Delta Electronics VFD-E manual Edition of PLC Ladder Diagram, Mps, Mrd, Mpp, Out

Appendix D How to Use PLC Function

Ladder Diagram Structure	Explanation	Command	Equipment
		MPS
	Multiple output	MRD	none
		MPP
	Output command of coil drive	OUT	Y, M, S
			Please refer to
	Basic command, Application	Application	basic command
	command	command	and application
			command
	Inverse logic	INV	none

D.3.3 The Edition of PLC Ladder Diagram

The program edited method is from left power line to right power line. (the right power line will be omitted during the edited of WPLSoft.) After editing a row, go to editing the next row. The maximum contacts in a row are 11 contacts. If you need more than 11 contacts, you could have the new row and start with continuous line to continue more input devices. The continuous number will be produced automatically and the same input point can be used repeatedly. The drawing is shown as follows.

X0 X1 X2 X3 X4 X5 X6 X7 X10 C0 C1

00000 X11 X12 X13

00000 Y0

Row Number

The operation of ladder diagram is to scan from left upper corner to right lower corner. The output handling, including the operation frame of coil and application command, at the most right side in ladder diagram.

Take the following diagram for example; we analyze the process step by step. The number at the right corner is the explanation order.

X0 X1

M0

X3 M1

Y1 X4

T0 M3

Y1

TMR T0 K10

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