"# \u677e\u5c9b\u540a\u9876\u9664\u6e7f\u673aModbus\u901a\u8baf\u534f\u8bae\n\n> 2023-08-18 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/24410.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\n\u901a\u4fe1\u534f\u8bae:\n\n\u672c\u901a\u8baf\u91c7\u7528\u6807\u51c6Modbus RTU\u901a\u8baf\u534f\u8bae\uff0c\u652f\u630101 04 05 06 \u529f\u80fd\u7801\uff0c \u6570\u636e\u4e3a\u6574\u578b16\u4f4d\u3002\n\n\u901a\u4fe1\u6ce2\u7279\u7387\uff1a1200 2400 4800 9600 \u53ef\u8bbe\u7f6e\uff08\u4e0a\u7535\u9ed8\u8ba4\u6ce2\u7279\u7387\u4e3a1200\uff0c\uff09\uff0c\u5730\u5740\uff1a1\uff5e254\u53ef\u8bbe\u7f6e\uff08\u51fa\u5382\u9ed8\u8ba4\u5730\u5740\u4e3a01\uff09\uff0c1\u4f4d\u8d77\u59cb\u4f4d\uff0c8\u4f4d\u6570\u636e\u4f4d\uff0c\u65e0\u5947\u5076\u6821\u9a8c\n\n## \u4e00 \u529f\u80fd\u7801 01\n\n\u5bf9\u8fdc\u7a0b\u8bbe\u5907\u8bfb\u53d6\u7ebf\u5708\u72b6\u6001\uff08\u5f00\u5173\u91cf\u6570\u636e\uff0c\u6bcf\u4e00\u4f4d\u4ee3\u8868\u4e00\u4e2a\u5f00\u5173\u91cf\uff0c0=\u5173 1=\u5f00\uff0c\u5730\u5740\u4ee5\u4f4d\u5730\u5740\u8868\u793a\uff0c\u6570\u636e\u4ee5\u5b57\u8282\u8868\u793a\uff0c\u4e0d\u8db3\u4e00\u5b57\u8282\u4f4d\uff0c\u9ad8\u4f4d\u4ee50\u586b\u5145\uff09\n\n\u5bf9\u5730\u5740 01 \u8bfb\u53d6\u5f53\u524d\u8bbe\u5907\u5f00\u5173\u91cf\u72b6\u6001\n\n\u4e3b\u673a\u8bf7\u6c42\uff1a\u53d1\u9001\u6570\u636e\u4e3a 010100000018010100000018  \u5730\u5740\u529f\u80fd\u7801\u8d77\u59cb\u5730\u5740\u7ebf\u5708\uff08\u5f00\u5173\u91cf\uff09\u6570\u91cfCRCLCRCH\u4ece\u673a\u5e94\u7b54\uff1a\u8fd4\u56de\u6570\u636e\u4e3a 0101010101030000            007A37\u5730\u5740\u80fd\u7801\u5b57\u8282\u6570\u7ebf\u5708\u72b6\u60011\u7ebf\u5708\u72b6\u60012    \u7ebf\u5708\u72b6\u60013CRCLCRCH\n\n\u672c\u901a\u8baf\u8bbe\u7f6e24\u4e2a\u5728\u7ebf\u8bfb\u53d6\u7ebf\u5708\uff08\u5f00\u5173\u91cf\uff09\uff0c\u7ebf\u5708\u5730\u5740=0x0000~0x0017\n\n\u8fd4\u56de\u7ebf\u5708\u72b6\u60011\uff0c\u5730\u57400~7\uff08\u4e00\u5b57\u8282\u6570\u636e\uff09\n\nD7=\u538b\u673a\u5f00\/\u5173    D6=\u9ad8\u98ce\u5f00\/\u5173   D5=\u4e2d\u98ce\u5f00\/\u5173    D4=\u4f4e\u98ce\u5f00\/\u5173\n\nD3=\u62a5\u8b66\u5f00\/\u5173  D2=\u9884\u7559   D1=\u9884\u7559    D0=\u9884\u7559\n\n\u8fd4\u56de\u7ebf\u5708\u72b6\u60012\uff0c\u5730\u57408~F\uff08\u4e00\u5b57\u8282\u6570\u636e\uff09\n\nD7=\u5f00\/\u5173\u673a      D6=\u5316\u971c        D5=\u4fdd\u7559       D4=\u9664\u6e7f\/\u901a\u98ce(0=\u9664\u6e7f  1=\u901a\u98ce)\n\nD3=\u4fdd\u7559         D2=\u6e7f\u63a7         D1=\u4fdd\u7559       D0=\u4fdd\u7559\n\n\u8fd4\u56de\u7ebf\u5708\u72b6\u60013\uff0c\u5730\u574010~17\uff08\u4e00\u5b57\u8282\u6570\u636e\uff09 \u4fdd\u62a4\u72b6\u6001\u9884\u7559\n\nD7=\u4fdd\u7559        D6=\u4fdd\u7559       D5=\u4fdd\u7559        D4=\u4fdd\u7559\n\nD3=\u4fdd\u7559        D2=\u4fdd\u7559       D1=\u4fdd\u7559        D0=\u4fdd\u7559\n\n\u4f8b\u5982\u4e3b\u673a\u53d1\u9001\uff1a01 01 00 00 00 18 3c 00\n\n\u5bf9\u5730\u57401\u8bbe\u5907 \u8bfb\u53d6\u5f53\u524d\u8bbe\u5907\u72b6\u6001\n\n## \u4e8c  \u529f\u80fd\u7801 04\n\n\u5bf9\u8fdc\u7a0b\u8bbe\u5907\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u8bbe\u5907\u4fe1\u606f\uff08\u6bcf\u4e2a\u4fe1\u606f\u53c2\u6570\u5f71\u5c04\u4e3a\u4e00\u4e2a\u5bc4\u5b58\u5668\uff09\uff0c16\u4f4d\u6570\u636e\u683c\u5f0f\uff0cHEX\u7801\uff0c\u9ad8\u5b57\u8282\u5728\u524d\n\n\u5bf9\u5730\u574001 \u8bfb\u53d6\u5f53\u524d\u8bbe\u5907\u53c2\u6570\n\n\u4e3b\u673a\u8bf7\u6c42\uff1a\u53d1\u9001\u6570\u636e\u4e3a 01040000000271CB01040000000271CB\u5730\u5740\u529f\u80fd\u7801\u8d77\u59cb\u5bc4\u5b58\u5668\u5730\u5740\u8f93\u5165\u5bc4\u5b58\u5668\u6570\u91cfCRCLCRCH\u4ece\u673a\u5e94\u7b54\uff1a\u8fd4\u56de\u6570\u636e\u4e3a 01040400C8012C7A37\uff08\u6e29\u5ea6\uff1a20.0\u2103  \u6e7f\u5ea630.0%RH\uff0901040400C8012C7A37\u5730\u5740\u529f\u80fd\u7801\u5b57\u8282\u6570\u8bbe\u5b9a\u6e7f\u5ea6\uff08HEX\uff09\u5f53\u524d\u6e7f\u5ea6\uff08HEX\uff09CRCLCRCH\n\n\u672c\u901a\u8baf\u8bbe\u7f6e4\u4e2a\u5bc4\u5b58\u5668\uff08\u6570\u636e\u91cf\uff09\uff0c\u5730\u5740 0x0000~0x0003  \u4e00\u6b21\u8bfb\u53d62\u4e2a\u6570\u636e\uff0c\u6240\u4ee5\u8f93\u5165\u5bc4\u5b58\u5668\u6570\u91cf\u6052\u7b49\u4e8e 0x0002\uff0c\u5730\u5740=0x0000 \u6216 0x0002\n\n\u5730\u5740\u5206\u914d\uff1a\n\n0x0000: \u8bbe\u5b9a\u6e7f\u5ea6            0x0001: \u5f53\u524d\u6e7f\u5ea6\n\n0x0002: \u76d8\u7ba1\u6e29\u5ea6            0x0003: \u9884\u7559\n\n\u6ce81\uff1a\u6e29\u6e7f\u5ea6\u6570\u636eH\uff08\u9ad8\u4f4d\u5b57\u8282\uff09\u548c\u6570\u636eL\uff08\u4f4e\u4f4d\u5b57\u8282\uff09\u4e3a\u5404\u81ea\u5bf9\u5e94\u7684\u5f53\u524d\u6e29\u6e7f\u5ea6\u503c\uff1a\n\n\u4e0a\u4f20\u6570\u636e\u9700\u9664\u4ee510\uff0c\u5982\u6e7f\u5ea6\u4e0a\u4f2016\u8fdb\u5236\u30000311\uff0c\u5bf9\u5e94\u5341\u8fdb\u523600785\uff0c\u8868\u793a78.5%\u3002\n\n\u6ce82\uff1a\u96f6\u4e0b\u6e29\u5ea6\u7528\u8d1f\u6570\u8868\u793a \u5982\u4e0a\u4f20 -11.5\u2103\u3002\u5219 11.5\u2103\u5bf9\u5e94\u5341\u8fdb\u5236\u6b63\u6570=115 16\u8fdb\u5236=0x73\n\n\u8d1f\u6570\u7528\u8865\u7801\uff0c\u5219= 0xFFFF-0x0073= 0Xff8C\n\n\u6ce83: \u6e29\u6e7f\u5ea6\u6570\u636e\u6545\u969c\u65f6 \u6570\u636e=0xFFFF\n\n\u4f8b\u5982\u4e3b\u673a\u53d1\u9001\uff1a01 04 00 00 00 02 71 CB\n\n\u5bf9\u5730\u57401\u8bbe\u5907 \u8bfb\u53d6\u4ece00 00 \u5730\u5740\u5f00\u59cb\u7684 2\u5b57\u8282\u6570\u636e \uff08\u5373\u8bbe\u5907 \u8bbe\u5b9a\u6e7f\u5ea6\u548c\u5f53\u524d\u6e7f\u5ea6\uff09\n\n## \u4e09  \u529f\u80fd\u7801 05\n\n\u5bf9\u8fdc\u7a0b\u8bbe\u5907\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u5355\u4e2a\u7ebf\u5708\uff08\u5bf9\u5355\u4e2a\u5bc4\u5b58\u5668\u5199ON\/OFF\u72b6\u6001\uff0c\u6bcf\u4e2a\u5f00\u5173\u91cf\u5f71\u5c04\u4e3a\u4e00\u4e2a\u5bc4\u5b58\u566816\u4f4d\u6570\u636e\u683c\u5f0f\uff0cHEX\u7801\uff0c\u9ad8\u5b57\u8282\u5728\u524d \uff0cFF00=\u5f00\uff0c0000=\u5173\uff09\n\n\u5bf9\u5730\u57401\u8bbe\u5907\u5199\u5165\u5f00\u673a\u547d\u4ee4\n\n\u4e3b\u673a\u8bf7\u6c42\uff1a\u53d1\u9001\u6570\u636e\u4e3a01050000FF00 