Siemens SIMATIC ET 200SP Manual page 17

Smoothing
The individual measured values are smoothed by filtering. The smoothing can be set in
4 levels.
Smoothing time = number of module cycles (k) × cycle time of the module.
The following figure shows how many module cycles it takes for the smoothed analog value
to approach 100%, depending on the configured smoothing. This is valid for all signal
changes at the analog input.
①
②
③
④
Figure 4-1
Interference frequency suppression
Suppresses the interference affecting analog input modules that is caused by the frequency
of the AC voltage network used.
The frequency of the alternating voltage network may negatively affect the measured value,
in particular when measuring in the low voltage range and with thermocouples. With this
parameter, the user specifies the line frequency that is predominant in the plant.
Potential group
You can use the "Potential group" parameter to specify whether the module is inserted in a
light-colored or dark-colored BaseUnit.
A potential group always starts with an I/O module that is inserted on a light-colored
BaseUnit. All modules inserted to the right of this on dark-colored BaseUnits belong to the
same potential group, because the dark-colored BaseUnits are supplied via the light-colored
BaseUnits.
The potential group ends with a new light-colored BaseUnit or the end of the station.
Analog input module AI 8xI 2-/4-wire BA (6ES7134-6GF00-0AA1)
Manual, 03/2015, A5E34941201-AA
No smoothing (k = 1)
Weak (k = 4)
Medium (k = 8)
Strong (k = 16)
Smoothing with AI 8xI 2-/4-wire BA
Parameters/address space
4.3 Explanation of the parameters
17