... PLC control box:the function as followed:1.Chinese and english LCD penal, diaphragm keyboard input.2.The ... irrigation rate, rain capacity, number of turns, and the time and so on.3.It has the function of ... massage to alarm6.Control the diesel generator, fertilizer and drug metering pump.7.Adopt encoder angle control for ... cantilever, sprayer head, end spray gun startup delaying and electric valve.