Sequence Input Instructions; Load: Ld - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Sequence Input Instructions

3-3 Sequence Input Instructions
3-3-1

LOAD: LD

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