Substitutes S7-200 series of PLC for relay control logic, realizes the automatic control for batching.
使用S7-200系列可编程序控制器（PLC）代替原来的继电器控制逻辑，实现了配料的自动控制。
The hydraulic machines are equipped with two electric control systems-relay and PLC, and three operation modes-mechanic, manual and semi-automatic.
本系列液压机具有继电器控制PLC控制俩种电气控制系统，有调整、手动及半自动三种操作方式。
The temperature control relay switch device arranged in a circuit ensures that the warming mattress realizes the aim of automatic constant temperature control.
电路中设置的温控继电器开关装置，使取暖床垫达到了自动恒温控制目的。
应用推荐