P0913PF

描述

基本定时器为减1计数，当程序进入运行状态后，定时控制逻辑行接通的瞬间定时器开始工作。工作过程是（以例题4-16为例说明）先将设定值寄存器SV5中的内容装入经过值寄存器EV5中。然后每经过一个定时时钟0.1s（例题是TMX5所以定时时钟是0.1s）EV5中的内容做减1计数，直至EV5中内容为0，该定时器对应的常开触点T5闭合，常闭触点T5断开。此后若定时器控制逻辑行一直保持接通状态，则其触点动作保持，直至控制逻辑行断开，各触点复位。若控制逻辑行接通时间未达到定时器设定时间就断开，定时器触点不动作，EV5复位直至控制逻辑行再次接通，重新开始计时。定时器工作过程顺序如图4-33所示。后续课程学习了高级指令后可利用高级指令修改SV5中的数据，从而改变定时器的设定时间。也可以调出EV5中的数据进行其它操作。

欧美品牌停产的，常用的“PLC”备品备件

我司产品应用于以下领域：

1,《发电厂DCS监控系统》

2,《智能平钢化炉系统制造》

3,《PLC可编程输送控制系统》

4,《DCS集散控制系统》
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5,《智能型消防供水控制系统》

6,《化工厂药液恒流量计算机控制系统》

7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列

本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

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