"# \u65e0\u5237\u7535\u673a\u9a71\u52a8\u5668Modbus\u00a0\u901a\u8baf\u534f\u8bae\u53ca\u5bc4\u5b58\u5668\u8bf4\u660e\n\n> 2024-01-15 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/26570.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/01\/20240115230454661.jpg)\n\n## 1. \u901a\u8baf\u534f\u8bae\n\n\u672c\u9a71\u52a8\u5668\u4f7f\u7528 MODBUS-RTU(\u56fd\u6807 GB\/T19582-2008)\u901a\u8baf\u534f\u8bae\u8fdb\u884c\u901a\u8baf\uff0c \u652f\u6301\u4e00\u53f0\u4e3b\u7ad9\u63a7\u5236\u591a\u4e2a\u4ece\u7ad9\uff08\u5373\u9a71\u52a8\u5668\uff09\uff0c\u652f\u6301\u6700\u591a 255 \u4e2a\u4ece\u7ad9\uff0c\u652f\u6301\u901a\u8baf\u5e7f\u64ad\uff08\u4ece\u7ad9\u5730\u5740\u4e3a 0 \u89c6\u4e3a\u5e7f\u64ad\u5e27\uff09\uff0c\u4e3b\u7ad9\u53ef\u4ee5\u662f\u5355\u7247\u673a\u3001PLC \u6216 PC \u673a\u7b49\u3002\n\n### 1.1 \u901a\u8baf\u53c2\u6570\n\n\u9ed8\u8ba4\u901a\u8baf\u53c2\u6570\uff1a\n\n- > \u6ce2\u7279\u7387\u56fa\u5b9a\u4e3a 9600bps\u3002\n\n- > \u6570\u636e\u4f4d\u4e3a 8 \u4f4d\u3002\n\n- > \u6821\u9a8c\u4e3a\u201c\u65e0+1 \u505c\u6b62\u4f4d\u201d\u3002\n\n- > \u4ece\u7ad9\u5730\u5740\u56fa\u5b9a\u4e3a 1\u3002 \u7528\u6237\u81ea\u5b9a\u4e49\u901a\u8baf\u53c2\u6570\uff1a\n\n- > \u6ce2\u7279\u7387\u53ef\u914d\u7f6e\u8303\u56f4 9600-115200bps\u3002\n\n- > \u6570\u636e\u4f4d\u56fa\u5b9a\u4e3a 8 \u4f4d\u3002\n\n- > \u6821\u9a8c\u65b9\u5f0f\u53ef\u914d\u7f6e\u4e3a\uff1a \u201c\u5076+1 \u505c\u6b62\u4f4d\u201d\u3001\u201c\u5947+1 \u505c\u6b62\u4f4d\u201d\u548c\u201c\u65e0+2 \u505c\u6b62\u4f4d\u201d\u3002\n\n- > \u4ece\u7ad9\u5730\u5740\u53ef\u8bbe\u7f6e\u8303\u56f4 1~255\u3002\n\n\u5f53\u6570\u636e\u5e27\u901a\u4fe1\u4e2d\u65ad\u8d85\u8fc7 4 \u4e2a\u5b57\u8282\u7684\u6253\u5305\u65f6\u95f4\u5224\u5b9a\u4e3a\u5e27\u63a5\u6536\u8d85\u65f6\u3002\u5f53\u53d1\u751f\u5e27\u8d85\u65f6\u7684\u65f6\u5019\uff0c\u4e4b\u524d\u63a5\u6536\u5230\u7684\u6570\u636e\u5c06\u88ab \u89c6\u4e3a\u65e0\u6548\u3002\n\n### 1.2 MODBUS-RTU \u5e27\u683c\u5f0f\n\n\u672c\u9a71\u52a8\u5668\u652f\u6301 MODBUS \u7684 0x03(\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668)\u30010x06(\u5199\u5355\u4e2a\u5bc4\u5b58\u5668)\u548c 0x10(\u5199\u591a\u4e2a\u5bc4\u5b58\u5668)\u529f\u80fd\u7801\u3002\n\n#### 1.2.1 0x03 \u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5****6****7****8**\u5185\u5bb9ADR0x03\u8d77\u59cb\u5bc4\u5b58\u5668 \u9ad8\u5b57\u8282\u8d77\u59cb\u5bc4\u5b58\u5668 \u4f4e\u5b57\u8282\u5bc4\u5b58\u5668\u6570\u9ad8\u5b57\u8282\u5bc4\u5b58\u5668\u6570 \u4f4e\u5b57\u8282CRC \u4f4e\u5b57\u8282CRC  \u9ad8\u5b57\u8282\n\n\u7b2c 1 \u5b57\u8282 ADR\uff1a \u4ece\u7ad9\u5730\u5740\u7801\uff08=001\uff5e254\uff09\u3002\n\n\u7b2c 2 \u5b57\u8282 0x03\uff1a \u8bfb\u5bc4\u5b58\u5668\u503c\u529f\u80fd\u7801\u3002\n\n\u7b2c 3\u30014 \u5b57\u8282\uff1a \u8981\u8bfb\u7684\u5bc4\u5b58\u5668\u5f00\u59cb\u5730\u5740\u3002\n\n\u7b2c 5\u30016 \u5b57\u8282\uff1a \u8981\u8bfb\u7684\u5bc4\u5b58\u5668\u6570\u91cf\u3002\n\n\u7b2c 7\u30018 \u5b57\u8282\uff1a \u4ece\u5b57\u8282 1 \u5230 6 \u7684 CRC16 \u6821\u9a8c\u7801 \u3002\n\n\u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4**** **\u3001**5****6**** **\u3001**7**\u2026**M-1**\u3001**M****M+1****M+2**\u5185\u5bb9ADR0x03\u5b57\u8282\u603b\u6570\u5bc4\u5b58\u5668 \u6570\u636e 1\u5bc4\u5b58\u5668 \u6570\u636e 2\u2026\u5bc4\u5b58\u5668\u6570\u636e MCRC \u4f4e\u5b57\u8282CRC \u9ad8 \u5b57\u8282\n\n\u7b2c 1 \u5b57\u8282 ADR\uff1a \u4ece\u7ad9\u5730\u5740\u7801\uff08=001\uff5e254\uff09\u3002\n\n\u7b2c 2 \u5b57\u8282 0x03\uff1a \u8fd4\u56de\u8bfb\u529f\u80fd\u7801\u3002\n\n\u7b2c 3 \u5b57\u8282\uff1a\u4ece 4 \u5230 M\uff08\u5305\u62ec 4 \u53ca M\uff09\u7684\u5b57\u8282\u603b\u6570\u3002\n\n\u7b2c 4 \u5230 M \u5b57\u8282\uff1a  \u5bc4\u5b58\u5668\u6570\u636e\u3002\n\n\u7b2c M\uff0b1\u3001M+2 \u5b57\u8282\uff1a \u4ece\u5b57\u8282 1 \u5230 M \u7684 CRC16 \u6821\u9a8c\u7801\u3002\n\n\u5f53\u4ece\u7ad9\u63a5\u6536\u9519\u8bef\u65f6\uff0c \u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5**\u5185\u5bb9ADR0x83\u5f02\u5e38\u7801CRC \u4f4e\u5b57\u8282CRC \u9ad8\u5b57\u8282\n\n\u7b2c 1 \u5b57\u8282 \u7b2c 2 \u5b57\u8282 \u7b2c 3 \u5b57\u8282\n\nADR\uff1a \u4ece\u7ad9\u5730\u5740\u7801\uff08=001\uff5e254\uff09\u3002\n\n0x83\uff1a \u8bfb\u5bc4\u5b58\u5668\u503c\u51fa\u9519\u3002\n\n[\u5f02\u5e38\u7801\uff1a \u89c1\u8868 **1.1**\u3002](#bookmark20)\n\n\u7b2c 4\u30015 \u5b57\u8282\uff1a \u4ece\u5b57\u8282 1 \u5230 3 \u7684 CRC16 \u6821\u9a8c\u7801\u3002\n\n#### 1.2.2 0x06 \u5199\u5355\u4e2a\u5bc4\u5b58\u5668\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5****6****7****8**\u5185\u5bb9ADR0x06\u5bc4\u5b58\u5668\u9ad8 \u5b57\u8282\u5730\u5740\u5bc4\u5b58\u5668\u4f4e \u5b57\u8282\u5730\u5740\u6570\u636e\u9ad8\u5b57\u8282\u6570\u636e\u4f4e\u5b57\u8282CRC \u7801\u4f4e\u5b57\u8282CRC \u7801\u9ad8\u5b57\u8282\n\n\u5f53\u4ece\u7ad9\u63a5\u6536\u6b63\u786e\u65f6\uff0c \u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5****6****7****8**\u5185\u5bb9ADR0x06\u5bc4\u5b58\u5668\u9ad8 \u5b57\u8282\u5730\u5740\u5bc4\u5b58\u5668\u4f4e \u5b57\u8282\u5730\u5740\u6570\u636e\u9ad8\u5b57\u8282\u6570\u636e\u4f4e\u5b57\u8282CRC \u7801\u4f4e\u5b57\u8282CRC \u7801\u9ad8\u5b57\u8282\n\n\u5f53\u4ece\u7ad9\u63a5\u6536\u9519\u8bef\u65f6\uff0c \u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5**\u5185\u5bb9ADR0x86\u5f02\u5e38\u7801CRC \u4f4e\u5b57\u8282CRC \u9ad8\u5b57\u8282\n\n\u7b2c 1 \u5b57\u8282 \u7b2c 2 \u5b57\u8282 \u7b2c 3 \u5b57\u8282\n\nADR\uff1a \u4ece\u7ad9\u5730\u5740\u7801\uff08=001\uff5e254\uff09\u3002\n\n0x86\uff1a \u5199\u5bc4\u5b58\u5668\u503c\u51fa\u9519\u529f\u80fd\u7801\u3002\n\n[\u5f02\u5e38\u7801\uff1a \u89c1\u8868 **1.1**\u3002](#bookmark21)\n\n\u7b2c 4\u30015 \u5b57\u8282\uff1a \u4ece\u5b57\u8282 1 \u5230 3 \u7684 CRC16 \u6821\u9a8c\u7801\u3002\n\n#### 1.2.3 0x10 \u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u503c\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5****6****7**\u5185\u5bb9ADR0x10\u8d77\u59cb\u5bc4\u5b58\u5668 \u9ad8\u5b57\u8282\u5730\u5740\u8d77\u59cb\u5bc4\u5b58\u5668 \u4f4e\u5b57\u8282\u5730\u5740\u5bc4\u5b58\u5668\u6570 \u91cf\u9ad8\u5b57\u8282\u5bc4\u5b58\u5668\u6570 \u91cf\u4f4e\u5b57\u8282\u6570\u636e\u5b57 \u8282\u603b\u6570\n\n\u5b57\u8282**8,9****10,11****N,N+1****N+2****N+3**\u5185\u5bb9\u5bc4\u5b58\u5668\u6570\u636e 1\u5bc4\u5b58\u5668\u6570\u636e 2\u5bc4\u5b58\u5668\u6570\u636e MCRC \u7801\u4f4e\u5b57\u8282CRC \u7801\u9ad8\u5b57\u8282\n\n\u5f53\u4ece\u7ad9\u63a5\u6536\u6b63\u786e\u65f6\uff0c \u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5****6****7****8**\u5185\u5bb9ADR0x10\u5bc4\u5b58\u5668\u9ad8 \u5b57\u8282\u5730\u5740\u5bc4\u5b58\u5668\u4f4e \u5b57\u8282\u5730\u5740\u5bc4\u5b58\u5668\u6570 \u91cf\u9ad8\u5b57\u8282\u5bc4\u5b58\u5668\u6570 \u91cf\u4f4e\u5b57\u8282CRC \u7801\u4f4e\u5b57\u8282CRC \u7801\u9ad8\u5b57\u8282\n\n\u5f53\u4ece\u7ad9\u63a5\u6536\u9519\u8bef\u65f6\uff0c\u4ece\u7ad9\u56de\u9001\uff1a\n\n\u5b57\u8282**1****2****3****4****5**\u5185\u5bb9ADR0x90\u5f02\u5e38\u7801CRC \u4f4e\u5b57\u8282CRC \u9ad8\u5b57\u8282\n\n\u7b2c 1 \u5b57\u8282 \u7b2c 2 \u5b57\u8282 \u7b2c 3 \u5b57\u8282\n\nADR\uff1a 0x90\uff1a  \u5f02\u5e38\u7801\uff1a\n\n\u4ece\u7ad9\u5730\u5740\u7801\uff08=001\uff5e254\uff09\u3002\n\n\u5199\u5bc4\u5b58\u5668\u503c\u51fa\u9519\u3002\n\n[\u89c1\u8868 **1.1**\u3002](#bookmark22)\n\n\u7b2c 4\u30015 \u5b57\u8282\uff1a \u4ece\u5b57\u8282 1 \u5230 3 \u7684 CRC16 \u6821\u9a8c\u7801\u3002\n\n#### 1.2.4 \u9519\u8bef\u5f02\u5e38\u7801\n\nMODBUS \u5f02\u5e38\u7801 [\uff1a\u5982\u8868 **1.1**** **\u6240](#bookmark22)\u793a\n\n\u8868 1. 1 MODBUS \u5f02\u5e38\u7801\u8868\n\n\u5f02\u5e38\u7801\u542b\u4e490x01\u975e\u6cd5\u529f\u80fd\u78010x02\u975e\u6cd5\u6570\u636e\u5730\u57400x03\u975e\u6cd5\u6570\u636e\u503c0x04\u4ece\u7ad9\u8bbe\u5907\u6545\u969c0x05\u8bf7\u6c42\u5df2\u88ab\u786e\u8ba4\uff0c\u4f46\u9700\u8981\u8f83\u957f\u65f6\u95f4\u6765\u5904\u7406\u8bf7\u6c420x06\u4ece\u8bbe\u5907\u5fd90x08\u5b58\u50a8\u5947\u5076\u6027\u5dee\u95190x0A\u4e0d\u53ef\u7528\u7684\u7f51\u51730x0B\u7f51\u5173\u76ee\u6807\u8bbe\u5907\u54cd\u5e94\u5931\u8d25\n\n## 2. \u6807\u51c6\u5bc4\u5b58\u5668\u5b9a\u4e49\n\n### 2.1 \u8bbe\u5907\u63cf\u8ff0\u4fe1\u606f\u5bc4\u5b58\u5668\n\n[\u8bbe\u5907\u63cf\u8ff0\u4fe1\u606f\u5bc4\u5b58\u5668\u5982\u8868 **2.1**** **\u6240](#bookmark9)\u793a\u3002\n\n\u8868 2. 1 \u8bbe\u5907\u63cf\u8ff0\u4fe1\u606f\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce80x0000 (0)\u8bbe\u5907\u6807\u8bc6\u53f7 0x03\u6bcf\u4e2a\u578b\u53f7\u90fd\u6709\u5bf9\u5e94\u7684\u8bbe\u5907\u6807\u8bc6\u53f70x0001 (1)\u8bbe\u5907\u7248\u672c 0x03\u9ad8\u5b57\u8282\u4e3a\u4e3b\u7248\u672c\u53f7\uff0c\u4f4e\u5b57\u8282\u4e3a\u526f\u7248\u672c\u53f70x0002 (2)\u6700\u5927\u7535\u6d41 0x03\u6570\u503c\u4e58\u4ee50.01\u4e3a\u7535\u6d41\u503c\uff0c\u5355\u4f4d\u4e3aA\n\n 0x0003~0x0007(3)~(7) \u4fdd\u7559  0x03  \n\n2.2 \u5b9e\u65f6\u72b6\u6001\u5bc4\u5b58\u5668\n\n[\u5b9e\u65f6\u72b6\u6001\u5bc4\u5b58\u5668\u5982\u8868 **2.2**** **\u6240](#bookmark10)\u793a\u3002\n\n\u8868 2.2 \u5b9e\u65f6\u72b6\u6001\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce80x0008 (8)\u5b9e\u65f6\u7535\u6d410\uff5e655350x03\u6570\u503c\u4e58\u4ee5 0.01 \u4e3a\u7535\u6d41\u503c\uff0c\u5355\u4f4d\u4e3a A0x0009 (9)\u5b9e\u65f6\u901f\u5ea6\u4e4b\u9ad8\u534a\u5b57 -110000~110000 0x03 \u5b9e\u65f6\u8f6c\u901f,\u5355\u4f4d\u4e3a RPM0x000A (10)\u5b9e\u65f6\u901f\u5ea6\u4e4b\u4f4e\u534a\u5b57        0x000B (11)        \u9519\u8bef\u72b6\u6001         0~13         0x030 \u65e0\u9519\u8bef1\uff1a\u5835\u8f6c\u505c\u673a2\uff1a\u76f8\u5e8f\u672a\u5b66\u4e603\uff1a\u76f8\u4f4d\u5f02\u5e384\uff1a\u76f8\u7ebf\u8fc7\u6d415\uff1a\u6bcd\u7ebf\u8fc7\u6d416\uff1a\u7535\u538b\u8fc7\u9ad87\uff1a\u7535\u538b\u8fc7\u4f4e\uff0c8\uff1a\u76f8\u4f4d\u5b66\u4e60\u5f02\u5e389\uff1a\u8fc7\u8f7d\u5f02\u5e3810\uff1a485 \u901a\u4fe1\u4e2d\u65ad11\uff1aCAN \u901a\u8baf\u4e2d\u65ad12\uff1a\u6bcd\u7ebf\u7535\u538b\u8fc7\u9ad813\uff1a\u6e29\u5ea6\u8fc7\u9ad8\uff0c14\uff1a\u65e0\u611f\u542f\u52a8\u5931\u8d2515\uff1a\u76f8\u7535\u6d41\u5f02\u5e380x000C (12)\u5185\u90e8\u7535\u4f4d\u5668\u7535\u538b0\uff5e33000x03\u5355\u4f4d\u4e3a mV0x000D (13)\u5916\u90e8\u4fe1\u53f7\u7535\u538b0\uff5e100000x03\u5355\u4f4d\u4e3a mV0x000E (14)\u4fdd\u7559   0x000F (15)\u4fdd\u7559    0x0010 (16) \u4f7f\u80fd\u7535\u5e73 0,1 0x030\uff1a\u4f4e\u7535\u5e731\uff1a\u9ad8\u7535\u5e73 0x0011 (17) \u5239\u8f66\u7535\u5e73 0,1 0x030\uff1a\u4f4e\u7535\u5e731\uff1a\u9ad8\u7535\u5e73 0x0012 (18) \u65b9\u5411\u7535\u5e73 0,1 0x030\uff1a\u4f4e\u7535\u5e731\uff1a\u9ad8\u7535\u5e73\n\n                        0x0013 (19)   \u63a7\u5236\u6a21\u5f0f                 0x07\uff0c0x09\uff0c0x19\uff0c0x01\uff0c0x11\uff0c0x0a\uff0c0x1a\uff0c0x02\uff0c0x12\uff0c0x0b\uff0c0x1b\uff0c0x03\uff0c0x13\uff0c0x0c\uff0c0x1c\uff0c0x04\uff0c0x14\uff0c0x0d\uff0c0x1d\uff0c0x05\uff0c0x15\uff0c0x08\uff0c0x18\uff0c0x00\uff0c0x10\uff0c0x030-4 \u4f4d\u4e2d\u4ece\u4f4e\u5230\u9ad8\u5b9a\u4e49\uff1a\u2460\u7b2c 4 \u4f4d\u8868\u793a\u65e0\u611f 0 \u6216\u6709\u611f 1\uff0c\u2461\u7b2c 3 \u4f4d\u8868\u793a\u5f00\u73af 0 \u6216\u95ed\u73af 1\uff0c\u2462\u7b2c 0-2 \u4f4d\u8868\u793a\u6a21\u5f0f\uff1a\u76f8\u5e8f\u5b66\u4e60\uff08111\uff09\uff0c\u901a\u8baf\u63a7\u5236\uff08000\uff09\uff0c\u5185\u90e8\u7535\u4f4d\u5668\uff08001\uff09\uff0c\u6a21\u62df\u91cf\uff08010\uff09\uff0cPWM\uff08011\uff09,\u822a\u6a21 PWM\uff08100\uff09,\u6447\u6746\uff08101\uff09\u2463\u53d6\u503c\u610f\u4e49\uff1a0x07\uff1a\u76f8\u5e8f\u5b66\u4e60\uff0c 0x09\uff1a\u65e0\u611f\/\u95ed\u73af\/\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\uff0c0x19\uff1a\u6709\u611f\/\u95ed\u73af\/\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\uff0c0x01\uff1a\u65e0\u611f\/\u5f00\u73af\/\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\uff0c0x11\uff1a\u6709\u611f\/\u5f00\u73af\/\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\uff0c 0x0a\uff1a\u65e0\u611f\/\u95ed\u73af\/\u6a21\u62df\u91cf\u63a7\u5236\uff0c0x1a\uff1a\u6709\u611f\/\u95ed\u73af\/\u6a21\u62df\u91cf\u63a7\u5236\uff0c0x02\uff1a\u65e0\u611f\/\u5f00\u73af\/\u6a21\u62df\u91cf\u63a7\u5236\uff0c0x12\uff1a\u6709\u611f\/\u5f00\u73af\/\u6a21\u62df\u91cf\u63a7\u5236\uff0c 0x0b\uff1a\u65e0\u611f\/\u95ed\u73af\/PWM \u63a7\u5236\uff0c0x1b\uff1a\u6709\u611f\/\u95ed\u73af\/PWM \u63a7\u5236\uff0c0x03\uff1a\u65e0\u611f\/\u5f00\u73af\/PWM \u63a7\u5236\uff0c0x13\uff1a\u6709\u611f\/\u5f00\u73af\/PWM \u63a7\u5236\uff0c 0x0c\uff1a\u65e0\u611f\/\u95ed\u73af\/\u822a\u6a21 PWM \u63a7\u5236\uff0c0x1c\uff1a\u6709\u611f\/\u95ed\u73af\/\u822a\u6a21 PWM \u63a7\u5236\uff0c0x04\uff1a\u65e0\u611f\/\u5f00\u73af\/\u822a\u6a21 PWM \u63a7\u5236\uff0c0x14\uff1a\u6709\u611f\/\u5f00\u73af\/\u822a\u6a21 PWM \u63a7\u5236\uff0c 0x0d\uff1a\u65e0\u611f\/\u95ed\u73af\/\u6447\u6746\u63a7\u5236\uff0c0x1d\uff1a\u6709\u611f\/\u95ed\u73af\/\u6447\u6746\u63a7\u5236\uff0c0x05\uff1a\u65e0\u611f\/\u5f00\u73af\/\u6447\u6746\u63a7\u5236\uff0c0x15\uff1a\u6709\u611f\/\u5f00\u73af\/\u6447\u6746\u63a7\u5236\uff0c 