01050000FF00  \u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u5bc4\u5b58\u5668\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u5bc4\u5b58\u5668\u6570\u636e\u4f4e\u4f4dCRCLCRCH \u4ece\u673a\u8fd4\u56de\uff1a\u8fd4\u56de\u6570\u636e\u4e3a01050000FF00 01050000FF00  \u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u6570\u636e\u4f4e\u4f4dCRCLCRCH\n\n\u672c\u901a\u8baf\u8bbe\u7f6e1\u4e2a\u5728\u7ebf\u5199\u5165\u7ebf\u5708\uff08\u5f00\u5173\u91cf\uff09\uff0c\u7ebf\u5708\u5730\u5740=0x0000\n\n\u4f8b\u5982\u4e3b\u673a\u53d1\u9001\uff1a01 05 00 00 ff 00 8c 3a\n\n\u5bf9\u5730\u57401\u8bbe\u5907 \u8bbe\u7f6e\u5f00\u673a\n\n\u4f8b\u5982\u4e3b\u673a\u53d1\u9001\uff1a01 05 00 00 00 00 cd ca\n\n\u5bf9\u5730\u57401\u8bbe\u5907 \u8bbe\u7f6e\u5173\u673a\n\n## \u56db  \u529f\u80fd\u7801 06\n\n\u5bf9\u8fdc\u7a0b\u8bbe\u5907\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5bf9\u5355\u4e2a\u5bc4\u5b58\u5668\u5199\u6570\u636e\u4fe1\u606f\uff08\u6bcf\u4e2a\u4fe1\u606f\u53c2\u6570\u5f71\u5c04\u4e3a\u4e00\u4e2a\u5bc4\u5b58\u5668\uff09\uff0c16\u4f4d\u6570\u636e\u683c\u5f0f\uff0cHEX\u7801\uff0c\u9ad8\u5b57\u8282\u5728\u524d\n\n\u672c\u534f\u8bae\u5b9a\u4e49\u89c4\u5b9a11\u4e2a\u53c2\u6570\u91cf\u5199\u5165\uff0c\u5206\u522b\u5bf9\u5e94\u5730\u5740\u5982\u4e0b\uff1a\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\u5730\u5740\uff1a0x0000     \u5199\u5165\u8fd0\u884c\u6a21\u5f0f  0x0000=\u9664\u6e7f  0x0001=\u901a\u98ce\n\n0x0001     \u5199\u5165\u8bbe\u5b9a\u6e7f\u5ea6 HEX\u7801\uff0c\u5e26\u4e00\u4f4d\u5c0f\u6570\n\n0x0002     \u5199\u5165\u5f53\u524d\u65f6\u95f4 HEX\u7801\uff0c\u9ad8\u5b57\u8282\u5c0f\u65f6\uff0c\u4f4e\u5b57\u8282\u5206\n\n0x0003     \u5199\u5165\u8bbe\u5b9a\u5b9a\u65f6\u5f00\u673a HEX\u7801\uff0c\u9ad8\u5b57\u8282\u5c0f\u65f6\uff0c\u4f4e\u5b57\u8282\u5206\n\n0x0004     \u5199\u5165\u8bbe\u5b9a\u5b9a\u65f6\u5173\u673a HEX\u7801\uff0c\u9ad8\u5b57\u8282\u5c0f\u65f6\uff0c\u4f4e\u5b57\u8282\u5206\n\n0x0005~0x0008  \u9884\u7559\u63a7\u5236\n\n0x0009     \u5199\u5165\u8bbe\u5907\u5730\u5740\u4fee\u6b63\u503cHEX\u7801\uff0c\u9ad8\u5b57\u8282=0\uff0c\u4f4e\u5b57\u82820~254\n\n0x000a     \u5199\u5165\u901a\u8baf\u6ce2\u7279\u7387\u4fee\u6b63\u503cHEX\u7801\uff0c\n\n\u53d1\u9001\u4f8b\u5b50\uff1a\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u901a\u98ce\u6a21\u5f0f\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 00 00 01 48 0a\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u8bbe\u5b9a\u6e7f\u5ea6 48 %\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 01 01 e0 d8 12\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u5f53\u524d\u65f6\u95f4  8:30\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 02 08 1e af c2\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u5b9a\u65f6\u5f00\u673a\u65f6\u95f4  10:40\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 03 0a 28 7f 74\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u5b9a\u65f6\u5173\u673a\u65f6\u95f4  