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Command Reference: Logic Functions Section 6-4
The ON status is maintained in the function block, so the Output Enable signal
stays ON even if the input condition goes from ON to OFF.
The signal maintained in the function block is turned OFF when the function
block’s RESET condition is turned ON.
Fault Present Output Setting
A Fault Present output can also be used in programming.
To enable this output, select the Fault Present checkbox on the Out Point Tab
Page of the function block properties dialog box.
Maximum Number of I/O points for an RS-FF Function Block
Error Handling and Error Resetting
Timing Table
Output Enabl
Input
RESET
Fault Present
Error condition Behavior for error detection Resetting the error condition
Output Enable Fault Present
Input and
RESET are
active simulta-
neously.
OFF
(safety state)
ON Make one of the signals inactive.
Input
RESET
Output
Enable
FaultPresent
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