0x08\uff1a\u65e0\u611f\/\u95ed\u73af\/\u901a\u8baf\u63a7\u5236\uff0c0x18\uff1a\u6709\u611f\/\u95ed\u73af\/\u901a\u8baf\u63a7\u5236\uff0c0x00\uff1a\u65e0\u611f\/\u5f00\u73af\/\u901a\u8baf\u63a7\u5236\uff0c0x10\uff1a\u6709\u611f\/\u5f00\u73af\/\u901a\u8baf\u63a7\u5236\uff0c0x0014(20)\u8d1f\u8f7d\u73870\uff5e10000x03\u6570\u503c\u4e58\u4ee5 0.1%\u4e3a PWM \u767e\u5206\u6bd4\uff0c\u5355\u4f4d\u4e3a\u20300x0015(21)\u8f93\u5165 PWM \u5360\u7a7a\u6bd40\uff5e10000x03\u6570\u503c\u4e58\u4ee5 0.1%\u4e3a\u8f93\u5165 PWM \u5360\u7a7a\u6bd4\uff0c\u5355\u4f4d\u4e3a\u20300x0016(22)\u7535\u538b0\uff5e1000x03\u7535\u6e90\u7535\u538b\uff0c\u5355\u4f4d\u4e3a V\n\n0x0017(23)\u6e29\u5ea6-200\uff5e2000x03\u7535\u8def\u677f\u6e29\u5ea6\uff0c\u5355\u4f4d\u4e3a\u21030x0018(24)\u4fdd\u7559   \n\n### 2.3  \u7535\u673a\u63a7\u5236\u5bc4\u5b58\u5668\n\n\u7535\u673a\u63a7\u5236\u5bc4\u5b58\u5668[\u5982\u8868 **2.3**** **\u6240](#bookmark11)\u793a\u3002\n\n\u8868 2.3 \u7535\u673a\u63a7\u5236\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce8 0x0020 (32) \u505c\u6b62 0, 1, 2 0x03 0x060\uff1a\u6b63\u5e38\u505c\u6b621\uff1a\u7d27\u6025\u5236\u52a82\uff1a\u81ea\u7531\u505c\u6b620x0021 (33)\u8bbe\u5b9a\u76ee\u6807\u53c2\u6570\u4e4b\u9ad8\u534a\u5b57\u95ed\u73af\uff1a-\u6700\u9ad8\u8f6c\u901f~ \u6700\u9ad8\u8f6c\u901f\u5f00\u73af\uff1a-1000~1000  0x03 0x06 0x10\u5f53\u901f\u5ea6\u63a7\u5236\u4e3a\u95ed\u73af\uff0c\u4ee3\u8868\u901f\u5ea6\uff0c\u5219\u5355\u4f4d\u4e3a RPM\uff1b\u5f53\u901f\u5ea6\u63a7\u5236\u4e3a\u5f00\u73af\uff0c\u4ee3\u8868 PWM\uff0c\u6570\u503c\u4e58\u4ee5 0.1%\u4e3a PWM \u767e\u5206\u6bd4\u3002\u6b63\u6570\u8868\u793a\u6b63\u8f6c\uff0c\u8d1f\u6570\u8868\u793a\u53cd\u8f6c\uff0c 0 \u6b63\u5e38\u505c\u6b620x0022 (34)\u8bbe\u5b9a\u76ee\u6807\u53c2\u6570\u4e4b\u4f4e\u534a\u5b57 0x0023 (35) \u6d4b\u8bd5\u63a7\u5236 0, 1 0x03 0x060\uff1a\u53d6\u6d88\u6d4b\u8bd5\uff0c1\uff1a\u76f8\u5e8f\u5b66\u4e60 0x0024 (36) \u8f93\u51fa\u63a7\u5236 0, 1 0x03 0x060\uff1a\u8f93\u51fa\u4f4e\u7535\u5e731\uff1a\u8f93\u51fa\u9ad8\u7535\u5e730x0025~0x27(37)~ (39) \u4fdd\u7559   \n\n### 2.4  \u7535\u673a\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n[\u7535\u673a\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\u5982\u8868 **2.4**** **\u6240](#bookmark12)\u793a\u3002\n\n\u8868 2.4 \u7535\u673a\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce80x0028 (40)\u7535\u673a\u989d\u5b9a\u7535\u6d410~15000x03 0x06 0x10\u6570\u503c\u4e58\u4ee5 0.01 \u4e3a\u7535\u6d41\u503c\uff0c \u5355\u4f4d\u4e3a A0x0029 (41)\u7535\u673a\u6700\u5927\u8f6c\u901f\u4e4b\u9ad8\u534a\u5b57 0\uff5e110000 0x03 0x06 0x10 \u5355\u4f4d\u4e3a RPM0x002A (42)\u7535\u673a\u6700\u5927\u8f6c\u901f\u4e4b\u4f4e\u534a\u5b570x002B (43)\u7535\u673a\u6700\u5c0f\u8f6c\u901f\u4e4b\u9ad8\u534a\u5b57 0\uff5e110000 0x03 0x06 0x10\u5355\u4f4d\u4e3a RPM\uff0c\u4e00\u822c\u8bbe\u7f6e\u5728 200RPM \u4ee5\u4e0b0x002C (44)\u7535\u673a\u6700\u5c0f\u8f6c\u901f\u4e4b\u4f4e\u534a\u5b57 0x002D (45)\u7535\u673a\u6781\u5bf9\u6570 0~65535 0x03 0x06 0x10\u5b9a\u5b50\u5357\u5317\u78c1\u6781\u5bf9\u6570\uff0c\u662f\u78c1 \u6781\u7684\u4e00\u534a\n\n 