Proline Promass Q 500 PROFIBUS PA
Diagnostics and troubleshooting
Hauser
163
12.2 Diagnostic information via light emitting diodes
12.2.1 Transmitter
Proline 500 – digital
Different LEDs in the transmitter provide information on the device status.
Power
I/O 2
I/O 3
I/O 3
1
2
3
4
5
3.
-
+
-
ESC
2.
Power
open
press
open
press
ESC
E
+
-
I/O 4
Power
I/O 2
I/O 3
1.
A0029689
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
Color
Meaning
1
Supply voltage
Green
Supply voltage is ok
Off
Supply voltage is off or too low
2
Device status
Green
Device is OK
Red
Error
Flashing red
Warning
3
Not used
–
–
4
Communication
Flashing white
Communication active
5
Service interface (CDI)
Yellow
Connection established
Flashing yellow
Communication active
Off
No connection
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