Siemens Simatic PCS7 Function Manual page 130

Operator control and monitoring
6.10 Maintenance status of redundant components
Maintenance status
Redundant component
Maintenance alarm
Maintenance alarm
Maintenance alarm
Maintenance alarm
Good
Unknown/untested
Component passivated
Out of service
At least one process value is being simulated At least one process value is
Local operation
Maintenance required
Maintenance demanded
Maintenance alarm
Unknown/untested
Configuration change
Unknown/untested
Component passivated
Out of service
At least one process value is being simulated At least one process value is
Local operation
Maintenance required
Maintenance demanded
130
Component A
Maintenance required
Maintenance demanded
Maintenance alarm
Configuration change
Good
Unknown/untested
Component passivated
Out of service
being simulated
Local operation
Maintenance required
Maintenance demanded
Maintenance alarm
Configuration change
Good
Unknown/untested
Component passivated
Out of service
being simulated
Local operation
Maintenance required
Maintenance demanded
Function Manual, 03/2016, A5E36187641-AA
Component B
Maintenance alarm
Maintenance alarm
Maintenance alarm
Maintenance alarm
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Unknown/untested
Configuration change
Configuration change
Configuration change
Configuration change
Configuration change
Configuration change
Configuration change
Configuration change
Maintenance Station