The Batch Historian creates a entry in the Event Chronicle when significant batch events occur. These events are available to client applications through the DeltaV OPC Alarms and Events server. To enable Batch Historian events, set "Log=True" in the Batch Historian configuration file, DVHExecutive.ini (in DeltaV\BatchHis\Bin). Changes to the .INI file will take effect within 30 seconds. The default setting is disabled, that is, "Log=False". The Batch Historian configuration file is shown in the following example:
[RemoteAccessHistory]
Log=False
The Batch Historian creates an entry in the Event Chronicle for the following significant Batch Historian events. Refer to the Process History View application's online help for information on the contents of event records.
Batch history started
Batch history complete
Procedure history started
Procedure history complete
Unit procedure history started
Unit procedure history completed
Operation history started
Operation history completed
Phase history started
Phase history completed
Campaign history started
Campaign history complete
When a cold restart is performed on a batch, all step counts are set to zero. If the same step is run both before the cold restart and after, both instances of the step running are logged as the first run of the step (Step:1-1). When the detail Gantt for this step is viewed in Batch History View, it displays the start time of the first run (prior to cold restart) and the end time from the step running after the cold restart.