2 channel Thermocouple to Modbus RTU converter

DAT2016

DAT2016 2 channel Thermocouple to Modbus RTU converter
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2 channel thermocouple input to Modbus RTU DAT2016.
• MODBUS RTU / MODBUS ASCII protocol
• 2 isolated input channels
• Configurable input for Thermocouple and mV signals
• Integrated Watch-Dog alarm
• Remotely configurable via RS485
• 1000 Vac galvanic isolation among all sections
• Front-panel LED indicators for power, INIT, and communication
• Connection via screw terminals
• High accuracy with cold-junction compensation
• CE / UKCA mark certified
• DIN rail mounting in compliance with EN-50022
General Description

The DAT2016 is a 2-channel Thermocouple and mV input to Modbus RTU converter engineered for precise temperature and low-level voltage measurement across an RS-485 network. Each input channel is galvanically isolated, supporting a wide selection of thermocouple types such as J, K, T, E, N, R, S, and B, along with mV input ranges for highly sensitive applications.

Communication is handled through the Modbus RTU or Modbus ASCII protocol, ensuring reliable integration with PLCs, HMIs, and SCADA systems. With 1000 Vac isolation between input, supply, and communication circuits, the module ensures excellent noise immunity—critical for thermocouple measurement in electrically harsh industrial environments.

The DAT2016 includes a Watch-Dog timer alarm for system safety, and front-panel LEDs provide visual indication of power, communication activity, and initialization status. The device is remotely configurable via RS-485 for rapid installation and simplified field maintenance. Encased in a 1-module DIN rail enclosure made from self-extinguishing material, the DAT2016 offers a compact and robust solution in compliance with EN-50022 standards.

INPUT OUTPUT POWER SUPPLY
Thermocouple (J, K, T, E, N, R, S, B) or mV Modbus RTU RS485 Power Supply Voltage 18-30Vdc
Reverse polarity protection 40 Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 30 and 45 mA PC Programmable Between All way 1000Vac.
EMC HOUSING TEMPERATURE
For Industrial environments Material self-extinguishing Operating Temperature 14°F +140°F -10°C +60°C
Immunity EN 61000-6-2 Dimensions W x H x T 3 7/8" x 2 1/2" x 3/4" Storage Temperature -40°F +185°F-40°C +85°C
Emission EN 6100-6-4 98 x 62 x 18 mm Humidity (non condensing) 0-90%
Weight 2 oz 60 g
DAT2016 Datasheet
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Applications
Drawings
Modbus Analog Input Modules
Application Note

Specifications
Input:  
Thermocouple 2 Channels J, K, T, E, N, R, S, B.
mV 0-100 mV, 200mV, 800mV, -100 to 800mV.
Communication:  
RS485: Modbus RTU, Modbus ASCII.
Power Supply: 18 - 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: 40 mA.
Temperature rating: Operative Temperature 14°F +140°F, - 10°C +60°C Storage Temperature - 40°F +185°F, - 40°C +85°C.
Humidity: (not condensing) 0-90%.
Housing: Material self-extinguishing.
Dimensions: W x L x H 3 7/8" x 2 1/2" x 3/4", 98 x 62 x 18 mm.
Weight: 2 oz 60 g.
EMC. For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Isolation: Between Modbus Master, Input, Power supply 1000Vac, 50Hz, 1 Minute.
Configuration: PC Configurable.
Drawings

Analog Inputs.

Thermocouple Input 0 Positive 9 and Negative 9
Thermocouple Input 1 Positive 11 and Negative 12
mV Input 0 Positive 9 and Negative 9
mV Input 1 Positive 11 and Negative 12
2 channel Thermocouple input to Modbus RTU DAT2016 input wiring.

Power Supply and INIT

Power Supply (18-30Vdc). Positive 1 Negative 2.
RS 485 Slave Positive (D+)5 Negative (D-) 4 GND 6
Init For Init short 3 and 2
2 channel Thermocouple input to Modbus RTU DAT2016 power supply.

Applications

Frequently Asked Questions about DAT2016

What is the DAT2016?
The DAT2016 is a 2-channel Modbus RTU converter designed for thermocouple and millivolt sensors. It functions as a Modbus slave device, providing precise temperature or low-voltage readings to PLCs, HMIs, or SCADA systems over the RS-485 network.
What types of inputs does it support?
The device supports a wide range of thermocouple types (such as J, K, T, E, N, R, S, and B) as well as low-level mV signals, making it suitable for high-accuracy industrial temperature monitoring.
How is the DAT2016 configured?
The DAT2016 is configured via the RS-485 interface using free configuration software. Input type, measurement range, cold-junction compensation, and Modbus communication parameters can all be adjusted to suit the application.
Does the device provide isolation?
Yes. The converter offers 1000 Vac galvanic isolation between the input channels, power supply, and communication lines, ensuring noise immunity and reliable signal acquisition.
What is the power supply requirement?
The module operates from an 18–30 VDC power supply, making it easy to integrate into standard industrial control environments.
How many channels does it have?
The DAT2016 includes 2 isolated input channels, allowing two separate thermocouples or mV sources to be measured simultaneously.
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