PLC and SCADA
Along with SCADA systems, within industrial automation and IIOT, there are many PLCs.
PLC stands for Programmable Logic Controller.
SCADA software communicates with the PLC through communication protocols. Just like the HMI (Human Machine Interface). As its name implies, SCADA (Supervisory Control and data acquisition) is used to supervise and control, in real time, the industry data or IIOT equipment, and this is mainly done through communication with PLC.
There are several PLCs on the market that communicate with SCADA systems: