Siemens SIMATIC PCS 7 Function Manual page 191

● Following a prompt from the user program via an acknowledgement signal, for example,
on an OS with a "Depassivation" button at the block
● After pulling/plugging a module
● Following a diagnostic interrupt (e.g. wire break, measured value)
Additional information
● Online Help for
● Manual
● Manual
Fault-tolerant Process Control Systems (V8.1)
Function Manual, 11/2014, A5E34878832-AA
Failure, Switchover and Return of Fault-tolerant Components
STEP 7
Automation System S7-400H; Fault-tolerant Systems
Process Control System PCS 7; PCS 7 OS Process Control
6.1 I/O
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