"# RS485\u5de5\u4e1a\u65e0\u7ebf\u9065\u63a7\u5668\u4ea7\u54c1\u8bf4\u660e\u4e66\n\n> 2025-06-02 | 2026-06-25\n> https:\/\/www.modbus.cn\/en\/31344.html\n\n**\u4ea7\u54c1\u8bf4\u660e\u4e66**\n\n---\n\n### **485\u5de5\u4e1a\u65e0\u7ebf\u9065\u63a7\u5668\u7cfb\u7edf**\n\n**\u4e13\u4e1a\u65e0\u7ebf\u63a7\u5236\u89e3\u51b3\u65b9\u6848\uff0c\u652f\u6301ModBus\u901a\u8baf\u4e0e\u5b9a\u5236\u5316\u529f\u80fd**\n\n### **\u4e00\u3001\u7cfb\u7edf\u7ec4\u6210**\n\n\u7ec4\u4ef6\u7c7b\u578b\u4e0e\u529f\u80fd\u8bf4\u660e**\u53d1\u5c04\u5668**\u624b\u6301\u5f0f\uff08\u591a\u6309\u952e\uff09\u6216\u80cc\u8d1f\u5f0f\uff08\u5e26\u6447\u6746\u8c03\u901f\uff09**\u63a5\u6536\u5668**\u578b\u53f7\uff1a**485\u901a\u8baf\u578b**\n- \u8f93\u51fa\u65b9\u5f0f\uff1a\u7ee7\u7535\u5668\u8f93\u51fa\uff08\u603b\u505c\u4fe1\u53f7\uff09 + **ModBus-RTU RS485**\n- \u5b89\u88c5\u65b9\u5f0f\uff1a\u67dc\u5185\u5bfc\u8f68\u5b89\u88c5\n- \u5c3a\u5bf8\uff1a115mm \u00d7 90mm \u00d7 40mm\n- \u7535\u6e90\uff1aAC\/DC 24V\uff08\u4e0d\u533a\u5206\u6b63\u8d1f\u6781\uff09**\u5929\u7ebf**\u5916\u63a5\u5ef6\u957f\u5929\u7ebf\uff0c\u589e\u5f3a\u4fe1\u53f7\u7a33\u5b9a\u6027**\u914d\u7f6e\u5b58\u50a8**\u4e13\u7528**E\u5361**\uff08\u5b58\u50a8\u5e8f\u5217\u53f7\u3001\u4fe1\u9053\u3001\u6309\u952e\u529f\u80fd\u7b49\u914d\u7f6e\uff09\n\n### **\u4e8c\u3001\u6838\u5fc3\u529f\u80fd**\n\n- **\u901a\u8baf\u534f\u8bae**\n\n- \u652f\u6301 **ModBus-RTU RS485** \u901a\u8baf\uff0c\u517c\u5bb9PLC\/\u4e0a\u4f4d\u673a\u3002\n\n- **\u6ce2\u7279\u7387**\uff1a9600\/38400\/57600\/115200bps\uff08\u901a\u8fc7\u62e8\u7801\u5f00\u5173\u8bbe\u7f6e\uff09\u3002\n\n- **\u4ece\u7ad9\u5730\u5740**\uff1a1~4\uff08\u901a\u8fc7\u62e8\u7801\u5f00\u5173\u8bbe\u7f6e\uff09\u3002\n\n- **\u62e8\u7801\u5f00\u5173\u8bbe\u7f6e**\uff08\u63a5\u6536\u5668\u5185\u90e8\u7ea2\u82724\u4f4d\u5f00\u5173\uff09 \u5f00\u5173\u4f4d \u529f\u80fd \u8bbe\u7f6e\u8bf4\u660e **1+2** \u6ce2\u7279\u7387 ON+ON:9600 \u2192 ON+OFF:57600\nOFF+ON:38400 \u2192 OFF+OFF:115200 **3+4** \u901a\u8baf\u5730\u5740 ON+ON:1 \u2192 ON+OFF:2\nOFF+ON:3 \u2192 OFF+OFF:4\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602164142500.png)\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602164128413.png)\n\n- **\u6309\u952e\u529f\u80fd\u914d\u7f6e**\n\n- \u6700\u591a\u652f\u6301**24\u4e2a\u6309\u952e**\uff0c\u529f\u80fd\u901a\u8fc7E\u5361\u5b58\u50a8\uff08\u5982\u542f\u505c\u3001\u8c03\u901f\u3001\u81ea\u5b9a\u4e49\u903b\u8f91\uff09\u3002\n\n- \u652f\u6301**\u8282\u80fd\u8bbe\u7f6e**\u3001\u5f00\u673a\u65b9\u5f0f\u3001\u505c\u673a\u65f6\u95f4\u7b49\u53c2\u6570\u914d\u7f6e\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602164412304.png)\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602164455829.png?x-oss-process=image\/resize,m_lfit,w_950,h_647)\n\n- **\u5b9a\u5236\u5316\u6269\u5c55**\n\u53ef\u63d0\u4f9b\u7279\u6b8a\u529f\u80fd\u5b9a\u5236\uff1a\n\u2705 \u8fde\u9501\u903b\u8f91 \u2705 \u6a21\u62df\u91cf\u63a7\u5236 \u2705 \u53cd\u9988\u663e\u793a\n\u2705 