Siemens SIMATIC S5 IP 281 Equipment Manual page 32

R 11/92
Type of plug connector: 8–way, pin plug connector with screw connection
Digital inputs and
for the individual leads.
outputs, plug con-
The pin allocations of plug connectors X4 (for counter 1 ) and X6 (for counter
nectors X4 and X6
2) are identical.
24 V
nection for the individual leads
connector X3
Designation
1
o Vefiol
2
3
o Vefiol
4
5 SET
o ve~,
6
7 D Q
8
Designation
24 Veti
o vem4
2
General Function Description
Meaning
Gate starl input
Reference potential for digital input
Gate stop input
Reference potential for digital input
Set input
Reference potential for digital input
Digital output
Reference potential for digital output
Meaning
24 V supply voltage
External reference potential
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