Omron CP1H CPU UNITS - PROGRAMMING 05-2007, Operation Manual

Page: 178 / 788

144
Overview of I/O Memory Area
Section 4-1
4-1-2 Overview of the Data Areas
■
CIO Area
It is not necessary to input the “CIO” acronym when specifying an address in
the CIO Area. The CIO Area is generally used for data exchanges, such as
I/O refreshing with PLC Units. Words that are not allocated to Units may be
used as work words and work bits in the program.
Note 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.
I/O Area (Inputs: CIO 0 to CIO 16, Outputs: CIO 100 to CIO 116)
These words are allocated to built-in I/O terminals of CP1H CPU Units and
CP-series Expansion Units or Expansion I/O Units. Input words and output
bits that aren’t allocated may be used in programming.
Built-in Analog Input Area (Built-in Analog Inputs: CIO 200 to CIO 203,
CIO 210 to CIO 211) (XA CPU Units Only)
These words are allocated to built-in analog I/O terminals of CP1H XA CPU
Units. Words that aren’t used in data links may be used in programming.
Data Link Area
These words are used when the Controller Link auto-setting area is set to the
link area or for PLC links. Words that aren’t used in data links may be used in
programming.
X and Y CPU Units XA CPU Units
15
00
CIO 0
CIO 16
CIO 17
CIO 999
CIO 1000
CIO 1200
CIO 1199
CIO 1500
CIO 1499
CIO 1900
CIO 1899
CIO 1999
CIO 2000
CIO 2959
CIO 2960
CIO 6143
(CIO 3199)
CIO 3200
CIO 3799
CIO 3800
CIO 3100
CIO 100
CIO 116
CIO 99
CIO 117
Word
Bit
Input Area
Not used (see note).
Output Area
Not used (see note).
Data Link Area
Work Area
CPU Bus Unit Area
(25 words/Unit)
Not used (see note).
Special Unit Area
(10 words/Unit)
Not used (see note).
Serial PLC Link Area
DeviceNet Area
Work Area
15
0
CIO 0
CIO 16
CIO 17
CIO 999
CIO 1000
CIO 1200
CIO 1199
CIO 1500
CIO 1499
CIO 1900
CIO 1899
CIO 1999
CIO 2000
CIO 2959
CIO 2960
CIO 6143
(CIO 3199)
CIO 3200
CIO 3799
CIO 3800
CIO 3100
CIO 100
CIO 116
CIO 99
CIO 117
Built-in Analog I/O Areas
CIO 200
CIO 211
CIO 199
CIO 212
Word
Bit
Input Area
Not used (see note).
Output Area
Not used (see note).
Data Link Area
Work Area
CPU Bus Unit Area
(25 words/Unit)
Not used (see note).
Special Unit Area
(10 words/Unit)
Not used (see note).
Serial PLC Link Area
DeviceNet Area
Work Area
Not used (see note).