HMI vs SCADA

[PaulKim1003 3]

Hello guys,

I have a question about SCADA.

Does Scada run only on a computer??

Thanks

 

[kaiser_will 65]

Typically SCADA runs on a PC and has ability not only to provide visualization, like an HMI, but also has supervisory control (i.e., data historian, event/event historian, trended data).  Some HMI packages have features that rival SCADA.  SCADA is typically more expensive, hardware and software, than HMI.