Omron CS1G/H-CPUxx-EV1 Programming Manual page 88

Basic Concepts
0000 0000
00 01
0000 0000
02 03
0000 0000
04 05
0000 0000
06 07
b
Block
0000 0000
00 01
a
Block
0000
03
c
Block
The above rung can be rewritten as follows:
0000 0000
00 01
0000 0000
00 03
0000 0000
00 03
52
4. Complex Rungs
0002 Instruction Operand
04
LD
LD
LD
AND
OR LD
AND LD
LD
AND
OR LD
LD
AND
OR LD
OUT
0000
02
d
Block
0000 0000
05
04
0000 0000
06 07
e
Block
0000 0002
02
0000 0000
04 05
0000 0000 0000
04 06 07
000000
000001
000002
Z
000003
---
The diagram above is based on the diagram below.
---
000004
000005
---
A simpler program can be written by rewriting
000006
this as shown below.
000007
---
000204
Instruction Operand
0002 LD
000000
04
LD NOT
000001
AND 000002
LD
000003
AND NOT 000004
LD
000005
LD
000006
AND NOT
000007
OR LD ---
AND LD ---
OR LD ---
AND LD ---
OUT
000205
05
Section 2-1
0000 0000
00 01
0000 0000
02 03
Z
0000
00 Z
0000 0000 0000
02 03 00
0000
01
a
b
c
d
e
d + e
(d + e) · c
(d + e) · c + b
((d + e) · c + b) · a