Owner's manual

Chapter 3
Using Local I/O
3–17
Table 3.I shows the relationship between the I/O line and optic–isolator
numbers shown in Figure 3.8.
Table 3.I
Output Numbering
Discrete I/O
Line Number
LED and I/O
Module
Terminal Screw
and Polarity
Input Output
Module
Number
+ –
1 0 1 2
2 1 3 4
1 2 5 6
2 3 7 8
3 4 9 10
4 5 11 12
5 6 13 14
6 7 15 16
7 8 17 18
8 9 19 20
9 10 21 22
10 11 23 24
11 12 25 26
12 13 27 28
13 14 29 30
14 15 31 32
Note: A self–adhesive decal (Part Number 40062-149-01) is provided with
the 1771–JMB Local I/O board. This decal identifies the I/O lines. Use the
chart on the next page if the decal is not in place.