13:12\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 04 0d 0c cc 9e\n\n\u4f8b\u5982\uff1a \u5bf9\u5730\u57401\u5199\u5165 \u628a\u5730\u57401\u53d8\u4e3a \u5730\u57402\n\n\u6ce8\uff1a\u5730\u5740\u5bc4\u5b58\u5668=0x0009  \u673a\u5668\u5730\u5740\u6709\u6548\u6570\u636e\u662f\u5355\u5b57\u8282\uff0c\u5730\u5740\u503c\u9ad8\u4f4d=0\uff1b\u4f4e\u4f4d0~254\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 09 00 02 d8 09\n\n\u4e3b\u673a\u8bf7\u6c42\uff1a\u53d1\u9001\u6570\u636e\u4e3a01060009000209D8\uff08\u5730\u57401\u6539\u4e3a2\uff09 01060009000209D8\u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u5bc4\u5b58\u5668\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u5bc4\u5b58\u5668\u6570\u636e\u4f4e\u4f4dCRCLCRCH \u4ece\u673a\u8fd4\u56de\uff1a\u8fd4\u56de\u6570\u636e\u4e3a01060009000209D8 01060009000209D8\u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u6570\u636e\u4f4e\u4f4dCRCLCRCH\n\n\u4f8b\u5982\uff1a\u5bf9\u5730\u57401   \u5f53\u524d\u6ce2\u7279\u7387\u4fee\u6539\u4e3a4800\uff084800\u768416\u8fdb\u5236\u4e3a12C0\uff09\n\n\u4e3b\u673a\u53d1\u9001\uff1a 01 06 00 0a 12 c0 a5 38\n\n\u4e3b\u673a\u8bf7\u6c42\uff1a\u53d1\u9001\u6570\u636e\u4e3a0106000A12C0A538\uff08\u6ce2\u7279\u73879600\u6539\u62104800\uff09 0106000A12C0A538\u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u6570\u636e\u4f4e\u4f4dCRCLCRCH \u4ece\u673a\u8fd4\u56de\uff1a\u8fd4\u56de\u6570\u636e\u4e3a0106000A12C0A538 0106000A12C0A538\u5730\u5740\u529f\u80fd\u7801\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u9ad8\u4f4d\n\n\u9884\u7f6e\u5bc4\u5b58\u5668\n\n\u5730\u5740\u4f4e\u4f4d\n\n\u7f6e\u5165\u6570\u636e\u9ad8\u4f4d\u7f6e\u5165\u6570\u636e\u4f4e\u4f4dCRCLCRCH\n\n\u6ce83\uff1a\u9519\u8bef\u4ee3\u7801\u5e27\u683c\u5f0f\n\n\u5730\u5740 \u9519\u8bef\u7801 \u5f02\u5e38\u7801 CRCL CRCH\n\n\u9519\u8bef\u7801=\u529f\u80fd\u7801+0x80\n\n\u5f02\u5e38\u7801=01 \u621602 \u621603 \u6216 04\n\n01=\u65e0\u6548\u64cd\u4f5c\u7801\n\n02=\u65e0\u6548\u6570\u636e\u5730\u5740\n\n03=\u6570\u636e\u5f02\u5e38\n\n04=MB \u9519\u8bef\n\n\u6ce84\uff1aCRC \u6821\u9a8c\u65b9\u6cd5\n\nCRC \u751f\u6210\u51fd\u6570\n\nunsigned short CRC16 ( puchMsg\uff0c usDataLen )  \/* \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                          *\/\n\n{\n\nunsigned char uchCRCHi = 0xFF ;  \/* CRC  \u7684\u9ad8\u5b57\u8282\u521d\u59cb\u5316                    *\/\n\nunsigned char uchCRCLo = 0xFF ;  \/* CRC  \u7684\u4f4e\u5b57\u8282\u521d\u59cb\u5316                    *\/\n\nunsigned uIndex ;  \/* CRC \u67e5\u8be2\u8868\u7d22\u5f15                          *\/\n\nwhile (usDataLen--)  \/* \u5b8c\u6210\u6574\u4e2a\u62a5\u6587\u7f13\u51b2\u533a                      *\/\n\n{\n\nuIndex = uchCRCLo ^ *puchMsgg++ ;  \/*  \u8ba1\u7b97  CRC                            *\/\n\nuchCRCLo = uchCRCHi ^ auchCRCHi[uIndex} ;\n\nuchCRCHi = auchCRCLo[uIndex] ;\n\n}\n\nreturn (uchCRCHi << 8 | uchCRCLo) ;\n\n}\n\n\u9ad8\u5b57\u8282\u8868\n\n\/* \u9ad8\u4f4d\u5b57\u8282\u7684CRC  \u503c *\/\n\nstatic unsigned char auchCRCHi[] = {\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1,\n\n0x81, 0x40, 0x01,\n\n0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,\n\n0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,\n\n0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80,\n\n0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01,\n\n0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00,\n\n0xC1, 0x81, 0x40,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81,\n\n0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1,\n\n0x81, 0x40, 0x01,\n\n0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01,\n\n0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,\n\n0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01,\n\n0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,\n\n0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81,\n\n0x40\n\n} ;\n\n\u4f4e\u5b57\u8282\u8868\n\n\/* \u4f4e\u4f4d\u5b57\u8282\u7684CRC  \u503c *\/\n\nstatic char auchCRCLo[] = {\n\n0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,\n\n0x05, 0xC5, 0xC4,\n\n0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB,\n\n0x0B, 0xC9, 0x09,\n\n0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE,\n\n0xDF, 0x1F, 0xDD,\n\n0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2,\n\n0x12, 0x13, 0xD3,\n\n0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,\n\n0x36, 0xF6, 0xF7,\n\n0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E,\n\n0xFE, 0xFA, 0x3A,\n\n0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B,\n\n0x2A, 0xEA, 0xEE,\n\n0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27,\n\n0xE7, 0xE6, 0x26,\n\n0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,\n\n0x63, 0xA3, 0xA2,\n\n0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD,\n\n0x6D, 0xAF, 0x6F,\n\n0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8,\n\n0xB9, 0x79, 0xBB,\n\n0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4,\n\n0x74, 0x75, 0xB5,\n\n0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,\n\n0x50, 0x90, 0x91,\n\n0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94,\n\n0x54, 0x9C, 0x5C,\n\n0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59,\n\n0x58, 0x98, 0x88,\n\n0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D,\n\n0x4D, 0x4C, 0x8C,\n\n0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,\n\n0x41, 0x81, 0x80,\n\n0x40\n\n};\n\n## \u5382\u5bb6\u4fe1\u606f\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/08\/20230818215657504.jpg)\n\n400-0858-758\n\nwww.hzsongdao.com\n\n\u676d\u5dde\u677e\u5c9b\u5b9e\u4e1a\u6709\u9650\u516c\u53f8\n\n\u7535\u8bdd\uff1a0571-85367531 \/ \u4f20\u771f\uff1a0571-85367531\n\n\u5730\u5740\uff1a\u676d\u5dde\u5e02\u4f59\u676d\u533a\u94b1\u6c5f\u7ecf\u6d4e\u5f00\u53d1\u533a\u987a\u98ce\u8def528\u53f7\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/08\/20230818215852847.jpg)\n\n---\n*modbus.cn*\n"