PLC-自动配料系统外文资料

PLC automatic batching and weighing system designThere are many kinds of PLC definition. The international commission (IEC) is defined as of PLC programmable controller is a kind of digital computing operations, specially designed for the electronic system in industrial environment application and design. It USES programmable Qi, used in its internal storage to perform the logic operation, sequence control, timing, counting and arithmetic operation instruction, and through digital, analog input and output, the control various types or production process. Programmable controller and related equipment, should press easy and industrial control system as a whole, easy to extend its function principle design. PLC with communication networking function, it makes PLC and PLC, between the PLC and the PC and other intelligent equipment to exchange information between, forming a unified whole, realize scattered centralized control. Most PLC has RS - 232 interface, and some built-in have to support their communication protocol interfaces. Ingredients workers receive daily production scheduling, will in turn for each feedstock. According to how much weighing ingredients, first calculated the weight of each component in various components, and then the material barrels material taking, to electronic says on the packaging weighingAlong with the development of science and technology, Automatic batching and weighing system has been widely used in metallurgy, coal, chemicals, building material industry, etc. Automatic batching and weighing system can be set according to the input ratio and flow control of material flow, thereby achieve control of product quality and yield of the objective is to realize the automatic production proce...