Delta AH500 Programming Manual page 197

AH5 00 Prog ram m ing M an ua l
Instruction code
PLF
Device DX DY
●
D
Symbol:
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
One scan c ycle
M0
Y0 .0
5 - 1 8
Operand
D
X Y M SM
● ● ● ●
D ： Specified device
PLF
Function
Falling-edge output
S T C HC
● ● ● ●
Bit
D L PR
● ● ●