Delta Electronics VFD037CB43A-20 [297/363] The edition of plc ladder diagram

Chapter 14 PLC Function |C200 Series

14-12

Block in parallel ORB none

Multiple output

MPS

MRD

MPP

none

Output command of coil

drive

OUT Y, M

Basic command,

Application command

Basic command/

Application

command

Inverse logic INV none

14.4.3 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

X11 X12 X13

X6 X7 X10 C0 C1

00000

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 Y1 X4

TMR T0 K10

The explanation of command order:

1 LD X0

2 OR M0

3 AND X1

4 LD X3