Delphin ProfiMessage, Hardware Manual

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Profi Message
Numbers (constants) or variables can be used for times and values. The variables
are then defined via the
Variables tab. For time input, the variable may be used as
a value or as a trigger:
Variable (value) : Means that the value of the variables is used as time value. Vari-
able (trigger) means that the channel set for the variable is u sed as a trigger chan-
nel. A trigger event is a rising edge. If this trigger occurs, the value that is
programmed into the program step for the trigger is assumed as a setpoint and
the next program step is then started. This method enables time control of a pro-
gram sequence to be expanded by an event control.
Global settings
Cycle time : The cycle time determines in which time frame the values are output
between two program steps. Intermediate values are linearly interpolated, i.e. cal-
culated using a linear equation. The intervals between program steps used in the
table should be integral multiples of the cycle time.
4.7.20
Statistics
This software channel enables a source to be evaluated with a range of statistical
functions.
Moving minimum/maximum : This minimum or maximum is calculated from a con-
figured series of values numbering from 2 to 1000 values.
Moving indicates that each new value from the source is stored to the data series
and triggers calculation of the minimum or maximum from the accumulated values
and output of the result. If the number of values reaches the specified maximum,
the data series is then full and a new value from the source then overwrites the old-
est value.
A device reboot or a configuration change deletes all the accumulated values.
Block evaluation : The number of values in the data series is determined by the fre-
quency of new source values within an interval set by trigger events. A change in
the specified channel produces the trigger event. Several statistical functions are
available in this mode.
Edge triggering : The selected function is calculated at the time of the trigger event
from the data series that has accumulated between two trigger events. After cal-
culation, the result is output and all the accumulated values
​
are deleted.
Level triggering : When a level moves from an active to inactive state, the selected
function is applied to the values accumulated during the active level period. The
result is output and the accumulated values then deleted.
Generate intermediate values : When enabled, the results between the trigger
events are immediately output after calculation (with each new source value).
Refer also to
Trigger options .
Definitions
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Delphin Technology AG
Dezember 2015
Profi Message Manual