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PLC作为工业中使用最广泛的控制设备,为保证其工作的可靠性,在设计控制电路时,必须设计一套完整的安全电路,以保证PLC的正常工作。
PLC as the industry’s most widely used control equipment, in order to ensure the reliability of its work in the design of the control circuit, we must design a complete set of safety circuits to ensure the normal operation of PLC.