How do you read out the operating state and status of an H system?
Function block "H_STATUS" permits output of the operating modes "RUN/STOP" and the "Master/Reserve" status of an H system.
Overview of functions
- Display operating state (RUN/STOP) of the CPU in Rack 0 and Rack 1
- Display the status (Master/Reserve) of the CPU in Rack 0 and Rack 1
- Report loss of redundancy in the H system
The block is called cyclically in a time interrupt OB (OB 35) and acyclically in the corresponding alarm OBs. The necessary information on system function SFC51 RDSYSST is read out of the system status list (SSL) ID W#16#xy71 and made available at the block outputs. When a CPU of the H system fails, a corresponding message is issued.
More information and details are available in the block description.
description_H_STATUS.pdf ( 34 KB )
Block as library file:
H_STATUS.zip ( 133 KB )