| 有效优化扩展I/O点提高PLC系统的性价比 |
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| 引用本文： | 曲海波. 有效优化扩展I/O点提高PLC系统的性价比[J]. 机床电器, 2007, 34(6): 42-44 |
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| 作者姓名： | 曲海波 |
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| 作者单位： | 威海职业技术学院,264210 |
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| 摘 要： | 在利用PLC对复杂化的设备进行控制及改造时,常常遇到PLC的I/O点数不够用的情况。本文从软件和硬件两方面介绍了PLC在实际应用中优化扩展I/O点的几种常规有效方法,这些方法可大大降低硬件成本,在机床电气控制及改造中具有很高的实用价值。
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| 关 键 词： | 优化扩展 PLC I/O点 软硬件 性价比 |
| 文章编号： | 1004-0420（2007）06-0042-03 |
| 收稿时间： | 2007-04-02 |
| 修稿时间： | 2007-04-02 |
The valid excellent turn to expand the I/O to increase the function and value comparison of the PLC system |
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| QU Hai-bo. The valid excellent turn to expand the I/O to increase the function and value comparison of the PLC system[J]. Machine Tool Electric Apparatus, 2007, 34(6): 42-44 |
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| Authors: | QU Hai-bo |
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| Abstract: | While making use of the equipments of the PLC for complication to carry on the control and reformation,usually meet the PLC I/O to order number not enough the circumstance that use.This text introduced the PLC from the software and the hardware both side excellent turn to expand a few methods with valid normal regulations that the I/O order in actual application,these methods can lower the hardware cost consumedly,having the very high and practical value in the machine tool electricity control and reform. |
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| Keywords: | excellent turn to expand PLC I/O function and value comparison |
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