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)
CANopen Module Specification 25
Doc.Id. HMSI-216-117
CM CANopen Module for SIMATIC S7-1200
Doc.Rev. 1.00
6.3.4 Diagnostics
When an event or alarm is generated by the CM CANopen module, the device alarm code 1Ah (external
error) is transmitted and will trigger an interrupt in the PLC user program. This interrupt indicates that
there is an alarm/event to be polled out from the module. Using the interface function Get Node &
Network Status (CANopen mode) or Get Diagnostic Information (Transparent CAN mode) informa
-
tion about the alarm/event can be polled out from the module. For more information, see “Get Node
& Network Status” on page 46 and “Get Diagnostic Information” on page 52.