Lenze EtherCAT control technology - Manual (Page 31)

DMS 3.1 EN 01/2011 TD17
L
31
Control technology | EtherCAT communication manual
The Lenze control system with EtherCAT
Interaction of the components
Explanation of the transitions during system start
While a state is passed through, different tests are carried out (e.g. it is tested whether the
physical topology complies with the configuration). If the tests are successful, the system
automatically changes to the next state.
Detailed information about the possible bus states and the required commissioning steps
can be found here:
 Commissioning of the system
( 42)
Status What happens? What is tested?
PLC EtherCAT
Origin Unknown The system starts. Is a master XML file available?
Origin Init EtherCAT is initialised.
Master XML file is imported.
Bus scan is executed
Does the imported master XML
comply with the result of the bus
scan?
Origin Pre-Operational EtherCAT is active.
SDO communication is possible.
Is an executable boot project
available?
Running Safe-Operational The PLC program is being loaded.
The PLC is running.
The inputs are transferred, the
outputs are still in a safe state.
Are all inputs ok and initialised?
Running Operational The system is running.