"# modbus485\u63a5\u53e3\u8be6\u7ec6\u63a5\u7ebf\u65b9\u5f0f\n\n> 2023-02-11 | 2023-02-11\n> https:\/\/www.modbus.cn\/en\/wenda\/11695.html\n\n---\n\n\u4ee5\u4e0b\u662fModbus 485\u63a5\u53e3\u7684\u8be6\u7ec6\u63a5\u7ebf\u65b9\u5f0f\uff1a\n\n\r\n\n485\u901a\u4fe1\u6a21\u5757\u548c\u4e3b\u673a\u7684\u63a5\u7ebf\n\u901a\u4fe1\u6a21\u5757\u7684GND\u63a5\u4e3b\u673a\u7684GND\n\u901a\u4fe1\u6a21\u5757\u7684A+\u63a5\u4e3b\u673a\u7684TX\n\u901a\u4fe1\u6a21\u5757\u7684B-\u63a5\u4e3b\u673a\u7684RX\n485\u901a\u4fe1\u6a21\u5757\u548c\u4ece\u673a\u7684\u63a5\u7ebf\n\u901a\u4fe1\u6a21\u5757\u7684GND\u63a5\u4ece\u673a\u7684GND\n\u901a\u4fe1\u6a21\u5757\u7684A+\u63a5\u4ece\u673a\u7684B\n\u901a\u4fe1\u6a21\u5757\u7684B-\u63a5\u4ece\u673a\u7684A\n485\u901a\u4fe1\u6a21\u5757\u7684\u4f9b\u7535\n\u901a\u4fe1\u6a21\u5757\u7684VCC\u8fde\u63a5\u7535\u6e90\u7684\u6b63\u6781\n\u901a\u4fe1\u6a21\u5757\u7684GND\u8fde\u63a5\u7535\u6e90\u7684\u8d1f\u6781\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cModbus 485\u63a5\u53e3\u7684\u8fde\u63a5\u9700\u8981\u4f7f\u7528\u5c4f\u853d\u7535\u7f06\uff0c\u4ee5\u51cf\u5c0f\u7535\u78c1\u5e72\u6270\u7684\u5f71\u54cd\u3002\u5728\u4f7f\u7528\u5c4f\u853d\u7535\u7f06\u65f6\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u6b63\u786e\u63a5\u7ebf\uff0c\u5c06\u5c4f\u853d\u5c42\u63a5\u5730\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u5c4f\u853d\u6548\u679c\u3002\u6b64\u5916\uff0cModbus 485\u63a5\u53e3\u7684\u8fde\u63a5\u65b9\u5f0f\u548c\u53c2\u6570\u9700\u8981\u4e0e\u4ece\u673a\u8bbe\u5907\u8fdb\u884c\u5339\u914d\uff0c\u4ee5\u786e\u4fdd\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\n\n---\n*modbus.cn*\n"