Omron CS1G/H-CPUxxH Instructions Manual page 174

Sequence Input Instructions
Precautions
Example
3-3-7 AND LOAD: AND LD
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Description
Immediate refresh (!) can be specified for OR NOT. An immediate refresh
instruction updates the status of the input bit just before the instruction is exe-
cuted from a Basic Input Unit (but not Basic Input Units on Slave Racks or for
C200H Group 2 Multi-point Input Units).
Instruction
LD
AND
AND
OR
AND
LD
AND
OR NOT
AND LD
OUT
Takes a logical AND between logic blocks.
Logic block
Variations Creates ON Each Cycle AND Result is ON
Immediate Refreshing Specification
Block program areas
OK OK
AND LD connects in series the logic block just before this instruction with
another logic block.
LD
Logic block A
to
LD
Logic block B
to
AND LD
Serial connection between logic block A and logic block B.
The logic block consists of all the instructions from a LOAD or LOAD NOT
instruction until just before the next LOAD or LOAD NOT instruction on the
same rungs.
Operand
000000
000001
000002
000003
000004
000005
000006
000007
---
000008
Logic block
Step program areas Subroutines
OK
Section 3-3
AND LD
Not supported.
Interrupt tasks
OK
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