| PLC与计算机的串行通信程序设计 |
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| 引用本文： | 时文飞,侯世英,张柯,徐志向. PLC与计算机的串行通信程序设计[J]. 机床电器, 2005, 32(4): 30-32,36 |
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| 作者姓名： | 时文飞 侯世英 张柯 徐志向 |
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| 作者单位： | 重庆大学,400044 |
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| 摘 要： | 介绍了西门子PLCS7—200在自由端口模式下与计算机进行串行通信的方案，给出了上位机程序和下位机程序，通过一具体实验进行了验证。实验表明该方案简单可靠，有一定的实用价值。
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| 关 键 词： | PLC 串行通信 自由端口模式 程序设计 |
| 文章编号： | 1004-0420（2005）04-0030-03 |
| 收稿时间： | 2005-04-15 |
| 修稿时间： | 2005-04-15 |
The program design of series communication between PLC and computer |
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| SHI Wen-fei,HOU Shi-ying,ZHANG Ke,XU Zhi-xiang. The program design of series communication between PLC and computer[J]. Machine Tool Electric Apparatus, 2005, 32(4): 30-32,36 |
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| Authors: | SHI Wen-fei HOU Shi-ying ZHANG Ke XU Zhi-xiang |
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| Abstract: | This paper introduces a series communication between S7-200 programmable logic controller and personal computer in the mode of free port. It provides the program, which is confirmed by a material experimentation on top computer and PLC. The project is very reliable and has some application value. |
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| Keywords: | PLC series communication freeport mode |
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