1)
Refer to the corresponding parameter descriptions for additional information about parameters
11.3.2 Overview of online diagnostics
Online diagnostics means diagnostics during ongoing operation. During operation of the
positioner, a few important values and parameters are continually monitored. In configuration
mode, you can configure that monitoring so that the fault message output will be activated if, for
instance, a limit is exceeded.
Information about what events can activate the fault message output can be found in the table
in section "Overview of error codes (Page 229)".
This section contains particular information about the following situations:
● Possible causes of the fault message.
● Events which activate the fault message output or alarm outputs.
● Settings of parameters needed for event monitoring.
● Cancelling an error message
When the fault message output is triggered in "Automatic" or "Manual" mode, the display shows
which fault triggered the message. The two digits on the lower left show the corresponding error
code. If multiple triggers occur at the same time, they are displayed one after the other
cyclically. The device status, including all fault messages, can be called up using command
"#48" over HART.
See also
'52.XDIAG' Activating for extended diagnostics (Page 162)
Advanced diagnostic parameters A to U (Page 163)
11.3.3 XDIAG parameter
You can use the extended diagnostics parameters to display error messages in one, two or
three stages. In addition to the fault message output, the digital outputs A1 and A2 are then
used. For this purpose, set the "XDIAG" parameter as described in the following table:
XDIAG settings Message due to
OFF Extended diagnostics not activated
On1 Fault message output for threshold 3 error message (maintenance alarm, single-stage)
On2 Fault message output for threshold 3 error messages and digital output A2 for threshold 2
error messages (maintenance demanded, two-stage)
On3 Fault message output for threshold 3 error messages, digital output A2 for threshold 2 error
messages and digital output A1 for threshold 1 error messages (maintenance required,
three-stage)
Possible parameter setting 'XDIAG'
Diagnostics and troubleshooting
11.3 Online diagnostics
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 231
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