{"id":26565,"date":"2024-01-15T22:45:07","date_gmt":"2024-01-15T14:45:07","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=26565"},"modified":"2026-06-30T23:42:45","modified_gmt":"2026-06-30T15:42:45","slug":"hua-er-si-bei-jing-yin-yue-rs485-chuan-xing-kong-zhi-tong-xin-xie-yi","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/26565.html","title":{"rendered":"\u534e\u5c14\u601d\u80cc\u666f\u97f3\u4e50RS485\u4e32\u884c\u63a7\u5236\u901a\u4fe1\u534f\u8bae"},"content":{"rendered":"
<\/figure>\n\n\n\n

<\/a>\u4e00\u3001\u7269\u7406\u5c42\u534f\u8bae<\/strong><\/strong><\/h1>\n\n\n\n

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<\/a>\u4e09\u3001<\/strong>\u6570\u636e\u5305\u8be6\u89e3<\/strong><\/strong><\/h1>\n\n\n\n

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0x02<\/td>\u578b\u53f7<\/td>\u7248\u672c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/a>2.\u6ce2\u7279\u7387\u67e5\u8be2<\/strong><\/strong><\/h3>\n\n\n\n

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0x0d<\/td>3-7bit\u83dc\u5355\u4f4d\u7f6e<\/a>1-2bit\u97f3\u6e90\u72b6\u6001<\/a>0bit <\/td>2-7bit\u5f53\u524d\u97f3\u91cf1bit\u5f00\u5173\u673a\u72b6\u6001<\/a>0bit\u9759\u97f3\u72b6\u6001<\/a><\/td>4-7bit:\u64ad\u653e\u6a21\u5f0f<\/a>0-3bit:\u97f3\u6548\u6a21\u5f0f<\/a><\/td>2-7bit:\u64ad\u653e\u8d44\u6e90<\/a>0-1bit:\u5f53\u524d\u64ad\u653e\u72b6\u6001<\/td>\u6b63\u5728\u64ad\u653e\u7684\u6587\u4ef6\u5e8f\u53f7 <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/a>2.\u97f3\u4e50\u63a7\u5236\u6307\u4ee4<\/a><\/strong><\/strong><\/h2>\n\n\n\n

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<\/a>FA 00 01 02 10 02 15 FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 02 01 0A FE<\/p>\n\n\n\n

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FA 00 01 02 10 03 16 FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 03 02 0C FE  <\/p>\n\n\n\n

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FA 00 01 02 10 05 18 FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 05 03 0F FE<\/p>\n\n\n\n

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<\/a>FA 00 01 02 10 06 19 FE<\/a> \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 06 03 10 FE<\/p>\n\n\n\n

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FA 00 01 02 10 07 1A FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 07 07 15 FE<\/p>\n\n\n\n

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FA 00 01 02 10 08 1b FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 08 01 10 FE<\/p>\n\n\n\n

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<\/a>FA 00 01 02 10 09 1C FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 09 00 10 FE<\/p>\n\n\n\n

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FA 00 01 02 10 0A 1D FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 0A 00 11 FE<\/p>\n\n\n\n

FA 00 01 02 10 0A 1D FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 03 03 0A 01 12 FE<\/p>\n\n\n\n

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FA 00 01 02 10 0B 1E FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 0C 03 0B 10 07 00<\/p>\n\n\n\n

05 ED 8A B8 E6 B1 BD BA FE<\/p>\n\n\n\n

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FA 00 01 02 10 0C 1F FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 12 03 0C 10 07 00<\/p>\n\n\n\n

03 E9 A5 BF E7 8B BC E4 BC A0 E8 AF B4 42 FE<\/p>\n\n\n\n

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FC 00 01 03 03 0D 01 15 FE\uff08\u5916\u90e8\uff09<\/p>\n\n\n\n

FC 00 01 03 03 0D 03 17 FE\uff08\u84dd\u7259\uff09<\/p>\n\n\n\n

<\/a>2.<\/strong>\u97f3\u91cf\u8bbe\u7f6e<\/strong><\/strong><\/h3>\n\n\n\n

FA 00 01 02 11 01 15 FE\uff08\u8bbe\u7f6e\u97f3\u91cf\u4e3a01\uff09<\/p>\n\n\n\n

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FC 00 01 02 12 01 16 FE<\/p>\n\n\n\n

<\/a>3.<\/strong>\u67e5\u5bfb\u5f00\u5173\u673a\u72b6\u6001<\/strong><\/strong><\/h3>\n\n\n\n

<\/a>FA 00 01 01 13 15 FE<\/p>\n\n\n\n

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FC 00 01 02 14 00 17 FE \u5f00\u673a<\/p>\n\n\n\n

FC 00 01 02 14 01 18 FE \u5173\u673a<\/p>\n\n\n\n

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FA 00 01 01 15 17 FE<\/p>\n\n\n\n

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FC 00 01 02 16 08 21 FE \uff08\u5f53\u524d\u97f3\u91cf\u4e3a08\uff09<\/p>\n\n\n\n

<\/a>5.\u67e5\u5bfb\u9759\u97f3\u72b6\u6001<\/strong><\/strong><\/h3>\n\n\n\n

<\/a>FA 00 01 01 17 19 FE<\/p>\n\n\n\n

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FC 00 01 02 18 00 1B FE \u9759\u97f3\u5f00<\/p>\n\n\n\n

FC 00 01 02 18 01 1C FE \u9759\u97f3\u5173<\/p>\n\n\n\n

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FA 00 01 02 19 00 1C FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 02 18 00 1B FE<\/p>\n\n\n\n

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FA 00 01 02 19 01 1D FE \u5f97\u5230\u53cd\u9988\uff1aFC 00 01 02 18 01 1C FE<\/p>\n\n\n\n

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<\/a>FA 00 01 01 8B 8D FE<\/p>\n\n\n\n

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0x8c<\/td>\u4e2a\u6570(\u5168\u90e8-\u97f3\u4e50)<\/td>\u2026<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6ce8\uff1a\u53c2\u6570\u670924\u4e2a\uff0c\u67e5\u770b\u5bf9\u5e94\u7684\u64ad\u653e\u8d44\u6e90<\/u><\/a> \uff0d \u5168\u90e8-\u97f3\u4e50\u3001\u5185\u5b58-\u97f3\u4e50\u3001SD\u5361-\u97f3\u4e50\u2026\u2026<\/p>\n\n\n\n

<\/a>8.\u67e5\u5bfb\u97f3\u4e50\u8d44\u6e90\u6570\u76ee<\/strong><\/strong><\/h3>\n\n\n\n

<\/a>FA 00 01 01 4A 4C FE<\/p>\n\n\n\n

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0x4A<\/td>\u4e2a\u6570(\u5168\u90e8-\u97f3\u4e50)<\/td>\u2026<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6ce8\uff1a\u53c2\u6570\u670930+N\u4e2a\u53c2\u6570\uff0860+2NByte\uff09\uff0c\u67e5\u770b\u5bf9\u5e94\u7684\u64ad\u653e\u8d44\u6e90<\/a> \uff0d \u5168\u90e8-\u97f3\u4e50\u3001\u5185\u5b58-\u97f3\u4e50\u3001SD\u5361-\u97f3\u4e50\u2026\u2026<\/p>\n\n\n\n

<\/a>9.\u67e5\u5bfb\u97f3\u4e50\u64ad\u653e\u5668\u7684\u72b6\u6001\uff08\u65e7\uff09<\/a><\/strong><\/strong><\/h3>\n\n\n\n

FA 00 01 01 80 82 FE<\/p>\n\n\n\n

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0x81<\/td>4-7bit:\u64ad\u653e\u6a21\u5f0f0-3bit:\u97f3\u6548\u6a21\u5f0f<\/td>2-7bit:\u64ad\u653e\u8d44\u6e900-1bit:\u5f53\u524d\u64ad\u653e\u72b6\u6001<\/td>\u6b63\u5728\u64ad\u653e\u7684\u6587\u4ef6\u5e8f\u53f7 <\/td>\u6b4c\u66f2\u540d\u5b57<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/a>10.\u67e5\u5bfb\u97f3\u4e50\u64ad\u653e\u5668\u7684\u72b6\u6001<\/strong><\/strong><\/h3>\n\n\n\n

FA 00 01 01 75 77 FE<\/p>\n\n\n\n

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0x75<\/td>4-7bit:\u64ad\u653e\u6a21\u5f0f0-3bit:\u97f3\u6548\u6a21\u5f0f<\/td>2-7bit:\u64ad\u653e\u8d44\u6e900-1bit:\u5f53\u524d\u64ad\u653e\u72b6\u6001<\/td>\u6b63\u5728\u64ad\u653e\u7684\u6587\u4ef6\u5e8f\u53f7 <\/td>\u6b4c\u66f2\u540d\u5b57<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6ce8\uff1a<\/p>\n\n\n\n

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4-7bit<\/td> <\/td>\u64ad\u653e\u6a21\u5f0f\uff1a<\/a><\/td><\/tr>
0x00<\/td>\u987a\u5e8f\u64ad\u653e\uff08H6\uff09<\/td><\/tr>
0x01<\/td>\u5168\u90e8\u5faa\u73af<\/td><\/tr>
0x02<\/td>\u5355\u66f2\u5faa\u73af<\/td><\/tr>
0x03<\/td>\u968f\u673a\u64ad\u653e<\/td><\/tr>
0-3bit<\/td> <\/td>\u73af\u5883\u97f3\u6548\uff1a<\/a><\/td><\/tr>
0x00<\/td>\u666e\u901a<\/td><\/tr>
0x01<\/td>\u6447\u6eda<\/td><\/tr>
0x02<\/td>\u6d41\u884c<\/td><\/tr>
0x03<\/td>\u821e\u66f2<\/td><\/tr>
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0x05<\/td>\u53e4\u5178<\/td><\/tr>
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0x07<\/td>\u4eba\u58f0<\/td><\/tr>
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0x09<\/td>\u67d4\u548c<\/td><\/tr>
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2-7bit<\/td> <\/td>\u64ad\u653e\u8d44\u6e90\uff1a<\/a><\/td><\/tr>
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0-1bit<\/td> <\/td>\u64ad\u653e\u72b6\u6001\uff1a<\/a><\/td><\/tr>
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<\/a>13.\u67e5\u5bfb\u97f3\u4e50\u64ad\u653e\u5668\u6b63\u64ad\u653e\u7684\u97f3\u4e50\u8be6\u7ec6\u4fe1\u606f<\/strong><\/strong><\/h3>\n\n\n\n

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<\/a>14.\u64ad\u653e\u6a21\u5f0f\u8bbe\u7f6e<\/a><\/strong><\/strong><\/h3>\n\n\n\n

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<\/a>17.\u67e5\u770b\u623f\u95f4\u540d\u548c\u623f\u95f4\u5e8f\u53f7<\/strong><\/strong><\/h3>\n\n\n\n

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FC 00 01 03 6A 02 00 70 FE<\/p>\n\n\n\n

<\/a>19.\u67e5\u770b\u97f3\u6e90\u6570<\/strong><\/strong><\/h3>\n\n\n\n

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<\/a>20.\u8bbe\u7f6e\u97f3\u6e90<\/strong><\/strong><\/h3>\n\n\n\n

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