Load Not: Ld Not - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Sequence Input Instructions
Example
3-3-2

LOAD NOT: LD NOT

Purpose
Ladder Symbol
Variations
Note
Instruction Operand
LD 000000
LD 000001
LD 000002
AND 000003
OR LD ---
AND LD ---
LD NOT 000004
AND 000005
OR LD ---
OUT 000100
Indicates a logical start and creates an ON/OFF execution condition based on
the reverse of the ON/OFF status of the specified operand bit.
Bus bar
Variations Restarts Logic and Creates ON Each Cycle Operand
Bit is OFF
Restarts Logic and Creates ON Once for Upward
Differentiation (See note 1.)
Restarts Logic and Creates ON Once for Downward
Differentiation (See note 1.)
Immediate Refreshing Specification (See note 2.)
Combined Refreshes Input Bit, Restarts Logic, and Creates ON
Variations Once for Upward Differentiation (See note 3.)
Refreshes Input Bit, Restarts Logic, and Creates ON
Once for Downward Differentiation (See note 3.)
1. The following variations are supported by only the CS1-H, CJ1-H, CJ1M,
or CS1D CPU Units: @LD NOT, %LD NOT, !@LD NOT, and !%LD NOT.
2. Immediate refreshing is not supported by CS1D CPU Units for Duplex-
CPU Systems.
3. Combined variations are supported by CS1D CPU Units for Single-CPU
Systems and CS1-H, CJ1-H, and CJ1M CPU Units only.
AND LD
OR LD
Starting point of block
Section 3-3
OR LD
LD NOT
@LD NOT
%LD NOT
!LD NOT
!@LD NOT
!%LD NOT
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