Knowing the difference between SCADA and HMI…

All this while, we have come across the terms SCADA and HMI, and also seen the details of it. But what about the points of difference between SCADA and HMI? It is important to know it as well. To acquaint you with it, we have dedicated this blog to the same topic.

A SCADA (Supervisory Control and Data Acquisition) System is the one belonging to the Automation or Industrial Control System category, that might consist of directly control or have a communication with one or more of the below:

Data Acquisition Systems (DAQs)
Industrial Cloud Computing Environment
Historians and Data Storage Servers
Networked industrial machines and automation
Remote telemetry along with control using burst or continuous communications
There is a possibility that a SCADA system can be all the time connected to all of the components in the ICS, or on the other hand at times connected to some or all, and updated through a burst communication over radio or cellular modems (2G/3G/4G, GSM and CDMA technologies) to field equipment and devices.