Research of PLC Control and Monitor System for Diamond Wire Saw

The monitor and PLC control systems on board for the diamond wire saw underwater were designed which can detect the signals of sensors and control the diamond wire to cutting the composite piping underwater in automatism or manual manner. LCD was used as the interactive platform which insured the observation system display the working parameters accurately so that the working status of the underwater diamond wire saw could be monitored instantly and accurately. PLC system was designed, which was placed in control cabinet on ship. The PLC system can receive commands from the host computer and auto control the motor, hydraulic electromagnetic valve and pilot lamp; complete the manual control these functions by function key also. In the end, auto wire sawing experiment underwater was done and it could cutting the composite piping according to the cutting tension adjusts the feed velocity, it could make the system worked in reliability and the pipe auto cutting was realized.