返回列表 发布新帖

计数器

686 0
发表于 2024-7-10 18:16:53 | 查看全部 阅读模式

马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。

您需要 登录 才可以下载或查看,没有账号?立即注册

×
<p><span style=";font-size:20px;font-family:黑体;color:rgb(35,31,32)">&nbsp;</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">计数器用于完成计数功能,每个计数器含有线圈、接点、计时数据值寄存器,每当计数器线圈的驱动信号由 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">OFF </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">→ </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">ON </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">时,计 数器读数增加 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">1</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">,若计时值达到预设的时间值时,其接点动作,</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">a </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点(</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">NO </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点)闭合,</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">b </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点(</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">NC </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点)断开;若清除计时值,输出 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">a </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点即断开,</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">b </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点(</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">NC </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">接点)闭合。部分计数器具有掉电保持、累计等特性, </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">重新上电后仍维持掉电前的数值。 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">计数器以 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">C0</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">,</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">C1</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">,……</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">C255 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">进行标识,顺序按 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">10 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">进制编号。 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">一般用</span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)"> 16bit </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">保持用</span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)"> 16bit </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">一般用</span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)"> 32bit </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">保持用</span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)"> 32bit </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">保持用</span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)"> 32bit </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">C0 ~ C99 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">100 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点增计数 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[1] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">C100 ~ C199 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">100 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点增计数 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[2] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">C200 ~ C219 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">20 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点双向计数 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[1] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">C220~ C234 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">15 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点双向计数 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[2] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">C235 ~ C255 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">21 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点高速计数 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[2] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">• </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">[1] </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">非停电保持区域。使用参数设定,可变更成停电保持区域。 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">• </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">[2] </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">停电保持区域。使用参数设定,可变更成非停电保持区域</span></p>

回复

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

Copyright © 2001-2025 英威腾技术论坛 版权所有 All Rights Reserved. 粤ICP备07504406号
关灯 在本版发帖
扫一扫添加微信客服
返回顶部
快速回复 返回顶部 返回列表