"# \u82cd\u5357\u4eea\u8868\u6d41\u91cf\u8ba1MODBUS\u901a\u4fe1\u534f\u8bae\n\n> 2023-01-26 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/11492.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\n## \u534f\u8bae\u6982\u8ff0\n\n**1.1** **MODBUS**\u534f\u8bae\u5185\u5bb9\u7b26\u5408**GB\/Z** **19582.1\/2\/3-2004(IEC60870-5)**\u6807\u51c6 \u3002                            \n\n**1.2**\u8be5\u534f\u8bae\u9002\u7528\u4e8e\u672c\u5382\u7684**LWQZ**\u6c14\u4f53\u667a\u80fd\u6da1\u8f6e\u6d41\u91cf\u8ba1\u3001 **LLQZ**\u667a\u80fd\u7f57\u8328\u6d41\u91cf\u8ba1\u3001 **LUXZ**\u667a\u80fd\u65cb\u8fdb\u6f29\u6da1\u6d41\u91cf\n\n\u8ba1\u3001 **EVC**\u4f53\u79ef\u4fee\u6b63\u4eea\u7b49\u4ea7\u54c1\u3002\n\n**1.3**\u4e3b\u8981\u7279\u70b9\n\n\u8bbe\u5907\u5c5e\u6027\uff1a\u6d41\u91cf\u8ba1\u4e3aMODBUS\u901a\u4fe1\u603b\u7ebf\u4e0a\u7684\u4ece\u7ad9\n\n\u901a\u4fe1\u6a21\u5f0f\uff1a RTU\n\n\u901a\u4fe1\u5a92\u4ecb\uff1a RS485\n\n\u901a\u4fe1\u5730\u5740\uff1a 1-247\n\n\u6ce2\u7279\u7387\uff1a  1200 \u30012400 \u30014800 \u30019600 \u300119200 bps\n\n\u6570\u636e\u4f4d\uff1a  8\u4f4d\n\n\u6821\u9a8c\u4f4d\uff1a  \u65e0\u6821\u9a8c(2\u4e2a\u505c\u6b62\u4f4d)\u3001\u5076\u6821\u9a8c(1\u4e2a\u505c\u6b62\u4f4d)\u3001\u5947\u6821\u9a8c(1\u4e2a\u505c\u6b62\u4f4d)\n\n**1.4** \u7279\u6b8a\u6027\n\n\u672c\u534f\u8bae\u9488\u5bf9\u6d41\u91cf\u8ba1\u800c\u5f00\u53d1\uff0c\u652f\u6301\u591a\u5b57\u8282\u4e8c\u8fdb\u5236\u6570\u3001 ASCII\u5b57\u7b26\u4e32\u3001 BCD\u7801\u7b49\u7c7b\u578b\u53d8\u91cf\u7684\u6570\u636e\u901a\u4fe1\uff1b \u901a\u4fe1\u9009\u7528MODBUS\u768403H \u300107H\u529f\u80fd\u7801\uff0c\u5e76\u589e\u8bbe\u7528\u6237\u81ea\u5b9a\u4e49\u768466H\u529f\u80fd\u7801\u3002\n\n## \u652f\u6301\u7684**MODBUS**\u529f\u80fd\u7801\n\n\u529f\u80fd\u7801\uff0c\u6570\u636e\u5e27\u683c\u5f0f\u5982\u4e0b\uff1a\n\n**2.1** \u529f\u80fd\u7801**03**\uff1a\u8bfb\u53d6\u8d77\u59cb\u5730\u5740\u5728**start_addr**\u8d77**N**\u4e2a\u5b57\u7684\u6570\u636e\u3002\u89c1\u8868**1**\u3002\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a addr, 03, start_addr_hi ,start_addr_low, N_hi,N_low, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr, 03, num, data(0),\u2026 .,data(num- 1), CRC\n\n\u5f02\u5e38\u54cd\u5e94\uff1a addr, 83H, error_code, CRC\n\n\u88681\n\n\u5bc4\u5b58\u5668\u5730\u5740\u53d8\u91cf\u540d\u79f0\u5bc4\u5b58\u5668\u6570\u76eeN\u7c7b\u578b\u5355\u4f4d0000H\u5de5\u51b5\u7d2f\u79ef\u91cf4BIN30004H\u6807\u51b5\u7d2f\u79ef\u91cf4BINNm30008H\u5de5\u51b5\u6d41\u91cf2BINm3\/h000AH\u6807\u51b5\u6d41\u91cf2BINNm3\/h000CH\u6e29\u5ea62BIN\u2103000EH\u538b\u529b2BINkPa\n\n\u5176\u4e2d\uff1a\n\n  \u8d77\u59cb\u5730\u5740\uff1a\u7531start_addr_hi \u3001start_addr_low\n\n2\u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u4f9d\u6b21\u4e3a\u8d77\u59cb\u5730\u5740\u7684\u9ad8\u5b57\u8282\u3001\u4f4e\u5b57\u8282\uff1b\u8d77\u59cb\u5730\u5740\u5fc5\u987b\u4e3a\u88681\u7b2c1\u5217\u4e2d\u7684\u6570\u503c\uff0c\u5426\u5219\u6d41 \u91cf\u8ba1\u56de\u590d\u5730\u5740\u51fa\u9519(error_code =2)\uff1b\u7531N_hi \u3001N_low 2\u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u8868\u793a\u8bfb\u53d6N\u4e2a\u5b57(1\u4e2a\u5b57\u75312\u4e2a\u5b57\u8282\u7ec4\u6210)\u7684\u6570\u636e\uff1b\n\n     num \uff1a\u8868\u793a\u6570\u636e\u7684\u4e2a\u6570\uff0c data(i) \uff0ci=0,\u2026,num, num\uff1d2N\u3002\n\n     error_code\u4ee3\u7801\u53c2\u89c1\u88684\u3002\n\n\u793a\u4f8b**1**  (\u51fa\u5382\u9ed8\u8ba4\uff1a **Cod**\u4e3a**01** \uff0c**Cdr**\u4e3a**23** \uff0c**bps**\u4e3a**9600**)\n\n   \u4e3b\u7ad9\u53d1\u9001\uff1a   17      03        00 04         00 04          073E  \n\n\u5730\u5740 \u529f\u80fd\u7801  \u8d77\u59cb\u5730\u5740 \u5bc4\u5b58\u5668\u6570\u76ee CRC\u6821\u9a8c\u7801\n\n  \u4ece\u7ad9\u54cd\u5e94\uff1a 17       03       08       00000039412524E1    9D25\n\n\u5730\u5740 \u529f\u80fd\u7801 \u5b57\u8282\u6570   \u6807\u51b5\u7d2f\u79ef\u91cf   \u6821\u9a8c\u7801\n\n  \u53d8\u91cf\u6570\u636e\u4e3a8\u5b57\u8282\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u7684\u6807\u51c6\u7d2f\u79ef\u6d41\u91cf\uff0c\u9ad8\u4f4d\u5728\u5148\uff0c\u5176\u4e2d\u524d6\u4e2a\u5b57\u8282\u4e3a\u6574\u6570\u90e8\u5206\uff0c\u540e\u4e24\n\n\u4e2a\u4e3a\u5c0f\u6570\u90e8\u5206\uff0c\u89e3\u5305\u5f97\u6570\u636e3752229. 144Nm3\/h\u3002\n\n  \u9644\u6570\u636e\u89e3\u5305\u8bf4\u660e\uff1a\n\n1) \u6574\u6570\u90e8\u5206\u5341\u516d\u8fdb\u5236\u657000 00 00 39 41 25\u7b49\u4e8e\u5341\u8fdb\u5236\u76843752229\u3002\n\n2) \u5c0f\u6570\u90e8\u5206\u5341\u516d\u8fdb\u5236\u6570(24 E1) 16 = (9441)10 \/ 65536= 0. 14405(\u5341\u8fdb\u5236\u5c0f\u6570)\u3002\n\n3) \u7ed3\u679c\u4e3a3752229.14\uff0c\u5355\u4f4d\uff1a Nm3\/h\n\n\u793a\u4f8b**2**\u8bfb\u5bc4\u5b58\u5668\u6570\u636e(\u6b64\u4f8b\u4e2d\u5c06\u5f53\u524d\u79ef\u7b97\u4eea\u663e\u793a\u7684\u6570\u636e\u8bfb\u51fa)\n\n  \u4e3b\u7ad9\u53d1\u9001\uff1a   17       03         00 00         00 10          46F0   \n\n\u5730\u5740 \u529f\u80fd\u7801  \u8d77\u59cb\u5730\u5740 \u5bc4\u5b58\u5668\u6570\u76ee  CRC\u6821\u9a8c\u7801\n\n  \u4ece\u7ad9\u54cd\u5e94\uff1a 17       03         20          00 00 00 37 12 05 A0 43     00 00 00 37 12 05 A0 43\n\n\u5730\u5740 \u529f\u80fd\u7801  \u63a5\u6536\u5b57\u8282\u6570   \u5de5\u51b5\u7d2f\u79ef\u91cf        \u6807\u51b5\u7d2f\u79ef\u91cf\n\n00 01 CB 6B     00 01 CB 89      00 00 14 00    00 00 65 53    BA 18 \n\n\u5de5\u51b5\u6d41\u91cf   \u6807\u51b5\u6d41\u91cf    \u6e29\u5ea6    \u538b\u529b   \u6821\u9a8c\u7801\n\n\u5907\u6ce8\uff1a\u5f53\u4e3b\u673a\u53d1\u9001\u7684\u6570\u636e\u5e27\u51fa\u9519\uff0c\u4ece\u673a\u4e0d\u5e94\u7b54\u54cd\u5e94error_code\u4ee3\u7801\uff0c\u6b64\u65f6\u62d2\u7edd\u4e3b\u673a\u7ee7\u7eed\u53d1\u9001\u547d\u4ee4\u3002\n\n**2.2** \u529f\u80fd\u7801**07**\uff0c\u8bfb\u53d6\u6d41\u91cf\u8ba1\u7684**1**\u4e2a\u5b57\u8282\u7684\u72b6\u6001\u6570\u636e\u3002\u89c1\u8868**2**\u3002\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a addr, 07, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr, 07,status, CRC\n\n\u88682\n\n BIT7BIT6BIT5BIT4BIT3BIT2BIT1BIT01\u6709\u786c\u4ef6\u6545\u969c\u5de5\u51b5\u6d41\u91cf\u4f4e\u62a5\u8b66\u5de5\u51b5\u6d41\u91cf\u9ad8\u62a5\u8b66\u7535\u6c60\u6b20\u538b1\u62a5\u8b66\u7535\u6c60\u6b20\u538b2\u62a5\u8b66\u77ac\u65f6\u6d41\u91cf \u504f\u4f4e\u6b63\u5728\u6309\u952e \u64cd\u4f5c\u6709\u5916\u7535\u6e900\u65e0\u786c\u4ef6\u6545\u969c\u5de5\u51b5\u6d41\u91cf\u5927\u4e8e\u62a5\u8b66\u4f4e\u9650\u5de5\u51b5\u6d41\u91cf\u5c0f\u4e8e\u62a5\u8b66\u9ad8\u9650\u7535\u6c60\u7535\u538b\u5927\u4e8e\u62a5\u8b66\u96501\u7535\u6c60\u7535\u538b\u5927\u4e8e\u62a5\u8b66\u96502\u77ac\u65f6\u6d41\u91cf \u6b63\u5e38 \u65e0\u6309\u952e\u65e0\u5916\u7535\u6e90\n\n**2.3**\u529f\u80fd\u7801**66H**\uff0c\u7528\u6237\u81ea\u5b9a\u4e49\u7684\u529f\u80fd\u7801\uff0c\u7528\u4e8e\u8bfb\u53d6\u6d41\u91cf\u8ba1\u5185\u90e8\u5386\u53f2\u6570\u636e\u3002\u89c1\u8868**3**\u3002\n\n\u88683\n\n\u5bc4\u5b58\u5668\u5730\u5740\u53d8\u91cf\u540d\u79f0\u5bc4\u5b58\u5668\u6570\u76eeN\u7c7b\u578b\u8bf4\u660e0063H\u8bb0\u5f55\u8d77\u59cb\u65f6\u95f41BCD\u6ce810064H\u5f53\u524d\u65f6\u95f43BCD\u6ce820067H\u4eea\u8868\u751f\u4ea7\u4fe1\u606f18ASCII\u6ce830079H\u5b9e\u65f6\u8bb0\u5f5517BCD\/BIN\u6ce84008AH\u6708\u8bb0\u5f555BCD\/BIN\u6ce85008FH\u542f\u505c\u8bb0\u5f558BCD\/BIN\u6ce860097H\u9632\u526a\u65ad\u8bb0\u5f554BCD\/BIN\u6ce87\n\n2.3.1\u8bfb\u6700\u8fd1\u7b2cM\u4e2a\u5b9e\u65f6\u8bb0\u5f55(1\u6761\u8bb0\u5f55)\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a addr, 66H, 00, 64H, 02H,M_hi, M_low, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr,66H ,22H,psum(BIN),sum(BIN),q0(BIN),t(BIN),p(BIN),year(BCD),month(BCD), day(BCD),hour(BCD),minite(BCD),sec(BCD), CRC\n\n2.3.2\u8bfb\u6700\u8fd1\u7b2cM\u4e2a\u6708\u8bb0\u5f55(1\u6761\u8bb0\u5f55)\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a addr, 66H, 00, 65H, 02H, M_hi,M_low, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr,66H, 0AH, sum(BIN), year(BCD), month(BCD), CRC\n\n2.3.3\u8bfb\u6700\u8fd1\u7b2cM\u4e2a\u542f\/\u505c\u8bb0\u5f55(EVC\u65e0\u542f\u505c\u8bb0\u5f55\uff0c1\u6761\u8bb0\u5f55)\n\n\u4e3b\u7ad9\u53d1\u9001\uff1a addr, 66H, 00, 66H, 02H,M_hi, M_low, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr,66H,10H,sum(BIN),year(BCD),month(BCD),day(BCD),hour(BCD),\n\nminite(BCD),sec(BCD), ssflag(byte),0, CRC\n\n2.3.4\u8bfb\u6700\u8fd1\u7b2cM\u4e2a\u4f20\u611f\u5668\u88ab\u526a\u65ad\u6216\u63a5\u4e0a\u65f6\u7684\u8bb0\u5f55(1\u6761\u8bb0\u5f55\uff0c\u4ec5\u914d\u63a5\u673a\u68b0\u8ba1\u6570\u5668\u7684\u667a\u80fd\u79ef\u7b97\u4eea\u9002\u7528) \u4e3b\u7ad9\u53d1\u9001\uff1a addr, 66H, 00, 67H, 02H,M_hi, M_low, CRC\n\n\u4ece\u7ad9\u54cd\u5e94\uff1a addr,66H,08H ,year(BCD),month(BCD),day(BCD),hour(BCD),\n\nminite(BCD),sec(BCD), bkflag(byte),0, CRC\n\n\u5907\u6ce8\uff1a\n\n     M\u4e3a\u5b57\uff0c\u75282\u4e2a\u5b57\u8282\u8868\u793a\uff0c M_hi\u4e3a\u9ad8\u5b57\u8282\uff0c M_low\u4e3a\u4f4e\u5b57\u8282\uff0c\u8bfb\u6700\u8fd1\u7684\u4e00\u6761\u8bb0\u5f55\u65f6\uff0c M=1\uff0c\n\n\u5f53M=0\u6216\u5927\u4e8e\u6d41\u91cf\u8ba1\u5185\u90e8\u4fdd\u5b58\u7684\u8bb0\u5f55\u6570\u65f6\uff0c\u6d41\u91cf\u8ba1\u8fd4\u56de\u6570\u503c\u4e3a0\u7684\u4e00\u4e2a\u5e8f\u5217\u3002\n\n     psum(BIN),sum(BIN)\uff1a\u75288\u5b57\u82828\u4f4d\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u7684\u7d2f\u79ef\u91cf\uff0c\u9ad8\u4f4d\u5728\u5148\uff0c\u5176\u4e2d\u524d6\u4e2a\u5b57\u8282\u4e3a\u6574\u6570\uff0c\u540e2\u4e2a\n\n\u5b57\u8282\u4e3a\u5c0f\u6570\uff0c\u5355\u4f4d\uff1a m3\u3002\n\n     q0(BIN)\uff1a\u75284\u5b57\u82828\u4f4d\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u7684\u6807\u51b5\u77ac\u65f6\u6d41\u91cf\uff0c\u9ad8\u4f4d\u5728\u5148\uff0c\u5176\u4e2d\u524d3\u4e2a\u5b57\u8282\u4e3a\u6574\u6570\uff0c\u540e1\u4e2a\u5b57\u8282\n\n\u4e3a\u5c0f\u6570\uff1b\u5355\u4f4d\uff1a