This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
The manual says what products are compatible:
https://www.victronenergy.com/media/pg/GlobalLink_520/en/product-compatibility.html
If I understand correctly the multi plus II does not fit into any of these list of categories.
Globalink Product page
Globalink Online Manual
Additional resources still need to be added for this topic
28 People are following this question.