Redundant I/O Modules
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Digital Inputs
36
10.3.4
Connecting Digital Inputs
Connect the digital inputs via the cage clamps X1 and X2. Proceed as follows:
1. Switch off the power.
2. Connect the inputs regarding the pin
assignment and the signals.
Digital Inputs 24 and 72 V
(4 Potentials)
Coding
Cage Clamp X1
Pin
Signal
Description
1
GND
A
0 V - Potential A
2
DI1
Input 1
(1st Byte LSB)
3
DI 2
Input 2
4
DI 3
Input 3
5
DI 4
Input 4
6
DI 9
Input 9
(2nd Byte LSB)
7
DI10
Input10
8
DI11
Input 11
9
DI12
Input 12
10
GND
C
0 V - Potential C
Module
Plug
Connectors
Cage
Clamp
24 V
Pin 2
Pin 3 and 4
72 V
Pin 4 and 7
Pin 2, 3, 5
and 6