Measured Value And Event Memory; Asset Management Function - Vega VEGAPULS WL S 61 Manual De Instrucciones

8 Diagnosis, asset management and service
8.2 Measured value and event
memory
The instrument has several memories available
for diagnostic purposes. The data remain there
even in case of voltage interruption.
Measured value memory
Up to 100,000 measured values can be stored
in the sensor in a ring memory. Each entry con-
tains date/time as well as the respective measu-
red value. Storable values are for example:
•
Distance
•
Filling height
•
Percentage value
•
Lin. percent
•
Scaled
•
Current value
•
Measurement reliability
•
Electronics temperature
When the instrument is shipped, the measured
value memory is active and stores distance,
measurement reliability and electronics tempe-
rature every 3 minutes.
The requested values and recording conditions
are set via a PC with PACTware/DTM or the
control system with EDD. Data are thus read out
and also reset.
Event memory
Up to 500 events are automatically stored with a
time stamp in the sensor (non-deletable). Each
entry contains date/time, event type, event de-
scription and value. Event types are for example:
•
Modification of a parameter
•
Switch-on and switch-off times
•
Status messages (according to NE 107)
•
Error messages (according to NE 107)
The data are read out via a PC with PACTware/
DTM or the control system with EDD.
Echo curve memory
The echo curves are stored with date and time
and the corresponding echo data. The memory
is divided into two sections:
Echo curve of the setup: This is used as
reference echo curve for the measurement
conditions during setup. Changes in the measu-
rement conditions during operation or buildup
on the sensor can thus be recognized. The echo
curve of the setup is stored via:
•
PC with PACTware/DTM
30
•
Control system with EDD
•
Display and adjustment module
Further echo curves: Up to 10 echo curves
can be stored in a ring buffer in this memory
section. Additional echo curves are stored via:
•
PC with PACTware/DTM
•
Control system with EDD
8.3

Asset Management function

The instrument features self-monitoring and
diagnostics according to NE 107 and VDI/
VDE 2650. In addition to the status messages
in the following tables there are more detailed
error messages available under the menu item
"Diagnostics" via app or PACTware/DTM.
Status messages
The status messages are divided into the
following categories:
•
Failure
•
Function check
•
Out of specification
•
Maintenance requirement
and explained by pictographs:
1 2
Abb. 23: Pictographs of the status messages
1 Failure - red
2 Out of specification - yellow
3 Function check - orange
4 Maintenance - blue
Failure: Due to a malfunction in the instrument,
a fault message is output.
Function check: The instrument is being
worked on, the measured value is temporarily
invalid (for example during simulation).
Out of specification: The measured value is
unreliable because an instrument specification
was exceeded (e.g. electronics temperature).
Maintenance: Due to external influences, the
instrument function is limited. The measurement
is affected, but the measured value is still valid.
Plan in maintenance for the instrument because
a failure is expected in the near future (e.g. due
to buildup).
Information:
The status messages are always active.
It cannot be deactivated by the user.
VEGAPULS WL S 61 • 4 ... 20 mA
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