Delta AH500 - Page 197

AH500 Programming Manual
5-18
Instruction code Operand Function
PLF
D
Falling-edge output
Device
DX DY X Y M SM S T C HC D L PR
D
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Symbol:
PLF
D
：
Specified device Bit
Explanation:
1. When the conditional contact is switched from ON to OFF, the instruction PLF is executed, and
the device D sends out a pulse for a scan cycle.
2. Please do not use the instruction PLS in the function block.
Example:
When X0.0 is ON, M0 is ON for a pulse time. When M0 is ON, Y0.0 is set to ON.
Timing chart:
X0.0
M0
Y0.0
One scan cycle