Chapter 5 Functional principle
5.1.1 Filter module
The filter module is designed to compensate for brief fluctuations to the input signal. This module is
only available for the 4 universal inputs.
The following table specifies the relevant parameters for the module:
Configuration section
Mode
Parameter
Explanation
Measurement channels -
>Config.
digital
Filter time
Time in [ms] during which the signal
must remain constant to initiate a level
change. Used to suppress brief faults
(debouncing).
digital LP
Cnt.Day
Cnt.Intervl.
Freq
PWM
4-20mA
Filter time
Time in [ms] during which the analogue
signal is averaged for signal smoothing.
Used to suppress signal noise (also see
"Output channels" on page 88).
0-20mA
0-2V
0-10V
5.1.2 Overflow module
This module monitors the measurement range limits of the raw value. If a universal input was, for
example, switched to "4-20 mA" mode, a raw value of 2 mA will violate the measurement range.
The overflow module is only available for the 4 universal inputs in "Freq", "PWM", "4-20mA", "0-
20mA", "0-2V" and "0-10V" channel modes.
The following table specifies the relevant parameters for the module:
Configuration section
Modus/interface Parameter
Explanation
Measurement channels -
>Config.
digital
---
---
digital LP
Cnt.Day
Cnt.Intervl.
Freq
Out of
range
Procedure in the event of measurement
range violations
PWM
4-20mA
0-20mA
0-2V
0-10V
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