CS1D-BC042D Omron, CS1D-BC042D Datasheet - Page 306

• Manufacturer Part Number: CS1D-BC042D
• Description: CS1D Dual CPU Exp
• Manufacturer: Omron

Specifications of CS1D-BC042D

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Special I/O Unit Area
8-8
Special I/O Unit Area
If the IOM Hold BIt (A50012) is ON and the PLC Setup’s “IOM Hold Bit Status
at Startup” setting is set to protect the IOM Hold Bit, the contents of the Inner
Board Area won’t be cleared when the PLC’s power supply is cycled.
The Special I/O Unit Area contains 960 words with addresses ranging from
CIO 2000 to CIO 2959. Words in the Special I/O Unit Area are allocated to
CS-series Special I/O Units to transfer data such as the operating status of
the Unit. Each Unit is allocated 10 words based on its unit number setting.
Data is exchanged with Special I/O Units once each cycle during I/O refresh-
ing, which occurs after program execution. The words can also be refreshed
with IORF(097).
Each Special I/O Unit is allocated 25 words based on its unit number, as
shown in the following table.
The function of the words allocated to a Unit depends upon the Special I/O
Unit being used. For details, refer to the Unit’s Operation Manual.
Words in the Special I/O Unit Area that aren’t allocated to Special I/O Units
can be used only in the program.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
95
Unit number
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
CIO 2160 to CIO 2169
CIO 2170 to CIO 2179
CIO 2950 to CIO 2959
Allocated words
Special I/O Unit
I/O
re-
fresh-
ing or
IORF
(097)
CPU Unit
Special I/O Unit Area
(10 words/Unit)
Section 8-8
271