IntraSCADA v5 licenses are not limited in time (one-time purchase). The license price is calculated for one server and depends on the number of input / output channels (tags).
The number of client (operator) workplaces, simultaneous sessions, system objects (mnemonic diagrams, logs, reports, etc.) and events in the archive is not limited.
A tag is a discrete or analog variable read from a physical input/output device. The number of tags in each physical device depends on the device itself.
Plugins are software modules for connecting physical devices.
Examples of projects