Nm3\/h\u3002\n\n     t(BIN)\uff1a\u75284\u5b57\u82828\u4f4d\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u7684\u6e29\u5ea6\uff0c\u9ad8\u4f4d\u5728\u5148\uff0c\u5176\u4e2d\u524d3\u4e2a\u5b57\u8282\u4e3a\u6574\u6570\uff0c\u540e1\u4e2a\u5b57\u8282\u4e3a\u5c0f\u6570\uff1b\u5355\n\n\u4f4d\uff1a \u2103\u3002\n\n     p(BIN)\uff1a\u75284\u5b57\u82828\u4f4d\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u7684\u538b\u529b\uff0c\u9ad8\u4f4d\u5728\u5148\uff0c\u5176\u4e2d\u524d3\u4e2a\u5b57\u8282\u4e3a\u6574\u6570\uff0c\u540e1\u4e2a\u5b57\u8282\u4e3a\u5c0f\u6570\uff1b\u5355\n\n\u4f4d\uff1a KPa\u3002\n\nyear,month,day,hour,minite,sec\n\n\u4e3a\u5355\u5b57\u8282BCD\u7801\uff0c\u5206\u522b\u8868\u793a\u5e74(\u4ee52000\u5e74\u4e3a\u8d77\u70b9\uff0c 20\u4e0d\u663e\u793a)\u3001\u6708\u3001\u65e5\u3001\u65f6\u3001\u5206\u3001\u79d2\u3002\n\nssflag\u4e3a\u542f\/\u505c\u6807\u8bb0\uff0c\u5f53ssflag\uff1d55H\u65f6\uff0c\u8868\u793a\u8be5\u8bb0\u5f55\u4e3a\u542f\u52a8\u8bb0\u5f55\uff1b\u5f53ssflag\uff1d0EEH\u65f6\uff0c\u8868\u793a\u8be5\u8bb0\u5f55\u4e3a\u505c \u6b62\u8bb0\u5f55\u3002\n\nbkflag\u4e3a\u6b63\u5e38\/\u526a\u65ad\u6807\u8bb0\uff0c\u5f53bkflag\uff1d55H\u65f6\uff0c\u8868\u793a\u8be5\u8bb0\u5f55\u4e3a\u4f20\u611f\u5668\u8fde\u7ebf\u6062\u590d\u6b63\u5e38\u65f6\u7684\u8bb0\u5f55\uff1b\u5f53bkflag\uff1d\n\n0EEH\u65f6\uff0c\u8868\u793a\u8be5\u8bb0\u5f55\u4e3a\u4f20\u611f\u5668\u8fde\u7ebf\u88ab\u526a\u65ad\u65f6\u7684\u8bb0\u5f55\u3002\n\n\u6ce81\uff1a\u8bb0\u5f55\u8d77\u59cb\u65f6\u95f4\uff1a\u7528\u4e8e\u6307\u5b9a\u5b9e\u65f6\u8bb0\u5f55\u7684\u8d77\u59cb\u65f6\u95f4\uff0c2\u4e2a\u5b57\u8282\uff0c\u5c0f\u65f6\uff0d\u5206\u949f\uff1b\u79d2\u65f6\u95f4\u9ed8\u8ba4\u4e3a0\uff1b\n\n\u6ce82\uff1a\u5f53\u524d\u65f6\u95f4\uff1a\u5e74\u6708\u65e5\u65f6\u5206\u79d2\uff0c6\u4e2a\u5b57\u8282\uff0cBCD\u7801\uff0c\u5176\u4e2d\u5e74\u4e3a1\u4e2a\u5b57\u8282(\u4ee52000\u5e74\u4e3a\u8d77\u70b9\uff0c20\u4e0d\u663e\u793a)\uff1a \u6ce83\uff1a\u4eea\u8868\u751f\u4ea7\u4fe1\u606f\uff1a36\u4e2a\u5b57\u8282\uff0cASCII\u7801\uff1b\u5176\u4e2d\u5382\u5bb6\u4ee3\u780110\u5b57\uff0c\u4ea7\u54c1\u578b\u53f712\u4e2a\u5b57\u8282\uff0c\u4ea7\u54c1\u5e8f\u53f78\u4e2a\u5b57\u8282\uff0c\n\n\u8f6f\u4ef6\u7248\u672c3\u4e2a\u5b57\u8282\uff0c\u751f\u4ea7\u65e5\u671f3\u4e2a\u5b57\u8282(\u5e74\u6708\u65e5)\uff1b\n\n\u6ce84\uff1a\u5b9e\u65f6\u8bb0\u5f55\n\n\uff1a\u4e00\u6761\u5b9e\u65f6\u6570\u636e\u8bb0\u5f55\u517134\u4e2a\u5b57\u8282\uff0c\u5305\u62ec\u5de5\u51b5\u7d2f\u79ef\u91cf8\u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1am3 )\u3001\u6807\u51b5\u7d2f\u79ef \u91cf8\u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1am3 )\u3001\u77ac\u65f6\u6d41\u91cf4\u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1am3\/h)\u3001\u6e29\u5ea64 \u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1a\u2103)\u3001\u538b\u529b4\u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1akPa)\u3001\u65f6\u95f46\u4e2a\u5b57\u8282( BCD\u7801\uff0c\u5e74\u6708\u65e5\u65f6\u5206\u79d2)\n\n\u6ce85\uff1a\u6708\u8bb0\u5f55\uff1b\n\n\u4e00\u6761\u6708\u8bb0\u5f55\u517110\u4e2a\u5b57\u8282\uff0c\u6807\u51b5\u7d2f\u79ef\u91cf8\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1am3 )\u3001\u65f6\u95f42\u4e2a\u5b57\u8282(BCD\u7801\uff0c\u5e74\n\n\u6708)\n\n\u6ce86\uff1a\u542f\u505c\u8bb0\u5f55\uff1a\u4e00\u6761\u542f\u505c\u8bb0\u5f55\u517115\u4e2a\u5b57\u8282\uff0c\u6807\u51b5\u7d2f\u79ef\u91cf8\u4e2a\u5b57\u8282(8\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5355\u4f4d\uff1am3 )\u3001\u65f6\u95f46\u4e2a\u5b57 \u8282(BCD\u7801\uff0c\u5e74\u6708\u65e5\u65f6\u5206\u79d2)\u3001\u542f\u505c\u6807\u8bb01\u4e2a\u5b57\u8282(55H\u8868\u793a\u6d41\u91cf\u4ece\u65e0\u5230\u6709\uff0cEEH\u8868\u793a\u6d41\u91cf\u4ece\u6709\u5230\u65e0) \u30010(\u4fdd\u7559\u5b57\u8282)\uff1b\n\n\u6ce87\uff1a\u9632\u526a\u65ad\u8bb0\u5f55\uff1a\u4e00\u6761\u9632\u526a\u65ad\u8bb0\u5f55\u51718\u4e2a\u5b57\u8282\uff0c\u65f6\u95f46\u4e2a\u5b57\u8282(BCD\u7801\uff0c\u5e74\u6708\u65e5\u65f6\u5206\u79d2)\u3001\u9632\u526a\u65ad\u6807\u8bb01  \u4e2a\u5b57\u8282(55H\u8868\u793a\u4f20\u611f\u5668\u7ebf\u675f\u88ab\u63a5\u901a\uff0c\u4e3a\u6b63\u5e38\u60c5\u51b5\uff1bEEH\u8868\u793a\u4f20\u611f\u5668\u7ebf\u675f\u88ab\u526a\u65ad\uff0c\u4e3a\u5f02\u5e38\u60c5\u51b5\uff1b\u8bb0\u5f55 \u65f6\u95f4\u4e3a\u63a5\u901a\u6216\u88ab\u526a\u65ad\u7684\u65f6\u95f4)\u3001 0(\u4fdd\u7559\u5b57\u8282)\u3002\n\n2.4  \u6d41\u91cf\u8ba1\u5728\u6536\u5230\u4e00\u4e2a\u901a\u8baf\u5e27\u540e\u6ca1\u6709\u54cd\u5e94\u7684\u51e0\u79cd\u60c5\u51b5\uff1a\n\n2.4.1\u6536\u5230\u6570\u636e\u5e27\u7684\u901a\u8baf\u5730\u5740\u5b57\u8282\u4e0e\u672c\u673a\u5730\u5740\u4e0d\u540c\u65f6\uff1b\n\n2.4.2\u6536\u5230\u6570\u636e\u5e27\u7684\u901a\u8baf\u5730\u5740\u5b57\u8282(\u7b49\u4e8e0)\u662f\u5e7f\u64ad\u5730\u5740\u65f6\uff1b\n\n2.4.3\u6536\u53d7\u5230\u6570\u636e\u5e27\u7684CRC\u6821\u9a8c\u51fa\u9519\u65f6\uff1b\n\n2.5.4\u6536\u53d7\u5230\u6570\u636e\u5e27\u7684\u547d\u4ee4\u7801\u51fa\u9519\u65f6\u3002\n\n**2.5** \u5f02\u5e38\u54cd\u5e94\n\n\u5f53\u4ece\u673a\u63a5\u53d7\u5230\u4e00\u4e2a\u53d1\u7ed9\u672c\u673a\u7684\u6570\u636e\u5e27\u3001 CRC\u6821\u9a8c\u6b63\u786e\uff0c\u5e76\u68c0\u6d4b\u5230\u5f02\u5e38\u65f6\uff0c\n\n\u4ece\u7ad9\u54cd\u5e94\u4e3a\uff1a addr, function_code+128,error_code,CRC\n\n\u5907\u6ce8\uff1a function_code\uff1a\u4e3a\u4e3b\u673a\u547d\u4ee4\u5e27\u4e2d\u7684\u529f\u80fd\u7801(\u7b2c\u4e8c\u4e2a\u5b57\u8282)\uff0c function_code+128\u5373\u529f\u80fd\u7801\n\n\u5b57\u8282\u7684\u6700\u9ad8\u4f4d\u7f6e1\uff0c\u8868\u793a\u5f02\u5e38\uff1b\n\n\u88684\n\n\u6570\u503c\u6545\u969c\u542b\u4e4902\u53d8\u91cf\u5730\u5740\u65e0\u654803\u6570\u503c\u65e0\u6548\n\n## \u6570\u636e\u7c7b\u578b\n\n\u5728\u8868\u683c\u4e2d\u7684\u6570\u636e\u67093\u79cd\u7c7b\u578b\uff1a     BIN \u3001BCD\u7801\u548cASCII\u7801\uff1a\n\n3.1 \u3001BIN \uff1a\u4e8c\u8fdb\u5236\u6570\uff0c\u9ad8\u5b57\u8282\u5728\u524d\uff0c\u4f4e\u5b57\u8282\u5728\u540e\uff1b\u5206\u522b\u67094\u79cd\u60c5\u5f62\uff1a\n\n1\u5b57\u8282(\u65e0\u5c0f\u6570\uff0c\u65e0\u7b26\u53f7)\uff1b\n\n2\u5b57\u8282(\u65e0\u5c0f\u6570\uff0c\u65e0\u7b26\u53f7)\uff1b\n\n4\u5b57\u8282(\u6700\u540e1\u4e2a\u5b57\u8282\u8868\u793a\u5c0f\u6570\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u6700\u9ad8\u4f4d\u4ee3\u8868\u7b26\u53f7\u4f4d\uff0c 1\u8868\u793a\u8d1f\u6570\uff0c 0\u8868\u793a\u6b63\u6570)\u3002        