0x002E (46) \u7535\u673a 1 \u30012 \u76f8\u76f8\u5e8f\u6570\u636e\u9ad8\u5b57\u8282\u4e3a 0~6\u4f4e\u5b57\u8282\u4e3a 0~6 0x03 0x06 0x10\u4f4e\u5b57\u8282\u4e3a 1 \u76f8\u9ad8\u5b57\u8282\u4e3a 2 \u76f8 0x002F (47) \u7535\u673a 3 \u30014 \u76f8\u76f8\u5e8f\u6570\u636e\u9ad8\u5b57\u8282\u4e3a 0~6\u4f4e\u5b57\u8282\u4e3a 0~6 0x03 0x06 0x10\u4f4e\u5b57\u8282\u4e3a 3 \u76f8\u9ad8\u5b57\u8282\u4e3a 4 \u76f8 0x0030 (48) \u7535\u673a 4 \u30016 \u76f8\u76f8\u5e8f\u6570\u636e\u9ad8\u5b57\u8282\u4e3a 0~6\u4f4e\u5b57\u8282\u4e3a 0~6 0x03 0x06 0x10\u4f4e\u5b57\u8282\u4e3a 4 \u76f8\u9ad8\u5b57\u8282\u4e3a 6 \u76f8 0x0031 (49) \u76f8\u5e8f\u5b66\u4e60\u72b6\u6001 0,1 0x03 0x06 0x100\uff1a\u672a\u5b66\u4e601\uff1a\u5df2\u7ecf\u5b66\u4e60   0x0032 (50)   \u65e0\u611f\u542f\u52a8\u8d1f\u8f7d\u5927\u5c0f   0\uff5e4   0x03 0x06 0x100\uff1a\u8f7b\u8f7d1\uff1a\u4e2d\u8f7d2\uff1a\u91cd\u8f7d3\uff1a\u5c0f\u60ef\u6027\u8d1f\u8f7d4\uff1a\u5927\u60ef\u6027\u8d1f\u8f7d0x0033 (51)\u95ed\u73af\u901f\u5ea6\u52a0\u901f\u52a0\u901f\u5ea6100\uff5e\u6700\u5927\u901f\u5ea60x03 0x06 0x10\u5355\u4f4d\u4e3a RPM\/S0x0034 (52)\u95ed\u73af\u901f\u5ea6\u51cf\u901f\u52a0\u901f\u5ea6100\uff5e\u6700\u5927\u901f\u5ea60x03 0x06 0x10\u5355\u4f4d\u4e3a RPM\/S0x0035 (53)\u5f00\u73af\u901f\u5ea6\u52a0\u901f\u52a0\u901f\u5ea64\uff5e5000x03 0x06 0x10\u5355\u4f4d\u4e3a%\/S0x0036 (54)\u5f00\u73af\u901f\u5ea6\u51cf\u901f\u52a0\u901f\u5ea64\uff5e5000x03 0x06 0x10\u5355\u4f4d\u4e3a%\/S 0x0037 (55) \u505c\u6b62\u6a21\u5f0f 0, 1, 2 0x03 0x06 0x100\uff1a\u6b63\u5e38\u505c\u6b621\uff1a\u7d27\u6025\u5236\u52a82\uff1a\u81ea\u7531\u505c\u6b62 0x0038 (56) \u81ea\u52a8\u6362\u5411\u6a21\u5f0f 0, 1, 2 0x03 0x06 0x100\uff1a\u6b63\u5e38\u6362\u54111\uff1a\u6025\u505c\u6362\u5411 0x0039 (57) \u505c\u673a\u9501\u76f8\u7535\u6d41 0~1500 0x03 0x06 0x100\uff1a\u4e0d\u505c\u673a\u9501\u76f8\u5176\u4ed6\u6570\u503c\uff1a\u6570\u503c\u4e58\u4ee5 0.01 \u4e3a\u7535\u6d41\u503c\uff0c\u5355\u4f4d\u4e3a A0x003A~0x 3F(58)~ (63) \u4fdd\u7559   \n\n## 2.5 \u7cfb\u7edf\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u7cfb\u7edf\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668[\u5982\u8868 **2.5**** **\u6240](#bookmark13)\u793a\u3002\n\n\u8868 2.5 \u7cfb\u7edf\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce8\n\n0x0040 (64)\u5835\u8f6c\u505c\u673a\u65f6\u95f40\uff5e666350x03 0x06 0x10\u5355\u4f4d\u4e3a mS0x0041 (65)\u4fdd\u62a4\u5173\u65ad\u7535\u6d410\uff5e42000x03 0x06 0x10\u6570\u503c\u4e58\u4ee5 0.01 \u4e3a\u7535\u6d41\u503c\uff0c \u5355\u4f4d\u4e3a A0x0042 (66)\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\u9608\u503c\u6700\u5927\u503c0\uff5e33000x03 0x06 0x10\u5355\u4f4d\u4e3a mV0x0043 (67)\u5185\u90e8\u7535\u4f4d\u5668\u63a7\u5236\u9608\u503c\u6700\u5c0f\u503c0\uff5e33000x03 0x06 0x10\u5355\u4f4d\u4e3a mV0x0044 (68)\u5916\u90e8\u8f93\u5165\u63a7\u5236\u9608\u503c\u6700\u5927\u503c0\uff5e100000x03 0x06 0x10\u5355\u4f4d\u4e3a mV0x0045(69)\u5916\u90e8\u8f93\u5165\u63a7\u5236\u9608\u503c\u6700\u5c0f\u503c0\uff5e100000x03 0x06 0x10\u5355\u4f4d\u4e3a mV0x0046 (70)\u4fdd\u62a4\u7535\u538b\u9608\u503c\u6700\u5927\u503c\uff08\u8fc7\u538b\u4fdd\u62a4 \u7535\u538b\uff098\uff5e560x03 0x06 0x10 \u4fdd\u62a4\u7535\u538b\u8303\u56f4\uff0c\u5355\u4f4d\u4e3a V0x0047 (71)\u4fdd\u62a4\u7535\u538b\u9608\u503c\u6700\u5c0f\u503c\uff08\u6b20\u538b\u4fdd\u62a4 \u7535\u538b\uff098\uff5e560x03 0x06 0x10 0x0048 (72)\u7535\u538b\u4fdd\u62a4\u8bbe\u7f6e 0,1 0x03 0x06 0x100\uff1a\u4e0d\u4fdd\u62a41\uff1a\u7535\u538b\u4fdd\u62a4   0x0049(73)   \u8f93\u51fa\u7c7b\u578b   0,1,2,3,4,5   0x03 0x06 0x100\uff1a\u4e0d\u8f93\u51fa\uff08\u5373\u8f93\u51fa\u4f4e\u7535 \u5e73\uff091\uff1a\u957f\u8f93\u51fa2\uff1a\u62a5\u8b66\u4fe1\u53f7\u8f93\u51fa3\uff1aFG \u53cd\u9988\u4fe1\u53f7\u8f93\u51fa4\uff1a\u505c\u673a\u4fe1\u53f7\u8f93\u51fa5\uff1a\u901a\u8baf\u63a7\u5236\n\n### 2.6 PID \u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u95ed\u73af\u63a7\u5236 PID[\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\u5982\u8868 **2.6**** **\u6240](#bookmark14)\u793a\u3002\n\n\u8868 2.6 \u95ed\u73af\u63a7\u5236 PID \u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce80x004A (74)\u901f\u5ea6\u95ed\u73af P \u7cfb\u6570\u9ad8\u534a\u5b57 \u5efa\u8bae 1\uff5e327680 0x03 0x10 \u6570\u503c\u9664\u4ee5 32768 \u4e3a\u5b9e\u9645\u503c0x004B (75)\u901f\u5ea6\u95ed\u73af P \u7cfb\u6570\u4f4e\u534a\u5b570x004C (76)\u901f\u5ea6\u95ed\u73af I \u7cfb\u6570\u9ad8\u534a\u5b57 \u5efa\u8bae 1\uff5e326780 0x03 0x10 \u6570\u503c\u9664\u4ee5 32768 \u4e3a\u5b9e\u9645\u503c0x004D (77)\u901f\u5ea6\u95ed\u73af I \u7cfb\u6570\u4f4e\u534a\u5b570x004E (78)\u901f\u5ea6\u95ed\u73af D \u7cfb\u6570\u9ad8\u534a\u5b57 \u5efa\u8bae 1\uff5e326780 0x03 0x10 \u6570\u503c\u9664\u4ee5 32768 \u4e3a\u5b9e\u9645\u503c0x004F (79)\u901f\u5ea6\u95ed\u73af D \u7cfb\u6570\u4f4e\u534a\u5b57\n\n2.7 \u901a\u8baf\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u901a\u8baf[\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\u5982\u8868 **2.6 **\u6240](#bookmark14)\u793a\u3002\n\n\u8868 2.7 \u901a\u8baf\u53c2\u6570\u914d\u7f6e\u5bc4\u5b58\u5668\n\n\u5bc4\u5b58\u5668\u5730\u5740\u63cf\u8ff0\u53d6\u503c\u8303\u56f4\u652f\u6301\u529f\u80fd\u7801\u5907\u6ce80x0050 (80)485\u901a\u8baf\u4e2d\u65ad\u5236\u52a8\u65f6\u95f40\uff5e666350x03 0x060x10\u5355\u4f4d\u4e3a S0x0051 (81)485\u901a\u8baf\u8bbe\u5907\u5730\u57400\uff5e2550x03 0x060x10Modbus \u4ece\u8bbe\u5907\u5730\u5740    0x0052 (82)    485\u901a\u8baf\u4e32\u53e3\u6ce2\u7279\u7387    0~4   0x03 0x060x100\uff1a96001\uff1a192002\uff1a384003\uff1a576004\uff1a 115200\u5355\u4f4d\u4e3a bps  0x0053 (83)  485 \u901a\u8baf\u4e32\u53e3\u68c0\u9a8c\u65b9\u5f0f  0~3  0x03 0x060x100\uff1a\u65e0+\u505c\u6b62\u4f4d1\uff1a\u5076+1 \u505c\u6b62\u4f4d2\uff1a\u5947+1 \u505c\u6b62\u4f4d3\uff1a\u65e0+2 \u505c\u6b62\u4f4d0x0054(84)~0 x0059 (89)\u4fdd\u7559   \n\n## 3.CRC16 \u7684\u8ba1\u7b97\n\nC \u8bed\u8a00 CRC \u751f\u6210\u51fd\u6570\u5982[\u7a0b\u5e8f 3.1](#bookmark28)\u6240\u793a\u3002\u6240\u6709\u7684\u53ef\u80fd\u7684 CRC  \u503c\u90fd\u88ab\u9884\u88c5\u5728\u4e24\u4e2a\u6570\u7ec4\u4e2d\uff0c \u5f53\u8ba1\u7b97\u62a5\u6587\u5185\u5bb9\u65f6\u53ef  \u4ee5\u7b80\u5355\u7684\u7d22\u5f15\u5373\u53ef\u3002 \u4e00\u4e2a\u6570\u7ec4\u542b\u6709 **16**** **\u4f4d **CRC**** **\u57df\u7684\u6240\u6709 **256 **\u4e2a\u53ef\u80fd\u7684\u9ad8\u4f4d\u5b57\u8282\uff0c\u53e6\u4e00\u4e2a\u6570\u7ec4\u542b\u6709\u4f4e\u4f4d\u5b57\u8282\u7684\u503c\u3002 \u8fd9\u79cd\u7d22\u5f15\u8bbf\u95ee CRC  \u7684\u65b9\u5f0f\u63d0\u4f9b\u4e86\u6bd4\u5bf9\u62a5\u6587\u7f13\u51b2\u533a\u7684\u6bcf\u4e2a\u65b0\u5b57\u7b26\u90fd\u8ba1\u7b97\u65b0\u7684 CRC  \u66f4\u5feb\u7684\u65b9\u6cd5\u3002\n\n\u6ce8\u610f\uff1a \u6b64\u51fd\u6570\u5185\u90e8\u6267\u884c\u9ad8\/\u4f4e CRC  \u5b57\u8282\u7684\u4ea4\u6362\u3002\u6b64\u51fd\u6570\u8fd4\u56de\u7684\u662f\u5df2\u7ecf\u7ecf\u8fc7\u4ea4\u6362\u7684 CRC  \u503c\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4ece\u8be5 \u51fd\u6570\u8fd4\u56de\u7684 CRC \u503c\u53ef\u4ee5\u76f4\u63a5\u653e\u7f6e\u4e8e\u62a5\u6587\u7528\u4e8e\u53d1\u9001\u3002\n\n\u51fd\u6570\u4f7f\u7528\u4e24\u4e2a\u53c2\u6570\uff1a\n\nunsigned char *puchMsg\uff1b\u6307\u5411\u542b\u6709\u7528\u4e8e\u751f\u6210 CRC  \u7684\u4e8c\u8fdb\u5236\u6570\u636e\u62a5\u6587\u7f13\u51b2\u533a\u7684\u6307\u9488\u3002\n\nunsigned short usDataLen\uff1b\u62a5\u6587\u7f13\u51b2\u533a\u7684\u5b57\u8282\u6570\u3002\n\n\u6ce8\uff1a\u4ee5\u4e0b CRC16 \u751f\u6210\u51fd\u6570\u7a0b\u5e8f\u6458\u81ea <MODBUS over Serial Line Specification and Implementation Guide\n\nV1.02> \u3002\n\n\u7a0b\u5e8f **3.1****   ****CRC16 **\u751f\u6210\u51fd\u6570\u7a0b\u5e8f\u6e05\u5355\n\n\/*  \u9ad8\u4f4d\u5b57\u8282\u7684 CRC \u503c*\/\n\nstatic unsigned char auchCRCHi[] = {\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,\n\n0x40\n\n} ;\n\n\/* \u4f4e\u4f4d\u5b57\u8282\u7684 CRC \u503c*\/\n\nstatic char auchCRCLo[] = {\n\n0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,\n\n0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,\n\n0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,\n\n0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,\n\n0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,\n\n0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,\n\n0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,   0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,  0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,\n\n0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,\n\n0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,\n\n0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,  0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,\n\n0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,\n\n0x40\n\n};\n\nunsigned short CRC16(puchmsg, usDataLen\uff09     \/*  \u51fd\u6570\u4ee5 unsigned short  \u7c7b\u578b\u8fd4\u56de CRC *\/\n\nunsigned char *puchMsg,                                      \/*  \u7528\u4e8e\u8ba1\u7b97 CRC  \u7684\u62a5\u6587*\/\n\nunsigned short usDataLen\/*  \u62a5\u6587\u4e2d\u7684\u5b57\u8282\u6570*\/{ unsigned charuchCRCHi = 0xFF;\/* CRC  \u7684\u9ad8\u5b57\u8282\u521d\u59cb\u5316*\/\n\nunsigned charuchCRCLo = 0xFF;     \/* CRC  \u7684\u4f4e\u5b57\u8282\u521d\u59cb\u5316*\/\n\nunsigned uIndex ;           \/* CRC  \u67e5\u8be2\u8868\u7d22\u5f15*\/\n\nwhile (usDataLen--)\n\n{\n\n\/*  \u5b8c\u6210\u6574\u4e2a\u62a5\u6587\u7f13\u51b2\u533a*\/\n\nuIndex = uchCRCLo ^ *puchMsg++; \/*  \u8ba1\u7b97 CRC *\/\n\nuchCRCLo = uchCRCHi ^ auchCRCHi[uIndex];\n\nuchCRCHi = auchCRCLo[uIndex];\n\n}\n\nreturn (uchCRCHi << 8 | uchCRCLo);\n\n}\n\n---\n*modbus.cn*\n"