values which are issued or delivered instead of process values when the safety function is set to a fail-safe state
NOTE 1 to entry: In this part, the fail-safe substitute values (FSV) are always set to binary "0".
values which are issued or delivered instead of process values when the safety function is set to a fail-safe state
NOTE 1 to entry: In this part, the fail-safe substitute values (FSV) are always set to binary "0".