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6-2 Allocation of the PC Data Area Interface
6-2-1 C200H/C200HS PC Interface
SYSMAC C200H/C200HS C200H-MC221
IR Area
IR 100 to IR 119
IR 110 to IR 129
IR 120 to IR 139
IR 130 to IR 149
IR 140 to IR 159
IR 150 to IR 169
IR 160 to IR 179
IR 170 to IR 189
IR 180 to IR 199
Unit #0
Unit #1
Unit #2
Unit #3
Unit #4
Unit #5
Unit #6
Unit #7
Unit #8
DM Area (Essential)
DM 1000 to DM 1001
DM 1100 to DM 1101
DM 1200 to DM 1201
DM 1300 to DM 1301
DM 1400 to DM 1401
DM 1500 to DM 1501
DM 1600 to DM 1601
DM 1700 to DM 1701
DM 1800 to DM 1801
Unit #0
Unit #1
Unit #2
Unit #3
Unit #4
Unit #5
Unit #6
Unit #7
Unit #8
Data is transferred to
each Unit whenever an
I/O refresh is executed.
Data is automatically
transferred to each Unit
when power is ON or the
AR Restart Flag is ON.
Transferred
whenever
necessary
Refreshed once every
two to three cycles.
I/O Refresh Data Area
Wd n
to
Wd n+7
Wd n+8
to
Wd n+19
Output refresh
Input refresh
20 words are used.
n: 100 + 10 x unit no.
Fixed DM Area (Initial Setting Area)
m
m+1
Specification of Expansion DM Area
First word of Expansion DM Area
2 words are used.
m: 1000 + 100 x unit no.
Expansion Data Area
Wd I
to
Wd I+11
Wd I+12
to
Wd I+22
Output data
Input refresh
23 words are used.
I: Words specified with m and m + 1.
DM Area (Optional)
Optional words
(23 words)
Explanation Each MC Unit occupies 20 words within a range of 100 to 199 words of the Spe-
cial I/O Unit area as an I/O refresh data area.
Each MC Unit occupies two words as a fixed data area (initial setting area) within
a range of DM 1000 to DM 1999.
If an expansion DM area is made effective by designating the above initial set-
ting area, the area will occupy 23 words except from DM 1000 to DM 1999. The
first word of the expansion DM area is specified in the initial setting area.
Note 1. Each unit number must be unique. Do not set unit 9.
2. The DM memory must be within a range of DM 7000 to DM 7999 for the
C200HS in linear mode.
Refer to 1-3 Setting the Unit Number for details.
Allocation of the PC Data Area Interface
Section 6-2
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