Manual
Table Of Contents
- Important User Information
- P. About This Document
- 1. Product Overview
- 2. CANopen Fieldbus Functionality
- 3. Transparent CAN Mode
- 4. Installation
- 5. Configuration
- 6. CANopen Module Specification
- 7. Supported Objects
- 8. Interface Functions
- A. Technical Specification
- B. Status LED Timing Diagrams
- C. CANopen Emergency Codes
- D. Error Codes (RET)
Installation 9
Doc.Id. HMSI-216-117
CM CANopen Module for SIMATIC S7-1200
Doc.Rev. 1.00
4.4 Line Termination
To minimize the signal’s reflections from the end of the cable, a line termination is needed close to each
end of the bus. If the cable you are using is not terminated, connect a line termination between contacts
2 and 7 (CAN_L and CAN_H) beneath the slot, where the module is mounted. The impedance of the
termination should be 120 (5%, 1/4 W max.).