Or Load: Or Ld - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Sequence Input Instructions
3-3-8

OR LOAD: OR LD

Purpose
Ladder Symbol
Variations
174
Instruction
AND LD
.
.
OUT
Coding Example (2)
Instruction
LD
OR NOT
LD NOT
OR
LD
OR
.
.
AND LD
AND LD
.
.
OUT
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
Address
000000
000001
000002
000003
000004
000005
Second LD: Used for first bit of next block connected in series to previous block.
Takes a logical OR between logic blocks.
Logic block
Logic block
Variations Creates ON Each Cycle AND Result is ON
Immediate Refreshing Specification
Operand
---
.
.
000500
Operand
000000
000001
000002
000003
000004
000005
.
.
---
---
.
.
000500
Instruction
LD
OR
LD
OR NOT
AND LD
OUT
Section 3-3
Operand
000000
000001
000002
000003
---
000500
OR LD
Not supported.