Endress+Hauser Proline Prosonic Flow I 400 Operating Instructions Manual page 128

Diagnosis and troubleshooting
128
1.
1
2
3
1 Supply voltage
2 Device status
3 Not used
4 Communication
5 Service interface (CDI) active
1. Open the housing cover.
2. Remove the display module.
3. Fold open the terminal cover.
LED
Supply voltage Off
Green
Alarm Off
Flashing red
Red
Device status Green
Flashing red
Red
Alternately flashing red/green Boot loader is active
Communication Flashing white
Alarm Green
Flashing green
Off
Red
Flashing red
Flashing red/green
Proline Prosonic Flow I 400 Modbus RS485
E S
C
-
+
-
2.
4
Color
Supply voltage is off or too low
Supply voltage is ok
Device status is ok
A device error of diagnostic behavior "Warning" has occurred
• A device error of diagnostic behavior "Alarm" has occurred
• Boot loader is active
Device status is ok
A device error of diagnostic behavior "Warning" has occurred
A device error of diagnostic behavior "Alarm" has occurred
Modbus RS485 communication is active
Measuring device is ok
Measuring device not configured
Firmware error
Main error
Fault
Start measuring device
3.
5
A0029689
Meaning
Endress+Hauser