If the project makes it necessary to operate a large number of Web operator stations at the same time,   multiple SIMATIC PCS 7 Web servers can also be configured and networked with one another. With the "Load Balancing" function, the load caused by the Web clients can be distributed evenly over the configured Web servers. This also results in high availability of the Web clients. If a server fails, the Web clients assigned to it are automatically diverted to another server.