Redundancy Status
You can determine if your system is operating with redundancy by using the Redundancy Status bit (S:R) in standard or safety task logic. The bit can monitor the system while the controller is in Run or Test mode.
S:R Bit Status | Redundancy Status |
|---|---|
On (1) | The system is operating with redundancy. |
Off (0) | The system operating without redundancy. |
IMPORTANT:
When the S:R bit turns Off in a safety task that supports a SIL 3 safety function, you must repair the system within your specified mean repair time (MRT). If the system is not repaired within the MRT, you must take a specified action to maintain or achieve a safe state.
Redundancy Status Bit
Provide Feedback