Corrected from:
i700 servo inverter, V1: V01.11.12.12374
i700 servo inverter, V2: V02.11.12.12375
Response of the new version:
Now, the transport buffers are enabled again when changing to INIT.
Thus, EOE communication is no longer impaired after a status change to PRE-OP.
What happens?
EoE communication (EtherNet over EtherCAT):
After a status change of the EtherCAT, EoE communication can no longer be established.
When does this behaviour occur?
The behaviour occurs when the EtherCAT bus status is switched back to the INIT state while EoE communication is active.
Under certain conditions, in this case, communication fragments remain in the stack and block the transport buffer. As a consequence, it may no longer be possible to establish EoE communication after changing back to PRE-OP or subsequent states.
Which products are affected?
i700 servo inverter, V1
i700 servo inverter, V2
Short-term measures:
Before switching the EtherCAT back to INIT, ensure that there is no EoE communication. I.e. stop EoE communication first and fully process the last request.
Evaluation/recommendations: