Optional folder for Historian

The CD-InTouch folder contains a database purge utility that Historian uses (this utility is not called when block-based event history is utilized). Without this folder, Historian cannot purge the A2ALMDB alarm database and an error will be generated (this does not occur with block-based history). If you are installing Historian Client only, this utility is not called and the folder can be deleted without any issues.

Note: If you are installing Historian and the CD-Intouch has been deleted, you will not be able to purge the A2ALMDB alarm database and an error will be generated (does not apply if you are using block-based history). However, the installation will complete successfully.