PLC定时器的复用问题  

On the Multiplexing of PLC Timers

作　　者：王灏[1] 

机构地区：[1]华南理工大学

出　　处：《电气传动》1995年第6期37-39,共3页Electric Drive

摘　　要：本文分析了PLC系统监控程序的运行机制及其对指令扫描影响的特点,指出了利用单一的定时器实现连续分段计时的可行性。并以F1系列PLC为例给出了梯形图,从而证明了在PLC批处理方式下仍可复用软件定时器。扩大了软件定时器的使用灵活性。Here presented is the analysis of the feasibility to achieve sectionalized continuous timing by means of a single PLC timer. With consideration of PLC system monitor program and its effect on instruction scanning, it is proved that PLC timer multiplexing is applicable even in hatch mode.

关 键 词：定时器 程序控制器 电力系统 

分 类 号：TM571.61[电气工程—电器]