Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 78)

F ACTORY T ALK V IEW S ITE E DITION U SER ’ S G UIDE
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If necessary, you can add one RSLinx Enterprise data server, or one FactoryTalk Tag
Alarm and Event Server, which also must be installed locally. In a local station
application, only OPC data servers can be installed on other computers.
For more information, see Chapter 8, Working with local station applications.
Running network applications
A network application can be one of several managed by the same Network Directory, or
it might be the only application using the directory server.
Multiple applications, one Network Directory computer
A single Network Directory can manage multiple applications that represent different
control systems, all hosted on the same network.
This means you could develop one application while another is operating in a production
environment. Alternatively, you could run multiple applications simultaneously, with each
application controlling a different facility within a corporate network.
Application users can be members of different domains. If you are not using domains, all
of the computers that connect to the network distributed application must be in the same
Windows workgroup.
Multiple applications, multiple Network Directory computers
A network can also contain more than one computer running the Network Directory
software. This is useful for running multiple network distributed applications that:
 Are separated by a slow network, for example, a wide-area network (WAN).
To do this, set up one Network Directory at each site on either side of the WAN.
 Do not need to share data with each other.
Specifying the location of the FactoryTalk Directory server
For FactoryTalk View SE network applications, you need to decide which computer will
host the Network Directory server.
Each computer on the network can connect to only one computer running the Network Directory
software. You cannot connect a single computer to multiple FactoryTalk Directory servers.