User Manual

Automation stations
Operating states
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● BACnet communication with Desigo CC and PXM20: ReadProperty, WriteProperty, Who-Has, COVs,
EventNotification, AcknowledgeAlarm GetEventInformation.
● COVs: For values changed by the program and operator
● Alarming: Alarm monitoring active, notification of alarms and events, GetEventInformation and
AcknowledgeAlarm
● Primary server in the RUN state: Primary server is active, that is, life check, time synchronization and
replication of global objects
● Backup server in RUN state: The backup server is active, that is, time synchronization and replication of
global objects by primary server. The backup server does not accept changes of global objects by a
client.
COMA
● I/O scan not active
● Communication with XWP not active
● BACnet communication not active
● Wiring test not possible
● D-MAP program processing stopped
Transitions
1 Power failure
Power failure
2 Power restoration STOP
Power restoration. Operating state before power failure was STOP.
Actions (cold start response):
● Cold start I/O scan: Default values for output modules
● Cold-start variable function blocks: Volatile variables are initialized with initial value. Non-volatile
variables retain their last value.
The STOP state is reached when the I/O scan is finished.
3 Power restoration RUN
Power restoration. Operational status before power failure was RUN.
Actions (cold start response):
● Cold start I/O scan: Default values for output modules
● Cold-start variable function blocks: Volatile variables are initialized with initial value. Non-volatile
variables retain their last value.
● System event: Power restoration.
D-MAP processing starts when the first I/O scan is finished.
4 RUN Cmd
Explicit command via dialog in XWP or BACnet (DeviceObject, Out of service property [OoServ])
Actions (warm start action):
● Implicit warm start I/O scan: I/O scan continues to run
● Implicit warm-start variables function blocks: All variables retain their last value
● System event: Change to operating state
D-MAP processing starts.
5 STOP Cmd
Explicit command via dialog in XWP or BACnet (DeviceObject, Out of service property [OoServ])
Actions:
● System Event: Change to operating state
● Stop D-MAP processing at the end of current cycle
I/O scan continues.
6 Restart
Restart of the automation station due to software error.
Actions (cold start response):