Delta DVP-ES2 - Manual (Page 383)

3 . I n s t r u c t i o n S e t
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API Mnemonic Operands Function
99 PLF Falling-edge output
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices Word devices Program Steps Type
OP X Y M S K H KnX KnY KnM KnS T C D E F
S * *
PLF: 3 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S: Falling pulse output device
Explanations:
When X0 goes from ON to OFF (Falling-edge trigger), PLS instruction executes and S generates a
cycle pulse for one operation cycle.
Program Example:
Ladder Diagram:
X0
M0 PLF
M0
Y0 SET
Timing Diagram:
A scan cycle
X0
M0
Y0
Instruction Code: Operation:
LD X0 ; Load NO contact X0
PLF M0 ; M0 falling-edge output
LD M0 ; Load NO contact M0
SET Y0 ; Y0 latched (ON)