Delta Electronics VFD-E Rising-edge/falling-edge Output Commands, End Command, Mnemonic Function

Appendix D How to Use PLC Function

D.5.6 Rising-edge/falling-edge Output Commands

Commands	Function
PLS	Rising-edge output
PLF	Falling-edge output

D.5.7 End Command

Command	Function
END	Program end

D.5.8 Explanation for the Commands

Operands

Y, M

Y, M

Operands

none

Mnemonic			Function
LD			Load A contact
Operand	X0~X17	Y0~Y17	M0~M159	T0~15	C0~C7	D0~D29
	9	9	9	9	9	--

Explanations:

The LD command is used on the A contact that has its start from the left BUS or the A contact that is the start of a contact circuit. Function of the command is to save present contents, and at the same time, save the acquired contact status into the accumulative register.

Program Example:

Ladder diagram

Command code

Operation

LD

X0

Load contact A of X0

X0

X1

Y1

AND

X1

Connect to contact A of X1

in series

OUT

Y1

Drive Y1 coil

Mnemonic

Function

LDI

Load B contact

Operand

X0~X17

Y0~Y17

M0~M159

T0~15

C0~C7

D0~D29

9

9

9

9

9

--

D-30 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11