State changes using commands (SFC OSL)
Source/
Target
Command Meaning
X/2 Start Triggers start of processing by changing to "Starting" state.
3/4 Exit Triggers completion of processing by changing to "Complet‐
ing" state.
2/7
3/7
Hold Triggers hold of processing by changing to "Holding" state.
8/9
11/12
Resume Triggers resumption of processing by changing to "Resum‐
ing" or "Resuming (Error)" state.
X/10
4/5
Error Triggers error processing by changing to "Error" or
"Error (Completing)" state.
X/13 Abort Triggers abortion of processing by changing to "Aborting"
state.
X/15 Stop Triggers stop of processing by changing to "Stopping" state.
X/2 Restart Triggers start of processing by changing to "Starting" state.
X/1 Reset Changes to "Idle" state.
6.32.2 Operating state logic for sequencers (sequencer OSL)
Introduction
The sequencer OSL controls processing of sequencers.
The operating state logic of the sequencer is defined by the diagram of state changes for
sequencer OSL.
The sequencer OSL is executed independent of the SFC-OSL when a sequencer is processed.
This means that the sequencer has a state which differs from the SFC state. For example, the
state of the SFC OSL can be "Holding", whereas the state of the sequencer OSL is "Run" -
due to the processing of the sequencer to the "Holding" state. The execution of the sequencer
OSL is of lower priority than the SFC OSL. This means that the state change in the SFC OSL
also results in a status transition in the sequencer OSL.
Operating and monitoring SFCs
6.32 Operating state logic
SFC Visualization (V9.0)
82 Programming and Operating Manual, 05/2017, A5E41356392-AA
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