Special I/O Area Function And Read/Write Area Allocation - Omron DeviceNet CV Series Operation Manual

C200H I/O Link Units
6-1-7

Special I/O Area Function and Read/Write Area Allocation

Special I/O Area Words
and Configuration
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The C200H I/O Link Unit allows data from any area in the CPU Unit of the
PLC to be read or written from the Master Unit, depending on the Special I/O
Area settings. In order for the C200H I/O Link Unit and the Master to operate
together, the Read/Write Area on the C200H I/O Link Unit and the allocated
words on the Master are linked, as illustrated in the following diagram.
Master
Slave
C200H I/O Link Unit
Note When using the Read Area only, set the size of the Write Area to zero bytes.
Similarly, if using the Write Area only, then set the size of the Read Area to
zero bytes.
Words are allocated in the PLC's Special I/O Area according to the Unit num-
ber, as illustrated in the following table.
Unit number
0 IR 100 to IR 109
1 IR 110 to IR 119
2 IR 120 to IR 129
3 IR 130 to IR 139
4 IR 140 to IR 149
5 IR 150 to IR 159
6 IR 160 to IR 169
7 IR 170 to IR 179
8 IR 180 to IR 189
9 IR 190 to IR 199
A IR 400 to IR 409
B IR 410 to IR 419
C IR 420 to IR 429
D IR 430 to IR 439
E IR 440 to IR 449
F IR 450 to IR 459
In the C200H I/O Link Unit, the Special I/O Area is used as illustrated below.
+ 0 words
+ 1 to 4 words
+ 5 words
+ 6 to 9 words
IN Area OUT Area
Read Area Write Area
Special I/O Area words
C200HX/HG/HE (-Z)
CIO 2000 to CIO 2009
CIO 2010 to CIO 2019
CIO 2020 to CIO 2029
CIO 2030 to CIO 2039
CIO 2040 to CIO 2049
CIO 2050 to CIO 2059
CIO 2060 to CIO 2069
CIO 2070 to CIO 2079
CIO 2080 to CIO 2089
CIO 2090 to CIO 2099
CIO 2100 to CIO 2109
CIO 2110 to CIO 2119
CIO 2120 to CIO 2129
CIO 2130 to CIO 2139
CIO 2140 to CIO 2149
CIO 2150 to CIO 2159
Bit 15
Software switches
Read/Write Setting Area
Status
Read/Write Reference Area
Section 6-1
CS1H/G
Bit 0
235