Siemens SIPART PS2 Operating Instructions Manual page 112

Operating
6.2 Operating modes
Diagnostics parameters '47.PRUP' Prediction UP / '48.PRDN' Prediction DOWN
These diagnostics parameters act as attenuation factors and are used to set the control
dynamics. Changes in the diagnostics values have the following results:
● Small values result in quick adjustments with overshoots.
● Large values result in slow adjustments without overshoots.
Note
Reference variable
It is advantageous to use a fixed reference variable to optimize the control data.
Therefore, change the deadband of the controller in the '34.DEBA' parameter from "Auto"
to a fixed value.
112
SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB