"# \u4e0a\u6d77\u5408\u548c\u8239\u7528\u7a7a\u8c03REV2.3\uff08DHP\u7a7a\u8c03\uff09Modbus\u901a\u8baf\u534f\u8bae\n\n> 2023-09-03 | 2026-06-30\n> https:\/\/www.modbus.cn\/en\/24643.html\n\n**\u8bbe\u5907\u5bc4\u5b58\u5668\u624b\u518c**\n\n---\n\n**\u901a\u8baf\u534f\u8bae**\n\n\u672c\u534f\u8bae\u91c7\u7528Modbus\u901a\u8baf\u65b9\u5f0f\uff0c\u6240\u652f\u6301\u6d88\u606f\u5e27\u4f20\u8f93\u6a21\u5f0f\uff1aRTU\u6a21\u5f0f\uff0c 8\u4f4d\u6570\u636e\u4f4d\uff0c1\u4f4d\u505c\u6b62\u4f4d\uff0c\u65e0\u6821\u9a8c\u4f4d\uff0cCRC\u6821\u9a8c\uff0c\u6821\u9a8c\u56e0\u5b50A001,\u6ce2\u7279\u73879600\u3002\n\n\u4fe1\u606f\u56de\u7b54\u7b49\u5f85\u6700\u957f\u65f6\u95f450ms\u3002\n\n****\u6709\u6548\u529f\u80fd\u4ee3\u7801\u8868\uff1a****\n\n\u529f\u80fd\u4ee3\u7801\u63cf\u8ff002(02H)Read Discrete Inputs03(03H)Read Holding Registers04(04H)Read Input Registers06(06H)Write Single Register16(10H)Write Multiple Registers\n\n****\u6709\u6548\u9519\u8bef\u4ee3\u7801\u8868\uff1a****\n\n\u9519\u8bef\u4ee3\u7801\u63cf\u8ff0\u5b9a\u4e4901 (01H)\u4e0d\u5408\u6cd5\u6307\u4ee4\u63a5\u6536\u7684\u547d\u4ee4\u4e3a\u6240\u5b9a\u4e49\u7684\u6709\u6548\u547d\u4ee4\u4e4b\u591602 (02H)\u4e0d\u5408\u6cd5\u6570\u636e\u5730\u5740\u5bfb\u5740\u5730\u5740\u8d85\u51fa\u5b9a\u4e49\u8303\u56f403 (03H)\u4e0d\u5408\u6cd5\u6570\u636e\u6570\u636e\u503c\u8d85\u51fa\u89c4\u5b9a\u8303\u56f404 (04H)\u6570\u636e\u5199\u4e0d\u6210\u529f\u4fee\u6539\u6570\u636e\u6ca1\u6709\u6210\u529f\n\n** Holding Register\u578b\u6570\u636e\u8868\uff1a **\n\n\u63cf\u8ff0\u5730\u5740\u8bfb\u5199\u7c7b\u578b\u5907\u6ce8\u7528\u6237\u53c2\u6570\u5b9a\u4e49\u8bbe\u5b9a\u5f00\u5173\u673a0001 0=\u5173\u673a\n\n1=\u5f00\u673a\n\n\u8bbe\u5b9a\u6a21\u5f0f0002R\/W0x01=\u5236\u51b7\n\n0x03=\u901a\u98ce\n\n0x04=\u5236\u70ed\n\n0x05=\u81ea\u52a8\n\n\u81ea\u52a8\u6a21\u5f0f\u65f6\uff0c\u9ad8\u5b57\u8282\u5185\u5bb9\u53cd\u9988\u5b9e\u9645\u8fd0\u884c\u7684\u6a21\u5f0f\n\n\u8bbe\u5b9a\u6e29\u5ea60003R\/W\u8bbe\u5b9a\u6e29\u5ea6\u4e0b\u9650~\u8bbe\u5b9a\u6e29\u5ea6\u4e0a\u9650\n\n\u5b9e\u9645\u503c*10\n\n\u8bbe\u5b9a\u98ce\u901f0004R\/W0x01=1\u6863\n\n0x02=2\u6863\n\n0x03=3\u6863\n\n0x04=4\u6863\n\n0x05=5\u6863\n\n0x06=\u81ea\u52a8\n\n\u7ebf\u63a7\u6e29\u5ea60005R\u7981\u6b62\u5199\u5165\u6570\u636e\u98ce\u673a\u53d7\u63a70006R\/W1\u65f6\u98ce\u673a\u8ddf\u968f\u538b\u7f29\u673a\u4e00\u8d77\u542f\u505c\u534e\u6c0f\u8bbe\u5b9a\u6e29\u5ea60021R\/W\u5b9e\u9645\u503c    \u7cfb\u7edf\u53c2\u6570\u5b9a\u4e49\u5236\u51b7\u6c34\u6e29\u4fdd\u62a4\u503c\u5236\u70ed\u6c34\u6e29\u4fdd\u62a4\u503c1000R\/W\u5b9e\u9645\u503c*10\u683c\u5f0f\u84b8\u53d1\u5668\u9ad8\u6e29\u4fdd\u62a4\u503c1001R\/W\u5b9e\u9645\u503c*10\u683c\u5f0f\u8fc7\u6d41\/\u7535\u538b\u4fdd\u62a4\u503c1002R\/W\u5b9e\u9645\u503c*10\u683c\u5f0f1\u6863\u7535\u538b1003R\/W\u5b9e\u9645\u503c2\u6863\u7535\u538b1004R\/W\u5b9e\u9645\u503c3\u6863\u7535\u538b1005R\/W\u5b9e\u9645\u503c4\u6863\u7535\u538b1006R\/W\u5b9e\u9645\u503c5\u6863\u7535\u538b1007R\/W\u5b9e\u9645\u503c\u98ce\u901f\u9009\u62e91008R\/W\u5b9e\u9645\u503c\u673a\u7ec4\u5730\u57401009R\/W1,3,5\u7ec4\u7f51\u5361\u6e29\u5ea6\u683c\u5f0f\u9009\u62e91010R\/W0~31 1011R\/W0=PC\u673a\u683c\u5f0f\uff1b1=\u7ebf\u63a7\u5668\u683c\u5f0f\uff0c\u9ed8\u8ba40\n\n**Input Register\u578b\u6570\u636e\u8868\uff1a**\n\n\u63cf\u8ff0\u5730\u5740\u8bfb\u5199\u7c7b\u578b\u5907\u6ce8\u62e8\u7801\u72b6\u60010001R DI\u72b6\u60010002R \u56de\u98ce\u6e29\u5ea60003R\u5b9e\u9645\u503c*10\u683c\u5f0f\u5185\u76d8\u6e29\u5ea60004R\u5b9e\u9645\u503c*10\u683c\u5f0f\u5faa\u73af\u6c34\u6e29\u5ea60005R\u5b9e\u9645\u503c*10\u683c\u5f0fAI4\u6e29\u5ea60006R\u5b9e\u9645\u503c*10\u683c\u5f0f\u538b\u7f29\u673a\u7535\u6d410007R*10\u683c\u5f0fDO\u8f93\u51fa\u6807\u5fd70008R \u6545\u969c\u5b57\u828210009R \u6545\u969c\u5b57\u828220010R \u534e\u6c0f\u56de\u98ce\u6e29\u5ea60021R\u5b9e\u9645\u503c\u534e\u6c0f\u5185\u76d8\u6e29\u5ea60022R\u5b9e\u9645\u503c\u534e\u6c0f\u5faa\u73af\u6c34\u6e29\u5ea60023R\u5b9e\u9645\u503c\u534e\u6c0fAI4\u6e29\u5ea60024R\u5b9e\u9645\u503c\n\n**Discrete\u578b\u6570\u636e\u8868\uff1a **\n\n\u63cf\u8ff0\u5730\u5740\u8bfb\u5199\u7c7b\u578b\u5907\u6ce8E1 \u56de\u98ce\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00001RE1:Return air temperature sensor failureE2 \u5185\u76d8\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00002RE2: Evaporator temperature sensor failureE3 \u6d77\u6c34\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00003RE3: Condenser temperature sensor failureE4 \u5185\u76d8\u8fc7\u70ed00004RE4: Evaporator overheating protectionE5 \u51b7\u5a92\u4e0d\u8db300005RE5: Insufficient refrigerantE6 \u9a71\u52a8\u6545\u969c00006RE6: Frequency conversion module failureE7 \u4f4e\u538b\u4f20\u611f\u5668\u6545\u969c00007RE7: Low pressure sensor failureE8 \u9ad8\u538b\u4fdd\u62a400008RE8: High voltage protectionE9 \u5185\u76d8\u7ed3\u971c00009RE9: Evaporator frostingE10 \u5faa\u73af\u6c34\u6e29\u5ea6\u4fdd\u62a400010RE10: Condenser temperature protectionE11  \u4f4e\u538b\u4fdd\u62a400011RE11: Low voltage protectionE12  \u56de\u6c14\u4f20\u611f\u5668\u6545\u969c00012RE12: Low pressure