Siemens SIPART Series Operating Instructions Manual page 200

Parameterizing/addressing
9.4 Description of parameters
9.4.3.12 Description of parameter P
P. PAVG - calculation of position average
Use this parameter to activate the test to calculate and monitor the position average.
Configure the following settings to activate the test:
1. Set the "P. PAVG" parameter to "On". Sub-parameters to set the test parameters are
displayed. The test is activated.
2. Set the suitable parameter values in sub-parameters. The setting options available in
sub-parameters are described below.
During the test, the position and reference average values are always compared at the end
of a time interval. The positioner triggers an error message if the current position average
exceeds a threshold.
The factory setting is "OFF".
P1.TBASE - time base for averaging
Use this sub-parameter to set the time interval to calculate the position average.
The following values are available to define the time intervals:
● 30 minutes
● 8 hours
● 5 days
● 60 days
● 2.5 years
After starting the reference average calculation and the expiry of the time interval, a position
average over the interval period is determined and compared with the reference average.
The test is then restarted.
The factory setting is "0.5 h".
P2.STATE - status of the position average calculation
Use this sub-parameter to start the calculation of the position average. If a reference
average has never been determined, the parameter value is "IdLE".
Then start the calculation by pressing the
changes from "IdLE" to "rEF". The reference average is calculated.
198
button for 5 seconds. The value in the display
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11