Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 User Manual

161
Sequence Input Instructions Section 3-3
3-3 Sequence Input Instructions
3-3-1 LOAD: LD
Purpose Indicates a logical start and creates an ON/OFF execution condition based on
the ON/OFF status of the specified operand bit.
Ladder Symbol
Variations
Note Immediate refreshing is not supported by CS1D CPU Units for Duplex-CPU
Systems.
Applicable Program Areas
Operand Specifications
Bus bar
Starting point of block
Variations Restarts Logic and Creates ON Each Cycle
Operand Bit is ON
LD
Restarts Logic and Creates ON Once for
Upward Differentiation
@LD
Restarts Logic and Creates ON Once for
Downward Differentiation
%LD
Immediate Refreshing Specification (See note.) !LD
Combined
Variations
Refreshes Input Bit, Restarts Logic, and
Creates ON Once for Upward Differentiation
(See note.)
!@LD
Refreshes Input Bit, Restarts Logic, and
Creates ON Once for Downward Differentiation
(See note.)
!%LD
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area LD operand bit
CIO Area CIO 000000 to CIO 614315
Work Area W00000 to W51115
Holding Bit Area H00000 to H51115
Auxiliary Bit Area A00000 to A95915
Timer Area T0000 to T4095
Counter Area C0000 to C4095
Task Flag Area TK0000 to TK0031
Condition Flags ER, CY, N, OF, UF, >, =, <, >=, <>, <=, A1, A0
Clock Pulses 0.02 s, 0.1 s, 0.2 s, 1 s, 1 min
TR Area TR0 to TR15
DM Area ---
EM Area without bank ---
EM Area with bank ---
Indirect DM/EM
addresses in binary
---
Indirect DM/EM
addresses in BCD
---
Constants ---

Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Specifications

General

Brand	Omron
Model	SYSMAC CJ - REFERENCE MANUAL 08-2008
Category	Controller
Language	English