temperature sensor failureE13  IPM \u8fc7\u70ed\u4fdd\u62a4\u505c\u673a00013RE13: IPM overheat protectionE14  \u9a71\u52a8\u4e0e\u4e3b\u677f\u901a\u8baf\u6545\u969c00014RE14: Communication failure between frequency conversion module and main boardE15  \u4e0e\u7ebf\u63a7\u901a\u8baf\u6545\u969c00015RE15: Mainboard display communication failure\u9884\u755900016R DI1\u72b6\u600100017R DI2\u72b6\u600100018R DI3\u72b6\u600100019R DI4\u72b6\u600100020R DI5\u72b6\u600100021R DI6\u72b6\u600100022R \u538b\u7f29\u673a\u72b6\u600100023R \u7535\u52a0\u70ed\u72b6\u600100024R \u56db\u901a\u9600\u72b6\u600100025R \u6c34\u6cf5\u72b6\u600100026R \u9884\u755900027R \u9ad8\u901f\u98ce\u72b6\u600100028R \u4e2d\u901f\u98ce\u72b6\u600100029R \u4f4e\u901f\u98ce\u72b6\u600100030R \n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230903121704582.png?x-oss-process=image\/resize,m_lfit,w_800,h_387)\n\n****485\u901a\u8baf\u8fde\u63a5\u65f6,\u8bf7\u5c06\u7a7a\u8c03\u673a\u5185\u90e8\u53c2\u6570db\u5730\u5740\u4fee\u6539\u4e3a2\u4ee5\u4e0a\uff08\u6ce8\u610f\uff09\u4e0d\u80fd\u4e3a0\u62161****\n\n****\u5f00\u673a\u6570\u636e********: 01 06 00 00 00 01 48 0A****\n\n****\u5173\u673a\u6570\u636e********: 01 06 00 00 00 00 89 CA****\n\n****\u7b2c\u4e00\u4f4d01\u4e3a\u5730\u5740\u7801.****\n\n****\u5185\u90e8\u53c2\u6570\u8bbe\u7f6e\u64cd\u4f5c********:****\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230903121733964.png)\n\n- \u8fd0\u884c\u53c2\u6570\u8c03\u6574\n\n\u540c\u65f6\u6309\u4f4f****\u3008********\u901a\u98ce********\u3009****\u548c****\u3008\u6a21\u5f0f\u3009****\u952e\uff0c\u5e76\u6301\u7eed5\u79d2\u5de6\u53f3\uff0c\u7cfb\u7edf\u8fdb\u5165\u8fd0\u884c\u53c2\u6570\u8c03\u6574\u6a21\u5f0f\u3002\n\n\u8fdb\u5165\u8be5\u6a21\u5f0f\uff0c\u9996\u5148\u8981\u6c42\u8f93\u5165\u8fdb\u5165\u5bc6\u7801\uff0cSET\u548cERR\u663e\u793a\u533a\u5c06\u663e\u793a----\u5b57\u6837\uff0c\u6b64\u65f6\u53ef\u901a\u8fc7\u3008****\u6e29\u5ea6+\/-\u3009****\u952e\u8f93\u5165\u5bc6\u7801\u503c\uff0c\u901a\u8fc7****\u3008\u5f00\/\u5173\u3009****\u952e\u6539\u53d8\u5bc6\u7801\u7684\u4f4d\u6570\uff0c\u5171\u6709\u56db\u4f4d\u5bc6\u7801\u3002\n\n\u4fee\u6539\u4e3b\u677f\u53c2\u6570\u7684\u5bc6\u7801\u4e3a8699\uff0c\u5bc6\u7801\u8f93\u5165\u5b8c\u6bd5\u540e\uff0c\u6309****\u3008\u6a21\u5f0f\u3009****\u952e\u786e\u8ba4\uff0c\u5982\u5bc6\u7801\u6b63\u786e\u5219\u53ef\u8fdb\u5165\u4e0b\u4e00\u6b65\uff0c\u5982\u9519\u8bef\uff0c\u5219\u8981\u6c42\u91cd\u65b0\u8f93\u5165\uff0c\u8fde\u7eed\u4e09\u6b21\u8f93\u5165\u9519\u8bef\uff0c\u81ea\u52a8\u9000\