Clusters - Clustering allows you to group independent sets of Citect SCADA's server components within a single project, allowing multiple systems to be monitored and controlled simultaneously.Redundancy - the servers associated with a system can be duplicated and defined as primary and standby units, allowing the system to keep running if one of the servers becomes inoperative.Operational requirements - a standalone system may contain a single computer that hosts every component of a system, whereas a distributed system may have a separate computer dedicated to each server type.How you arrange these sever process types across the computers included in your system topology will be determined by the following: There are several different types of server processes used in a Citect SCADA system. A topology allows you to view how your servers and clients are arranged. Servers are used to manage communication with plant equipment and collate production data, while clients provide the interface to assess and interact with the system. In a Citect SCADA system, a computer can act as a server, or a client, or both.
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