CANopen temperature measurement using thermocouples * CANopen module with 4 type K thermocouple inputs

Product Description – CANopen module for temperature measurement using thermocouples

The UC-CANOPEN-THERMO4_K is an industrial-grade temperature measurement module designed for the precise measurement of up to four Type K thermocouples. Thanks to its high measurement accuracy and robust design, the module is ideal for demanding applications in manufacturing, process monitoring, laboratory environments, and test benches. The integrated galvanic isolation reliably protects both the module and connected systems from interference and potential differences—a decisive advantage in industrial measurement environments.
Via the CANopen interface, the CANopen module for temperature measurement using thermocouples can be seamlessly integrated into existing fieldbus architectures. Common CANopen profiles are supported, enabling quick configuration and flexible integration into control and automation systems. The integrated A/D filter function ensures stable, low-noise temperature values through averaging, even with long cable runs or electromagnetic interference.
The screwless WAGO connectors enable secure, fast, and mis-plug-proof wiring. The system can be expanded modularly via the DIN-rail bus—for example, with a relay output module to directly switch temperature limits or control actuators.
Typical applications include temperature monitoring in industrial processes, the acquisition of measured values in test benches, quality assurance in production lines, and integration into CANopen-based automation systems. Combining precise temperature measurement, robust insulation, and flexible CANopen communication, the UC-CANOPEN-THERMO4_K offers a reliable solution for professional industrial applications.

Standardized CANopen communication for industrial automation networks

The CANopen interface of the UC-CANOPEN-THERMO4_K is based on the internationally established CiA® specifications 301, 305, and 401 and enables reliable and standardized integration into industrial fieldbus environments. By supporting CAN 2.0A and CAN 2.0B, a high level of compatibility with a wide range of control and automation systems is ensured. Galvanic isolation of the bus connection provides robust signal transmission and reliably protects communication against interference in harsh industrial environments. Device addressing is conveniently carried out via integrated rotary coding switches, allowing the node ID to be set directly on the device at hardware level, which enables fast commissioning without additional configuration software. In addition, the baud rate can be flexibly adapted to the respective network, ensuring easy integration into existing system architectures. Furthermore, the interface on the module supports data rates of up to 1 Mbit/s as well as features such as auto-baud detection to further simplify commissioning. This results in a powerful, stable, and standards-compliant communication solution that supports both fast installation and reliable operation in industrial environments.

Flexible control via CANopen for easy system integration

The control of the UC-CANOPEN-THERMO4_K is fully based on the standardized CANopen protocol, enabling seamless integration into existing automation and control systems. By supporting the object-oriented communication model according to CiA 301, all functions are addressed and controlled via the Object Dictionary. Configuration is conveniently performed using standardized communication objects such as SDOs, while cyclic process data exchange via PDOs ensures fast and deterministic response in real-time operation.
In addition, the CANopen module for temperature measurement using thermocouples supports typical CANopen Network Management (NMT) functions, enabling defined start, stop, and error states of the device within the network. Flexible assignment of node ID and baud rate simplifies adaptation to different network topologies and control environments. Thanks to this consistent implementation of the CANopen standard, the module can be efficiently integrated into existing automation architectures and centrally operated via the control system.

High-precision temperature measurement with K-type thermocouple inputs for demanding industrial applications

The four type K thermocouple inputs enable precise and reliable temperature measurement across a very wide range from -200 °C to +1350 °C. The CANopen module for temperature measurement using thermocouples is specifically designed for direct connection of K-type thermocouples and delivers stable measurement values even under changing environmental conditions.
Thanks to the integrated 14-bit A/D converter, a high resolution of 0.25 °C is achieved, allowing even the smallest temperature changes to be captured accurately. An integrated cold-junction compensation further improves measurement accuracy by automatically compensating for temperature influences at the connection points.
The UC-CANOPEN-THERMO4_K also features galvanic isolation of the measurement channels, ensuring high noise immunity and reliable operation in industrial environments. Overall, the module provides a robust and precise solution for demanding temperature monitoring applications.

Compact DIN rail design with modular system integration

Das CANopen module for temperature measurement using thermocouples ist für die Montage auf der DIN-Hutschiene ausgelegt und verfügt über ein kompaktes, industrietaugliches Gehäuse, das auf den Einsatz in rauen Automatisierungsumgebungen optimiert ist. Die elektrischen Anschlüsse sind über robuste, steckbare Klemmsysteme realisiert, die eine vibrationssichere Verdrahtung und eine schnelle Installation ermöglichen. Ein zentrales Merkmal ist der integrierte T-Bus, der als interner Systembus sowohl die Kommunikation als auch die Versorgungsspannung zwischen mehreren Modulen ohne zusätzliche Verdrahtung durchreicht. Dadurch entsteht eine durchgängige Backplane-Struktur, bei der Module mechanisch auf der Hutschiene verbunden und elektrisch automatisch gekoppelt werden. Der T-Bus reduziert den Verkabelungsaufwand erheblich und sorgt gleichzeitig für eine saubere, EMV-optimierte Systemarchitektur mit geringem Störpotenzial. Über die modulare Steckmechanik lassen sich weitere Teilnehmer einfach ergänzen, ohne das bestehende System neu verdrahten zu müssen. Die CANopen-Kommunikation des UC-CANOPEN-THERMO4_K wird dabei nahtlos in diese T-Bus-Struktur eingebettet, wodurch eine skalierbare und systematisch aufgebaute Netzwerktopologie entsteht.
Zusätzlich verfügt das CANopen module for temperature measurement using thermocouples über integrierte Drehkodierschalter zur schnellen und einfachen Parametrierung direkt am Gerät. Über diese lassen sich zentrale Einstellungen wie beispielsweise die Node-ID ohne Softwarezugriff konfigurieren. Dies ermöglicht eine besonders schnelle Inbetriebnahme sowie eine eindeutige Geräteadressierung im Feld. Die Einstellung erfolgt dabei robust und manipulationssicher, auch im spannungslosen Zustand.

Maintenance and Long-Term Planning

The UC-CANOPEN-THERMO4_K supports users with a durable, industrial-grade architecture that enables predictable use over many years. The combination of robust drivers, comprehensive documentation, and the ICT diagnostic tool simplifies commissioning and maintenance. Electrical isolation and high-quality electronics ensure reliable operation, while support and continuous updates guarantee seamless integration into professional automation environments.