u51fa\u6b64\u6a21\u5f0f\u3002\n\n\u5bc6\u7801\u8f93\u5165\u6b63\u786e\u540e\uff0c\u7ebf\u63a7\u5668\u5c06\u5148\u4ece\u4e3b\u677f\u8c03\u53d6\u53c2\u6570\u539f\u59cb\u503c\uff0c\n\n\u663e\u793a\u539f\u59cb\u53c2\u6570\u503c\uff0cSET\u663e\u793a\u533a\u5c06\u663e\u793a\u53c2\u6570\u9879, EER\u663e\u793a\u533a\u5c06\u663e\u793a\u53c2\u6570\u503c\u3002\u6b64\u65f6\u53ef\u901a\u8fc7****\u3008\u6e29\u5ea6+\/-\u3009****\u952e\u8c03\u6574\u53c2\u6570\u503c\uff0c\u901a\u8fc7****\u3008\u6a21\u5f0f\u3009****\u952e\u6539\u53d8\u53c2\u6570\u9879\uff0c\n\n\u53c2\u6570\u8c03\u6574\u5b8c\u6bd5\u540e\u540c\u65f6\u6309\u4f4f****\u3008\u6a21\u5f0f\u3009****\u548c****\u3008********\u901a\u98ce********\u3009****\u952e\u5c06\u9000\u51fa\u8fd0\u884c\u53c2\u6570\u8c03\u6574\u6a21\u5f0f\uff0c\u5e76\u5c06\u4fee\u6539\u540e\u7684\u53c2\u6570\u4fdd\u5b58\u3002\n\n\u4fee\u6539\u4e3b\u677f\u53c2\u6570\u5bf9\u7167\u8868\uff1a\n\n\u53c2\u6570\u9879\u63cf\u8ff0\u5355\u4f4d\u6700\u5c0f\u503c\u6700\u5927\u503c\u9ed8\u8ba4\u503c\u5907\u6ce8D1\u5236\u51b7\u6a21\u5f0f\u5faa\u73af\u6c34\u4fdd\u62a4\u6e29\u5ea6\u210302015 D2\u5236\u70ed\u6a21\u5f0f\u5faa\u73af\u6c34\u4fdd\u62a4\u6e29\u5ea6\u2103-10151 D3\u5236\u70ed\u6a21\u5f0f\u5185\u76d8\u9ad8\u6e29\u4fdd\u62a4\u2103558565\u9632\u538b\u7f29\u673a\u8fc7\u8f7dD4\u538b\u7f29\u673a\u5927\u7535\u6d41\u4fdd\u62a4A105030\u538b\u7f29\u673a\u7535\u6d41\u4fdd\u62a4D5\u98ce\u673a\u8f6c\u901f1V109945\u53ef\u63a7\u7845\u63a7\u5236\u98ce\u673a\u8f6c\u901fD6\u98ce\u673a\u8f6c\u901f2V109955D7\u98ce\u673a\u8f6c\u901f3V109965D8\u98ce\u673a\u8f6c\u901f4V109975D9\u98ce\u673a\u8f6c\u901f5V109999DA\u98ce\u673a\u6863\u6570\u9009\u62e9 1\uff0c3\uff0c55 DB\u5730\u5740\u7801   11,\u4e3a\u53cc\u7ebf\u63a7\uff0c2\u4ee5\u4e0a\u4e3a\u8054\u7f51\u63a7\u5236\n\n****16\u901a\u8baf\u6570\u636e\uff1a****\n\n\u8bbe\u7f6e\u5f00\u673a\uff1a01,06,00,00,00,01,48,0A\n\n\u8bbe\u7f6e\u5173\u673a\uff1a01,06,00,00,00,00,89.CA\n\n\u8bbe\u7f6e\u5236\u51b7\u6a21\u5f0f\uff1a01,06,00,01,00,01,19,CA\n\n\u8bbe\u7f6e\u901a\u98ce\u6a21\u5f0f\uff1a01,06,00,01,00,03,98,0B\n\n\u8bbe\u7f6e\u5236\u70ed\u6a21\u5f0f\uff1a01,06,00,01,00,04,D9,C9\n\n\u8bbe\u7f6e\u6e29\u5ea616\u5ea6\uff1a 01,06,00,02,00,A0,28,72\n\n\u8bbe\u7f6e\u6e29\u5ea630\u5ea6\uff1a 01,06,00,02,01,2C,28,47\n\n\u8bbe\u7f6e1\u6321\u98ce\u901f\uff1a 01,06,00,03,00,01,B8,0A\n\n\u8bbe\u7f6e2\u6321\u98ce\u901f\uff1a 01,06,00,03,00,02,F8,0B\n\n\u8bbe\u7f6e3\u6321\u98ce\u901f\uff1a 01,06,00,03,00,03,39,CB\n\n\u8bbe\u7f6e4\u6321\u98ce\u901f\uff1a 01,06,00,03,00,04,78,09\n\n\u8bbe\u7f6e5\u6321\u98ce\u901f\uff1a 