CP1E-E@@D@-@ CP1E-N@@D@-@/NA20D@-@
I/O Memory Areas
Data can be read and written to I/O memory from the ladder programs. I/O memory consists of an area for I/O with external devices, user areas,
and system areas.
System Areas
Input bits (starting from CIO 0)
User Areas
DM Area (D)
Auxiliary Area
(A)
Timer Area (T)
Work Area (W)
Counter Area (C)
Condition Flags
Clock Pulses
Holding Area (H)
Output bits (starting from CIO 100)
I/O Memory Areas
Name
No. of bits
Word addresses
Remarks
For NA-type, CIO90, CIO91 is occupied by analog input 0, 1.
Input Bits
1,600 bits (100 words) CIO 0 to CIO 99
CIO Area
Output Bits
1,600 bits (100 words) CIO 100 to CIO 199 For NA-type, CIO190 is occupied by analog output 0.
Serial PLC Link Words
1,440 bits (90 words)
CIO 200 to CIO 289
--
--
Work Area (W)
1,600 bits (100 words) W0 to W99
Data in this area is retained during power interruptions if a
Battery Set (sold separately) is mounted to an N/NA-type CPU
Unit.
Holding Area (H)
800 bits (50 words)
2K words
H0 to H49
Data in specified words of the DM Area can be retained in the
built-in EEPROM in the backup memory by using a bit in the
Auxiliary Area.
E-type CPU Unit
D0 to D2047
Applicable words: D0 to D1499
(One word can be specified at a time.)
Data Memory Area (D)
Data in specified words of the DM Area can be retained in the
built-in EEPROM in the backup memory by using a bit in the
Auxiliary Area.
N/NA-type CPU Unit
8K words
D0 to D8191
Applicable words: D0 to D6999
(One word can be specified at a time.)
Present values
256
256
--
--
Timer Area (T)
T0 to T255
C0 to C255
Timer Completion Flags
Data in this area is retained during power interruptions if a
Battery Set (sold separately) is mounted to an N/NA-type CPU
Unit.
Present values
256
Counter Area (C)
Counter Completion Flags 256
--
Read only
Read-write
7168 bits (448 words) A0 to A447
4,896 bits (306 words) A448 to A753
Data in this area is retained during power interruptions if a
Battery Set (sold separately) is mounted to an N/NA-type CPU
Unit.
Auxiliary Area (A)
14
OMRON [ OMRON ELECTRONICS LLC ]
