Siemens SITRANS P Operating Instructions Manual page 156

Parameter assignment
9.3 Parameter assignment over remote operation
Result
Process value alarms and warnings are acknowledged and deleted.
The event counter is reset.
Hysteresis
The hysteresis works as follows:
Limits with hysteresis
If you enter a non-zero value in the "Hysteresis" text box, the hysteresis is disabled.
Upper limit with hysteresis (A)
An overrun event is counted when the process value rises above the upper limit
The next overrun event is counted when the process value falls below the lower limit minus the
entered hysteresis
Two events are counted in the displayed time period within 'A'.
156
②
and then rises above the upper limit
③
.
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
①
.