This paper proposes a new approach to the design of relaylogic control circuits.
提出了一种继电器控制逻辑设计的新方法。
2
The PLC is applicated in the steel tube galvanization process replace of traditional relaylogic control to realize the automatic operation and fault treatment.
介绍采用PLC替代传统的继电器逻辑控制对钢管热镀锌的生产实现自动运行及故障处理。
3
This device consists of self-coupling transfer, digital logic circuit and low voltage relay circuit.