User Manual

Control concept
Superposed plant controls
5
CM110664en_07 79 | 353
The set time (delay or timeout) marks a switch on or off sequence that may
consist of one or more objects. The times apply for the entire sequence and
take effect, when a switch on or step up command or a switch off or ramp down
command is demanded.
Switch on occurs in parallel per sequence. A check of the switch on state
occurs only in the switch on type timeout. The next sequence is only started
after either all monitored objects report a switched on state or the timeout
period expires. Operating state monitoring of the objects for monitoring, as
depicted in the following figure, only become active after the step-up process
for a sequence is completed.
Operating status monitoring is optional and monitors only blocks in a Switched
on state. If a referenced block is found to be switched off during active
operating state monitoring, but that the block should have been in the state
02:00
01:00
00:30
1 2 3 4 5 6 7 8
Timeout 0:30
Timeout 2:00
4 5
8
00:30 01:00 02:00
Object nr.
State monitoring
Switch-on mode
Switch-on delay
Switch-off mode
Operating states
Stage X
Priority
None None None
None
Delayed
Delayed
Delayed
Delayed
On On On
Not cmd
On On
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Switch-on 2
Switch-on 1
Switch-on 3
Switch-on 7Switch-on 6
(Off)
Sequence 1Sequence 2Sequence 3
Sequence 2 has no active switch-on command
in stage X, and is therefore skipped.
Objects 6 and 7 are switched on in parallel.
The state monitoring mechanism waits
max. 2 minutes for objects 6 and 7 to
transmit an On signal.
Object 8 is inactive in stage X.
Sequence 1
Sequence 2
Sequence 3
Objects 1, 2 and 3 are switched on in parallel.
As soon as 1 and 3 transmit an On signal
or the 30 sec. timeout expires,
the transition to the next sequence starts.
02:00
01:00
00:30
1 2 3 4 5 6 7 8
00:30 01:00
02:00
Object nr.
State monitoring
Switch-on mode
Switch-on delay
Switch-off mode
Operating states
Stage X
Priority
None None None
None
Delayed
Delayed
Delayed
Delayed
On On On
Not cmd
On On
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Spec. cmd
Sequence 1
Sequence 2
Sequence 3
Switch-on control of objects:
Check if switch-on time reached
Sequence 1
Switch-on procedure
completed:
Stae monitoring active
Object switch-on:
No check if switch-on
state reached
Switch-on procedure completed:
State monitoring active
Object switch-on:
Check if switch-on
state reached
Sequence 2
Sequence 3
Switch-on procedure completed: State monitoring active