X20 system modules • Analog input modules • X20AI8221
288
X20 system User's Manual 3.10
4.3.12.5 Pinout
AI + 1 U
AI + 2 U
AI + 3 U
AI− 1 U
AI− 2 U
AI− 3 U
AI + 4 U
AI + 5 U
AI + 6 U
AI− 4 U
AI− 5 U
AI− 6 U
AI + 7 U
AI− 7 U
AI + 8 U
AI− 8 U
1
2
3
4
5
6
7
8
S
Figure 113: Pinout
4.3.12.6 Connection example
GND
+24 VDC
GND
+24 VDC
AI
U1
U3
U5
U7
U2
U4
U6
U8
Figure 114: Connection example
4.3.12.7 Input circuit diagram
AI + x U
AI - x U
A/D
Converter
Input value
I/O status
LED (green)
Figure 115: Input circuit diagram
Summary of Contents for X20 System
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