LEDs of the Compact Field Unit
The following LEDs are located on the front of the CFU.
1
2
4
5
3
Identification
Color
Meaning
Brief description
①
LK1 and LK2
Green
LED for status display on the BusA‐
dapter
Connection status
②
● PWR
Green
Power supply (Power)
Diagnostics of the CFU
(LEDs on the interface
dome)
● RN
Green
Operating mode (RUN)
● ER/MT
Red/yellow
Error indication (Error/Maintenance)
③
PS1 and PS2
Green
Supply voltage PS <x> is available
Power supply
Red
Problem with supply voltage PS <x>
(missing or faulty)
④
DIQ0 to DIQ7
LED display on channel
(DIQ<n>)
Green or OFF
Signal status 1 or 0
Signal OK
Red
Error display (Error)
Error
⑤
For CFU PA:
FB0 to FB7
LED display on fieldbus con‐
nection (FB<n>)
Green
Field device connected and OK
Field device connected
Yellow
Status display (Maintenance)
Maintenance deman‐
ded or maintenance re‐
quired
Red
Error display (Error)
Error
For CFU DIQ:
DIQ8 to DIQ15
LED display at channel
(DIQ<n>)
Green or OFF
Signal status 1 or 0
Signal OK
Red
Error display (Error)
Error
Table 9-1
Legend for the following tables:
ON
LED lit
Off
Off
LED not lit
*
*
*
*
Any status (not relevant)
Flashes
Maintenance status (flashes)
Diagnostics of the CFU
9.2 Diagnostics via LED displays
SIMATIC CFU
108
Commissioning Manual, 08/2019, A5E39252870-AD
Summary of Contents for Simatic CFU
Page 8: ...Table of contents SIMATIC CFU 8 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 10: ...Security information SIMATIC CFU 10 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 16: ...What is a Compact Field Unit SIMATIC CFU 16 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 54: ...Installation 6 4 Removing the CFU SIMATIC CFU 54 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 202: ...Appendix A 10 Contact SIMATIC CFU 202 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 216: ...Glossary SIMATIC CFU 216 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 220: ...Index SIMATIC CFU 220 Commissioning Manual 08 2019 A5E39252870 AD ...