FactoryTalk View Site Edition is a SCADA system that collects data from multiple sources on the network and supports client server viewing of process information. It does away with the traditional SCADA paradigm of having a tag database. Instead, FactoryTalk Directory allows the HMI to browse the namespace of Allen-Bradley PLCs on the network. Because those points are already defined in the control system, they don’t need to be redefined in a tag list in the HMI. No tag definition means no tag licensing. Instead, FactoryTalk View is licensed based on the number of displays. FactoryTalk View SE works best when used with Allen-Bradley equipment.