Creating Ladder Programs; I/O Wiring And Internal Operation; Clearing Programs - Omron ZEN Operation Manual

Creating Ladder Programs

3-3

Creating Ladder Programs

Example Program
SW1 SW2
Ry
3-3-1

I/O Wiring and Internal Operation

Power supply
terminals
L
N
Ladder
program
Output terminals
3-3-2

Clearing Programs

60
Ry
L
SW1 SW2
N
Input terminals
I1 I2
I0
(1) (2)
I0 I1
Q0
(3)
Q0 Q1
Load
This section explains how to write ladder
programs, based on a simple circuit
example.
Refer to the ZEN-SOFT01-V4 ZEN Support
Software Operation Manual (Z184) for
information on programming LED-type CPU
Units.
Connect switches SW1 and SW2
between N and input terminals I0
and I1.
I3
When SW1, connected to input bit
I0, turns ON or OFF, I0 (indicated
by (1) in the diagram) turns ON or
OFF.
When SW2, connected to input bit
Q0
I1, turns ON or OFF, I1 (indicated
by (2) in the diagram) turns ON or
OFF.
If the ladder program is executed
in RUN mode and SW1 turns ON,
input bit I0 turns ON, output bit Q0
turns ON, and the output contact
(indicated by (3) in the diagram)
turns ON.
When the output contact (3) turns
ON, the load connected to output
terminal Q0 turns ON.
Clear the ladder program before starting to
write a program. By performing the Delete
Program operation, the ladder program will
be completely cleared. The display
language, date/time settings, and all other
settings will not be initialized.
Section 3-3