基于PLC自动配料控制系统的设计与实现.pdf

28 3 河 北 工 业 科 技 Vol. 28, No . 3 2011 5 H ebei Journal of Industrial Science and T echnolog Ma 20 11 : 2011) PLC , , ( 河北科技大学信息科学与工程学院, 河北石家庄 0500 18) : 设计了一个骨料粉料配料系统, 系统采用DCS 结构, 动态移动配料称量车, 计量精度较 高, 定位准确对带有公共料仓的双通道取料控制, 建立了一个基于计数器的控制模型, 较好地解 决了公共料仓的取料冲突及称量车的等待问题, 采用循环优先级使整 个系统的设备利用率较高, 整 个设计 根据生产工艺要求在较宽的范围内调整 : PLC; DCS; 计量精度; 计数器模型 : T P23 : A Design and implementation of aggregate and pow der burdening s stem based on PLC GA O Hongbin, ZHANG Yongqiang, ZHANG Jia ( College of Information Science and Engineering , H ebei Universit of Science and T echnolog , Shijiazhuang H ebei 050018, China) Abstract: This paper presents the design of a aggregate and powder burdening s stem. T he s stem adopts the advanced DCS st ruct ure and dist ributes the function reasonabl . The mobile burdening w eighing scale vehicles have high measurement preci sion and positional accurac . For the cont rol of dualchannel charging w ith the public material bin, a counterbased control model, w hich can solve t he problems of public bin charging and weighing scale vehicles wait ing is established. The rotat ing pri orit enhances t he equipment utilization rate and the im plementation can be adjust ed in a certain range according to t he require ment of production technolog . Key words: PLC; DCS; measurement precision; counter model , , , [ 16] , , , , , , , 3 : , , , , , , 3 , , 1 : : : 700 kg, : () 280 kg, 490 kg,