Festo CTEU-PB - Communication Status and Transitions

2. Commissioning
2-38
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English
2.7 Communication
After the fieldbus stations are switched on, they all assume
the “waitParam” status and wait for instructions from the
higher-level DP master.
2.7.1 S tatuses when communication is established
waitParam In this status, the bus node waits for parameters of the DP
master.
waitConfig In this status, the bus node waits for the set configuration of
the DP master.
DataEx In this status, the bus node is exchanging data (DataEx-
change) with the DP master. User data and diagnostic inform-
ation can be transmitted thereby.
2.7.2 Status transitions
0
0
2
Power On
Waiting for parameters (waitParam)
Waiting for configuration (waitConfig)
Data exchange (DataEx)
1
4
Application initialization (init)
3
Fig. 2/14: Status transitions (for description see Tab. 2/9)