Internal processing of the measurement values

Diagram of the internal processing of the measurement values

1 Filter to compensate for brief signal fluctuations (see Filter module). The filter module is operated permanently. 7 Monitoring of the alarm limits and trigger levels (see Alarm/trigger module)
2 Monitoring of the measurement range limits (see Overflow module) 8 As the record interval and measurement cycle can be selected individually, the measurement values and setpoints are not recorded at the time of every measurement (see Record module).
3 Rescaling from the raw value to the measurement value (see Scale module (inputs)) 9 Specification of the setpoints for the outputs (see Setpoint module)
4 Adds the values entered via the "Trim" and "Sensor offs." configuration parameters to the measurement value (see Trim/sensor offset module). 10 Rescaling from the setpoint to the physical size for the output (see Scale module (outputs))
5 Decay module to summarise several measurement values (see Decay module) 11 This module chain is started at the time of every measurement and is completed once.

For universal inputs that are operated in Digital mode, this module chain (with exception of the control module) is also executed at second intervals to be able to react to level changes as quickly as possible.
6 Determination of the setpoints, (see Control module)

Tip: Additional explanation on universal inputs that are operated in Digital mode.
Measurement channels -> Basis Mode Digital
Measurement channels ->Config.Filter time 800 ms
Input signalInput signal at the universal input
Input signal after filterInput signal taking the "filter time" into consideration
Logic levelThe input signal at the universal input is analysed once per second.

Filter module to compensate for brief signal fluctuations disabled ("filter time" = 0)

Filter module to compensate for brief signal fluctuations active ("filter time" not equal to 0)

Explanation: To react to a level change at the universal inputs as quickly as possible, the module chain detailed in Internal processing of the measurement values (with exception of the control module) for the relevant universal input is operated once per second in Digital  operating mode. This ensures that alarms and triggers are detected asynchronously to the measurement cycle. The signal must be present for at least 1 second to definitely detect a pulse safely. Additionally, any brief faults can be eliminated with the help of the "filter time".