Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Ldf

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

API	Mnemonic	Operands	Function	Controllers
91	LDF		Falling–edge detection operation	ES2/EX2	SS2	SA2 SX2
						SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K

H KnX KnY KnM KnS T

C

D

E

F LDF: 3 steps

S

*

*

*

*

*

*

PULSE

16-bit

32-bit

SA2

SA2

SA2

ES2/EX2 SS2 SE

SX2 ES2/EX2 SS2

SE

SX2 ES2/EX2 SS2

SE

SX2

Operands:

S: device to be falling pulse triggered

Explanations:

LDF should be connected to the left side bus line. When the associated device S is driven from ON to OFF, LDF will be ON for one scan cycle.

Program Example:

Ladder Diagram:

	X0	X1		Y1
Instruction Code:				Operation:
LDF			X0	; Load falling-edge contact X0
AND			X1	; Connect NO contact X1 in series.
OUT			Y1	; Drive Y1 coil

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