The diagnostic messages are divided into the following
groups in accordance with the NAMUR classification
scheme:
Symbol -
Letter
Description
I OK or
Information
Device is functioning or
information is available
C Check Function Device is undergoing
maintenance (e. g. simulation)
S Off
Specification
Device or measuring point is
being operated outside of the
specifications
M Maintenance
Required
Request service to prevent the
measuring point from failing
F Failure Error; measuring point has failed
Additionally, the diagnostic messages are divided into the
following areas:
Range
Description
Electronics Diagnosis for device hardware.
Sensor Diagnosis for sensor elements and
connection lines.
Installation /
Configuration
Diagnosis for communication interface and
parameterization / configuration.
Operating
conditions
Diagnosis for ambient and process
conditions.
NOTICE
For a detailed description of the errors and information on
troubleshooting, see chapter ‘Possible HART error
messages’ on page 30 .
9 Diagnosis / error messages
The transmitter signals messages and errors in different
ways.
Messages via the HART interface
The transmitter signals changed configuration or parameter
setting by setting the HART flag "Configuration-changed"
(Configuration-changed).
The message can be acknowledged via the HART-DTM.
Error message on the LCD display
In the event of an error, a message appears at the bottom of
the process display,
consisting of a symbol or letters
(Device Status) and a number (DIAG.NO.).
See chapter ‘Error messages on the LCD display’ on page 29
.
Error message on the current output
Sensor or device errors can be indicated by underranging or
overranging of the current output.
Configuration takes place via the DTM parameter "<Current
output / output upon error>".
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