CAN Bus Interface for CTi

CANbus Interface for CTi Pyrometers is reliable and deterministic communication for industrial integration.

The Optris CTi series offers a robust CANbus interface, designed to seamlessly integrate high-precision temperature measurement into complex industrial networks and control systems. By utilizing a classic CAN bus protocol (ISO 11898), the CTi pyrometers ensure reliable, real-time data exchange with PLCs, embedded systems, and industrial controllers.

Technical Specifications:

• Protocol: Classic CAN bus (ISO 11898)
• Bit Rate: 250 kbit/s
• Frame Format: Standard frame with 11-bit identifier (No extended frames, no CAN FD payload)
• Data Length: Variable, between 1 and 8 bytes (DLC 1-8) depending on the specific command
• Frame Type: Data frames only (No RTR frames)

Command-Response Architecture:

The interface operates on a strict request-response scheme. Every request sent to the device expects exactly one response with an identical format scheme, ensuring deterministic communication and simplified integration into your control logic.

Key Benefits:

• -Simplicity: Standard 11-bit identifiers and classic CAN protocol eliminate the need for complex gateway configurations.
• Flexibility: Variable data length (1-8 bytes) allows for optimized payload sizes tailored to each command.
• Reliability: Deterministic request-response behavior ensures predictable timing and data integrity in industrial environments.

Applications:

Ideal for integration into automotive, manufacturing, and process automation systems where reliable, low-latency communication is essential. The CTi CANbus interface provides a direct, standardized path to incorporate non-contact temperature measurement into your existing CAN infrastructure.

The device communicates over a classic CAN bus (ISO 11898) with the following properties:

• Bit rate: 250 kbit/s.
• Frame format: standard frame with 11-bit identifier (no extended frame, no CAN FD payload).
• Data length: variable, between 1 and 8 bytes (DLC 1-8) depending on the command – the exact length results from the respective command.
• Only data frames are used, no RTR frames.
• Every request to the device generally expects exactly one response with an identical format scheme.

How I can change the CAN ID?

There are two ways to change the CAN ID. Permanent: with the rotary switch on the board and temporary by writing via CAN command 0x0d.

• Interface board
• USB stick
• 2 Mounting screws M3x5