SM1200B-160采用工业通用标准RS485总线 MODBUS-RTU协议接口，方便接入PLC，DCS等各种仪表或系统，用于监测温度等状态量。内部使用了较高精度的传感内核及相关器件，确保产品具有较高的可靠性与卓越的长期稳定性, 可定制RS232、RS485、CAN、4-20mA、DC0~5V/10V、ZIGBEE、Lora、WIFI、GPRS、NB-IOT等多种输出方式。

技术参数

技术参数	参数值
品牌	SONBEST/搜博
温度测量范围	-55℃~125℃
温度测量精度	±0.5℃ @25℃
支持温度芯片	DS18B20
传感器接线方式	三线制
通道数	10通道
每通道支持	1-16个温度点
支持测点总数	160个
地址设置方式	拔码开关
通讯接口	RS485
默认波特率	9600 8 n 1
供电电源	DC9~24V 1A
运行环境温度	-40~80°C
运行环境湿度	5%RH~90%RH

外形尺寸

产品接线

特色与细节

应用方案

典型应用

RS485型：通讯协议

    产品使用RS485 MODBUS-RTU标准协议格式,所有操作或回复命令都为16进制数据。设备出厂时默认设备地址为1，默认波特率为 9600,8,n,1。
1. 读取数据 ( 功能码 0x03)
    问询帧（十六进制），发送举例：查询1#设备1个数据,上位机发送命令：01 03 00 00 00 A0 45 B2 。

地址	功能码	起始地址	数据长度	校验码
01	03	00 00	00 A0	45 B2

    对于正确的问询帧，设备会响应数据：01 03 FA 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 81 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 38 2B 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ,响应格式：

地址	功能码	长度	...	校验码	01	03	FA	00 81	38 2B

    数据说明:命令中数据为十六进制，以数据1为例，00 79转为十进制数值为121,假设数据倍率为100，则真实值为121/100=1.21，其它以此类推。
2. 数据地址表

组态地址	寄存器地址	寄存器说明	数据类型	值范围
	40101	00 64	型号编码	读/写
0~65535	40102	00 65	测点总数	读/写
1~20	40103	00 66	设备地址	读/写
1~249	40104	00 67	波特率	读/写
0~6	40105	00 68	通讯模式	读/写
1~4	40106	00 69	协议类型	读/写
1~10	40107	00 6A	时间间隔	读/写
0~36000

清单与实物