10
5.3.3 Diagnostic cases
Diagnostic case
Diagnostic messages
Warning
Alarm
Failure
1 Drift warning threshold [drW] exceeded
●
2 Limit temperature internal electronics
exceeded (+125°C)
●
3 Drift alarm threshold [drA] exceeded
●
4 Failure of one of the two sensor
elements
●
5 Measured temperature value far
outside the measuring range
●
6 Supply voltage outside the operating
range*
●
7 Drift failure threshold [drF] exceeded
●
8 Error during parameter setting via
IO-Link
●
9
Failure of both sensor elements
or
general electronics problems
●
Table 1: Diagnostic cases for 2-wire operation and 3-wire operation
*Exception: For 2-wire operation no diagnostic message is provided in case of undervoltage�
5.3.4 Diagnostic function in 2-wire operation
In 2-wire operation the analogue output is used for temperature measurement and
diagnostics�
With [drEd] the diagnostic cases to be signalled can be set via the analogue
output:
