CAN-CBX-THERMO
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CANopen® Module with 4 Thermocouple Interfaces
High Resolution Temperature Measurement
4 high resolution and accuracy thermocouple inputs
Support of J, K, B, E, N, R, S and T thermocouples
Automatic cold junction compensation
CANopen profiles acc. to CiA® specification CiA 301 and CiA 404
Approved Reliability and Ease of Use
Electrical isolation of thermocouple interfaces: all channels are electrically isolated against the microcontroller circuits and against each other
InRailBus technology combines high ease of use and proven reliability
DIN-EN carrier rail mounting (TS 35)
Setup Options of Thermocouple Interfaces
Offset/Gain can be adjusted by the user
Voltage-only measurement also available
High Resolution Thermocouple Interfaces
The CAN-CBX-THERMO is designed for direct connection of up to four thermocouples.
Depending on the selected sample rate and the external wiring a resolution of at least 1 ?V can be achieved.
For cold junction compensation the temperature of the the sensor clamp is measured by a digital temperature sensor. The conversion of the four thermocouple inputs is realized by four independent ??-converters. Linearisation according to NIST is achieved by the on board microcontroller.
CAN Interface and LED Display
The CAN interface is designed according to ISO 11898-2 high-speed layer with electrical isolation and supports bit rates up to 1 Mbit/s. The CANopen-node number and the CANbit rate can be easily set via coding switches. Four LEDs indicate the thermocouple and CANopen node status.
InRailBus
The CAN-CBX-THERMO features the possibility to connect the power supply and the CAN bus signals via the InRailBus connector (TBUS-connector) integrated in the mounting rail. Individual modules can then be removed from the InRailBus without interrupting the bus signals.
Software Support
The module comes with CANopen firmware according to CiA 301 and supports the CiA 404 profile for measuring devices.
Specific References
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