关键词: 条形码, 以太网, 可编程逻辑控制器, 现场总线

Abstract: To solve the problem of tracing the quality of every working procedure and single production on display tube product line, identified the single tube by bar code, collected the process parameter and check result of every tube on line in every working procedure, delivered the data to the database, established production document for every tube, realizes the quality traceability of the whole processing procedure and the whole life of display tube, improves the quality control of product line. To include the real-time information in bar code and stick label at the same position, used the industry computer and the robot to stick a label on the tube in production field. To avoid interfering by work, data were sampled through a multi-layers network which synthesize the field-bus and Ethernet and center on programmable logic controller. Adopted the WEB technique to realize data statistic and analyse, satisfies the data query demand of different user.

Key words: bar code, ethernet, programmable logic controller, field-bus, robot