可编程序控制器（ＰＣ）的编程原理及其应用（十八）北京齿轮总厂常锋（接上期）图２．５４是以ＴＯＯ的现行值存入ＡＲ后，和存入Ｔ４０（程序中从未用过此编号的定时器，中的常数１９秒进行比较为例。通常是ＦＵＮ３５指令和把定时器的现行值送入ＡＲ暂存的ＦＵＮ８１指... Programmable Logic Controller (PC) Programming Principles and Applications (18) Beijing Gear Plant Chang Feng (Continued) Figure 2.54 is stored in the current value of TOO after AR, and stored in T40 (program This timer has never been used, the constant 19 seconds for comparison as an example. Usually FUN35 instruction and the timer’s current value into the AR temporary FUN81 means ...