| PLC控制系统循环扫描时间的分析与设计 |
| |
| 引用本文： | 刘红军,何文庭.PLC控制系统循环扫描时间的分析与设计[J].电力科学与工程,2002(1):25-26,38. |
| |
| 作者姓名： | 刘红军 何文庭 |
| |
| 作者单位： | 1. 华北电力大学动力系,河北,保定,071003
2. 上安电厂,河北,石家庄,050011 |
| |
| 摘 要： | 给出了设计PLC可编程控制器控制系统循环扫描时间的 3个限制条件。满足这些条件就能减少I/O响应时间、防止输入信号丢失、保证定时器正常工作。介绍通过理论研究和工程试验所获得的有关缩短循环扫描时间的技巧 ,对PLC控制系统的设计有一定的指导意义
|
| 关 键 词： | PLC 循环扫描时间 定时器 I/O响应时间 |
| 文章编号： | 1006-6705(2002)01-0025-02 |
| 修稿时间： | 2001年6月14日 |
Analysis and Design of Cycling Scanning Time for PLC Control Systems |
| |
| LIU Hong-jun ,HE Wen-ting.Analysis and Design of Cycling Scanning Time for PLC Control Systems[J].Power Science and Engineering,2002(1):25-26,38. |
| |
| Authors: | LIU Hong-jun HE Wen-ting |
| |
| Affiliation: | LIU Hong-jun 1,HE Wen-ting 2 |
| |
| Abstract: | Three limits in the design of the cycling scanning time of PLC control systems are given. Based on these conditions, the I/O response time is reduced, the signal lost can be avoided, and the timer can operate properly. Reducing cycling scanning time, the techniques based on theoretical study and engineering experiments are presented. The results are applied in the design of PLC control systems. |
| |
| Keywords: | PLC cycling scanning time timer I/O response time |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
