SCADA stands for Supervisory Control And Data Acquisition. The primary purpose of SCADA is to monitor, control and alarm plant or other process systems from a central location. As the name indicates, it is not a full control system, but rather focuses on the supervisorylevel. As such, it is a purely software package that is positioned on top of hardware to which it is interfaced, in general via Programmable Logic Controllers (PLCs), or other commercial hardware modules.
SCADA systems evolve rapidly and are now used not only in most industrial processes: e.g. steel making, power generation (conventional and nuclear) and distribution, chemistry, but also in some experimental facilities such as nuclear fusion. The size of such plants range from a few 1000 to hundreds of thousands input/output (I/O) channels.
For your mission critical industrial processes, where reliability and performance are paramount, saXon can design, devolop and implement reliable and robust automation solutions that complies with the standards and your requirements and economical in development and maintenance.
- Various RTU's (Remote Telemetry Units) : Each RTU effectively collects information at a site, while communications bring that information from the various plant or regional RTU sites to a central location, and occasionally returns instructions to the RTU.
- Communications system : Communication within a plant will be by data cable, wire or fiber-optic, while regional systems most commonly utilize radio & wireless.
- HMI (Human Machine Interface) : The HMI is essentially a PC system running powerful graphic and alarm software programs. The HMI displays this information in an easily understood graphics form, archives the data received, transmits alarms and permits operator control as required.
