User manual

6 Detailed descriptions of I/O modules | Analogue input module UR20-4AI-UI-16-HD
251Manual u-remote1432790000/08/12.2015
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4AI-UI-16
Module status LED
Green: Communication over the system bus
Red: Collective error diagnostic
1.1 Red: channel error
2.1 Red: channel error
5.1 Red: channel error
6.1 Red: channel error
LEDindicatorsUR20-4AI-UI-16-HD,errormessagesseeChapter13
AI 0
•
•
AI 3
System
bus
U
SYS
U
IN
U
OUT
UR20 4AI-UI-16-HD
µC µC MUX
24 V DC IN
GND IN
FE
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A
D
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AI 0
GND
24 V DC
FE
AI 1
GND
24 V DC
FE
AI 2
GND
24 V DC
FE
AI 3
GND
24 V DC
FE
J
J
J
J
Block diagram UR20-4AI-UI-16-HD