SCADA

SCADA – Supervisory Control And Data Acquisition.

It’s a control system, a computer system for monitoring and process control. The process can be an infrastructure such as electrical power transmission and distribution.

SCADA is not a specific technology or protocol but refers to a type of application where data is collected from a system in order to control that system.

SCADA Functions:
1. Data Acquisition
2. Data Communication
3. Data Presentation
4. Control

SCADA System Components:

  • HMI – Human-Machine Interface
  • RTU – Remote Terminal Units
  • PLC – Programmable Logic Controller
  • Supervisory computer system – gathering (acquiring) data on the process and sending commands (control) to the process.
  • And a Communication infrastructure connecting the supervisory system to the RTUs.