Maintenance Status Of Redundant Components - Siemens Simatic PCS7 Function Manual

Operator control and monitoring

6.10 Maintenance status of redundant components

The table shows the basic structure of the variable.
Bit
0 to 7
8 to 15
16
17
18
19 to 21
22
23
24 to 27
28 to 31
6.10 Maintenance status of redundant components
Introduction
In the faceplate header and in the block icon, the maintenance status of both components is
displayed in one diagnostic icon for the redundant pair.
The maintenance status for this diagnostic icon is formed from the maintenance states of both
components.
Forming the maintenance status with redundant components
The table below lists the maintenance states that are formed because of this rule.
Maintenance status
Redundant component
Good
Good
Good
Maintenance demanded
Good
Local operation
Maintenance required
126
Explanation
Display of the maintenance state
Display of the maintenance state of the redundant partner
"1"= Redundant partner available
"0" = Primary partner is master
"1" = Redundant partner is master
SIMATIC PDM maintenance state worse than device status
Reserve
SIMATIC PDM has detected a state change
Block takes part in the cyclical updating of SIMATIC PDM
OS operation
SIMATIC PDM maintenance state
Component A
Good
Unknown/untested
Component passivated
Out of service
At least one process value is
being simulated
Local operation
Maintenance required
Function Manual, 03/2016, A5E36187641-AA
Component B
Good
Good
Good
Good
Good
Good
Good
Maintenance Station