CAN\u901a\u8baf \u2705 TCP\u901a\u8baf \u2705 RS485\u6574\u5408\n\n### **\u4e09\u3001ModBus\u5bc4\u5b58\u5668\u6620\u5c04\u8868**\n\n**\u6570\u636e\u5730\u5740\u5b9a\u4e49**\uff08\u4ee5**12\u952e\u9065\u63a7\u5668**\u4e3a\u4f8b\uff09\uff1a\n\n- **\u8d77\u59cb\u5bc4\u5b58\u5668**\uff1a`4x0001`\uff08\u5b57\u6a21\u5f0f\uff09\u6216 `Byte0`\uff08\u5b57\u8282\u6a21\u5f0f\uff09\n\n- **\u6309\u952e\u72b6\u6001\u6620\u5c04\u5173\u7cfb**\uff1a\n\u6309\u952e\u529f\u80fd \u5b57\u6a21\u5f0f\u4f4d\u5730\u5740 \u5b57\u8282\u6a21\u5f0f\u4f4d\u5730\u5740\n\u6309\u952e1 `Word0.bit13` `Byte1.bit5`\n\u6309\u952e2 `Word0.bit12` `Byte1.bit4`\n\u2026 \u2026 \u2026\n\u6309\u952e16 `Word2.bit15` `Byte3.bit7` **\u5173\u952e\u8bf4\u660e**\uff1a\u6bcf\u4e2a\u5bc4\u5b58\u5668\uff08\u598240001\uff09\u5305\u542b**16\u4e2a\u4f4d**\uff08bit0~bit15\uff09\uff0c\u5bf9\u5e9416\u4e2a\u6309\u952e\u72b6\u6001\u3002**\u4f4d\u503c=1**\uff1a\u6309\u952e\u6309\u4e0b\uff1b**\u4f4d\u503c=0**\uff1a\u6309\u952e\u91ca\u653e\u3002**\u56db\u3001\u5feb\u901f\u4f7f\u7528\u6307\u5357** 1\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602163049106-scaled.png?x-oss-process=image\/resize,m_lfit,w_950,h_96)\n\n-  2. **PLC\u901a\u8baf\u793a\u4f8b****\u4fe1\u6377PLC\u6307\u4ee4**\uff1a\n`REGR K3 K0 K100 D100 K2`\n\uff08\u542b\u4e49\uff1a\u4ece\u7ad9\u5730\u57403\uff0c\u8bfb\u5bc4\u5b58\u566840001~40002\u5230D100~D101\uff09**\u897f\u95e8\u5b50PLC**\uff1a\u9700\u89e3\u6790`Byte0~Byte3`\u7684\u4f4d\u72b6\u6001\uff08\u53c2\u8003\u6620\u5c04\u8868\uff09\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602163706285.png)\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/06\/20250602163721119.png)\n\n- **\u4e94\u3001\u6280\u672f\u53c2\u6570** \u9879\u76ee \u53c2\u6570 \u5de5\u4f5c\u7535\u538b AC\/DC 24V \u00b110% \u65e0\u7ebf\u534f\u8bae LORA\/GFSK\/2.4G\/5G \u4fe1\u9053\u6570 255\u4e2a\u72ec\u7acb\u4fe1\u9053 \u5e8f\u5217\u53f7\u5bb9\u91cf 40\u4ebf\u7ec4\uff08\u9632\u5e72\u6270\uff09 \u9632\u62a4\u7b49\u7ea7 IP65\uff08\u5de5\u4e1a\u9632\u5c18\u9632\u6c34\uff09 **\u516d\u3001\u670d\u52a1\u652f\u6301****\u5b9a\u5236\u9700\u6c42**\uff1a\u63d0\u4f9b\u903b\u8f91\u63a7\u5236\u3001\u901a\u8baf\u534f\u8bae\u6574\u5408\u3001\u663e\u793a\u53cd\u9988\u7b49\u6df1\u5ea6\u5b9a\u5236\u3002**\u6280\u672f\u652f\u6301**\uff1a\u8054\u7cfb\u5382\u5546\u83b7\u53d6\u914d\u7f6e\u5de5\u5177\u53ca\u5bc4\u5b58\u5668\u5b8c\u6574\u5b9a\u4e49\u8868\u3002**\u63d0\u793a**\uff1a\u5b8c\u6574\u914d\u7f6e\u9700\u53c2\u8003\u968f\u673a\u7684**RMK-AB-16S\u6309\u952e\u5730\u5740\u5b9a\u4e49\u56fe**\uff08\u89c1\u8bf4\u660e\u4e66\u98755\uff09\u3002 \u672c\u8bf4\u660e\u7b80\u5316\u4e86\u6280\u672f\u7ec6\u8282\uff0c\u805a\u7126\u6838\u5fc3\u529f\u80fd\u4e0e\u64cd\u4f5c\u6d41\u7a0b\u3002\u5982\u9700\u5b8c\u6574\u5bc4\u5b58\u5668\u6620\u5c04\u8868\u6216\u5b9a\u5236\u65b9\u6848\uff0c\u5efa\u8bae\u8054\u7cfb\u745e\u83ab\u80af\u6280\u672f\u56e2\u961f\u83b7\u53d6\u4e13\u5c5e\u652f\u6301\u3002\n\n---\n*modbus.cn*\n"