65b9\u5f0f**\uff1a\n\n- \u67e5\u624b\u518c\uff1a\u4fdd\u6301\u5bc4\u5b58\u5668\u5730\u5740 40001-40010\n\n\u624b\u52a8\u8ba1\u7b97\u62a5\u6587\uff1a\n\n- \u4ece\u7ad9\u5730\u5740\uff1a01\n\n- \u529f\u80fd\u7801\uff1a03\n\n- \u8d77\u59cb\u5730\u5740\uff1a40001-1=40000=0x9C40\n\n- \u6570\u91cf\uff1a10=0x000A\n\n- CRC \u6821\u9a8c\uff1a\u624b\u52a8\u7b97\u6216\u7528\u5728\u7ebf\u5de5\u5177\n\n- \u7528\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b\u53d1\u9001\n\n- \u6536\u5230\u54cd\u5e94\uff0c\u624b\u52a8\u89e3\u6790\n\n**\u8017\u65f6**\uff1a15-20 \u5206\u949f\n\n**\u4f7f\u7528\u5de5\u5177\u540e**\uff1a\n\n- \u6253\u5f00\u5de5\u5177\uff0c\u9009\u62e9 Modbus RTU\n\n\u8f93\u5165\u53c2\u6570\uff1a\n\n- \u4ece\u7ad9\u5730\u5740\uff1a01\n\n- \u529f\u80fd\u7801\uff1a03\n\n- \u8d77\u59cb\u5730\u5740\uff1a9C40\n\n- \u6570\u91cf\uff1a10\n\n- \u70b9\u51fb\"\u751f\u6210\u8bf7\u6c42\u547d\u4ee4\"\n\n- \u590d\u5236\u62a5\u6587\uff0c\u53d1\u9001\n\n- \u6536\u5230\u54cd\u5e94\uff0c\u7c98\u8d34\u5230\u89e3\u6790\u5668\n\n- \u81ea\u52a8\u89e3\u6790\u51fa 10 \u4e2a\u6e29\u5ea6\u503c\n\n**\u8017\u65f6**\uff1a2-3 \u5206\u949f\n\n**\u6548\u7387\u63d0\u5347**\uff1a6-10 \u500d\n\n### \u6848\u4f8b 2\uff1a\u6279\u91cf\u8bbe\u7f6e\u53d8\u9891\u5668\u53c2\u6570\n\n**\u573a\u666f**\uff1a\n\n- \u8bbe\u5907\uff1a\u67d0\u54c1\u724c\u53d8\u9891\u5668\n\n- \u901a\u4fe1\uff1aModbus RTU\n\n- \u9700\u6c42\uff1a\u6279\u91cf\u8bbe\u7f6e 20 \u4e2a\u53c2\u6570\n\n**\u4f20\u7edf\u65b9\u5f0f**\uff1a\n\n- \u9010\u4e2a\u53c2\u6570\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\uff08\u529f\u80fd\u7801 06\uff09\n\n- \u5199 20 \u6b21\uff0c\u6bcf\u6b21\u8ba1\u7b97\u62a5\u6587\n\n- \u5bb9\u6613\u51fa\u9519\uff0c\u91cd\u590d\u52b3\u52a8\n\n**\u4f7f\u7528\u5de5\u5177\u540e**\uff1a\n\n- \u9009\u62e9\u529f\u80fd\u7801 10\uff08\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\uff09\n\n\u6dfb\u52a0 20 \u4e2a\u5bc4\u5b58\u5668\uff1a\n\n- \u5730\u5740\uff1a\u81ea\u52a8\u8ba1\u7b97\n\n- \u6570\u636e\u7c7b\u578b\uff1a\u9009\u62e9\n\n- \u6570\u503c\uff1a\u8f93\u5165\n\n- \u4e00\u6b21\u751f\u6210\u62a5\u6587\n\n- \u53d1\u9001\uff0c\u5b8c\u6210\n\n**\u8017\u65f6**\uff1a\u4ece 1 \u5c0f\u65f6 \u2192 5 \u5206\u949f\n\n### \u6848\u4f8b 3\uff1a\u8c03\u8bd5\u4e0a\u4f4d\u673a\u8f6f\u4ef6\n\n**\u573a\u666f**\uff1a\n\n- \u5f00\u53d1\u7ec4\u6001\u738b\/WinCC \u9879\u76ee\n\n- \u9700\u8981\u6a21\u62df Modbus \u4ece\u7ad9\u8bbe\u5907\n\n- \u6d4b\u8bd5\u4e0a\u4f4d\u673a\u7a0b\u5e8f\u903b\u8f91\n\n**\u4f7f\u7528\u5de5\u5177**\uff1a\n\n- \u7528\u54cd\u5e94\u62a5\u6587\u751f\u6210\u5668\n\n- \u8bbe\u7f6e\u6a21\u62df\u6570\u636e\n\n- \u751f\u6210\u54cd\u5e94\u62a5\u6587\n\n- \u53d1\u9001\u7ed9\u4e0a\u4f4d\u673a\n\n- \u9a8c\u8bc1\u7a0b\u5e8f\u903b\u8f91\n\n**\u597d\u5904**\uff1a\n\n- \u65e0\u9700\u771f\u5b9e\u8bbe\u5907\n\n- \u53ef\u6a21\u62df\u5404\u79cd\u5f02\u5e38\n\n- \u63d0\u9ad8\u5f00\u53d1\u6548\u7387\n\n## \u4e09\u3001\u6280\u672f\u7ec6\u8282\uff1a\u5de5\u7a0b\u5e08\u5173\u5fc3\u7684\n\n### 3.1 CRC16 \u6821\u9a8c\u7b97\u6cd5\n\n**Modbus RTU \u4f7f\u7528 CRC16\uff08\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff09\uff1a**\n\n```\n\/\/ CRC16 \u8ba1\u7b97\uff08\u4f4e\u5b57\u8282\u5728\u524d\uff09\nfunction calcCRC16(bytes) {\n  let crc = 0xFFFF;\n  for (let i = 0; i < bytes.length; i++) {\n    crc ^= bytes[i];\n    for (let j = 0; j < 8; j++) {\n      if (crc & 0x0001) {\n        crc = (crc >> 1) ^ 0xA001;\n      } else {\n        crc >>= 1;\n      }\n    }\n  }\n  return crc; \/\/ \u4f4e\u5b57\u8282\u5728\u524d\n}\n\n```\n\n**\u793a\u4f8b**\uff1a\n\n```\n\u62a5\u6587\uff1a01 03 00 00 00 0A\nCRC\uff1aC4 0B\uff08\u4f4e\u5b57\u8282\u5728\u524d\uff09\n\u5b8c\u6574\uff1a01 03 00 00 00 0A C4 0B\n\n```\n\n### 3.2 LRC \u6821\u9a8c\u7b97\u6cd5\n\n**Modbus ASCII \u4f7f\u7528 LRC\uff08\u7eb5\u5411\u5197\u4f59\u6821\u9a8c\uff09\uff1a**\n\n```\n\/\/ LRC \u8ba1\u7b97\nfunction calcLRC(bytes) {\n  let sum = 0;\n  for (let i = 0; i < bytes.length; i++) {\n    sum += bytes[i];\n  }\n  const lrc = ((~sum) + 1) & 0xFF;\n  return lrc;\n}\n\n```\n\n**\u793a\u4f8b**\uff1a\n\n```\n\u62a5\u6587\uff1a01 03 00 00 00 0A\nLRC\uff1aFB\n\u5b8c\u6574\uff1a:01030000000AFB\n\n```\n\n### 3.3 \u5b57\u8282\u5e8f\u95ee\u9898\n\n**32 \u4f4d\u6570\u636e\uff08UINT32\/INT32\/FLOAT\uff09\u7684\u5b57\u8282\u5e8f\uff1a**\n\n\u5b57\u8282\u5e8f\u540d\u79f0\u793a\u4f8b\uff080x12345678\uff09ABBig Endian12 34 56 78BALittle Endian34 12 78 56CDABMixed56 78 12 34BADCMixed78 56 34 12\n\n**\u5de5\u5177\u652f\u6301\u81ea\u52a8\u8f6c\u6362\uff1a**\n\n- \u9009\u62e9\u5b57\u8282\u5e8f\n\n- \u8f93\u5165\u5341\u8fdb\u5236\u503c\n\n- \u81ea\u52a8\u8f6c\u6362\u4e3a\u5bc4\u5b58\u5668\u503c\n\n### 3.4 Modbus TCP \u7684 MBAP \u5934\n\n**Modbus TCP \u62a5\u6587\u7ed3\u6784\uff1a**\n\n```\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 MBAP \u5934\uff087 \u5b57\u8282\uff09                   \u2502\n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n\u2502 \u4e8b\u52a1\u6807\u8bc6\u7b26\uff082 \u5b57\u8282\uff09                \u2502\n\u2502 \u534f\u8bae\u6807\u8bc6\u7b26\uff082 \u5b57\u8282\uff09=0              \u2502\n\u2502 \u957f\u5ea6\uff082 \u5b57\u8282\uff09                      \u2502\n\u2502 \u5355\u5143\u6807\u8bc6\u7b26\uff081 \u5b57\u8282\uff09=\u4ece\u7ad9\u5730\u5740       \u2502\n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n\u2502 PDU\uff08\u529f\u80fd\u7801 + \u6570\u636e\uff09                \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n\n```\n\n**\u793a\u4f8b**\uff1a\n\n```\n00 01 00 00 00 06 01 03 00 00 00 0A\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500 \u6570\u91cf\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u6570\u91cf\u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u8d77\u59cb\u5730\u5740\u9ad8\u5b57\u8282\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u529f\u80fd\u7801\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u5355\u5143\u6807\u8bc6\u7b26\n\u2502  \u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u957f\u5ea6\uff086 \u5b57\u8282\uff09\n\u2502  \u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u534f\u8bae\u6807\u8bc6\u7b26\uff080=Modbus\uff09\n\u2502  \u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4e8b\u52a1\u6807\u8bc6\u7b26\u4f4e\u5b57\u8282\n\u2502  \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4e8b\u52a1\u6807\u8bc6\u7b26\u9ad8\u5b57\u8282\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 MBAP \u5934\n\n```\n\n## \u56db\u3001\u7528\u6237\u53cd\u9988\uff1a\u5de5\u7a0b\u5e08\u600e\u4e48\u8bf4\n\n**\u53cd\u9988 1\uff1a\u81ea\u52a8\u5316\u5de5\u7a0b\u5e08\uff085 \u5e74\u7ecf\u9a8c\uff09**\n\n\"\u4ee5\u524d\u624b\u52a8\u7b97 Modbus \u62a5\u6587\uff0c\u7ecf\u5e38\u7b97\u9519\u3002\u73b0\u5728\u7528\u8fd9\u4e2a\u5de5\u5177\uff0c\u70b9\u51e0\u4e0b\u5c31\u751f\u6210\uff0cCRC \u81ea\u52a8\u8ba1\u7b97\uff0c\u592a\u65b9\u4fbf\u4e86\uff01\u6548\u7387\u81f3\u5c11\u63d0\u5347 5 \u500d\u3002\"\n\n**\u53cd\u9988 2\uff1a\u7535\u6c14\u5de5\u7a0b\u5e08\uff0810 \u5e74\u7ecf\u9a8c\uff09**\n\n\"\u652f\u6301\u4e09\u79cd\u534f\u8bae\uff0c\u4e0d\u7528\u5207\u6362\u5de5\u5177\u4e86\u3002\u7279\u522b\u662f TCP \u7684 MBAP \u5934\uff0c\u4ee5\u524d\u8001\u662f\u641e\u6df7\uff0c\u73b0\u5728\u81ea\u52a8\u751f\u6210\uff0c\u4e0d\u4f1a\u9519\u3002\"\n\n**\u53cd\u9988 3\uff1aPLC \u5de5\u7a0b\u5e08\uff088 \u5e74\u7ecf\u9a8c\uff09**\n\n\"\u54cd\u5e94\u62a5\u6587\u751f\u6210\u5668\u5f88\u597d\u7528\uff0c\u6a21\u62df\u4ece\u7ad9\u8bbe\u5907\u6d4b\u8bd5 PLC \u7a0b\u5e8f\uff0c\u65e0\u9700\u771f\u5b9e\u8bbe\u5907\uff0c\u5f00\u53d1\u6548\u7387\u63d0\u9ad8\u5f88\u591a\u3002\"\n\n**\u53cd\u9988 4\uff1a\u8c03\u8bd5\u5de5\u7a0b\u5e08\uff083 \u5e74\u7ecf\u9a8c\uff09**\n\n\"\u5386\u53f2\u8bb0\u5f55\u529f\u80fd\u5f88\u5b9e\u7528\uff0c\u6628\u5929\u8c03\u597d\u7684\u62a5\u6587\uff0c\u4eca\u5929\u76f4\u63a5\u590d\u5236\uff0c\u4e0d\u7528\u91cd\u65b0\u7b97\u3002\u5fae\u4fe1\u5206\u4eab\u4e5f\u5f88\u65b9\u4fbf\uff0c\u53d1\u7ed9\u540c\u4e8b\u4e00\u8d77\u8c03\u8bd5\u3002\"\n\n## \u4e94\u3001\u5199\u5728\u6700\u540e\n\n\u6211\u505a\u8fd9\u4e2a\u5de5\u5177\uff0c\u4e0d\u662f\u4e3a\u4e86\u53d6\u4ee3\u5de5\u7a0b\u5e08\u3002\n\n**\u800c\u662f\u4e3a\u4e86\u89e3\u653e\u4eba\u529b\u3002**\n\n\u8ba9\u5de5\u7a0b\u5e08\u4e0d\u518d\u624b\u52a8\u8ba1\u7b97\u62a5\u6587\uff0c\u4e0d\u518d\u8bb0\u590d\u6742\u7684\u516c\u5f0f\uff0c\u4e0d\u518d\u4e3a CRC \u6821\u9a8c\u53d1\u6101\u3002\n\n\u8ba9\u5927\u5bb6\u628a\u65f6\u95f4\u82b1\u5728\u66f4\u6709\u4ef7\u503c\u7684\u4e8b\u60c5\u4e0a\uff1a\n\n- \u7cfb\u7edf\u67b6\u6784\u8bbe\u8ba1\n\n- \u63a7\u5236\u903b\u8f91\u4f18\u5316\n\n- \u73b0\u573a\u95ee\u9898\u89e3\u51b3\n\n**\u5de5\u5177\u4e0d\u662f\u654c\u4eba\uff0c\u800c\u662f\u5e2e\u624b\u3002**\n\n\u5584\u7528\u5de5\u5177\u7684\u5de5\u7a0b\u5e08\uff0c\u4f1a\u6dd8\u6c70\u4e0d\u7528\u5de5\u5177\u7684\u5de5\u7a0b\u5e08\u3002\n\n\u5e0c\u671b\u8fd9\u4e2a\u5de5\u5177\u80fd\u5e2e\u5230\u66f4\u591a\u540c\u884c\u3002\n\n## \u9644\u5f55\uff1a\u4f7f\u7528\u65b9\u5f0f\n\n**\u4f7f\u7528\u65b9\u5f0f 1\uff1a\u5fae\u4fe1\u626b\u7801**\n\n \n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/03\/20260105173518752.webp)\n\n**\u4f7f\u7528\u65b9\u5f0f 2\uff1a\u5fae\u4fe1\u641c\u7d22**\n\n\u641c\u7d22\"Modbus \u8c03\u8bd5\u52a9\u624b\"\n\n**\u5173\u4e8e\u4f5c\u8005**\n\n20 \u5e74\u5de5\u4e1a\u81ea\u52a8\u5316\u7ecf\u9a8c\uff0c\u5f85\u8fc7\u8bbe\u5907\u5382\u5546\u3001\u96c6\u6210\u5546\u3001\u7532\u65b9\u3002\n\n\u73b0\u4e13\u6ce8\u4e8e\u5de5\u4e1a\u7269\u8054\u7f51\u3001\u8fb9\u7f18\u8ba1\u7b97\u3001\u667a\u80fd\u63a7\u5236\u3002\n\n**\u6b22\u8fce\u4ea4\u6d41\uff1a**\n\n- \ud83d\udce7 \u90ae\u7bb1\uff1a[support@modbus.cn](mailto:support@modbus.cn)\n\n- \ud83d\udcac \u5fae\u4fe1\u7fa4\uff1a\u626b\u7801\u6dfb\u52a0\u52a9\u624b\u5165\u7fa4\n\n\u5982\u679c\u89c9\u5f97\u6709\u7528\uff0c\u6b22\u8fce **\u70b9\u8d5e + \u5728\u770b + \u8f6c\u53d1** \u652f\u6301\u4e00\u4e0b\uff01\n\n\u8f6c\u53d1\u7ed9\u66f4\u591a\u7535\u6c14\u5de5\u7a0b\u5e08\uff0c\u4e00\u8d77\u7528\u5de5\u5177\u63d0\u6548\uff01\n\n---\n*modbus.cn*\n"