CAN-CBX-THERMO 4 Thermocouple Interfaces 4 High Resolution Thermocouple Inputs • Electrical isolation of thermocouple inputs, all channels are electrically isolated against each other • Support of J, K, B, E, N, R, S and T thermocouples • Voltage measurement 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. • CANopen CiA 404 support • InRailBus technology combines high ease 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. • High resolution and accuracy • Automatic cold junction compensation • Offset/Gain can be adjusted by the user For cold junction compensation the temperature of the the sensor clamp is measured by a digital temperature sensor. 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 µV can be achieved. Coding Switches Electrical Isolation CAN Connector MC1,5/5-GF-3,81 Software Support The module comes with CANopen firmware according to CiA 301 and supports the CiA 404 profile for measuring devices. The conversion of the four thermocouple inputs is realized by four independent ΣΔ-converters. Linearisation according to NIST is achieved by the on board microcontroller. Digital Isolator CAN CANopen Node-ID Electrical Isolation DC/DC Converter InRailBus Connector for CAN-CBX-TBUS Power Connector MSTBO 2,5/4G1L-KMGY Digital Isolator Thermocouple Inputs Connector MC 1.5/12-GF-3,81 DC/DC Converter -A/D Converter LEDs Digital Temperature Sensor Technical Specifications: Microcontroller and CAN interface: Microcontroller: MB90F497, 16-bit, 1x ISO 11989-1 CAN interface: Connector: high-speed, acc. to ISO 11898-2, up to 1 Mbit/s 1x electrically isolated, 5-pin COMBICON style, 1x InRailBus Protocol: CANopen CiA 301, CiA 404 Thermocouple inputs: Number of inputs: 4 ΣΔ-A/D-converter Sensor types: - J, K, B, E, N, R, S or T thermocouples with cold junction compensation - voltage measurement Accuracy: Input resistance: Conversion rate: Resolution: General: Operating supply voltage: Current consumption: Ambient temperature: Relative humidity: Dimensions: Weight: Order information: Designation CAN-CBX-THERMO 4 thermocouple interfaces with cold junction compensation Connector: 12-pin Mini-COMBICON connector Electrical isolation: electrical isolation of thermocouple inputs against each other and against power supply All data are subject to change without prior notice. I:\Texte\Doku\DBL\CAN\ENGLISCH\Blue\CAN-CBX-THERMO_Datasheet_en_11.odt CiA® and CANopen® are registered community trademarks of CAN in Automation e.V.. All trademarks are reserved by their respective owners. esd electronic system design gmbh Vahrenwalder Str. 207 30165 Hannover / Germany