Corrected from:
PLC Designer V3.5
Response of the new version?
An online change performed while the PLC processing is running does not cause a failure of an EtherCAT or CAN telegram.
Which products are affected?
PLC Designer from V3.3
What happens?
Different responses may occur:
? Error messages at the nodes connected to the EtherCAT bus or CAN
? Cracking noise of the motion drives connected to the EtherCAT-Bus or CAN
When does the problem occur?
If an online change is performed while a PLC process is running, a jitter of approx. 300?s occurs in the real-time processing. If the controller addresses to nodes via EtherCAT bus or CAN bus it may happen that a telegram fails when going online.
Diagnostic options?
None
Short-term measures/recommendations?
Do not perform an online change while the axes connected to the controller are still rotating.
Evaluation
It may happen that a CAN or EtherCAT telegram fails when an online change is performed while the PLC program is running. As a result, an error message may occur at the nodes connected to the controller or a cracking noise can be heard at the motion drives connected.
