| 可编程控制器串行A／D,D／A接口电路的研究与应用 |
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| 引用本文： | 张国钧.可编程控制器串行A／D,D／A接口电路的研究与应用[J].电子工艺技术,1996(5):42-44. |
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| 作者姓名： | 张国钧 |
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| 作者单位： | 山西矿业学院 |
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| 摘 要： | 从Ｖ／Ｆ（电压／频率）转换电路入手，结合可编控制器中高速计数器及频率输出指令的特点，分别研究并设计了一种可以用可编程控制器的开关量输入口和输出口分别实现Ａ／Ｄ或Ｄ／Ａ转换的接口电路，并研究了相应的程序设计方法。
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| 关 键 词： | 模－数转换 数－模转换 接口电路 程序控制器 |
Research And Application of one kind of Series A/D or D/A Interface in Programable Controller |
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| Zhang Guojun.Research And Application of one kind of Series A/D or D/A Interface in Programable Controller[J].Electronics Process Technology,1996(5):42-44. |
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| Authors: | Zhang Guojun |
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| Affiliation: | Shanxi Mine College |
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| Abstract: | This paper studies and designs one kind of series interface to realize the A/D or D/A conversion at the input or output end of programable Controller(PLC),which is started from V/F conversion circuit with the characteristic of the high-speed counter in PLC,and related program design methods.The main feature of the interface is an A/D or D/A channel,using only one on/off input or output point,so that the interface structure is greatly simplide and the cost is therefore lowered. |
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| Keywords: | V/F conversion A/D or D/A interface High-speed counter on/off signal input output interface |
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