Siemens SIMATIC PCS 7 Programming And Operating Manual page 81

Notes on diagram
The SFC OSL contains some state changes that were retained to ensure compatibility with
older projects. These are displayed with dashed blue lines in the diagram.
The numbersin the diagram identify the individual operating states. The operating states are
described in the following table:
Operating states (SFC OSL)
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
The following table describes the transitions between the states (Source State No. / Destination
State No.) as well as their triggers.
X = Possible from several states.
SFC Visualization (V9.0)
Programming and Operating Manual, 05/2017, A5E41356392-AA
States applied from OSL for SFC V5
Events: Commands / Conditions / External Signals / Internal Signals
Event: Error
Implicit transitions that are triggered from SFC, if the active sequencer has been
processed to completion or if there is not sequencer to process.
State
Idle
Starting
Run
Completing
Error (Completing)
Completed
Holding
Held
Resuming
Error
Held (Error)
Resuming (Error)
Aborting
Aborted
Stopping
Stopped
Meaning
Initial state; waiting for Start command.
Start processing after Start command.
Normal processing after completion of the start processing.
Completion of processing after a Complete command or implicit
completion.
Error processing during completion of processing.
Completion of processing is finished; waiting for Reset or Start
command.
Hold processing after Hold command.
Hold processing has completed; waiting for Resume command.
Resume processing after Resume command.
Error processing following error.
Error processing is complete and no more errors are present; wait‐
ing for
Resume command.
Resume processing after Resume command.
Abort processing after Abort command.
Abort processing is complete; waiting for Reset
or Start command.
Stop processing after Stop command.
Stop processing is complete; waiting for Reset command.
Operating and monitoring SFCs
6.32 Operating state logic
81