Omron CP - PROGRAMMING MANUAL 05-2007 - Page 62

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Programming Concepts Section 1-1
Series/Parallel Rungs
• Separate the rung into A and B blocks, and program each individually.
• Connect A and B blocks with an AND LD.
• Program A block.
• Program B
1
block and then program B
2
block.
• Connect B
1
and B
2
blocks with an OR LD and then A and B blocks with an
AND LD.
Example of Series
Connection in a
Series Rung
• Program A
1
block, program A
2
block, and then connect A
1
and A
2
blocks
with an OR LD.
• Program B
1
and B
2
the same way.
• Connect A block and B block with an AND LD.
0.010.00 0.030.02
102.01
102.01
a b
a
b
0.04
LD
0.01
LD
AND
OR
OR
AND LD ---
OUT
AND NOT
0.00
0.02
0.03
102.01
0.04
102.01
Instruction Operands
A block
B block
0.00 0.01 0.02
102.02
102.02
a b
a
0.03
0.04
b
2
b
1
b
1
b
2
b
1
+ b
2
a · b
0.00
AND
LD
0.03
0.04
AND
OR LD ---
AND LD ---
OUT
LD NOT
AND NOT
LD NOT
0.01
0.02
102.02
102.02
Instruction Operands
B1 block
B2 block
B block
A block
0.010.00 0.04
0.07
102.03
a b
a
1
a
1
b
1
a
2
b
2
b
1
+ b
2
a · b
0.030.02
0.05
0.06
a
2
b
2
b
1
a
1
+ a
2
LD
0.01
0.02
AND
OR LD ---
LD
AND
LD
AND
OR LD ---
AND LD ---
OUT
Instruction Operands
0.00
0.03
0.04
0.05
0.06
0.07
102.03
AND NOT
LD NOT
A block B block
A2 block B2 block
B1 block
A1 block