What is the difference between HMI and Scada?

Answer Posted / sandesh mohite

Actually HMI stands for Human machine interface previously
it was called MMI(Man Machine Interface) but MMI turm was
out due to its sexiest tone.
so hmi is Monitoring station from where u can see the
process, control the process by giving cammands via
software cmpitable to it.

Where as SCADA(Supervisory Control And Data Acquisition)
Composed of mainly two parts MTU and RTU. MTU(Master
Terminal Unit)_ to control several RTU's(Remote terminal
Unit) with wire or wireless technology.
SCADA is composed of many HMI's.

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