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本文以三曲柄双边滚切剪为背景，以ＣＰ－５２５通讯模板为主要对象，在通讯软件ＣＯＭ５２５的支持下，实现了两台Ｓ５－１１５Ｕ可编程控制器的串行异步通讯。
In this paper, bilateral crankshaft cutting with three cranks are taken as the background, CP-525 communication template is the main object, serial communication between two S5-115U programmable controllers is realized with the support of communication software COM525.