Rstat Redundancy Status Function Block; Table 96 Redundancy Status Configuration Parameters - Honeywell HC900 Reference Manual

RSTAT Redundancy Status Function Block

Description
The RSTAT label stands for Redundancy Status . This block is part of the Alarms/Monitors category.
Function
Used with redundant CPUs only, such as C70R. The output pins indicate the lead/reserve status of CPU A
and CPU B. The input can force a failover between CPUs.
Inputs
^FOVER – OFF-to-ON transition causes a manual failover between CPUs if a Reserve CPU is online and
available.
Outputs
A LEAD – ON when CPU A is the Lead, else OFF.
B LEAD – ON when CPU B is the Lead, else OFF.
A RSRV – ON when CPU A is the Reserve, else OFF.
B RSRV – ON when CPU B is the Reserve, else OFF.
Configurable Parameters
Properties Group
Block Order
Revision 11
2/07

Table 96 Redundancy Status configuration parameters

Parameter Index #
N/A
HC900 Hybrid Control Designer Function Block Reference Guide
RSTAT Redundancy Status Function Block
Parameter Description
Execution Order for Block
Function Blocks
Value or
Selection
Read Only. To
change block
order, right-
click on a
Function Block
and select
Execution
Order.
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