{"id":31344,"date":"2025-06-02T16:48:38","date_gmt":"2025-06-02T08:48:38","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=31344"},"modified":"2026-06-25T22:35:45","modified_gmt":"2026-06-25T14:35:45","slug":"485-gong-ye-wu-xian-yao-kong-qi-shuo-ming-shu","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/31344.html","title":{"rendered":"RS485\u5de5\u4e1a\u65e0\u7ebf\u9065\u63a7\u5668\u4ea7\u54c1\u8bf4\u660e\u4e66"},"content":{"rendered":"

485\u5de5\u4e1a\u65e0\u7ebf\u9065\u63a7\u5668\u7cfb\u7edf<\/strong><\/h3>\n\n\n\n

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\u4e00\u3001\u7cfb\u7edf\u7ec4\u6210<\/strong><\/h3>\n\n\n\n
\u7ec4\u4ef6<\/th>\u7c7b\u578b\u4e0e\u529f\u80fd\u8bf4\u660e<\/th><\/tr><\/thead>
\u53d1\u5c04\u5668<\/strong><\/td>\u624b\u6301\u5f0f\uff08\u591a\u6309\u952e\uff09\u6216\u80cc\u8d1f\u5f0f\uff08\u5e26\u6447\u6746\u8c03\u901f\uff09<\/td><\/tr>
\u63a5\u6536\u5668<\/strong><\/td>\u578b\u53f7\uff1a485\u901a\u8baf\u578b<\/strong>
– \u8f93\u51fa\u65b9\u5f0f\uff1a\u7ee7\u7535\u5668\u8f93\u51fa\uff08\u603b\u505c\u4fe1\u53f7\uff09 + ModBus-RTU RS485<\/strong>
– \u5b89\u88c5\u65b9\u5f0f\uff1a\u67dc\u5185\u5bfc\u8f68\u5b89\u88c5
– \u5c3a\u5bf8\uff1a115mm \u00d7 90mm \u00d7 40mm
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\u5929\u7ebf<\/strong><\/td>\u5916\u63a5\u5ef6\u957f\u5929\u7ebf\uff0c\u589e\u5f3a\u4fe1\u53f7\u7a33\u5b9a\u6027<\/td><\/tr>
\u914d\u7f6e\u5b58\u50a8<\/strong><\/td>\u4e13\u7528E\u5361<\/strong>\uff08\u5b58\u50a8\u5e8f\u5217\u53f7\u3001\u4fe1\u9053\u3001\u6309\u952e\u529f\u80fd\u7b49\u914d\u7f6e\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4e8c\u3001\u6838\u5fc3\u529f\u80fd<\/strong><\/h3>\n\n\n\n
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  1. \u901a\u8baf\u534f\u8bae<\/strong><\/li>\n<\/ol>\n\n\n\n
      \n
    • \u652f\u6301 ModBus-RTU RS485<\/strong> \u901a\u8baf\uff0c\u517c\u5bb9PLC\/\u4e0a\u4f4d\u673a\u3002<\/li>\n\n\n\n
    • \u6ce2\u7279\u7387<\/strong>\uff1a9600\/38400\/57600\/115200bps\uff08\u901a\u8fc7\u62e8\u7801\u5f00\u5173\u8bbe\u7f6e\uff09\u3002<\/li>\n\n\n\n
    • \u4ece\u7ad9\u5730\u5740<\/strong>\uff1a1~4\uff08\u901a\u8fc7\u62e8\u7801\u5f00\u5173\u8bbe\u7f6e\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
        \n
      1. \u62e8\u7801\u5f00\u5173\u8bbe\u7f6e<\/strong>\uff08\u63a5\u6536\u5668\u5185\u90e8\u7ea2\u82724\u4f4d\u5f00\u5173\uff09 \u5f00\u5173\u4f4d \u529f\u80fd \u8bbe\u7f6e\u8bf4\u660e 1+2<\/strong> \u6ce2\u7279\u7387 ON+ON:9600 \u2192 ON+OFF:57600
        OFF+ON:38400 \u2192 OFF+OFF:115200 3+4<\/strong> \u901a\u8baf\u5730\u5740 ON+ON:1 \u2192 ON+OFF:2
        OFF+ON:3 \u2192 OFF+OFF:4<\/li>\n<\/ol>\n\n\n\n
        <\/figure>\n\n\n\n
        <\/figure>\n\n\n\n
          \n
        1. \u6309\u952e\u529f\u80fd\u914d\u7f6e<\/strong><\/li>\n<\/ol>\n\n\n\n
            \n
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          • \u652f\u6301\u8282\u80fd\u8bbe\u7f6e<\/strong>\u3001\u5f00\u673a\u65b9\u5f0f\u3001\u505c\u673a\u65f6\u95f4\u7b49\u53c2\u6570\u914d\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n
            <\/figure>\n\n\n\n
            <\/figure>\n\n\n\n
              \n
            1. \u5b9a\u5236\u5316\u6269\u5c55<\/strong>
              \u53ef\u63d0\u4f9b\u7279\u6b8a\u529f\u80fd\u5b9a\u5236\uff1a
              \u2705 \u8fde\u9501\u903b\u8f91 \u2705 \u6a21\u62df\u91cf\u63a7\u5236 \u2705 \u53cd\u9988\u663e\u793a
              \u2705 CAN\u901a\u8baf \u2705 TCP\u901a\u8baf \u2705 RS485\u6574\u5408<\/li>\n<\/ol>\n\n\n\n
              \n\n\n\n

