| Fieldbus connection for CANopen CX1500-FB510 |
Diagnostics
CANopen state
In many cases it is important to know whether the communication with the higher-level master is still OK. To this end, link the "NodeState" variable with your PLC program. A TwinCAT configuration is necessary for this.
Fig. CANopen diagnostics byte in the System Manager
Requirements
Error number | Description | Remedy |
|---|---|---|
0 | No error | - |
2 | Guarding Error | Check your connection |
20 | Too less PDOs received (only TwinCAT Config.) | Check your configuration |
22 | Sync Error | Check your connection |
129 | Node is pre-operational | Start operational mode |
130 | Node is stopped | Start the node |
Example
If CANopen is interrupted (e. g. because the cable is pulled of or the PLC is switched of), the BX5100 reports this with ??? in NodeState.