"# RS485-18B20\u6e29\u5ea6\u4f20\u611f\u5668\uff1a\u9ad8\u7cbe\u5ea6\u3001\u9632\u6c34\u9632\u5c18\u7684\u6e29\u5ea6\u76d1\u6d4b\u4e13\u5bb6\n\n> 2025-04-09 | 2025-12-03\n> https:\/\/www.modbus.cn\/en\/product\/30856.html\n\n---\n\n\u4ea7\u54c1\u6982\u8ff0\r\nRS485-18B20 \u6e29\u5ea6\u4f20\u611f\u5668\u662f\u4e00\u6b3e\u9ad8\u7cbe\u5ea6\u3001\u9632\u6c34\u9632\u5c18\u7684\u6e29\u5ea6\u76d1\u6d4b\u8bbe\u5907\uff0c\u5e7f\u6cdb\u9002\u7528\u4e8e\u51b7\u85cf\u8f66\u3001\u901a\u8baf\u673a\u623f\u3001\u4ed3\u5e93\u697c\u5b87\u7b49\u9700\u8981\u6e29\u5ea6\u68c0\u6d4b\u7684\u573a\u6240\u3002\u8be5\u4f20\u611f\u5668\u91c7\u7528 MODBUS-RTU \u901a\u4fe1\u534f\u8bae\uff0c\u652f\u6301\u591a\u8def\u6e29\u5ea6\u76d1\u6d4b\uff0c\u5177\u6709\u9ad8\u7cbe\u5ea6\u3001\u9ad8\u7a33\u5b9a\u6027\u548c\u53ef\u5b9a\u5236\u6027\u3002\r\n\r\n\u4ea7\u54c1\u7279\u70b9\r\n- \u9ad8\u7cbe\u5ea6\u6d4b\u91cf\uff1a\u6e29\u5ea6\u6d4b\u91cf\u7cbe\u5ea6\u4e3a \u00b10.1\u00b0C\uff0c\u5206\u8fa8\u7387\u4e3a 0.1\u00b0C\u3002\r\n- \u5bbd\u6e29\u5ea6\u8303\u56f4\uff1a\u6e29\u5ea6\u6d4b\u91cf\u8303\u56f4\u4e3a -55\u00b0C \u81f3 125\u00b0C\uff0c\u652f\u6301\u9ad8\u6e29\u5b9a\u5236\u3002\r\n- \u9632\u6c34\u9632\u5c18\u8bbe\u8ba1\uff1a\u4f20\u611f\u5668\u5373\u4f7f\u957f\u65f6\u95f4\u6d78\u6ce1\u5728\u6c34\u4e2d\u4e5f\u4e0d\u4f1a\u635f\u574f\u3002\r\n- \u7075\u6d3b\u5b9a\u5236\uff1a\u652f\u6301 1 \u8def\u30012 \u8def\u30013 \u8def\u6216 6 \u8def\u6e29\u5ea6\u4f20\u611f\u5668\uff0c\u7ebf\u957f\u53ef\u5b9a\u5236\uff0c\u5916\u58f3\u53ef\u5b9a\u5236\u3002\r\n- \u4f4e\u529f\u8017\uff1a\u6700\u5927\u529f\u8017 \u22640.05W\u3002\r\n- \u5feb\u901f\u54cd\u5e94\uff1a\u6e29\u5ea6\u54cd\u5e94\u65f6\u95f4 \u22642 \u79d2\uff08\u98ce\u901f 1m\/s\uff09\u3002\r\n- \u957f\u671f\u7a33\u5b9a\u6027\uff1a\u6e29\u5ea6\u957f\u671f\u7a33\u5b9a\u6027 \u22640.1\u00b0C\/\u5e74\u3002\r\n\r\n\u5e94\u7528\u573a\u666f\r\n- \u9c7c\u7f38\r\n- \u51b7\u67dc\u8f66\r\n- \u4ed3\u5e93\u76d1\u63a7\r\n- \u533b\u7597\r\n- \u6c14\u8c61\u7ad9\r\n- \u51c0\u5316\u5668\r\n\r\n\u6280\u672f\u53c2\u6570\r\n- \u7535\u6e90\uff1a7-30V DC\r\n- \u901a\u4fe1\u534f\u8bae\uff1aMODBUS-RTU\r\n- \u8f93\u51fa\u4fe1\u53f7\uff1a485 \u4fe1\u53f7\r\n- \u6e29\u5ea6\u7cbe\u5ea6\uff1a\u00b10.3\u00b0C\uff0825\u00b0C\uff09\r\n- \u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4\uff1a-55\u00b0C \u81f3 125\u00b0C\r\n- \u54cd\u5e94\u65f6\u95f4\uff1a\u22642 \u79d2\uff08\u98ce\u901f 1m\/s\uff09\r\n- \u957f\u671f\u7a33\u5b9a\u6027\uff1a\u22640.1\u00b0C\/\u5e74\r\n- \u7ebf\u957f\uff1a\u53ef\u5b9a\u5236\r\n- \u5916\u58f3\uff1a\u4e0d\u9508\u94a2\u5916\u58f3\uff08\u9ed8\u8ba4\uff09\r\n\r\n\u901a\u4fe1\u534f\u8bae\r\n\u901a\u4fe1\u57fa\u672c\u53c2\u6570\r\n- \u7f16\u7801\uff1a8 \u4f4d\u4e8c\u8fdb\u5236\r\n\u6570\u636e\u4f4d\uff1a8 \u4f4d\r\n- \u5947\u5076\u6821\u9a8c\u4f4d\uff1a\u65e0\r\n- \u505c\u6b62\u4f4d\uff1a1 \u4f4d\r\n- \u9519\u8bef\u6821\u9a8c\uff1aCRC\uff08\u5197\u4f59\u5faa\u73af\u7801\uff09\r\n- \u6ce2\u7279\u7387\uff1a\u652f\u6301 1200-115200\uff08\u51fa\u5382\u9ed8\u8ba4 9600\uff09\r\n\r\nMODBUS-RTU \u6570\u636e\u5e27\u683c\u5f0f\r\n- \u5730\u5740\u7801\uff1a\u8bbe\u5907\u5730\u5740\uff08\u9ed8\u8ba4 0x01\uff09\r\n- \u529f\u80fd\u7801\uff1a\u4e3b\u673a\u53d1\u9001\u529f\u80fd\u6307\u4ee4\uff08\u652f\u6301 03, 06\uff09\r\n- \u6570\u636e\u533a\uff1a16 \u4f4d\u6570\u636e\uff0c\u4f4e\u4f4d\u5728\u524d\uff0c\u9ad8\u4f4d\u5728\u540e\r\n- \u6821\u9a8c\u7801\uff1aCRC \u6821\u9a8c\uff0c2 \u5b57\u8282\uff0c\u4f4e\u4f4d\u5728\u524d\uff0c\u9ad8\u4f4d\u5728\u540e\r\n\r\n\u4e3b\u673a\u53d1\u9001\u95ee\u8be2\u5e27\u683c\u5f0f\r\n- \u5730\u5740\u7801\uff1a1 \u5b57\u8282\r\n- \u529f\u80fd\u7801\uff1a1 \u5b57\u8282\r\n- \u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740\uff1a2 \u5b57\u8282\r\n- \u5bc4\u5b58\u5668\u957f\u5ea6\uff1a2 \u5b57\u8282\r\n- \u6821\u9a8c\u7801\uff1a2 \u5b57\u8282\r\n\r\n\u4ece\u673a\u56de\u590d\u5e94\u7b54\u5e27\u683c\u5f0f\r\n- \u5730\u5740\u7801\uff1a1 \u5b57\u8282\r\n- \u529f\u80fd\u7801\uff1a1 \u5b57\u8282\r\n- \u6570\u636e\u957f\u5ea6\uff1a1 \u5b57\u8282\r\n- \u6570\u636e\u533a\uff1a2 \u5b57\u8282\uff08\u6bcf\u533a\uff09\r\n- \u6821\u9a8c\u7801\uff1a2 \u5b57\u8282\r\n\r\n\u5bc4\u5b58\u5668\u529f\u80fd\r\n| \u5bc4\u5b58\u5668\u5730\u5740 | \u6570\u636e\u5185\u5bb9 | \u64cd\u4f5c | \u652f\u6301\u529f\u80fd\u7801 |\r\n|-------------|-----------|-------|-------------|\r\n| 0000H | \u6e29\u5ea6\u503c\u901a\u9053 1\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0001H | \u6e29\u5ea6\u503c\u901a\u9053 2\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0002H | \u6e29\u5ea6\u503c\u901a\u9053 3\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0003H | \u6e29\u5ea6\u503c\u901a\u9053 4\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0004H | \u6e29\u5ea6\u503c\u901a\u9053 5\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0005H | \u6e29\u5ea6\u503c\u901a\u9053 6\uff08\u5341\u500d\uff09 | \u53ea\u8bfb | 03 |\r\n| 0010H | \u8bbe\u5907\u7c7b\u578b\uff0819 \u8868\u793a 18B20-6H1 \u8bbe\u5907\uff09 | \u53ea\u8bfb | 03 |\r\n| 0011H | \u8bbe\u5907\u5730\u5740\uff08\u8303\u56f4 01-255\uff09 | \u8bfb\u5199 | 03, 06 |\r\n| 0012H | \u6ce2\u7279\u7387\uff080-300, 1-1200, 2-2400, 3-4800, 4-9600, 5-19200, 6-38400, 7-57600, 8-115200\uff09 | \u8bfb\u5199 | 03, 06 |\r\n| 0013H | \u6821\u9a8c\u7801\u9ad8\u4f4e\u4f4d\uff080-\u9ad8\u4f4d\u5728\u524d, 1-\u4f4e\u4f4d\u5728\u524d\uff09 | \u8bfb\u5199 | 03, 06 |\r\n| 0020H | \u6e29\u5ea6\u6821\u51c6\u503c\uff08\u5341\u500d\uff09 | \u8bfb\u5199 | 03, 06 |\r\n\r\n\u4f7f\u7528\u8bf4\u660e\r\n\u786c\u4ef6\u8fde\u63a5\r\n1. \u8bbe\u5907\u5b89\u88c5\u524d\u68c0\u67e5\uff1a\r\n- \u53d8\u9001\u5668\u8bbe\u5907 1 \u53f0\r\n- \u5408\u683c\u8bc1\u3001\u4fdd\u4fee\u5361\r\n- USB \u8f6c 485\uff08\u9009\u914d\uff09\r\n- 485 \u7ec8\u7aef\u7535\u963b\uff08\u591a\u53f0\u8bbe\u5907\u8d60\u9001\uff09\r\n- \u5361\u6263 1 \u4e2a\r\n\r\n2. \u63a5\u53e3\u8bf4\u660e\uff1a\r\n- \u7535\u6e90\u63a5\u53e3\u652f\u6301 7-30V DC\u3002\r\n- 485 \u4fe1\u53f7\u7ebf\u63a5\u7ebf\u65f6\u6ce8\u610f A\/B \u4e24\u6761\u7ebf\u4e0d\u80fd\u63a5\u53cd\uff0c\u603b\u7ebf\u4e0a\u591a\u53f0\u8bbe\u5907\u95f4\u5730\u5740\u4e0d\u80fd\u51b2\u7a81\u3002\r\n\r\n3. \u4f20\u611f\u5668\u63a5\u7ebf\uff1a\r\n- \u7ea2\u8272\uff1a\u7535\u6e90\u6b63\uff087-30V DC\uff09\r\n- \u9ed1\u8272\uff1a\u7535\u6e90\u8d1f\r\n- \u9ec4\u8272\uff1a485-A\r\n- \u7eff\u8272\/\u767d\u8272\uff1a485-B\r\n\r\n\u914d\u7f6e\u8f6f\u4ef6\u5b89\u88c5\u53ca\u4f7f\u7528\r\n1. \u4f20\u611f\u5668\u63a5\u5165\u7535\u8111\uff1a\r\n- \u5c06\u4f20\u611f\u5668\u901a\u8fc7 USB \u8f6c 485 \u8fde\u63a5\u7535\u8111\u5e76\u4f9b\u7535\u3002\r\n- \u5728\u8bbe\u5907\u7ba1\u7406\u5668\u4e2d\u67e5\u770b\u6b63\u786e\u7684 COM \u53e3\u3002\r\n\r\n2. \u4f20\u611f\u5668\u76d1\u63a7\u8f6f\u4ef6\u7684\u4f7f\u7528\uff1a\r\n- \u6253\u5f00\u914d\u7f6e\u8f6f\u4ef6\uff0c\u9009\u62e9\u6b63\u786e\u7684\u4e32\u53e3\u3002\r\n- \u6d4b\u8bd5\u6ce2\u7279\u7387\u548c\u8bbe\u5907\u5730\u5740\u3002\r\n- \u6839\u636e\u9700\u8981\u4fee\u6539\u5730\u5740\u548c\u6ce2\u7279\u7387\u3002\r\n\r\n\u901a\u4fe1\u534f\u8bae\u793a\u4f8b\r\n1. \u8bfb\u53d6\u6e29\u5ea6\u6570\u503c\uff1a\r\n- \u4e3b\u673a\u95ee\u8be2\u5e27\uff1a`0x01 0x03 0x00 0x00 0x00 0x01 0x84 0x0A`\r\n- \u4ece\u673a\u5e94\u7b54\u5e27\uff1a`0x01 0x03 0x02 0xFF 0x9F 0xB9 0xDC`\r\n\r\n2. \u8bfb\u53d6\u8bbe\u5907\u5730\u5740\uff1a\r\n- \u4e3b\u673a\u95ee\u8be2\u5e27\uff1a`0x01 0x03 0x00 0x11 0x00 0x01 0xD4 0x0F`\r\n- \u4ece\u673a\u5e94\u7b54\u5e27\uff1a`0x01 0x03 0x02 0x00 0x01 0x79 0x84`\r\n\r\n3. \u4fee\u6539\u8bbe\u5907\u5730\u5740\uff1a\r\n- \u4e3b\u673a\u95ee\u8be2\u5e27\uff1a`0x01 0x06 0x00 0x11 0x00 0x02 0x58 0x0E`\r\n- \u4ece\u673a\u5e94\u7b54\u5e27\uff1a`0x01 0x06 0x00 0x11 0x00 0x02 0x58 0x0E`\r\n\r\n\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5\r\n1. \u65e0\u8f93\u51fa\u6216\u8f93\u51fa\u9519\u8bef\uff1a\r\n- \u68c0\u67e5 COM \u53e3\u9009\u62e9\u662f\u5426\u6b63\u786e\u3002\r\n- \u68c0\u67e5\u6ce2\u7279\u7387\u662f\u5426\u6b63\u786e\u3002\r\n- \u68c0\u67e5 485 \u603b\u7ebf\u662f\u5426\u65ad\u5f00\u6216 A\/B \u7ebf\u63a5\u53cd\u3002\r\n- \u68c0\u67e5\u8bbe\u5907\u6570\u91cf\u6216\u5e03\u7ebf\u957f\u5ea6\u662f\u5426\u8fc7\u957f\u3002\r\n- \u68c0\u67e5 USB \u8f6c 485 \u9a71\u52a8\u662f\u5426\u5b89\u88c5\u6216\u635f\u574f\u3002\r\n- \u68c0\u67e5\u8bbe\u5907\u662f\u5426\u635f\u574f\u3002\r\n\r\n2. \u4f20\u611f\u5668\u65ad\u8def\uff1a\r\n- \u8fd4\u56de\u9519\u8bef\u6570\u503c -185.0\uff0c\u4e0d\u5f71\u54cd\u5176\u4ed6\u4f20\u611f\u5668\u7684\u8bfb\u53d6\u3002\r\n\u7ed3\u8bba\r\nRS485-18B20 \u6e29\u5ea6\u4f20\u611f\u5668\u4ee5\u5176\u9ad8\u7cbe\u5ea6\u3001\u9632\u6c34\u9632\u5c18\u8bbe\u8ba1\u548c\u7075\u6d3b\u7684\u5b9a\u5236\u9009\u9879\uff0c\u4e3a\u5404\u79cd\u6e29\u5ea6\u76d1\u6d4b\u5e94\u7528\u63d0\u4f9b\u4e86\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\u3002\u901a\u8fc7 MODBUS-RTU \u901a\u4fe1\u534f\u8bae\uff0c\u7528\u6237\u53ef\u4ee5\u8f7b\u677e\u96c6\u6210\u8be5\u8bbe\u5907\u5230\u73b0\u6709\u7684\u76d1\u63a7\u7cfb\u7edf\u4e2d\uff0c\u5b9e\u73b0\u9ad8\u6548\u3001\u7a33\u5b9a\u7684\u6e29\u5ea6\u76d1\u6d4b\u3002\r\n \n\n---\n*modbus.cn*\n"