network requires different IP addresses for communication to RTUs or controllers from
different server locations. For more information, see the description of the controller’s Name
property in the respective interface reference guide.
Distributed System Architecture
Distributed System Architecture (DSA) is an option that enables multiple Experion server
systems to share data, alarms, alerts, messages, events, and history without the need for
duplicate configuration on any server.
DSA is appropriate for:
n
Large-scale plant-wide systems in which the servers are connected through a high-
speed LAN
n
Geographically-distributed systems in which the servers are connected through a WAN
(DSA has been designed to minimize network traffic, and supports WANs with speeds
as low as 64 Kbps.)
Typical geographically distributed system
Site B
Site A
Site C
WAN
Master Control Center
For more information about DSA, see 'Configuring Distributed System Architecture' in the
Station Configuration Guide.
Inter-release support
DSA interoperability works between the current release and previous releases of Experion.
For example, you can have a DSA system in which some servers are running the current
release while others are running the previous (or an even earlier) release of Experion.
Please consult the Experion LX Software Change Notice for specific details about which
releases are supported.
Servers
Honeywell 2017 25