Batch IDs

If you had a BatchID going into a Historian tag, that BatchID will either have a timestamp at the beginning of the batch or at the end of the batch. Different batch systems report the BatchID as the batch is started, and other systems do not report the BatchID until the batch is finished.

If your BatchID is reported at the beginning of a batch, you would need to use the AfterTime option because you would want to include all data for a particular BatchID after the time the BatchID was reported up until the next BatchID was reported. If your BatchID was being reported at the end of the batch, you would want to use the BeforeTime option because you would want to include all data for a particular Batch ID before the time the Batch ID was reported back to the previous BatchID being reported.