移位指令在可编程序系统设计师职业技能大赛中的灵活应用

The Flexible Application of the Shift Instruction in the Programmable System Designer Occupation Skill Competition

在越来越多的可编程序控制系统类职业技能竞赛中,参赛者不仅要有厚重的理论基础、良好的状态和灵活的头脑,更要有多变的编程技巧才能从众多参赛者中脱颖而出。以通信分频、料盘工位标志位处理和状态处理等三种移位指令不同的应用来介绍移位指令。在技能竞赛中灵活运用移位指令,在实现控制功能的同时,使程序结构紧凑,减少录入时间,能达到事半功倍的效果。

In a growing number of programmable control system of occupation skill competition,contestants must have not only the theoretical basis,the better condition and flexible mind,but also have the changeable programming skills,the talent can show itself from the other contestants.This article instruct the shift instruction through the frequency divider of the communication,the sign bit of the tray station and the processing of the state of the SFC,flexible application of shift instruction not only can realize the function of the system,but also make the program has compact structure,reduce the entry time,to achieve a multiplier effect.