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tMDS-16 - Temperature meter with Modbus interface






tMDS-16 is a temperature measurement module designed for Modbus RTU-based systems. It features two independent 1-Wire buses, each capable of connecting up to 8 DS18B20 temperature sensors, allowing for a total of 16 sensors.
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tMDS-16 is a temperature measurement module designed for Modbus RTU-based systems.
It features two independent 1-Wire buses, each capable of connecting up to 8 DS18B20 temperature sensors, allowing for a total of 16 sensors.
Temperature data is made available via Modbus registers, which include both the current sensor readings and corresponding offset values used for calibration. This ensures accurate and consistent measurements across all connected sensors.
The tMDS-16 is primarily designed to function as an extension module for LK4 or LK3.5+ devices (also compatible with LK3.9), enabling scalable and distributed temperature monitoring.
A ready-to-use configuration file for these devices is available, allowing for quick and hassle-free integration.
Technical specifications
Power supply | 5-12 V DC (connector) 5 V (USB) |
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Sensor support | Up to 2 x 8 DS18B20 sensors |
Interfaces | 1-Wire: 2 buses via RJ12 and 3-position terminal block, Modbus RTU (RS485), Serial (over USB; 115200 baud) |
Dimensions | 74 x 40 x 30 mm (without DIN handle) |
Weight | 44 g |
Additional information
More information about the device, usage, and custom Modbus module configuration for LK4/LK3.5+ is available at https://tinycontrol.pl/en/tmds-16/.