You connect an Advanced Display to a AS-P server or AS-B server in order to communicate with EcoStruxure BMS servers over a USB connection, to supply the Advanced Display with power, and to ensure that its battery is charged.
You create an extended trend log to store log records for a longer period of time and free up memory in the automation server. Extended trend logs are also required for generating reports using EcoStruxure Building Operation WebReports.
You create a domain to group EcoStruxure BMS servers, users, and user groups in one domain so that all users and user groups of the domain have access to all EcoStruxure BMS servers within the domain. You can connect the domain to a Windows Active Directory domain to make user accounts from the Windows Active Directory accessible to the EcoStruxure Building Operation software, and to allow users to log on to WorkStation with their Windows user account. You cannot directly add an automation server to a domain in an Enterprise Central.