Alarm, fault and system messages
12.3 Online diagnostics
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
231
Note
All diagnostics values are updated in the non-volatile memory every 15 minutes so that, in
case of a power failure, only the values of the previous 15 minutes may be lost.
See also
12.3
Online diagnostics
12.3.1
Overview of online diagnostics
A few important variables and parameters are continuously monitored during the operation of
the positioner. In the "Configuration" mode, you can configure this monitoring such that the
fault message output is activated when a specific event such as exceeding a threshold
occurs.
The following table shows which events can activate the fault message output, how the
parameters must be set to monitor this event, when does the fault message disappear and
what are the probable causes for a fault.
In the automatic and manual modes, the initiator of a fault message is shown on the digital
display when responding to the fault message output. Both digits at bottom-left indicate the
corresponding error code. If there are more initiators at a time, they are displayed cyclically
one after the other.
12.3.2
XDIAG parameter
You can use the advance diagnostics parameters to display fault messages in one, two or
three stages. In addition to the fault message output, alarm outputs 1 and 2 are then used.
For this purpose, set the "XDIAG" parameter as described in the following table:
Settings of XDIAG
Message due to
OFF
Advanced diagnostics not activated
On 1
Fault message output for threshold 3 fault messages (one-stage)
On 2
Fault message output for threshold 3 fault messages and alarm output 2 for threshold 2
fault messages (two-stage)
On 3
Fault message output for threshold 3 fault messages and alarm output 2 for threshold 2
fault messages and alarm output 1 for threshold 1 fault messages (three-stage)
Possible settings of the "XDIAG" parameter
See also
