ABB COM600 series Data Historian Operator's Manual page 88

COM600 series, Version 5.0 1MRS756739
Data Historian Operator's Manual
In case of sum of the values, the update function produces equal values every time period
covered by the time span.
SumTrendAfterUpdating.jpg
Figure 5.7.1-11 The sum of values after updating
The following figure shows an example of updating a scenario table data. The example
shows three trends for the same variable: one from the base table (white), one from the
scenario table (red), and one which is combined from the previous two (black). The
88