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Sequence Input Instructions Section 3-3
Coding Example (2)
The AND LOAD instruction can be used repeatedly. In programming method
(2) above, however, the number of AND LOAD instructions becomes one less
than the number of LOAD and LOAD NOT instructions before that.
In method (2), make sure that the total number of LOAD and LOAD NOT
instructions before AND LOAD is not more than eight. To use nine or more,
program using method (1). If there are nine or more with method (2), then a
program error will occur during the program check by the Peripheral Device.
Coding
Second LD: Used for first bit of next block connected in series to previous block.
3-3-8 OR LOAD: OR LD
Purpose Takes a logical OR between logic blocks.
Ladder Symbol
Variations
AND LD ---
.
.
.
.
OUT 000500
Instruction Operand
LD 000000
OR NOT 000001
LD NOT 000002
OR 000003
LD 000004
OR 000005
.
.
.
.
AND LD ---
AND LD ---
.
.
.
.
OUT 000500
Address Instruction Operand
000000 LD 000000
000001 OR 000001
000002 LD 000002
000003 OR NOT 000003
000004 AND LD ---
000005 OUT 000500
Instruction Operand
Logic block
Logic block
Variations Creates ON Each Cycle AND Result is ON OR LD
Immediate Refreshing Specification Not supported.
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