I have to calulate the productionrate in kg/h with inputvalue BatchStart ( Timestamp ) BatchEnd (Timestamp ) produktionrate (single). the problem is, I only have then full product amount for the batch ( 28000 kg ) and I need the timespan of the batch. This can generated at batchend by substraction endtime and starttime and the rate by division batchamount by timespan. A additional business software read the rate only as retangele signal. so I generate values like this on a PI-Tag.
0.0 01.01.2020 06:30:24 (generated bei event batchstart output delay '*-1s')
0.0 01.01.2020 06:30:25 batchstart (generated bei event batchstart, rate is not knowing )
1563 01.01.2020 21:51:10 batchend (generated bei event batchend, rate is calculated )
0.0 01.01.2020 21.51.11 (generated bei event batchend output delay '*+1s')
The problem is that I can't writeback the rate of 1563 kg/h to timestamp batchstart, because the delay for output timestamp must be a fix string. like '*-1s'
Is there any way to write back values to a past timestamp in AF analytics