Converting trend history files from text to binary

Use the TXT2HST.exe program to convert text-based history files back into binary format.

Before you begin this task, you must have both of the following:

• The text file (for example, 02950201.txt) that contains the historical data; and

• The corresponding header file (for example, 02950201.hdr) that provides the column numbers and names.

To convert a file, use the following procedure:

1. At the command prompt, change directory (cd) to the Bin sub-folder of the Studio program folder, typically at:

   cd C:\Program Files (x86)\AVEVA\AVEVA Edge 2026\Bin

2. At the command prompt, copy the TXT2HST.exe into the same directory where the text and header files are located.

3. At the command prompt, type TXT2HST.exe and specify the following parameters:

   • filename: Name of the text file

   • [separator]: Data separator character (default is <TAB>)

   • [/e]: Extended functionality (data value with more than 10 characters)

   • [/i:HH:MM:SS]: Start time of data value in hours (HH), minutes (MM), and seconds (SS)

   • [/f:HH:MM:SS]: Finish time of data value in hours (HH), minutes (MM), and seconds (SS)

     For example:

     TXT2HST.exe 02950201.txt

     The program combines the text file and header file in order to create a binary file with the same name (for example, 02950201.hst).

4. When the program is finished, type exit to close the command prompt.

   Note: You cannot create a math script for the TXT2HST.exe program and use it in a Math worksheet in order to convert text files into binary format, as you can for the HST2TXT.exe program. The math script shortcut is available for binary files only.