Microtronics 305001, User Manual

Page: 29 / 127

Chapter 6 Functional principle
6.1 Internal processing of the measurement values
Diagram of the internal processing of the measurement values
1 Increasing the resolution by oversampling
1)
6 Adds the values entered via the "Trim" and
"Sensor offset" configuration parameters to
the measurement value (see "Trim/sensor
offset module" on page 31).
1)2)
2 Decay module to summarise several
measurement values (see "Decay module" on
page 29)
1)
7 Monitoring of the alarm limits and trigger
levels (see "Alarm/trigger module" on page
32)
3 Temperature compensation to adjust any
thermal influences (see "Temperature
compensation module" on page 30).
1)2)
8 Recording of the measurement values (see
"Record module" on page 33)
4 Monitoring of the measurement range limits
(see "Overflow module" on page 30)
1)2)
9 This module chain is started at the time of
every measurement and is completed once.
5 Rescaling from the raw value to the
measurement value (see "Scale module" on
page 31)
10 Adding up the pulses at universal input 1 (see
"Counter module" on page 34). This module
is operated permanently if "Cnt.Day" or
"Cnt.Intrvl." channel mode is selected.
1)
These modules are skipped if "Cnt.Day" and "Cnt.Intrvl." channel modes are used
2)
These modules are only processed in channel modes "0...20mA" and "4...20mA".
6.1.1 Decay module
The decay module is designed to summarise several measurement values. The average value is
calculated over a specified time period. The decay module is not available for "Cnt.Day" and
"Cnt.Intervl." channel modes.
Rev. 02 29