For each variable and thus for each aggregation function, you can activate the "The value is aggregated" function:
"The value is aggregated" = not activated | "The value is aggregted" = activated |
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When the "The value is aggregated" function is not activated, actual values are transferred every 10 minutes, for example. The respective actual value is valid for 10 minutes until the next actual value is transferred. If the time of the last reading operation is identical to the end of the specified period, the last value is not read. | When the "The value is aggregated" function is activated, no actual values are transferred, but the value that has already been calculated or processed in the last 10 minutes is transferred. Application example: A temperature measured value is recorded in the plant every minute, and an average value of the recorded values is then transferred every 10 minutes. |
Different results are calculated for the same time range, depending on the initial situation of how you want to collect data. Only the values marked in green are taken into account for the calculation of the result. |