A Building Management System in Plain Terms
What a BMS actually supervises, how BACnet, Modbus, and KNX bring plant onto one screen, and what an operator should see when something fails.
Automation Systems: PLC, HMI, Drives, and SCADA
A plain-language sheet on how a PLC, an HMI, variable speed drives, and a SCADA screen divide the work of running a process.