Terminal resistance automatic coupling method and system of programmable logic controller (PLC) expansion bus

The present invention discloses a terminal resistance automatic coupling method of a PLC expansion bus. The method is applied to a PLC control system which is formed by concatenating a PLC and a plurality of expansion modules via the expansion bus and possesses a bus topology structure, and comprise...

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1. Verfasser: HUANG CHENGXIONG
Format: Patent
Sprache:eng
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