Problems when using EtherCAT field buses
Symptom: The Neuron Power Engineer application in which you are accessing the hardware IOs via EC-Engineer is returning one of the following errors:
-
The
ECM_ACONTIS_ISCONNECTED
block returns the valueFALSE
(or an equivalent). -
The
ECM_ACONTIS_CONNECTED_SLAVES
block does not return the expected value.
Possible cause: When Neuron RTS max has been started, the EtherCAT bus scan has failed (e.g. because of a power loss at a slave).
Workaround:
-
Access the EtherCAT bus using a diagnostic too (e.g. →EC-Engineer). Even if EC-Engineer is available on the same PC, always perform a remote diagnosis on port 6000.
-
After the error has been fixed, the application must be re-loaded. Alternative: Restart Neuron RTS max.