將PLC 級式編程技術(shù)運用于液壓縱橫油缸進給加工系統(tǒng)，使控制軟件與工序動作有較好的對應關(guān)系，編程和調(diào)試效率高。與梯形圖相比，軟件語句少，掃描時間短，實時性較強。
關(guān)鍵詞：PLC；級式編程技術(shù)；控制系統(tǒng)
Abstract: PLC stage programming technology is an advanced regular design for design of PLC ladder diagram. It is proved by experiment that the stage programming method makes the PLC control software have a good corresponding relationship with the working sequences of
hydraulic-pressure and landscape orientation machinable， and makes the programming and
debugging work more efficiently. Compared with the ladder programming method， the software edited by this method has less sentences， little scanning time and higher effective performance on real-time control.
Key words: PLC; stage programming technology; control system