Chapter 8 Boolean instructions
150 Rockwell Automation Publication 2080-RM001D-EN-E - February 2015
F_TRIG detects a falling edge of a Boolean variable.
Arguments
Parameter
Parameter
type
Data type Description
CLK Input BOOL Any Boolean variable.
Q Output BOOL TRUE when CLK changes from TRUE to FALSE.
FALSE in all other cases.
F_TRIG function block language examples
Function Block Diagram (FBD)
Ladder Diagram (LD)
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