Rockwell Automation 57C400-1 115V AC/DC Input Module - Manual (Page 10)

2Ć2
There are 16 LED indicators on the faceplate of the module. They are
numbered sequentially from zero through 15, corresponding to the
bits in the register. See figure 2.2.
The LED indicators display the status of the logic level circuitry. A lit
LED indicates that both the input circuit and the logic level circuitry
are operating correctly.
115 VAC
INPUT
57C402
1
0
2
3
4
C1
5
6
7
C2
8
9
10
11
C3
12
13
14
15
C4
B
C
D E
F
G
1
2
3 6
7
8
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
1
1
0
1
1
1
1
1
1
1
6
7
2
3
4
5
1
8
1
9
2
0
Figure 2.2 Ć Module Faceplate