Troubleshooting Proline Promag 55 PROFIBUS DP/PA
132 Endress+Hauser
9.3 Process error messages
!
Note!
Also observe the information on ä 62 and ä 133.
9.3.1 Displaying the device status on PROFIBUS DP/PA
For more information, refer to ä 124.
9.3.2 List of process error messages
No. Device status message
(local display)
PROFIBUS measured value status
Extended
diagnostic
message in the
PROFIBUS
master
Cause/remedy
Quality code (HEX)
Measured value status
Quality status
Quality substatus
Limits
P = Process error
$ = Fault message (with and effect on operation)
! = Notice message (without an effect on operation)
401 P: EMPTY PIPE
$: # 401
0x03 BAD
BAD
Non specific
(uncertain
status)
Constant Empty Pipe
detected
Cause:
Measuring tube partially filled or empty.
Remedy:
1. Check the process conditions of the plant.
2. Fill the measuring tube.
461 P: ADJ. NOT OK
!: # 461
0x40
0x41
0x42
UNCERT
AIN
UNCERT
AIN
Non specific
(uncertain
status)
O.K.
Low
High
EPD adjustment
not possible
Cause:
EPD adjustment not possible because the fluid's
conductivity is either too low or too high.
Remedy:
The EPD function cannot be used with fluids of this
nature.
463 P: FULL = EMPTY
$: # 463
0x40
0x41
0x42
UNCERT
AIN
UNCERT
AIN
Non specific
(uncertain
status)
O.K.
Low
High
EPD adjustment
wrong
Cause:
The EPD calibration values for empty pipe and full pipe
are identical and therefore incorrect.
Remedy:
Repeat adjustment, making sure procedure is correct
ä 117.
467 S: AO-Block Error
$: # 467
0x0F BAD
BAD
Device
Failure
Device
Failure
Constant AO-Block Error Cause:
The value imported cyclically using the AO block is
invalid (status = BAD).
Remedy:
Ensure that the status of the imported value = GOOD.
Process variables affected
– calculated mass flow
– target mass flow
– % target mass flow
–carrier mass flow
– % carrier mass flow
– totalizer (mass)