T68 boring machine electric control system circuit is complex,its reliability and flexibility is poor with high failure rate. The mitsubishi FX2N-40 MR Programmable controller for the technical innovation of electric control system improves the work performance of the whole electric control system and the work efficiency. This paper introduces the mitsubishi FX2N-40 MR PLC in T68 boring machine electric control system,the application of the elaborated system’s hardware and PLC program design can provide work for technical reform of similar equipment.
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