Products provide the means by which process personnel interact with the PLC control system. A well designed combination of PLC’s and HMI’s can be a solid foundation for your process automation needs.

Data from all of these systems is then sent to the central SCADA unit. That SCADA unit has its own HMI. This is why a lot of people get confused and think SCADA and HMI are one and the same.

That HMI or “Human Machine Interface” unit on the SCADA can monitor and control anything that is connected to it. In conclusion, HMI can be part of SCADA but SCADA cannot be part of a HMI. It’s that simple.

Today, Industrial Automation has taken over the production process in industries and it is very difficult to imagine a production line without automation systems. There are several factors that lead to the implementation of automation system in industrial production like requirement of high-quality products, high expectations in product reliability, high-volume production etc.