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967
Basic I/O Unit Instructions
Section 3-23
Example
In this example, IORD(222) is used to read data.
3-23-11 INTELLIGENT I/O WRITE: IOWR(223)
Purpose
Outputs the contents of the CPU Unit’s I/O memory area to a Special I/O Unit
or CPU Bus Unit (see note).
Note There are restrictions in functionality for CPU Bus Units. Refer to Restrictions
later in this section.
Ladder Symbol
Variations
Applicable Program Areas
Operands
C:
Depends on Special I/O Unit or CPU Bus Unit.
D:
Special I/O Unit:
0000 to 005F hex
(to specify unit numbers 0 to 95)
CPU Bus Unit:
8000 to 800F hex
(to specify unit numbers 0 to F hex)
S+1
S
S
CPU Unit
Special I/O Unit (Unit #3)
10 words
The control code (C) varies depending on the Special I/O Unit.
Number of words
to transfer: 10
Unit number: 3
When CIO 000000 is turned ON, 10 words are read from the Special
I/O Unit with unit number 3, and are stored in D00100 to D00109.
IOWR(223)
C
S
D
C
: Control data
S
: Transfer source and number of words
D
: Transfer destination and number of words
Variations
Executed Each Cycle for ON Condition
IOWR(223)
Executed Once for Upward Differentiation
@IOWR(223)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Not supported.
Block program areas
Step program areas
Subroutines
Interrupt tasks
OK
OK
OK
OK
Summary of Contents for SYSMAC CS Series
Page 2: ......
Page 4: ...iv ...
Page 30: ...xxx ...
Page 186: ...146 List of Instructions by Function Code Section 2 4 ...
Page 1320: ...1280 Model Conversion Instructions Unit Ver 3 0 or Later Section 3 35 ...
Page 1390: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...
Page 1391: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits ...
Page 1392: ...1352 ASCII Code Table Appendix A ...
Page 1404: ...1364 Revision History ...