To realize a power saving operation by simple handling, a PLC system includes: power-circuit control units 204, 304, and 504 that supply and stop supplying power to each terminal; input/output circuits 202, 302, and 502 that detect whether the terminals 20...

An inverter communication system is provided. The system includes a plurality of inverters connected to each other through a communication line, and assigned with different original identifiers for mutual distinction, wherein each of the plurality of inver...