User manual

6 Detailed descriptions of I/O modules | Analogue input module UR20-4AI-UI-16-DIAG-HD
258 1432790000/08/12.2015Manual u-remote
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4AI·UI·16·D
Module status LED
Green: Communication over the system bus
Red: Collective error diagnostic
1.1 Red: channel error
1.2 Red: +24V short circuit or line break (with current < 1mA)
2.1 Red: channel error
2.2 Red: +24V short circuit or line break (with current < 1mA)
5.1 Red: channel error
5.2 Red: +24V short circuit or line break (with current < 1mA)
6.1 Red: channel error
6.2 Red: +24V short circuit or line break (with current < 1mA)
LEDindicatorsUR20-4AI-UI-16-DIAG-HD,errormessagesseeChapter13
AI 0
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•
AI 3
System
bus
U
SYS
U
IN
U
OUT
UR20-4AI-UI-16-DIAG-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-DIAG-HD