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34
IR/CIO Area Allocations
Section 3-1
n + 3
00 to
11
No. of Trans-
fer Words
Number of words transferred when ASCII
Unit PC READ/PC WRITE command is
executed (1 to 255).
Data is written via the MOV instruction from
the user program in the CPU Unit. If the
Write Bit is ON, the data will be transmitted
by the ASCII Unit’s PC READ/PC WRITE
command at the next I/O refresh period.
12 to
15
Transfer Data
Area
The memory area for ASCII Unit PC
READ/PC WRITE commands is set using
the following codes.
No.
Data area
C200HX/HG/HE,
C200H, C200HS
CS1 Series
0
DM Area
1
IR Area
CIO Area
2
LR Area
Data Link Area
3
HR Area
H000 to H099 in
Holding Area
4
AR Area
H100 to H127 in
Holding Area
5
EM Area bank 0
6
TC Area
Timer Area
n + 4
00 to
15
First Transfer
Word
(address)
First word transferred from the CPU Unit
memory address when the ASCII Unit’s PC
READ/PC WRITE command is executed.
Word
Bit
Name
Function
Use
Summary of Contents for C200H-ASC11
Page 1: ...C200H ASC11 ASC21 ASC31 ASCII Units Operation Manual Revised June 2000...
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