SONBUS SM1601B RS485 Bus Four-Channel PT100 Temperature Acquisition Module User Manual

June 5, 2024
SONBUS

SONBUS SM1601B RS485 Bus Four-Channel PT100 Temperature Acquisition

Module

SM1601B using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC, DCS and other instruments or systems for monitoring temperature state quantities.The internal use of high -precision sensing core and related devices to ensure high reliability and excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA, DC0~5V\10V, ZIGBEE,Lora, WIFI,GPRS and other output methods.

Technical Parameters

Brand SONBEST
Temperature measurement range -50°C to +100°C (optional with other ranges)
Detecting Core Devices PT100
Temperature Measurement Accuracy ± 0.5°C (0.5FS)
Thermal Response Coefficient 10mΩ/K
The resistance @ °C 1000Ω±0.12Ω/K
The resistance rate 0.385Ω/K
Reference Standards Using EN 60751 Class B Standards
Channels 8
Communication Interface RS485
Default baud rate 9600 8 n 1
Power DC9~24V 1A
Running temperature -40~80°C
Working humidity 5%RH~90%RH

Wiring instructions

Any incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as follows in the case of powe r failure, and then connect the cable to confirm the correctness  and then use it again.

ID Core color Identification Note
1 Red V+ Power +
2 Green V- Power –
3 Yellow A+ RS485 A+
4 Blue B- RS485 B-

In the case of broken wires, wire the wires as sh own in the figure. If the product itself has no leads, the core color is for reference.

Communication Protocol

Disclaimer
This document provides all information about the product, does not grant any license to intellectual property, does not express or imply, and prohibits any other means of granting any intellectual property rights, such as the statement of sales terms and conditions of this product, other issues. No liability is assumed. Furthermore, our company makes no warranties, express or implied, regarding the sale and use of this product, including the suitability for the specific use of the product, the marketability or the infringement liability for any patent, copyright or other intellectual property rights, etc. Product specificati ons and product descriptions may be modified at any time without notice.

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