---
lang: "en"
title: "TST320 2-channel Thermocouple Module with Modbus RTU Interface"
sku: "TST320"
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end_of_life: "false"
---

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TST320: 2-channel Thermocouple Module with Modbus RTU Interface

TST320 is a versatile and reliable solution for temperature monitoring and control, supporting two thermocouples. Thanks to its MODBUS RTU interface, it seamlessly integrates into industrial systems, allowing for easy communication and data exchange with other devices. It offers precise temperature readings for various applications and sectors, ensuring accurate process control and optimization. Its compact design and intuitive interface make it a practical choice for industrial automation and monitoring needs.

## Technical Specifications

- 24-bit ADC with DSP processing
- RS-485 interface with support for up to 63 nodes
- LED indicator for communication status display
- Compatibility with all types of thermocouples
- Integrated 120 ohm termination resistor
- Firmware upgrade capability via the interface
- Protocol: MODBUS RTU
- Physical level: RS-485 serial line
- Number of bus transceivers: up to 63
- Connector type: spring pluggable (screwless) with 3.81 mm pitch for cables from 28 to 16 (AWG) / from 0.081 to 1.31 (mm²)
- Maximum operating isolation voltage: 1500 Vrms
- 5-pin connector:

- 1 – +VDD (5 to 30 VDC)
- 2 – GND
- 3 – RS485+
- 4 – RS485-
- 5 – Terminator
- 6-pin connector:

- 1 – SGND
- 2 – TC2-
- 3 – TC2+
- 4 – TC1-
- 5 – TC1+
- 6 – SGND
- Operating temperature: -20 to 60°C
- Relative humidity: 10 to 90% non-condensing
- Storage temperature: -25 to 65°C
- Storage relative humidity: 5 to 95% non-condensing
- Operating voltage range (including -15/+20% according to IEC 62368-1): 5 to 30 VDC
- Current consumption: 15 mA @ 12 V
- Mounting: On 35 mm DIN rail
- Dimensions: 35 x 86 x 59 mm
- Weight: 75 g

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Source: https://shop.marcomweb.it/en/modbus/tst320-2-channel-thermocouple-module-with-modbus-rtu-interface

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.