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 value FALSE (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: 

1. 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.

2. After the error has been fixed, the application must be re-loaded. Alternative: Restart Neuron RTS max.