Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 355)

14 • S ETTING UP F ACTORY T ALK SYSTEM AVAILABILITY
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About FactoryTalk View SE system limits
In a network distributed application, a single application server computer that meets the
recommended requirements could host all of the following:
 One FactoryTalk View SE Server
 One RSLinx Enterprise data server. (Optionally, you can enable RSLinx Enterprise to
distribute device-based FactoryTalk Alarms and Events.)
 One OPC-DA server (RSLinx Classic or some other OPC data server)
 One FactoryTalk Tag Alarm and Event Server
 The FactoryTalk Network Directory
However, if the network distributed application requires more HMI, data, or alarm and
event servers, it is recommended that you use multiple host computers to distribute the
load.
For information about hardware and operating system requirements that might affect your
application, see the FactoryTalk View Site Edition Installation Guide.
FactoryTalk View SE redundant component limits
For best results when running redundant FactoryTalk View SE components in a network
distributed application, observe these limits:
 50 is the maximum number of FactoryTalk View SE Clients that can have
simultaneous access to a network distributed application.
 10 is the maximum number of redundant FactoryTalk View SE Servers that can be
used in a network distributed application. (Each redundant server consists of a pair of
primary and secondary servers.)
 1 is the maximum number of redundant FactoryTalk View SE Servers that can be
hosted on a single computer.
If you plan to deploy a network distributed application that uses more than two servers (or two
pairs of redundant servers) and 20 clients, it is recommended that you contact your local
Rockwell Automation Sales office for architectural assistance. For information about setting up
redundant FactoryTalk View SE Servers, see Chapter 14, “Setting up FactoryTalk system
availability” in the FactoryTalk View Site Edition User’s Guide.
You might use one computer to host multiple HMI servers while developing an application.
When deploying the application, however, ensure the primary and secondary HMI servers in
redundant pairs are hosted on separate computers.