SCADA would transfer command signals to the PLC or DCS according to the received field data. In case if there is any fault like a leak in a pipeline then the SCADA system would transfer this data to the home station and also would take the necessary action and control.
We can control or monitor an entire plant with the help of SCADA. The major functions of a SACDA are data acquisition, networked data communication, presentation of data, and control. So SCADA is software that is used to monitor the industrial process and if any changes should be made in the process then it would send a command signal to the PLC or other device. SCADA can monitor a plant or equipment in industries such as oil and gas, chemical plants, etc.
Supervisory control and data acquisition (SCADA) is software that can be used to control the industrial process.
