PROFIsafe 221
Transitions between states
This table describes the transitions between the FSO module states. The numbering
of the transitions refer to the transitions shown in the state diagrams on page 213.
ID From To Description
1 Start-up Safe (Module
passivation
with a
command)
The FSO module goes to this state directly after
Start-up during a normal start-up.
2 Operational Start-up The FSO module goes to this state by cycling
power of the FSO module or by giving the reset
command via the drive (parameter 96.09 FSO
reboot, see the drive firmware manual).
3 Start-up Safe (Module
passivation)
PROFIsafe watchdog time or PROFIsafe
communication error was detected directly after
Start-up.
4 Safe (Module
passivation)
Start-up The FSO module goes to this state by cycling
power of the FSO module or by giving the reset
command via the drive (parameter 96.09 FSO
reboot, see the drive firmware manual).
5 Start-up Fail-safe Fatal error(s) (CPU test, RAM test, etc. failed)
detected.
6 Fail-safe Start-up The FSO module goes to the Start-up mode by
cycling power of the FSO module or by giving the
reset command via the drive (parameter 96.09
FSO reboot, see the drive firmware manual).
7 Operational Safe (Module
passivation &
reintegration)
Execution of at least one safety function
encountered a problem. The system reaches the
Safe state. As soon as at least one of the errors
can be acknowledged, it can be done locally, via
PROFIsafe, or automatically depending on the
FSO configuration.
8 Safe (Module
passivation &
reintegration)
Operational All the related errors have been solved and
acknowledged.
9 Operational Fail-safe Fatal error(s) (CPU test, RAM test, etc. failed)
detected.
10 Operational Safe (Module
passivation)
PROFIsafe watchdog time or PROFIsafe
communication error was detected.
11 Operational Safe (Module
passivation
with a
command)
Command “activate_FV_C = 1” was sent from the
safety PLC.
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