| LOGO!和STEP7定时器功能的比较与分析 |
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| 引用本文： | 张桂臣,潘凤娥. LOGO!和STEP7定时器功能的比较与分析[J]. 半导体技术, 2003, 28(12): 30-34 |
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| 作者姓名： | 张桂臣 潘凤娥 |
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| 作者单位： | 青岛远洋船员学院机电系,山东,青岛,266071;青岛远洋船员学院机电系,山东,青岛,266071 |
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| 摘 要： | LOGO!和STEP7的定时器都具有接通延时、断开延时、保持接通延时、边缘触发延时和脉冲输出功能,LOGO!还有通/断延时定时器、对称时钟脉冲、异步脉冲和随机发生器功能。LOGO!应用于小型的自动化作业,对现场设备和过程集中控制,其功能专一,种类齐全,易于操作。STEP7有五种定时器,功能强大,不仅具有延时功能,还能实现或监控时间顺序,可提供等待时间、监控时间、测量时间,完成基于时间的计数功能,产生一定宽度的脉冲,可检验定时器的信号状态并组合布尔逻辑操作结果,适用于复杂的自动化控制系统。
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| 关 键 词： | LOGO STEP7 定时器 触发器 脉冲发生器 |
| 文章编号： | 1003-353X(2003)12-0030-05 |
| 修稿时间： | 2003-06-20 |
Comparison and analysis of timer function of LOGO! and STEP7 |
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| ZHANG Gui-chen,PAN Feng-e. Comparison and analysis of timer function of LOGO! and STEP7[J]. Semiconductor Technology, 2003, 28(12): 30-34 |
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| Authors: | ZHANG Gui-chen PAN Feng-e |
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| Abstract: | Both of the timer LOGO! and STEP7 have the function of on-delay, off-delay,retentive on-delay and edge-triggered interval time-delay. LOGO! also has the function of on-offdelay timer, symmetrical clock pulse, asynchronous pulse and random generator. LOGO! is appliedto mini-type automatic equipment, locate equipment. STEP7 has five kinds of timers, its function isextensive, it can delay and monitor timed sequence etc. It provides waiting time, monitoring time andmeasuring time, and counting. It produces pulse with definite width, checks the signal state of atimer and combine the result in a Boolean logic operation, it is greatly applied to complicated auto-matic control system. |
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| Keywords: | LOGO! STEP7 timer trigger pulse generator |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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