Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 291

I/O Memory Areas
Note
I/O Area
Bit
Word
15
CIO 0000
I/O Area
CIO 0319
(CIO 0320)
(Not used,
but see note 1.)
(CIO 0999)
CIO 1000
Data Link Area
CIO 1199
CIO 1200
Internal I/O Area
CIO 1499
CIO 1500
CPU Bus Unit Area
(25 words/Unit)
CIO 1899
CIO 1900
Inner Board Area
CIO 1999
CIO 2000
Special I/O Unit Area
(10 words/Unit)
CIO 2959
(CIO 2960)
(Not used,
but see note 2.)
(CIO 3199)
CIO 3200
CS/CJ-series
DeviceNet Area
(CIO 3799)
CIO 3800
Internal I/O Area
CIO 6143
1. It is possible to use CIO 0320 to CIO 0999 for I/O words by making the ap-
propriate settings for the first words on the Racks. Settings for the first
words on the Racks can be made using the CX-Programmer to set the first
Rack addresses in the I/O table. The settings range for the first Rack ad-
dresses is from CIO 0000 to CIO 0900.
2. The parts of the CIO Area that are labelled "Not used" may be used in pro-
gramming as work bits. In the future, however, unused CIO Area bits may
be used when expanding functions. Always use Work Area bits first.
These words are allocated to external I/O terminals on Basic I/O Units. Words
that aren't allocated to external I/O terminals may be used only in the pro-
gram.
Bit
00
Section 8-2
255