Siemens SITRANS P300 - Min;Max Pointer

Operating functions via HART
7.21 Diagnostic functions
SITRANS P300 with HART communication
Operating Instructions, 06/2005, A5E00359579-02
7-29
• "Reset" resets the warning/interrupt message and the timer. It acknowledges the interrupt
or warning at the same time. The timer immediately starts running again from zero and
will report again when the warning/interrupt limit is next reached. The next calibration
interval is therefore immediately active.
• "Reset and deactivate W/I" resets the warning/interrupt message and the timer and
deactivates it.
7.21.4 Min/max pointer
Description
The transmitter provides three min/max pointer pairs, which you can use to monitor the three
measured variables Pressure, Sensor temperature, and Electronics temperature for negative
and positive peak values. For each measured value, a resettable min/max pointer saves the
maximum and minimum peak values in long-term storage in the two non-volatile memories.
Consequently, the values are available even after the device is restarted. The min/max
pointers are also updated during a simulation.
S
W
3UHVVXUHJUDGLHQWV
8SSHUGUDJLQGLFDWRUYDOXH
/RZHUGUDJLQGLFDWRUYDOXH
Figure 7-14 Basic representation of min/max pointers
p Pressure t Time