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26
Memory Allocation
Section 4-1
4-1
Memory Allocation
Memory Allocation
According to the setting of the Unit number switch on the front of the C200H-
CP114 Cam Positioner Unit, 10 words are allocated for each Unit number in
the Special I/O Unit area between IR 100 to IR 199, which is used as the I/O
refresh data area. The IR area used by the C200H-CP114 Cam Positioner
Unit is refreshed on each C200H
PC I/O refresh cycle.
Note A Duplicate I/O Unit error occurs if the set Unit number corresponds to the
number of an existing Special I/O Unit.
DM Number Allocation
For details on DM number allocation, refer to page 31.
IR area
Unit#0 IR 100 to IR 109
Unit#1 IR 110 to IR 119
Unit#2 IR 120 to IR 129
Unit#3 IR 130 to IR 139
Unit#4 IR 140 to IR 149
Unit#5 IR 150 to IR 159
Unit#6 IR 160 to IR 169
Unit#7 IR 170 to IR 179
Unit#8 IR 180 to IR 189
Unit#9 IR 190 to IR 199
During PC I/O refresh, each
cycle is executed for the outputs
(PC to Cam Positioner Unit) fol-
lowed by the inputs (Cam Posi-
tioner Unit or PC).
Cam Positioner Unit
I/O refresh data area
Word (n)
to
word (n+2)
Output refresh
Word (n+3)
to
word (n+9)
Input refresh
(n=100 + 10 x Unit number)
The terms "output" and "input" are defined
with reference to the C200H
@
.
C200H
@
PC
DMx
DM(x+1)
to
DM(x+14)
DM1000 to 1010
DM1100 to 1110
DM1200 to 1210
DM1300 to 1310
DM1400 to 1410
DM1500 to 1510
DM1600 to 1610
DM1700 to 1710
DM1800 to 1810
DM1900 to 1910
(x=0000 to 0985)
DMm
DM(m+1)
DM(m+2)
DM(m+10)
DMx
DM(x+14)
Data Memory (DM)
Dedicated DM (Read Only)
Unit #0
Unit #1
Unit #2
Unit #3
Unit #4
Unit #5
Unit #6
Unit #7
Unit #8
Unit #9
Including dedicated DM
and general DM, one
word at a time will be
transmitted during the
PC's I/O refresh.
Cam Positioner Unit
C200H
@
PC
Fixed Data Area
General DM
(Read and Write)
15 words max. x 8 = 120 words
1 data
block
(15
words)
For cam data
setting
For setting the
number of revolu-
tions required for
a single process.
(m = 1000 + 100 x Unit no.)
For cam data
setting
15 words max.
x 8 = 120 words
Содержание C200H-CP114
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Страница 3: ...C200H CP114 Cam Positioner Unit Operation Manual Revised January 2001...
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Страница 59: ...45 SECTION 5 Troubleshooting This section provides possible errors and corrections Error Detection 46...
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