11 Pst - Monitoring Of The Partial Stroke Test; 12 Prpst - Time Since Last Partial Stroke Test; 13 Nxpst - Time Until Next Partial Stroke Test; 14 Devi - General Control Valve Fault - Siemens SIPART PS2 FF Compact Operating Instructions

11 PST - monitoring of the partial stroke test

Communication object: [PST.PST_CUR_TIME]
The measured step time of the last partial stroke test is displayed here. A partial stroke test can be initiated manually or a
current partial stroke test can be interrupted by pressing the larger button.
The following states are output in the display:
● OFF
The partial stroke test function is deactivated in the configuration menu.
● FdIni (failed PST initialization)
The partial stroke test reference step time measurement has failed.
● notSt (no test)
A manual partial stroke test has not yet been executed.
● ###.# (measured step time in seconds)
The last partial stroke test was successfully executed.
● SdtSt (stopped test)
The last partial stroke test was interrupted.
● FdtSt (failed test)
The last partial stroke test has failed.
The following status messages appear when the larger button is pressed:
● notoL (no tolerance)
The control valve is beyond the tolerance range to start the partial stroke test. A manual partial stroke test is not started.
● Strt (start)
A manual partial stroke test is started five seconds after pressing the button.
● StoP (stop)
The current partial stroke test is interrupted.

12 PRPST - time since last partial stroke test

Communication object: [PST.PST_PREV_TIME]
The time (in days) elapsed since the last partial stroke test is displayed here. In addition, the following status messages can
be displayed:
● notSt (no test)
A manual partial stroke test has not yet been executed.
● SdtSt (stopped test)
The last partial stroke test was interrupted.
● FdtSt (failed test)
The last partial stroke test has failed.

13 NXPST - time until next partial stroke test

Communication object: [PST.PST_NEXT_TIME]
The time (in days) until the next partial stroke test is displayed here. The requirements are that the partial stroke test is
activated in the configuration menu and a test interval is set. "OFF" is displayed if one of the two requirements is missing.

14 DEVI - general control valve fault

Communication object: [DEVIATION_VALUE]
This value provides information about the present dynamically determined deviation from the model response. If the
underlying function is deactivated in the configuration menu, "OFF" is displayed.
Functional safety for SIPART PS2 FF
A5E00489774-02, 10/2013
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