Currently,the domestic food processing production control system are carried out by manual operation or by the industrial computer, console and distribution cabinet consists of several. Although the system can meet the process control system, but has the shortcomings of a bulky, low reliability, difficult to amend. PLC-based control of these defects and the background of the rapid development of technology, In this paper, the "PLC + touch screen," such an economical and reliable control system for food processing production program, and a detailed analysis of the demand for such a control system, according to the needs of the system software and hardware structure of systematic and comprehensive analysis and design.
First of all, the discourse gives the background and significance of topics, and gives the discourse the main work to be done; Followed by an analysis of the control flow control system, technical requirements are given through the analysis of the overall design program; Finally, the thesis of the program flow and friendly man-machine interface design for a comprehensive exposition can be seen on the screen display control process steps. Debugging by simulation show that the control system design is correct and effective.
The success of this research can greatly increase productivity, save labor, to meet the needs of the market.