Omron DRT1 Series - Special I;O Area Function and Read;Write Area Allocation

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C200H I/O Link Units Section 6-1
6-1-7 Special I/O Area Function and Read/Write Area Allocation
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.
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.
Special I/O Area Words
and Configuration
Words are allocated in the PLC’s Special I/O Area according to the Unit num-
ber, as illustrated in the following table.
In the C200H I/O Link Unit, the Special I/O Area is used as illustrated below.
Master
IN Area OUT Area
Slave
Read Area Write Area
C200H I/O Link Unit
Unit number Special I/O Area words
C200HX/HG/HE (-Z) CS1H/G
0 IR 100 to IR 109 CIO 2000 to CIO 2009
1 IR 110 to IR 119 CIO 2010 to CIO 2019
2 IR 120 to IR 129 CIO 2020 to CIO 2029
3 IR 130 to IR 139 CIO 2030 to CIO 2039
4 IR 140 to IR 149 CIO 2040 to CIO 2049
5 IR 150 to IR 159 CIO 2050 to CIO 2059
6 IR 160 to IR 169 CIO 2060 to CIO 2069
7 IR 170 to IR 179 CIO 2070 to CIO 2079
8 IR 180 to IR 189 CIO 2080 to CIO 2089
9 IR 190 to IR 199 CIO 2090 to CIO 2099
A IR 400 to IR 409 CIO 2100 to CIO 2109
B IR 410 to IR 419 CIO 2110 to CIO 2119
C IR 420 to IR 429 CIO 2120 to CIO 2129
D IR 430 to IR 439 CIO 2130 to CIO 2139
E IR 440 to IR 449 CIO 2140 to CIO 2149
F IR 450 to IR 459 CIO 2150 to CIO 2159
Bit 15
Software switches
Bit 0
Read/Write Setting Area
Read/Write Reference Area
Status
+ 0 words
+ 1 to 4 words
+ 5 words
+ 6 to 9 words