Information
Definition
A controller is hardware or software that manages charger operation, load control, communication or site-level coordination. In modern controller-worker terminology it can also replace the older term “master” in master-slave configurations, referring to the coordinating device or system that directs one or more worker/client devices.
Why it matters
It matters because controller-based architecture is common in load management, network sharing and multi-charger installations. Clear terminology helps UK users understand which device coordinates the system, avoids outdated master-slave wording and reduces ambiguity in technical documentation.