Omron C200H-CT021, Operation Manual

Page: 39 / 162

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DM and IR Bit Allocation
Section 4-2
Data of 10 IR words and data from the Special I/O Unit are transferred at the
time of the PC’s I/O refresh.
Note Refer to 4-11 Data Processing with PC for I/O refresh and data transfer tim-
ing.
[DM]
Unit 0
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9
Unit A
Unit B
Unit C
Unit D
Unit E
Unit F
Unit 0
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9
Unit A
Unit B
Unit C
Unit D
Unit E
Unit F
DM 1000 to 1099
DM 1100 to 1199
DM 1200 to 1299
DM 1300 to 1399
DM 1400 to 1499
DM 1500 to 1599
DM 1600 to 1699
DM 1700 to 1799
DM 1800 to 1899
DM 1900 to 1999
DM 2000 to 2099
DM 2100 to 2199
DM 2200 to 2299
DM 2300 to 2399
DM 2400 to 2499
DM 2500 to 2599
IR 100 to 109
IR 110 to 119
IR 120 to 129
IR 130 to 139
IR 140 to 149
IR 150 to 159
IR 160 to 169
IR 170 to 179
IR 180 to 189
IR 190 to 199
IR 400 to 409
IR 410 to 419
IR 420 to 429
IR 430 to 439
IR 440 to 449
IR 450 to 459
Optional bit areas
(DM, fixed DM, EM,
IR, LR, HR, and AR)
[IR area]
Initial data transfer
Executed when the
CT021 is turned
ON or restarts.
Data area,
READ DATA and
WRITE DATA
By e x e cuting IORD and
IOWR instructions, data can
be written to and read from
the data area of the
High-speed Counter Unit.
Set the assigned area to
data and set the data
transfer IR bit to 1 to
transfer the data.
Scanned and refreshed
At the time of the PC's I/O
refresh, the PC to the
High-speed Counter Unit (OUT)
and the High-speed Counter Unit
to the PC (IN) are refreshed.
The EM area is available with the C200HX and C200HG.
Example: C200HX High-speed Counter Unit
Data area of the
High-speed Counter Unit
Up to 100 words are used.
m = 1000 + 100
×
Unit No.
OUT data area
I/O data area
IN data area
Up to 10 words are used
n = 100 + 10
×
Unit No. (0 to 9)
n = 400 x 10
×
(Unit No.
−
10)
(A to F)
New data and preset
value transfer
Word m
to
Word (m+99)
Word n
to
Word (n+99)
to