RSView Supervisory Edition Installation Guide

5 • WORKING WITH DISTRIBUTED APPLICATIONS• • • • •Adding a data serverEach area in a distributed application can contain more than one data server.To add an RSLinx Enterprise data server1. In the Explorer window, right-click the application root, or right-click an area name,click New Data Server, and then click RSLinx Enterprise.2. Provide a name and description for the server, and then specify where the server islocated.5 • PlaceholderTo add an OPC data server1. In the Explorer window, right-click the application root, or right-click an area name,click New Data Server, and then click OPC.2. Provide a name and description for the server, and then specify where the server islocated.For information about setting up RSLinx Enterprise and OPC data servers, includingRSLinx Classic data servers, see Chapter 7, Setting up communications, or see Help.When to use additional HMI or data serversA distributed application does not require more than one HMI server or data server, butthere are circumstances in which it is helpful to use additional servers.For example, adding servers allows you to provide redundant operation for HMI serversor data servers at run time. It also allows different integrators to work on different HMIservers, without worrying about name collisions or needing to integrate all the files later.Adding HMI servers or data servers for redundant operationYou can set up redundant HMI servers or data servers to enable an application to use asecondary server in the event that the primary server goes out of service. You must set upredundancy separately for each HMI server or data server in an application.For details about adding:• HMI servers to an application, see page 5-9.• OPC data servers to an application, see page 7-9.• RSLinx Enterprise data servers to an application, see page 7-5.Adding HMI servers or data servers for load balancingOver time, an HMI project might increase in size, or the number of clients connecting tothe HMI server or data server might increase to the point where the computer running theserver becomes overloaded.5-11