The Numeric Delta component calculates the change in value of the connected input at a frequency based on the calculationMode property.
The NumericDelta component is located in the vykonPro palette under the energy sub folder.
Delta Facets
BFacets property which is applied to the Delta slot
In
StatusNumeric input slot which is used to calculate the output value stored in the delta slot
Rollover
Double value property used to store the maximum expected value for the In slot. If the current In value is less than the previous In value, the delta calculation uses the rollover property value to calculate the change in value. When a rollovver is detected the delta is calculated as [Delta Value = (rollover - lastValue) + in value], otherwise [Delta Value = in value - last value].
Calculation Mode
Enum property which determines the mode of operation. In "manual" mode the calculation is performed only when the "manualCalculation" action is invoked. In "interval" mode the delta value is caculated at the frequency specified by the "executePeriod" property. In "cov" mode the delta value is calculated on a change of value on the "in" property.
Execute Period
BRelTime property used to configure the interval at which the delta value is calculated.
Manual Calculate
Invoking this action causes the delta value to be calculated.