When using PXL controllers there are certain limitations related to the assignment of access groups. A cardholder can have up to 8 access groups assigned as long as no doors exist in more than one group and providing the doors for a particular controller are added to the same group.
An unlimited number of PXL access groups can be assigned when each group contains a separate PXL controller and as long as a controller does not exist in more than one group.
You cannot select multiple groups if PXL doors exist in two different access groups.
In the image above, controller 8 has its doors in different access groups and so these two access groups cannot both be assigned to the same cardholder. If a cardholder requires access to both these doors they need to be added to the same access group. As shown below: