Siemens SIMATIC S5-100U System Manual page 436

Function Modules
• Connecting a 5-V Position Sensor to RS 422
Electronic light
5V 5V 0V
V
5-V
a1
Position
sensor
V
a2
V
a0
Figure 15-11. Connecting a 5-V Position Sensor to RS 422
• Connecting a 24-V DC Position Sensor
Electronic light source
0 V
24-V
Position
sensor
V
V
V
Figure 15-12. Connecting a 24 V DC Position Sensor
15-22
Sensor line
Shield
24 V
a1
a2
a0
Shield
Module
5V
1
5 V L+
2
3
0 V 24 V M
4
5
A-N
6
7
A
8
9
B
B-N
10
R
11
12
R-N
13
16
15
Shell of subminiature D connector
Module
1
2
3
M
4
5
0 V
6
7
L+
8
9
24 V
10
11
12
A
13
16
B
R
15
Shell of subminiature D connector
EWA 4NEB 812 6120-02b
S5-100U