800xA Data Direct add-in throwing error
At ABB Library there are several "Third Party Software Versions" documents published (which are specific to the System 800xA version), e.g. this one valid for 6.1.1: System 800xA 6.1.1 Reference - Third Party Software Versions, 3BUA000500-611.
This link takes you to all of them (I saved the results of a search for you).
These documents are all tagged Premium, for which you will need a subscription to download. Please speak with your regional ABB sales representative about gaining access.