Siemens SIMATIC S7-1500 Manual page 55

Connecting
3.4 Digital inputs and outputs of X122, X132 and X142
Pin assignment of X142 interface
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DI/DQ: Bidirectional digital input/output; M: Electronic ground
1)
B = Bidirectional; GND = Reference potential (ground)
2)
54
Designation Signal type
1)
– –
– –
DI/DQ0 B
DI/DQ1 B
M GND
DI/DQ2 B
DI/DQ3 B
M GND
DI/DQ4 B
DI/DQ5 B
M GND
DI/DQ6 B
DI/DQ7 B
M GND
Notes
2)
Reserved
Reserved
Digital input/output 0
Digital input/output 1
Ground for digital input/output
Digital input/output 2
Digital input/output 3
Ground for digital input/output
Digital input/output 4
Digital input/output 5
Ground for digital input/output
Digital input/output 6
Digital input/output 7
Ground for digital input/output
Equipment Manual, 11/2019, A5E46600370-AA
SIMATIC Drive Controller