Eserver - Honeywell Experion LX Client Manual

Servers
DSA-specific rules and restrictions
The following rules apply where you have DSA-connected servers:
Every point that will be accessed from more than one server must be assigned to an
n
asset.
When creating a new point, it can have the same tag name (point ID) as a point on
n
another server, but it cannot have the same tag name as a point on the same server, or
the same tag name as any existing asset or alarm group within your Enterprise Model.
When creating a new asset or alarm group, it cannot have the same tag name as any
existing asset or alarm group within the same system connected via DSA, or the same
tag name as any existing points on any of the servers connected via DSA.
So, for example, you can have the tag name FIC123 on ServerNorth as well as on
ServerSouth because Experion will identify the first as
ExperionServerNorth:FIC123 and the other as ExperionServerSouth:FIC123,
thus making each tag name unique within the system. You cannot, however, have an
asset or alarm group called FIC123 because assets and alarm groups are downloaded
to every server in the system, and downloading an asset with the tag name FIC123
would conflict with the existing FIC123 points on ServerNorth and ServerSouth.
System tables (such as the message, acronym, and reason tables) that reference an item
n
by number must be identical on every server.

eServer

An eServer is a special Experion server that gives casual users read-only access to displays
and reports using a browser such as Microsoft Internet Explorer.
An eServer also simplifies administration because it consolidates the management, security
and licensing of casual user accounts.
An eServer provides two levels of access:
Premium.
n
Provides access to displays that are updated in the normal manner.
Standard.
n
Provides 'snapshots' of displays that are not updated. (To check for changes to data, the
user must request a new snapshot by using the browser's refresh function.)
An eServer license allows an unlimited number of standard access connections. Premium
access connections are purchased separately.
The eServer software must be loaded on a separate computer, not on one of the Experion
servers in your process control network.
Honeywell 2017 27