Omron SYSMAC CV Series

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Again, with the second method, a maximum of eight blocks can be combined.

There is no limit to the number of blocks that can be combined with the first meth-

od.

The following diagram requires OR LOAD instructions to be converted to mne-

monic code because three pairs of conditions in series lie in parallel to each oth-

er.

0000

0005

00000 LD 000000

00001 AND NOT 000001

00002 LD NOT 000002

00003 AND NOT 000003

00004 LD 000004

00005 AND 000005

00006 OR LD —

00007 OR LD —

00008 OUT 000501

Address Instruction Operands

00000 LD 000000

00001 AND NOT 000001

00002 LD NOT 000002

00003 AND NOT 000003

00004 OR LD —

00005 LD 000004

00006 AND 000005

00007 OR LD —

00008 OUT 000501

The first of each pair of conditions is converted to LOAD with the assigned bit

operand and then ANDed with the other condition. The first two blocks can be

coded first, followed by OR LOAD, the last block, and another OR LOAD, or the

three blocks can be coded first followed by two OR LOADs. The mnemonic code

for both methods is shown to the right of the ladder diagram.

Again, with the second method, a maximum of eight blocks can be combined.

There is no limit to the number of blocks that can be combined with the first meth-

od.

Both of the coding methods described above can also be used when using AND

LOAD and OR LOAD, as long as the number of blocks being combined does not

exceed eight.

The following diagram contains only two logic blocks as shown. It is not neces-

sary to further separate block b components, because it can be coded directly

using only AND and OR.

Block

Address Instruction

00000 LD 000000

00001 AND NOT 000001

00002 LD 000002

00003 AND 000003

00004 OR 000201

00005 OR 000004

00006 AND LD —

00007 OUT 000501

0000

0005

0000

0002

0000

Operands

Combining AND LOAD and

OR LOAD

Mnemonic Code Section 4-4

Omron SYSMAC CV Series - Page 95

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