1. Falling edge pulse PLF
1. Falling edge pulse PLF
1.1. Instruction Description
When the result before executing this instruction has a falling edge from ON to OFF, a pulse occurs (only the current scanning cycle is set to ON).
1.2. The valid operands of the instruction
| Input/Output | Data Type | operand | Description |
|---|---|---|---|
| OUT | ON/OFF | Y/M/S, word to Bit(D/V/Z), Local variable(LB) | output |
1.3. Example
Instruction table:
NETWORK 000
LD X000
PLF Y000 //Y000 undergoes a pulse change during the falling edge, with a period equal to the current scanning period
图1 PLF