abstract
Since the programmable controller (Programmable Logical Controller) has been the 1970s take the microprocessor as a core, the comprehensive computer technology, the automatic control technology and the communication develop one new industry automatic control device, because it has function, the reliability is high, the disposition is flexible, the easy to operate as well as the volume are small, weight light and so on merits, enables it to obtain the widespread application in automated control each domain. In recent years as a result of microelectronic technology's development and the progress, enabled to have the complete function ultra large scale integrated circuit's price to be day by day cheap, similarly also promoted the programmable controller cost to reduce greatly, regarding used the programmable controller to replace the traditional relay - contact device electric control the system to transform the traditional engine bed, regardless of economically, the reliability, Maintainability, in the working life, is very economical and cost-effective, was also the feasible optimal plan. This article has designed one based on the PLC solution automatic bottle installing equipment. Entire control system CPU uses Simens S7-200 the series PLC controller. Examines the solution whereabouts number by the photoelectric sensor, and through nixietube real time display.
