StruxureWare SCADA Expert ClearSCADA

The ClearSCADA server performs all of the SCADA functions with exception of operator interface, and runs as a windows service under the operating system.

The ClearSCADA server is integrated with all the major components of software needed for a typical SCADA system. This not only saves you additional licensing costs but also simplifies the configuration effort and reduces the time to deploy. The diagram below highlights the internal components of the ClearSCADA server (shown within the box outline). In the centre is the real-time database which is updated by the Data collectors or protocol drivers.You will notice there is a broad offering of IO servers from AES for Oil & Gas flow computers and RTUs and native drivers for industry standard protocols such as MODBUS, DNP3, IEC870, and OPC etc.The Network and Server performance includes an SNMP and ICMP driver which is ideal for network devices such as data radios, network switches/routers, UPS etc. and the Performance Monitor driver is like the he Task Manager in Windows which can in monitor in real-time, trend and alarm any variable in the operating system on the server PC.

The real-time database resides in memory on the server and includes a rich set of metadata such as time-stamp, quality flag, alarm state etc., when communications is lost to the PLC/RTU the quality flag for the associated data points will change to "Last known value" and the point value is retained; th