01,06,00,03,00,05,B9,C9\n\n\u8bbe\u7f6e\u81ea\u52a8\u6321\u98ce\u901f\uff1a01,06,00,03,00,06,F9,C8\n\n\u67e5\u8be2\u8bbe\u7f6e\u72b6\u6001\uff1a01,03,00,00,00,04,44,09\n\n\u4e3b\u677f\u56de\u5e94\u683c\u5f0f\uff1a01,03,08,\u5f00\u5173\u673a\u9ad8\u5b57\u8282\uff0c\u5f00\u5173\u673a\u4f4e\u5b57\u8282\uff0c\u6a21\u5f0f\u9ad8\u5b57\u8282\uff0c\u6a21\u5f0f\u4f4e\u5b57\u8282\uff0c\u6e29\u5ea6\u9ad8\u5b57\u8282\uff0c\u6e29\u5ea6\n\n\u4f4e\u5b57\u8282\uff0c\u98ce\u901f\u9ad8\u5b57\u8282\uff0c\u98ce\u901f\u4f4e\u5b57\u8282\uff0cCRC\u6821\u9a8c\u9ad8\u5b57\u8282\uff0cCRC\u6821\u9a8c\u4f4e\u5b57\u8282\n\n\u5ba4\u5185\u6e29\u5ea6\u8bfb\u53d6\uff1a01,04,00,02,00,01,90,0A\n\n\u4e3b\u677f\u56de\u5e94\u683c\u5f0f\uff1a01,04,02,\u5f53\u524d\u6e29\u5ea6\u9ad8\u5b57\u8282\uff0c\u5f53\u524d\u6e29\u5ea6\u4f4e\u5b57\u8282\uff0cCRC\u6821\u9a8c\u9ad8\u5b57\u8282\uff0cCRC\u6821\u9a8c\u4f4e\u5b57\u8282\n\n\u4ee5\u4e0a\u6e29\u5ea6\u90fd\u662f\u6309\u7167\u5b9e\u9645\u6e29\u5ea6*10\u7684\u683c\u5f0f\u4f20\u9001\u7684\uff0c\u4e3a16\u4f4d\u6709\u7b26\u53f7\u6570\u3002\n\n\u6bd4\u5982\uff1a300=30\u5ea6\uff0c-300=-30\u5ea6\n\n\u63cf\u8ff0\u5730\u5740  E1 \u56de\u98ce\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00001 E1:Return air temperature sensor failureE2 \u5185\u76d8\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00002 E2: Evaporator temperature sensor failureE3 \u6d77\u6c34\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c00003 E3: Condenser temperature sensor failureE4 \u5185\u76d8\u8fc7\u70ed00004 E4: Evaporator overheating protectionE5 \u51b7\u5a92\u4e0d\u8db300005 E5: Insufficient refrigerantE6 \u9a71\u52a8\u6545\u969c00006 E6: Frequency conversion module failureE7 \u4f4e\u538b\u4f20\u611f\u5668\u6545\u969c00007 E7: Low pressure sensor failureE8 \u9ad8\u538b\u4fdd\u62a400008 E8: High voltage protectionE9 \u5185\u76d8\u7ed3\u971c00009 E9: Evaporator frostingE10 \u5faa\u73af\u6c34\u6e29\u5ea6\u4fdd\u62a400010 E10: Condenser temperature protectionE11  \u4f4e\u538b\u4fdd\u62a400011 E11: Low voltage protectionE12  \u56de\u6c14\u4f20\u611f\u5668\u6545\u969c00012 E12: Low pressure temperature sensor failureE13  IPM \u8fc7\u70ed\u4fdd\u62a4\u505c\u673a00013 E13: IPM overheat protectionE14  \u9a71\u52a8\u4e0e\u4e3b\u677f\u901a\u8baf\u6545\u969c00014 E14: Communication failure between frequency conversion module and main boardE15  \u4e0e\u7ebf\u63a7\u901a\u8baf\u6545\u969c00015 E15: Mainboard display communication failure\n\n\u9762\u677f\u5de5\u7a0b\u5bc6\u7801\uff1a8699\n\n---\n*modbus.cn*\n"