| RS-485通信的无极性连接 |
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| 引用本文： | 徐惠钢,郭文华. RS-485通信的无极性连接[J]. 低压电器, 2005, 0(7): 41-43 |
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| 作者姓名： | 徐惠钢 郭文华 |
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| 作者单位： | 1. 常熟理工学院,物理系,江苏,常熟,215500;南京理工大学,自动化系,江苏,南京,210094
2. 常熟理工学院,物理系,江苏,常熟,215500 |
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| 摘 要： | RS-485总线以其结构简单、通信速率高、传输距离远等诸多优点,在工业控制系统中得到了广泛的应用.RS-485是有极性连接的,根据RS-485通信传输线容易接反的特点,给出几种判断和修正传输线连接错误的方法,实现了RS-485无极性传输,使得工程施工和使用大为方便.
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| 关 键 词： | RS-485总线 无极性 差分曼彻斯特码 |
| 文章编号： | 1001-5531(2005)07-0041-03 |
| 收稿时间： | 2004-12-16 |
| 修稿时间： | 2004-12-16 |
Polarity Insensitive Communication Ways of RS- 485 Bus |
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| XU Hui-gang,GUO Wen-hua. Polarity Insensitive Communication Ways of RS- 485 Bus[J]. Low Voltage Apparatus, 2005, 0(7): 41-43 |
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| Authors: | XU Hui-gang GUO Wen-hua |
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| Abstract: | The RS-485 Bus has a lot of advantages such as simple configuration, high speed and long distance transmitting etc, it has been widely used in industrial control system. As RS-485 is sensitive to polarity and according to its characteristic that it could easily be connected in reverse, some methods which can judge and correct the wrong connection were presented, therefore realize polarity insensitive transmitting process and can be easy of the project construction and use. |
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| Keywords: | RS-485 bus polarity insensitive differential manchester encoding |
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