Omron SYSMAC CS/CJ Series Programming Manual page 60

Basic Concepts
• When a word operand is specified for an instruction, I/O will be refreshed
for the 16 bits that are specified.
• Inputs will be refreshed for input or source operand just before an instruc-
tion is executed.
• Outputs will be refreshed for outputs or destination (D) operands just after
an instruction is execute.
Add an exclamation mark (!) (immediate refresh option) in front of the instruc-
tion.
Units Refreshed for I/O REFRESH Instruction
Location CPU or Expansion I/O Rack (but not SYSMAC BUS Slave Racks)
Units Basic I/O Units
Special I/O Units
Note C200H I/O Units cannot be mounted to CJ-series PLCs.
Top
.
.
.
!LD 000101
.
.
.
!OUT 000209
.
.
.
END
Top
I/O refresh
.
.
.
!MOV 0003
.
0004
.
.
END
I/O refresh
CS/CJ-series Basic I/O
Units
C200H Basic I/O Unit (See
note.)
C200H Group-2 High-den-
sity I/O Units (See note.)
Immediate refresh
Input
CIO 0001
Output
CIO 0002
S
CIO 0003
D
CIO 0004
Cyclic refresh
(batch processing)
All real I/O
Section 2-1
Refreshed
Refreshed
Not refreshed
Not refreshed
15 0
16-bit units
15 0
15 0
16-bit units
15 0
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