Chapter 5 Functional principle
5.1.4 Decay module
The decay module is designed to summarise several measurement values. The average value over a
required time frame or the minimum value within a required time frame can be determined, for
example. The decay module is only available for the 4 universal inputs, with the exception of
"Cnt.Day" channel mode.
The following table specifies the relevant parameters for the module:
Configuration section
Mode
Parameter
Explanation
Measurement channels -
>Config.
Digital
Digital LP
Decay
Temporal function in the measurement
cycle
Time
Time x, that is used for decay modes
"up", "down" and "up & down"
Cnt.Day
---
---
Cnt.Intervl.
Freq
PWM
4-20 mA
0-20 mA
0-2 V
0-10 V
Decay
Temporal function in the measurement
cycle
Time
Decay period. Up to a maximum of 60
measurement valuescan be used for the
calculation (e.g. 1 channel:
60 measurement values; ... 4 channels:
15 measurement values each). To
calculate the number of measurement
values that are taken into account, refer
to "Example to clarify the record interval,
measurement cycle and burst interval in
conjunction with the decay" in chapter
"Basic settings" on page 96.
Rev. 06
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