              \u4e09\u3001ModBus\u5bc4\u5b58\u5668\u6620\u5c04\u8868<\/strong><\/h3>\n\n\n\n

              \u6570\u636e\u5730\u5740\u5b9a\u4e49<\/strong>\uff08\u4ee512\u952e\u9065\u63a7\u5668<\/strong>\u4e3a\u4f8b\uff09\uff1a<\/p>\n\n\n\n

                \n
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              • \u6309\u952e\u72b6\u6001\u6620\u5c04\u5173\u7cfb<\/strong>\uff1a
                \u6309\u952e\u529f\u80fd \u5b57\u6a21\u5f0f\u4f4d\u5730\u5740 \u5b57\u8282\u6a21\u5f0f\u4f4d\u5730\u5740
                \u6309\u952e1 Word0.bit13<\/code> Byte1.bit5<\/code>
                \u6309\u952e2 Word0.bit12<\/code> Byte1.bit4<\/code>
                \u2026 \u2026 \u2026
                \u6309\u952e16 Word2.bit15<\/code> Byte3.bit7<\/code> \u5173\u952e\u8bf4\u660e<\/strong>\uff1a
                • \u6bcf\u4e2a\u5bc4\u5b58\u5668\uff08\u598240001\uff09\u5305\u542b16\u4e2a\u4f4d<\/strong>\uff08bit0~bit15\uff09\uff0c\u5bf9\u5e9416\u4e2a\u6309\u952e\u72b6\u6001\u3002\u4f4d\u503c=1<\/strong>\uff1a\u6309\u952e\u6309\u4e0b\uff1b\u4f4d\u503c=0<\/strong>\uff1a\u6309\u952e\u91ca\u653e\u3002<\/li><\/ul>\u56db\u3001\u5feb\u901f\u4f7f\u7528\u6307\u5357<\/strong> 1\uff1a<\/li>\n<\/ul>\n\n\n\n
                  <\/figure>\n\n\n\n
                    \n
                  • 2. PLC\u901a\u8baf\u793a\u4f8b<\/strong>
                    • \u4fe1\u6377PLC\u6307\u4ee4<\/strong>\uff1a
                      REGR K3 K0 K100 D100 K2<\/code>
                      \uff08\u542b\u4e49\uff1a\u4ece\u7ad9\u5730\u57403\uff0c\u8bfb\u5bc4\u5b58\u566840001~40002\u5230D100~D101\uff09\u897f\u95e8\u5b50PLC<\/strong>\uff1a\u9700\u89e3\u6790Byte0~Byte3<\/code>\u7684\u4f4d\u72b6\u6001\uff08\u53c2\u8003\u6620\u5c04\u8868\uff09\u3002<\/li><\/ul><\/li>\n<\/ul>\n\n\n\n
                      <\/figure>\n\n\n\n
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                          <\/p>\n<\/span>","protected":false},"excerpt":{"rendered":"

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