Technical Reference Manual - InduSoft

Alarms, Events, and Trends
BatchHistory=MyTableForPrimaryDB
[TREND001SEC]
BatchHistory=MyTableForSecondaryDB
[Trend]
Group_Number=Trend_Worksheet
Batch_Name=Load_Number
Batch History Configuration
When you add a Trend worksheet (see Trend folder) and click the Advanced button, the following window will
display:
Trend Advanced Settings
In the Batch pane, you can configure the saving of the batch history:
• Start/Stop (input): Enter the tag that will start/stop your batches. When the tag in this field is set to TRUE
(different from 0), IWS will either start saving data to your batch file (if you are using proprietary format),
or add a new register to the BatchHistory table on your database, indicating that a batch has been started.
Note that historical data will be saved according to the configuration in the fields Save Trigger and Save On Tag
Change options on the Trend Worksheet.
• Name (input): This field represents the batch name; its meaning depends on the format selected on the Trend
Worksheet:
• If you selected Proprietary in the Type field, the Name should comply with the format [Path],
where:
• Path: An optional field. If the path is not specified, the batch history file will be stored in the same
path as the project_name.app file.
• FileName: Name of the batch history file.
• If you selected Database in the Type field, the value in this field will be stored in the Batch_Name field of the
BatchHistory table.
Tip: You can enter tag names between curly brackets in this field (e.g., C:\MyBatches
\{MyTagWithName}{MyTagWithNumber}.hst).
• Delete (input): When the tag specified in this field changes its value, the batch will be deleted. With the
Proprietary format, the batch history file will be removed. With the Database format, it will set the Delete field
in the BatchHistory table to true, but the saved historical data will remain. The Trend object only sees
batches that have the delete field set to 0 (zero).
• Existent (output): The tag entered on this field will receive the value 1 if the batch specified in the Name field
already exists; otherwise the tag will receive the value 0.
• Description (output): This field is available only when using the Database format. When the tag in the Start/Stop
field changes to TRUE, the register that is added to the BatchHistory table will display the string in this
field.
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