SCADA HARDWARE:
SCADA is both Software and Hardware. SCADA hardware includes all the hardware equipment required in the SCADA system for Data Acquisition, communication of the data between the master station and field devices, Master control station hardware and other display units and printing devices for Human Machine Interface (HMI).
Some of the Hardware components employed in the SCADA systems are listed below:
Remote Terminal Units (RTUs): Remote Terminal Units (RTUs) are the micro-controllers present at the remote side or field of the process system. They acts as an interface between the field analog and digital sensors located at the remote end.
Communication System: Communication system plays an important role in connecting the field devices and the control station. Communication system can be of fiber optic cable, wire, radio or even the satellite connecting the master station and the remote equipment
Master Stations: These Master Stations gather the data from the field devices (RTUs or PLCs) and process the data and display the processed data to human operator. This include data processing computer systems.
Hardware components in SCADA is detailed as
- Field devices and transducers
- RTUs or PLCs
- Communication system between the Master Station and Remote devices
- Central Control Station
- Data Processing computers.
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