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In smaller SCADA systems, the supervisory computer may be composed of a single PC, in which case the HMI is a part of this computer. In larger SCADA systems, the master station may include several HMIs hosted on client computers, multiple servers for data acquisition, distributed software applications, and disaster recovery sites.
The HMI/SCADA Module Layer contains mainstay products of the Ignition Platform. Vision is the main visualization module, SQL Bridge is a bidirectional OPC to SQL database historian and transaction manager, Reporting generates dynamic Pdf reports, and Mobile allows access to HTML 5 compatible devices such as iPads, iPods, Android, Smartphone ...
Screenshot of WinCC interface. SIMATIC WinCC is a supervisory control and data acquisition (SCADA) and human-machine interface (HMI) system from Siemens.SCADA systems are used to monitor and control physical processes involved in industry and infrastructure on a large scale and over long distances.
CitectSCADA is a HMI / SCADA software package supporting an extremely wide range of Schneider Electric and 3rd party PLCs (using vendor's OPC driver or its own native drivers) and; a big collection of symbols of industrial equipments for drawing the application scenes
OPC (OLE for process control) client gives read and write of OPC tags for real-time simulation of SCADA/HMI virtual plants; Real-time analog signal and digital I/O under Windows; Serial (RS-232/RS-485) serial data read and write. Allows real-time reading and writing of serial data from the VisSim diagram.
A remote terminal unit (RTU) is a microprocessor-controlled electronic device that interfaces objects in the physical world to a distributed control system or SCADA (supervisory control and data acquisition) system by transmitting telemetry data to a master system, and by using messages from the master supervisory system to control connected objects. [1]
IEC 61850 is an international standard defining communication protocols for intelligent electronic devices at electrical substations.It is a part of the International Electrotechnical Commission's (IEC) Technical Committee 57 reference architecture for electric power systems. [1]
Today the functionality of Supervisory control and data acquisition (SCADA) and DCS systems are very similar, but DCS tends to be used on large continuous process plants where high reliability and security is important, and the control room is not geographically remote. Many machine control systems exhibit similar properties as plant and ...
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