"# 12V\u5f31\u7535Modbus\u5f00\u5173\u667a\u80fd\u9762\u677f\n\n> 2023-11-22 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/25903.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/11\/20231122230248759.png)\n\n**1.**** ****\u534f\u8bae\u4ecb\u7ecd**\n\n**1.1.**** ****\u534f\u8bae\u683c\u5f0f**\n\n**\u5730\u5740\u7801****\u6307\u4ee4\u7801****\u5bc4\u5b58\u5668\u5730\u5740****\u901a\u8baf\u6570\u636e****CRC**** \u6821\u9a8c\u7801**1Byte1Byte2BytenByte2Byte\n\n**1.2.**** ****\u5730\u5740\u7801**\n\n\u667a\u80fd\u9762\u677f\u7684\u901a\u8baf\u5730\u5740 \uff0c\u5730\u5740\u8303\u56f4\uff1a 1~42\uff08 0x01 ~0x2A\uff09 \uff0c 255 \u4e3a\u5e7f\u64ad\u5730\u5740\uff080xFF\uff09\u3002\n\n**1.3.**** ****\u6307\u4ee4\u7801\u5217\u8868**\n\n**\u6307\u4ee4\u7801****\u63cf\u8ff0**0x03\u8bfb\u53d6\u9762\u677f\u6570\u636e0x06\u4fee\u6539\u9762\u677f\u6570\u636e0x10\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u5730\u5740\u53c2\u6570\n\n**1.4.**** ****CRC \u6821\u9a8c\u7b97\u6cd5**\n\nModbus \u534f\u8bae\u6807\u51c6\u6821\u9a8c\u7b97\u6cd5\u3002\n\n**1.5.**** ****\u9762\u677f\u63a7\u5236\u6307\u4ee4**\n\n**1.5.1.**** ****\u4fee\u6539\u9762\u677f\u901a\u8baf\u5730\u5740**\n\n**\u5bc4\u5b58\u5668\u5730\u5740****\u63cf\u8ff0**0x1000\u5730\u5740\u8303\u56f4 0x01~0x2A \uff0c \u51fa\u5382\u9ed8\u8ba4\u662f 0x01\u3002\n\n**\u6307\u4ee4\u4e3e\u4f8b\uff1a**\n\n\u901a\u8baf\u5730\u5740 0x01 \u6539\u4e3a 0x0201 06 10 00 00 02 0C CB\u901a\u8baf\u5730\u5740\u6539\u4e3a 0x01\uff08\u5e7f\u64ad\u6a21\u5f0f\uff09FF 06 10 00 00 01 59 14\n\n**1.5.2.**** ****\u8bbe\u7f6e\u9762\u677f\u5de5\u4f5c\u6a21\u5f0f**\n\n**\u5bc4\u5b58\u5668\u5730\u5740****\u63cf\u8ff0**0x1003\u9ed8\u8ba4\u503c\u4e3a 0x0000\n\n\u5bc4\u5b58\u5668\u4f4d\u542b\u4e49Bit15~Bit6\u4fdd\u7559 \uff0c \u56fa\u5b9a\u4e3a 0Bit5\u8bbe\u7f6e\u6309\u952e\u677e\u5f00\u4e3b\u52a8\u53d1\u9001\u6570\u636eBit5 =1 \u4e14 Bit2 =1\uff1a\u4f7f\u80fd\u4e3b\u52a8\u53d1\u9001Bit5 =0\uff1a\u7981\u6b62\u4e3b\u52a8\u53d1\u9001Bit4\u4fdd\u7559 \uff0c \u56fa\u5b9a\u4e3a 0Bit3\u8bbe\u7f6e\u6309\u952e\u80cc\u5149\u706f\u5ef6\u65f6\u7184\u706dBit3 =1\uff1a\u6309\u952e 10 \u79d2\u5185\u6ca1\u52a8\u4f5c \uff0c\u80cc\u5149\u706f\u81ea\u52a8\u7184\u706dBit3 =0\uff1a\u6309\u952e\u80cc\u5149\u706f\u5e38\u4eae Bit2\u8bbe\u7f6e\u6309\u952e\u6309\u4e0b\u4e3b\u52a8\u53d1\u9001\u6570\u636eBit2 =1\uff1a\u4f7f\u80fd\u4e3b\u52a8\u53d1\u9001 \uff0c\u4e3b\u52a8\u53d1\u9001\u6a21\u5f0fBit2 =0\uff1a\u7981\u6b62\u4e3b\u52a8\u53d1\u9001 \uff0c\u4e3b\u4ece\u8f6e\u8be2\u6a21\u5f0f \uff0c \u7531\u4e3b\u673a\u53d1\u6307\u4ee4\u8bfb\u53d6\u952e\u503cBit1\u4fdd\u7559 \uff0c \u56fa\u5b9a\u4e3a 0 Bit0\u8bbe\u7f6e\u6f14\u793a\u6a21\u5f0fBit0 =1\uff1a\u6f14\u793a\u6a21\u5f0f \uff0c\u6309\u952e\u63a7\u5236\u80cc\u5149\u706f\u4eae\u706d \uff0c\u4e3b\u8981\u7528\u4e8e\u529f\u80fd\u6548\u679c\u6f14\u793aBit0 =0\uff1a\u6b63\u5e38\u6a21\u5f0f \uff0c \u7531 RCU \u53d1\u6307\u4ee4\u63a7\u5236\u80cc\u5149\u706f\u4eae\u706d\n\n**\u6307\u4ee4\u4e3e\u4f8b\uff1a**\n\n\u6f14\u793a\u6a21\u5f0f \uff0c\u6309\u952e\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 01 BC CA\u6f14\u793a\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u4e3b\u52a8\u53d1\u9001 \uff0c\u6309\u952e\u677e\u5f00\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 05 BD 09\u6f14\u793a\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u548c\u677e\u5f00\u90fd\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 25 BC D1\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 00 7D 0A\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u4e3b\u52a8\u53d1\u9001 \uff0c\u6309\u952e\u677e\u5f00\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 04 7C C9\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u548c\u677e\u5f00\u90fd\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5e38\u4eae01 06 10 03 00 24 7D 11\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5ef6\u65f6 10 \u79d2\u7184\u706d01 06 10 03 00 08 7C CC\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u4e3b\u52a8\u53d1\u9001 \uff0c\u6309\u952e\u677e\u5f00\u4e0d\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5ef6\u65f6 10 \u79d2\u7184\u706d01 06 10 03 00 0C 7D 0F\u6b63\u5e38\u6a21\u5f0f \uff0c\u6309\u952e\u6309\u4e0b\u548c\u677e\u5f00\u90fd\u4e3b\u52a8\u53d1\u9001 \uff0c\u80cc\u5149\u5ef6\u65f6 10 \u79d2\u7184\u706d01 06 10 03 00 2C 7C D7\n\n**1.5.3.**** ****\u63a7\u5236\u80cc\u5149\u706f\u548c\u6309\u952e\u706f**\n\n**\u5bc4\u5b58\u5668\u5730\u5740****\u63cf\u8ff0**0x1008\u9762\u677f\u7684\u80cc\u5149\u706f\u548c\u6309\u952e\u706f\u901a\u8fc7\u8bbe\u7f6e\u8be5\u5bc4\u5b58\u5668\u7684\u503c\u5b9e\u65f6\u63a7\u5236\n\n\u5bc4\u5b58\u5668\u4f4d\u542b\u4e49Bit15~Bit9\u4fdd\u7559Bit8\u63a7\u5236\u80cc\u5149\u706fBit8 =1\uff1a\u9762\u677f\u4e0a\u6240\u6709\u6309\u952e\u7684\u80cc\u5149\u706f\u70b9\u4eaeBit8 =0\uff1a\u9762\u677f\u4e0a\u6240\u6709\u6309\u952e\u7684\u80cc\u5149\u706f\u7184\u706dBit7\u63a7\u5236\u6309\u952e 8 \u6307\u793a\u706fBit7 =1\uff1a\u6309\u952e 8 \u6307\u793a\u706f\u70b9\u4eae \uff0c\u6309\u952e 8 \u80cc\u5149\u706f\u7184\u706dBit7 =0\uff1a\u6309\u952e 8 \u6307\u793a\u706f\u7184\u706dBit6\u63a7\u5236\u6309\u952e 7 \u6307\u793a\u706fBit6 =1\uff1a\u6309\u952e 7 \u6307\u793a\u706f\u70b9\u4eae \uff0c\u6309\u952e 7 \u80cc\u5149\u706f\u7184\u706dBit6 =0\uff1a\u6309\u952e 7 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\u6307\u793a\u706f\u70b9\u4eae \uff0c\u6309\u952e 2 \u80cc\u5149\u706f\u7184\u706dBit1 =0\uff1a\u6309\u952e 2 \u6307\u793a\u706f\u7184\u706d Bit0\u63a7\u5236\u6309\u952e 1 \u6307\u793a\u706fBit0 =1\uff1a\u6309\u952e 1 \u6307\u793a\u706f\u70b9\u4eae \uff0c\u6309\u952e 1 \u80cc\u5149\u706f\u7184\u706dBit0 =0\uff1a\u6309\u952e 1 \u6307\u793a\u706f\u7184\u706d\n\n**\u6307\u4ee4\u4e3e\u4f8b\uff1a**\n\n\u6240\u6709\u6309\u952e\u6307\u793a\u706f\u548c\u80cc\u5149\u706f\u7184\u706d01 06 10 08 00 00 0C C8\u6240\u6709\u6309\u952e\u6307\u793a\u706f\u7184\u706d \uff0c\u6240\u6709\u6309\u952e\u80cc\u5149\u706f\u70b9\u4eae01 06 10 08 01 00 0D 58\u6309\u952e 1 \u6307\u793a\u706f\u70b9\u4eae \uff0c\u5176\u4ed6\u6309\u952e\u80cc\u5149\u706f\u70b9\u4eae01 06 10 08 01 01 CC 98\u6309\u952e 1 \u6307\u793a\u706f\u70b9\u4eae \uff0c\u5176\u5b83\u952e\u6307\u793a\u706f\u548c\u6240\u6709\u6309\u952e\u80cc\u5149\u706f\u7184\u706d01 06 10 08 00 01 CD 08\n\n**1.5.4.**** ****\u8bfb\u53d6\u6309\u952e\u952e\u503c**\n\n**\u5bc4\u5b58\u5668\u5730\u5740****\u63cf\u8ff0**0x100B\u901a\u8fc7\u8be5\u5bc4\u5b58\u5668\u8bfb\u53d6\u6307\u5b9a\u6309\u952e\u7684\u5b9e\u65f6\u952e\u503c\n\n\u5bc4\u5b58\u5668\u4f4d\u542b\u4e49Bit15~Bit8\u6309\u952e\u7edd\u5bf9\u952e\u503c \uff0c\u8ba1\u7b97\u516c\u5f0f \uff1a\u7edd\u5bf9\u952e\u503c  = (\u9762\u677f\u5730\u5740  - 1) * 6 +  \u6309\u952e\u7f16\u53f7Bit7\u6309\u952e 8 \u952e\u503cBit7 =1\uff1a\u6309\u952e 8 \u6309\u4e0bBit7 =0\uff1a\u6309\u952e 8 \u677e\u5f00Bit6\u6309\u952e 7 \u952e\u503cBit6 =1\uff1a\u6309\u952e 7 \u6309\u4e0bBit6 =0\uff1a\u6309\u952e 7 \u677e\u5f00Bit5\u6309\u952e 6 \u952e\u503cBit5 =1\uff1a\u6309\u952e 6 \u6309\u4e0bBit5 =0\uff1a\u6309\u952e 6 \u677e\u5f00 Bit4\u6309\u952e 5 \u952e\u503cBit4 =1\uff1a\u6309\u952e 5 \u6309\u4e0bBit4 =0\uff1a\u6309\u952e 5 \u677e\u5f00 Bit3\u6309\u952e 4 \u952e\u503cBit3 =1\uff1a\u6309\u952e 4 \u6309\u4e0bBit3 =0\uff1a\u6309\u952e 4 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03 13 10 00 01 81 4B\u6309\u4e0b\u8fd4\u56de01 03 00 01 00 01 D5 CA\u672a\u6309\u4e0b\u8fd4\u56de01 03 00 01 00 00 14 0A\u957f\u6309\u8fd4\u56de01 03 00 01 00 02 95 CB  \u5361\u6b7b\u8fd4\u56de01 03 00 01 00 FF 54 4A\u8bfb\u53d6\u6309\u952e 1 \u81f3 8 \u7684\u72b6\u6001\u53d1\u900101 03 13 10 00 08 41 4D\u672a\u6309\u4e0b\u8fd4\u56de01 03 00 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DA 4C\n\n---\n*modbus.cn*\n"