Control System Design of Feeding Conveyer in Tomato Automatic Sorting Assembly Line Based on the LOGO!

To effectively monitor the operation of feeding conveyer in automatic tomato selection assembly line and to avoid loss caused by machine’s breakdown, monitor control system was designed for the production line. The hardware circuit was designed using LOGO！ as the core control device, then the software was development. And two working modes (automatic start and manual start) were assembled in the system. Finally, the system was tested in the tomato automatic sorting assembly line. The results indicate that the system can start the machine quickly and respond immediately to break-down.