PLCn
PLCn is an acronym that may refer to different concepts depending on context. It is not a single, standardized term in most fields, and its specific meaning should be inferred from the surrounding material. In some technical writings, PLCn is used informally to denote a networked arrangement of programmable logic controllers or to indicate a configuration involving multiple PLC devices.
In industrial automation, a PLCn typically denotes a distributed control network in which several Programmable Logic
Other uses of the acronym exist but are highly context-specific and not standardized. When encountering PLCn,