33
Unit Numbers and I/O Word Allocation Section 3-2
Duplication can be avoided here too by starting Remote Terminal words from
the upper end. (See Example 2, above, for details.)
Do not set words that are being used for other I/Os.
16
pts.
16 pts.
32 pts.
16 pts.
16 pts.
IR 5
IR 4
IR 2 & 3
IR 1
IR 0
Master
Master
Word
multiplier:
0
C500 Ex-
pansion
I/O Rack*
16
pts.
16 pts.
32 pts.
16 pts.
16 pts.
Master
C500
Expansion
I/O Rack
16
pts.
16 pts.
16 pts.
16 pts.
16 pts.
16 pts.
16 pts.
IR 19
IR 18
IR 17
IR 16
16 pts.
16 pts.
16 pts.
IR 22
IR 21
IR 20
IR 15
IR 14
IR 12 & 13
IR 11
IR 10
IR 25
IR 24
IR 23
Word
multiplier:
2
Master
16
pts.
16 pts.
16 pts.
IR 28
IR 27
IR 26
Word
multiplier:
1
Remote T
erminal
Ser as terminator
.
Set word: 31
Allocated word:31
Remote T
erminal
Remote T
erminal
Set as terminator
.
Set words:
31
30
Allocated
words:
95
94
Remote T
erminal
Remote T
erminal
Set as terminator
.
Set words:
31
30
Allocated
words:
63
62
32
pts.
16 pts.
16 pts.
IR 8 & 9
IR 7
IR 6
Slave
Set
to Unit #0
Slave
Set to
Unit
#0.
Slave
Set to Unit #1.
Set as terminator
.
*No word multiplier needed because no Remote T
ermi-
nal is connected.
C1000H and C2000H CPU Rack
C500
Expansion
I/O Rack
Example 4: C1000H and
C2000H with Slaves and
Remote Terminals
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