2014年6月25日星期三

PLC analog input module - Input circuit

Input in the form of circuit 
PLC input circuit classification, according to the type of programmable logic controller manufacturer power supply, can be divided into the DC input circuit and the AC input circuit; Press PLC input module common terminal (COM client) current flow can be divided into source and drain input circuit input circuit; by plc analog input output module emitting diode common connection method can be divided into common anode and common cathode input circuit.

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