DC (12-24V) Input Module
Cat. No. 1771-IB
Installation Data
5
Figure 2
Connection Diagram (3-Wire Devices)
DC
Power Supply
+
+
+
-
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
DC Common
Not used
See Applicable Codes and Laws
A
0
1
2
3
4
5
6
7
B
(Actual wiring runs in this direction.)
11834-I
The front panel of your module contains 8 red status LED indicators
(figure 3). The red status indicators are provided for system logic side
indication of individual inputs. When a red LED lights, voltage is present
on the terminal. The module transfers this information to the backplane for
the processor to read.
Figure 3
Status Indicators
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Status Indicators
11835-I
Interpreting the Status
Indicators
