SCADA project structure

The following diagram shows the structure of the SCADA project for each site. Each site has one or more clusters with their own specific servers.

NOTE: The “X” indicates the site name or site identifier. Each server name must be unique in each cluster and have its own specific ports.

Each cluster has the following internal SCADA servers (Primary and Standby):

1. I/O Server
   1. The number of I/O servers will depend on one of two limits: 200 devices per I/O server or 50,000 tags, whichever comes first. Once one of the limits has been reached, a new I/O server must be created.
2. Alarm Server
3. Reports Server
4. Trend Server