Technical Reference Manual - InduSoft

Alarms, Events, and Trends
For example:
Txtt2hst.exe 02950201.txt
The program creates a .hdr (header) file and converts the .txt file into a .hst binary file.
4. After the program converts the file, type Exit to close the DOS window.
See also:
Note: You cannot create a math script for the TXT2HST.EXE program and use it in a Math
worksheet to convert text files into binary format as you can for HST2TXT.EXE. The math script
shortcut is available for binary files only.
• Converting Trend History Files from Binary to Text
• Creating Batch History
• Configuring a Default Database for All Task History
Creating Batch History
IWS provides powerful tools that enable the user to create and manage batch historical information. The user
is able to create batches by using the following formats:
• Proprietary: When using the proprietary format, each batch will be stored on a different historical file. The
user can save historical data in both the normal historical file and batch files at the same time (see Trend
Folder for more information about these files).
• Database: The historical data used for the batch is saved in the same table as the normal historical data; an
additional table called BatchHistory keeps registers with the information about the batches. The list below
describes the fields on the BatchHistory table:
Field Name Data Type Description
Group_Number Integer Trend group number. This is the number of the worksheet that you are creating to specify the
tags that will be stored on your batch history.
Batch_Name String Name of the batch
Start_Time TimeStamp Date and Time that the batch was started.
End_Time TimeStamp Date and Time that the batch was finished
Pri_Table String Reserved
Sec_Table String Reserved
Description String Batch description
Deleted Boolean 0: Batch has not been deleted
1: Batch has been deleted
Tip: You can customize the name of the table and the name of the columns created in the database
by editing the project_name.APP file, as follows:
[Trend]
DefaultName=NewName
[TrendGroupPRI|SEC]
BatchHistory=TableName
For example:
[TREND001PRI]
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