Abstract
Using the intelligent ingredient controller (CB920) and OMRON PLC coordinates to realize functions of the weighing, the formula memory, communication, control, and so on,with characteristics of low in price,redundant reliability,high performance and intellectualization. The paper expands the Connection of superior machine RS-232 using the MOXA card, and realizes the communication between the superior machine and the lower position machine, and controlling to the intelligent ingredient controller (CB920) .According to the request of technique of concretes production, it has completed the design of PLC trapezoidal chart. The control system has the function of adjustment, manual and the automatic controlling with the software designing, satisfies the requests of technique of production, and moves stably reliable. And, the adjustment working uses in testing run and the service and so on; the manual working uses in the auxiliary production, and the automatic production is the main production method. Researching and developing the distributional automatic ingredient system has very important practical significance to improve the work condition, enhance the product quality and the production efficiency, consummate modern business management. The paper has the summaries of the ingredient system's application background, the trend of development, and taking the concretes technique of production as the object of study, it has carried on the analysis to the automatic ingredient system's function demand, so the realizing plan of the hardware and ingredient system's gross structure have been designed based on this.
