306
The
following example illustrates connections for an A7B Thumbwheel Switch.
1
3
5
7
9
11
13
15
COM
0
2
4
6
8
10
12
14
COM
ID212
Input
Unit
Switch
no. 8
1
3
5
7
9
11
13
15
COM
0
2
4
6
8
10
12
14
DC
OD212
1248
76 5 4 3 2 1C
Output Unit
A7B
Thumbwheel
Switch
Note The data read signal is not required in the example.
The
inputs must be connected to a DC Input Unit with 8 or more input points and
the outputs must be connected from a T
ransistor Output Unit with 8 or more out
-
put points.
Advanced I/O Instructions Section 5-28
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