BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN
38 EN1B-0198GE51 R0801
may not be desired that every user will be allowed
to do everything with a BNA device.
These user accounts are required only for set-up,
configuration and diagnostic applications if
available. The communication protocols allowing
the communication between BNA and its building
management system are protected at the protocol
level depending on the type of application
firmware.
It is recommended to define several user roles
because also an application firmware may use these
user definitions to behave different in potentially
provided user interfaces depending on the user
who is currently logged in.
A BNA device allows up to 5 user definitions with
different access rights. The root user already
occupies one of these 5 definitions. Thus, 4
additional users or better to say user roles can be
defined.
A user definition consists of three elements. These
are a username or role name, a group membership
and finally a password.
Usernames and password are freely definable. Both
are maximal 8 character long. Whereas the group
definitions are predefined each of it has specific
characteristics.
Table 6-2 gives an overview of the available user
groups and their properties.
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