8\u5b57\u8282(\u6700\u540e2\u4e2a\u5b57\u8282\u8868\u793a\u5c0f\u6570\uff0c\u65e0\u7b26\u53f7\u4f4d\uff1b\u5b9e\u65f6\u8bb0\u5f55\u663e\u793a\u7684\u5de5\u51b5\u7d2f\u79ef\u91cf\u548c\u6807\u51b5\u7d2f\u79ef\u91cf\u5c0f\u6570\u4f4d\u540e\u4e00\u4e2a\u5b57\n\n\u8282\u9ed8\u8ba4\u4e3a00\uff0c\u5c0f\u6570\u4f4d\u6309\u4e00\u4e2a\u5b57\u8282\u8ba1\u7b97)\u3002\n\n3.2 \u3001BCD\u7801\uff1a 1\u4e2a\u5b57\u8282\u8868\u793a2\u4f4d\u6570\u503c\uff0c\u6570\u503c\u8303\u56f4\u4e3a0\uff0d9\u3002\n\n3.3 \u3001ASCII\u7801 \uff1a\u5b57\u7b26\uff0c 8\u4f4d\uff0c\u4e00\u4e2a\u5b57\u8282ASCII\u7801\uff0c\u8868\u793a1\u4e2a\u82f1\u6587\u5b57\u6bcd\u6216\u6570\u5b57\u3002\n\n## \u7279\u6b8a\u8bf4\u660e\n\n\u4e3a\u4e86\u517c\u5bb9\u539f\u81ea\u5b9a\u4e49\u7684\u6d41\u91cf\u8ba1\u901a\u8baf\u534f\u8bae\uff0c\u589e\u52a0\u4e00\u6761\u7279\u6b8a\u7684\u6307\u4ee4\u683c\u5f0f\uff1a\n\n4.1\u3001\u6570\u636e\u4f4d\u4e3a8\u4f4d\uff0c\u65e0\u5947\u5076\u6821\u9a8c\u3002\u5373\u5c06\u901a\u4fe1\u6a21\u5f0fCod\u8bbe\u5b9a\u4e3a10\u3002\n\n4.2\u3001\u6d41\u91cf\u8ba1\u7684\u5730\u5740(ADDR)\u51fa\u5382\u9ed8\u8ba4\u503c\u4e3a023\uff0c\u5373\u5341\u516d\u8fdb\u5236\u768417\u3002\n\n4.3 \u300102\u547d\u4ee4\u8bfb\u6d4b\u91cf\u53c2\u6570\n\n4.3.1 \u3001\u4e0a\u4f4d\u673a\u5411\u6d41\u91cf\u8ba1\u53d1\u9001\uff1a\n\n55H, 55H, ADDR, 02 \uff0c00, ChkSum\n\n4.3.2\u3001\u6d41\u91cf\u8ba1\u5411\u4e0a\u4f4d\u673a\u5e94\u7b54\u7684\u6570\u636e\u5e27\uff1a\n\n55H, 55H, ADDR, 02, 18, DevStatus, DevErr, Qm, Qo, t, p, sum, ChkSum\n\n\u5907\u6ce8\uff1a\n\n     55H \uff0c55H\u4e3a\u6570\u636e\u5e27\u7684\u5f15\u5bfc\u5b57\u7b26\uff0c\u8868\u793a\u6570\u636e\u5e27\u7684\u5f00\u59cb\uff1b\n\n     ADDR \u4e3a\u6d41\u91cf\u8ba1\u7684\u901a\u4fe1\u5730\u5740\uff0c 1\u4e2a\u5b57\u8282\uff0c\u53d6\u503c\u8303\u56f41\u2014247\u3002\n\n     02 \u4e3a\u901a\u4fe1\u547d\u4ee4\u53f7\uff0c 1\u4e2a\u5b57\u8282\uff0c\u8bfb\u6d4b\u91cf\u53c2\u6570\u3002\n\n     18\u4e3a\u6570\u636e\u957f\u5ea6\uff0c 1\u4e2a\u5b57\u8282\uff0c\u8868\u793a\u5b83\u540e\u9762\u670918H\u4e2a\u5b57\u8282\u7684\u6570\u636e\u3002\n\n     Qm(\u5de5\u51b5\u6d41\u91cf) \uff0cQo(\u6807\u51b5\u6d41\u91cf) \uff0ct(\u6e29\u5ea6) \uff0cp(\u538b\u529b) \uff0csum(\u7d2f\u79ef\u91cf)\u3002\n\n     ChkSum  \u4e3a\u6821\u9a8c\u548c\uff0c 1\u4e2a\u5b57\u8282\uff0c\u5176\u6570\u503c\u662f\u4eceAddress\u8d77\u5230ChkSum\u524d\u7684\u5168\u90e8\u6570\u636e\u4e4b\u548c\u7684\u4f4e8\u4f4d\u6570\u636e\uff1b      DevStatus \uff1a\u4e3a\u72b6\u6001\u7801\uff0c 1\u4e2a\u5b57\u8282\uff0c\u5176\u5404\u4f4d\u7684\u542b\u4e49\u89c1\u88685\uff1a\n\n\u88685\n\n BIT7BIT6BIT5BIT4BIT3BIT2BIT1BIT01\u547d\u4ee4\u4e0d \u54cd\u5e94Qo\u62a5\u8b66\u7761\u7720\u6709\u5916\u7535\u6e90\u538b\u7f29\u56e0 \u5b50\u8865\u507f\u6709\u6309\u952e\u7535\u6c60\u6b20\u538b\u6d41\u91cf\u504f\u5c0f0\u547d\u4ee4\u54cd\u5e94Qo   \u4e0d\u62a5\u8b66\u4e0d\u7761\u7720\u65e0\u5916\u7535\u6e90\u4e0d\u8865\u507f\u65e0\u6309\u952e\u7535\u6c60\u6b63\u5e38\u6d41\u91cf\u6b63\u5e38\n\n     DevErr\uff1a\u4e3a\u6545\u969c\u4ee3\u7801 \uff0c1\u4e2a\u5b57\u8282\uff0c\u5176\u5404\u4f4d\u7684\u542b\u4e49\u89c1\u88686\uff1a\n\n\u88686\n\n BIT7BIT6BIT5BIT4BIT3BIT2BIT1BIT01\u9891\u7387\u7535\u8def\u6545\u969c\u6e29\u5ea6\u4f20\u611f\u5668\u5f02\u5e38\u538b\u529b\u4f20\u611f\u5668\u5f02\u5e38A\/D\u8f6c\u6362\u7535\u8def\u5f02\u5e38RAM\u6545\u969cEEPROM\u6545\u969c\u4e32\u884c\u53e3 \u901a\u4fe1 \u6545\u969c\u65f6\u949f\u7535\u8def\u6545\u969c0\u9891\u7387\u7535\u8def\u6b63\u5e38\u6e29\u5ea6\u4f20\u611f\u5668\u6b63\u5e38\u538b\u529b\u4f20\u611f\u5668\u6b63\u5e38A\/D\u8f6c\u6362\u7535\u8def\u6b63\u5e38RAM\u6b63\u5e38EEPROM\u6b63\u5e38\u4e32\u884c\u53e3 \u901a\u4fe1 \u6b63\u5e38\u65f6\u949f\u7535\u8def\u6b63\u5e38\n\n  \u5de5\u51b5\u6d41\u91cf\u3001\u6807\u51b5\u6d41\u91cf\u3001\u6e29\u5ea6\u3001\u538b\u529b\u91c7\u75284\u4e2a\u5b57\u8282(\u5355\u7cbe\u5ea6)\u7684\u6d6e\u70b9\u6570\u8868\u793a\uff0c\u4f9d\u6b21\u4e3aP \uff0cSMH \uff0cMM \uff0cM\n\nL\uff0c\u7528F  (Float)\u8868\u793a\uff1a FloatData = \u00b10.MH-MM-ML*2P\n\n  \u7d2f\u79ef\u91cf\u91c7\u75286\u4e2a\u5b57\u8282\u7684\u6d6e\u70b9\u6570\u8868\u793a\uff0c\u4f9d\u6b21\u4e3aP \uff0cSMH \uff0cMM \uff0cML \uff0cML1 \uff0cML2\uff0c\u7528F  (Float)\u8868\u793a\uff1a\n\nFloatData = \u00b10.MH-MM-ML-ML1-ML2*2P\n\n\u5176\u4e2d\uff1a P \uff1a   \u9636\u7801\uff0c 1\u4e2a\u5b57\u8282\uff0c\u4ee5\u5341\u516d\u8fdb\u5236\u8865\u7801\u7684\u5f62\u5f0f\u8868\u793a\u3002\n\nSMH \uff1a\u5c3e\u6570\u7684\u9ad8\u5b57\u8282\uff0c 1\u4e2a\u5b57\u8282\uff0c\u6700\u9ad8\u4f4d(\u7b2c7\u4f4d)\u4e3a\u7b26\u53f7\u4f4dS \uff0cS=1 \u8868\u793a\u6570\u636e\u4e3a\u8d1f\uff0c S=0 \u5219\u6570\u636e\u4e3a\u6b63\uff1b\u5176\u4f597\u4f4d\u4e3a\u6d6e\u70b9\u6570\u5c3e\u6570\u7684\u9ad87\u4f4d\uff0c\u7b2c0\u52306\u4f4d\u3002\n\nMM  \uff1a\u5c3e\u6570\u7684\u4e2d\u95f4\u5b57\u8282\uff0c 1\u4e2a\u5b57\u8282\uff0c\u7b2c7\u523014\u4f4d\u3002\n\nML  \uff1a  \u5c3e\u6570\u7684\u4f4e\u5b57\u8282\uff0c 1\u4e2a\u5b57\u8282\uff0c\u7b2c15\u523023\u4f4d\u3002\n\nML1 \uff1a  \u5c3e\u6570\u7684\u4f4e\u5b57\u8282\uff0c 1\u4e2a\u5b57\u8282\uff0c\u7b2c24\u523031\u4f4d\u3002\n\nML2 \uff1a  \u5c3e\u6570\u7684\u4f4e\u5b57\u8282\uff0c 1\u4e2a\u5b57\u8282\uff0c\u7b2c32\u523039\u4f4d\u3002\n\n\u793a\u4f8b**3**\uff1a\n\n  \u4e0a\u4f4d\u673a\u5411\u6d41\u91cf\u8ba1\u53d1\u9001\u7684\u6570\u636e\u5e27\uff1a\n\n55     55     17      02    00       19   \n\n55H  55H   ADDR   CMD  Len1   ChkSum\n\n  \u6d41\u91cf\u8ba1\u5411\u4e0a\u4f4d\u673a\u5e94\u7b54\u7684\u6570\u636e\u5e27\uff1a\n\n55    55     17      02    18      15         00      00 00 00 00     00 00 00 00      05 50 00 00      07 65 4C CC\n\n55H  55H  ADDR  02   18   DevStatus   DevErr     Qm          Qo          t             p\n\n16 72 82 4A 49 25     E1\n\nsum       ChkSum\n\n  \u4ee5\u9636\u7801\u7684\u5341\u8fdb\u5236\u6570\u503c\u4e3a\u754c\u7ebf\u628a\u5c3e\u6570\u5206\u6210\u6574\u6570\u548c\u5c0f\u6570\u90e8\u5206\uff0c\u518d\u8fdb\u884c\u4e8c\u8fdb\u5236\u81f3\u5341\u8fdb\u5236\u8f6c\u6362\u8ba1\u7b97\u3002   \n\n\u9644\u6570\u636e\u5305\u8bf4\u660e\uff1a\n\n55 55 17 02 18          \uff0d\uff0d\uff0d\n\n15\n\n00\n\n00 00 00 00 00 00 00 00 05 50 00 00\n\n07 65 4C CC\n\n\uff0d\uff0d\uff0d\u72b6\u6001\u7801\n\n\uff0d\uff0d\uff0d\u6545\u969c\u7801\n\n\uff0d\uff0d\uff0d\u5de5\u51b5\u77ac\u65f6\u6d41\u91cf\uff1d0\n\n\uff0d\uff0d\uff0d\u6807\u51b5\u77ac\u65f6\u6d41\u91cf\uff1d0\n\n\uff0d\uff0d\uff0d\u6e29\u5ea6\uff1d0.10100  000000000000000000\u00d72\u22270101=20\n\n\uff0d\uff0d\uff0d\u538b\u529b\uff1d0.1100101  0100110011001100\u00d72\u22270111\uff1d101.29998779\n\n16 72 82 4A 49 25      \uff0d\uff0d\uff0d\u7d2f\u8ba1\u91cf\uff1d0.1110010100000100100101  00100100100100101\u00d72\u222710110 =3752229. 1428604125\n\nE1                       \uff0d\uff0d\uff0d\u6821\u9a8c\u548c\n\n4.3.3  \u81ea\u5b9a\u4e49\u7684\u6d41\u91cf\u8ba1\u901a\u8baf\u534f\u8bae\u6d6e\u70b9\u6570\u89e3\u6790\n\n\u4e0b\u9762\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u89e3\u67904\u4e2a\u5b57\u8282\u6d6e\u70b9\u6570\u548c6\u4e2a\u5b57\u8282\u7684\u6d6e\u70b9\u6570\u3002\n\n\u6e29\u5ea6\uff1a  05 50 00 00 \u6839\u636e\u6570\u636e\u7c7b\u578b\u7684\u5b9a\u4e49\uff0c  P=(05)H=(0101) 2   = 5\n\nSMH=(50)H=(01010000) 2      MM=00  ML=00\n\n\u3002\u56e0\u4e3aSMH\u6700\u9ad8\u4f4d\u4e3a0\uff0c\u6545\u5c3e\u6570\u662f\u6b63\u7684\u3002\u800c\u9636\u7801P\u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\u4e3a5\uff0c\u6545\u5728\u5c3e\u6570\u8f6c\u4e3a\u4e8c\u8fdb\u5236\u540e\uff0c\u524d5\u4f4d\u4e3a\u6574\u6570 \u90e8\u5206\uff0c\u5176\u4f59\u4e3a\u5c0f\u6570\u90e8\u5206\u3002\n\nFloatData =   0       10100       0000000000 00000000       \u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\n\n\u6b63     \u6574\u6570\u90e8\u5206          \u5c0f\u6570\u90e8\u5206\n\nFloatData = 1\u00d724   + 1\u00d722   = 20\n\n\u538b\u529b\uff1a  07 65 4C CC \u5176\u4e2d P=(07)H =(0111) 2  =7 SMH=(65)H=(01100101) 2 MM=(4C)H=(01001100) 2 ML=(CC)H=(11001100) 2\n\n\u56e0\u4e3aSMH\u4e2d\u6700\u9ad8\u4f4d\u4e3a0\uff0c\u6545\u5c3e\u6570\u662f\u6b63\u7684\uff0c\u800c\u9636\u7801P\u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\u4e3a7\uff0c\u6545\u5728\u5c3e\u6570\u8f6c\u4e3a\u4e8c\u8fdb\u5236\u540e\uff0c\u67097\u4f4d\u662f\u6574\u6570 \u90e8\u5206\uff0c\u5176\u4f59\u4e3a\u5c0f\u6570\u90e8\u5206\u3002\n\nFloatData = 0    1100101    01001100 11001100    \u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\n\n\u6b63   \u6574\u6570\u90e8\u5206       \u5c0f\u6570\u90e8\u5206\n\nFloatData= 1\u00d726   + 1\u00d725   + 1\u00d722   + 1\u00d720   + 1\u00d72-2   + 1\u00d72-5   + 1\u00d72-6\n\n+ 1\u00d72-9   + 1\u00d72- 10   + 1\u00d72- 13   + 1\u00d72- 14   = 101.29998779\n\n\u7d2f\u79ef\u91cf\uff1a16 72 82 4A 49 25\u5176\u4e2d P=(16)H=(00010110) 2  = 22 SMH=(72)H=(01110010) 2                              MM=(82)H=(10000010) 2 ML=(4A)H=(01001010) 2 ML1=(49)H=(01001001) 2  ML2=(25)H=(00100101) 2 \uff0cSMH\u4e2d\u6700\u9ad8\u4f4d\u4e3a0\uff0c\u6545\u5c3e\u6570\u4e3a\u6b63\uff0c\u800c\u9636\u7801P\u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\u4e3a22\uff0c\u6545\u5728\u5c3e\u6570\u4e3a\u4e8c\u8fdb\u5236\u65f6\uff0c\u670922\u4f4d\u662f\u6574\u6570\u90e8\u5206 \uff0c\u5176\u4f59\u4e3a\u5c0f\u6570\u90e8\u5206\u3002\n\nFloatData = 0   1110010 10000010 0100101 0 01001001 00100101   \u8f6c\u4e3a\u5341\u8fdb\u5236\u6570\n\n\u6b63         \u6574\u6570\u90e8\u5206               \u5c0f\u6570\u90e8\u5206\n\nFloatData =1\u00d7221   + 1\u00d7220   + 1\u00d7219   + 1\u00d7216   + 1\u00d7214   + 1\u00d728   + 1\u00d725   + 1\u00d722   + 1\u00d720+ 1\u00d72-3   + 1\u00d72-6   + 1\u00d72-9   + 1\u00d72- 12   +1\u00d72- 15   + 1\u00d72- 17   = 3752229.1428604125\n\n---\n*modbus.cn*\n"