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AXTC4CO: Thermocouple Module, 4 Channel with CANopen

The Thermocouple Module monitors up to 4 channels of Type J, K or T thermocouples (TC). The temperature information is provided to the engine control system over CANopen®. Average temperature of all the active channels, or all channels from a block of 2, can be broadcasted to the CAN network. The scanner can flag low temperature warnings, high temperature warnings, or high temperature shutdowns to the engine control system. It will also detect and indicate open circuits on the sensor wires. All channels are fully isolated and measure temperatures at the same time. CAN communications are via an isolated CAN interface with CANopen® protocol. A RS-232 interface allows for quick user adjustments using Tera Term. The power supply was designed for a wide range of nominal inputs of 12V or 24Vdc. Using commercially available CANopen® service tools, the operator can configure the controller to suit a wide variety of applications using SDO object access, per CiA DS-301. An EDS file is provided.


  • Power generator sets and control systems for industrial engine applications.
Technical Specifications:Thermocouple Module, 4 Channel, CANopen®
Order Code:P/N: AXTC4CO
Power:12V or 24Vdc nominal
(8…75Vdc power supply range)
Inputs:4 Type J or K or T Thermocouples

All input channels are completely independent of each other and can read the thermocouple temperatures at the same time. Temperature is measured in °C with a 0.001°C resolution. All inputs send a message to the CAN bus.
Control Logic:User programmable functionality uses SDO object access per CiA DS-301 with commercially available CANopen® tools.
Settings are saved to non-volatile memory upon command.
An EDS file is provided.
Communications:1 CAN 2.0B port, protocol CiA CANopen®
Packaging:High Temperature Nylon housing, Deutsch IPD PCB Enclosure (EEC-325X4B)
4.62 x 5.24 x 1.43 inches
117.42 x 133.09 x 36.36 mm (W x L x H excluding mating plug)
Protection Rating:IP67; Unit is conformal coated within the housing.
Operating Conditions:-40 to 85°C (-40 to 185°F)
PDF Datasheet: Click icon for PDF datasheet.

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