"# Modbus\u534f\u8bae\u58c1\u6302\u5f0f\u6e29\u6e7f\u5ea6\u53d8\u9001\u5668LED\u663e\u793a\u5c4f\u6570\u5b57\u770b\u677f\n\n> 2022-12-27 | 2023-08-13\n> https:\/\/www.modbus.cn\/en\/11331.html\n\n**\u4ea7\u54c1\u8bf4\u660e\u4e66**\n\n---\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122473-image.png)\r\n\r\n\r\n\r\n\n## **\u4ea7\u54c1\u4ecb\u7ecd\uff1a**\n\n\r\n\r\n\r\n\r\n\n\u672c\u4ea7\u54c1\u4e3a\u5de5\u4e1a\u6e29\u6e7f\u5ea6\u663e\u793a\u5c4f\uff0c\u58c1\u6302\u5b89\u88c5\uff0c\u53ef\u4ee5\u9009\u62e9\u4e00\u4f53\u5f0f\u6216\u5206\u4f53\u5f0f\u63a2\u5934\uff0c\u5b9e\u65f6\u91c6\u96c6\u663e\u793a\u73af\u5883\u6e29\u5ea6\u548c\u6e7f\u5ea6\u53c2\u6570\uff0c\u5916\u7559 RS485 \u901a\u8baf\u548c\u7ee7\u7535\u5668\u89e6\u70b9\u63a5\u53e3\uff0c\u53ef\u642d\u914d\u62a5\u8b66\u5668\/\u7ee7\u7535\u5668\u4f7f\u7528\u3002\n\n\r\n\r\n\r\n\r\n\n\u9002\u7528\u573a\u6240\uff1a\u5b9e\u9a8c\u5ba4\u3001\u4ed3\u5e93\u3001\u8f66\u95f4\u3001\u673a\u623f\u3001\u5de5\u5382\u3002\n\n\r\n\r\n\r\n\r\n\n## \u89c4\u683c\u53c2\u6570\uff1a\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122032-image.png)\r\n\r\n\r\n\r\n\n## \u4ea7\u54c1\u5c3a\u5bf8\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122094-image.png)\r\n\r\n\r\n\r\n\n## \u63a5\u53e3\u8bf4\u660e\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122125-image.png)\r\n\r\n\r\n\r\n\n## \u5927\u5c4f\u6309\u952e\u8bf4\u660e\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122160-image.png)\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122192-image.png)\r\n\r\n\r\n\r\n\n## 485 \u901a\u4fe1\u534f\u8bae\u4e0e\u6570\u636e\u683c\u5f0f\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122269-image.png)\r\n\r\n\r\n\r\n\n## \u5bc4\u5b58\u5668\u5730\u5740\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122303-image.png)\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122326-image.png)\r\n\r\n\r\n\r\n\n\u53c2\u6570\u8bfb\u53d6\n\n\r\n\r\n\r\n\r\n\n\u4f8b\uff1a\u8bfb\u53d6\u8bbe\u5907\u5730\u5740\u4e3a 01 \u7684\u4f20\u611f\u5668\u6e29\u6e7f\u5ea6\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122389-image.png)\r\n\r\n\r\n\r\n\n\u6ce8\u91ca\uff1a\n\u5c06\u8fd4\u56de\u7684\u5341\u516d\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u6210\u5341\u8fdb\u5236\u9664\u4ee5 10\uff0c\u5373\u53ef\u5f97\u5230\u76f8\u5e94\u7684\u6e29\u6e7f\u5ea6\u503c\u3002\n\u6e29\u5ea6 :0x00FA (HEX)= 250(DEX)\uff0c\u9664\u4ee5 10 \u5373 25.0\u2103\uff1b\n\u6e7f\u5ea6 \uff1a0x0190\uff08HEX\uff09= 400\uff08DEX\uff09\uff0c\u9664\u4ee5 10 \u5373 40.0%RH\u3002\n\u6ce8\uff1a\u5f53\u6e29\u5ea6\u4f4e\u4e8e 0\u2103\u65f6\u4ee5\u8865\u7801\u5f62\u5f0f\u4e0a\u4f20\uff0c\u5047\u5982\u8bfb\u53d6\u5230\u7684\u6e29\u5ea6\u662fFF9B\u3002\nH(\u5341\u516d\u8fdb\u5236)= 1111 1111 1001 1011\uff08\u4e8c\u8fdb\u5236\uff09\uff0c\u5219\u5b9e\u9645\u6e29\u5ea6\u503c\u4e3a 1000 0000 0110 0101\n\uff08\u4e8c\u8fdb\u5236\uff09=0065(\u5341\u516d\u8fdb\u5236\uff09= -101\uff08\u5341\u8fdb\u5236\uff09 => \u6e29\u5ea6=-10.1\u2103\u3002\n\n\r\n\r\n\r\n\r\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/12\/1672122452-image.png)\r\n\r\n\r\n\r\n\n \n\n---\n*modbus.cn*\n"