All operator stations are based on modern SIMATIC PCS 7 industrial workstations, which are optimized for use as OS single station, OS client or OS server and can be used in an office or industrial environment.
A multi-user system is made up of operator terminals (OS clients), which can be supplied via a terminal bus with data (project data, process values, archives, alarms and messages) from one or more OS servers. The OS server can also be operated in a redundant mode if increased availability is a requirement.
In single-user systems, the entire operating and monitoring functionality for a project (plant/plant section) is concentrated in one station.
The operator system can be either single-user or multi-user type.