| Windows环境下计算机与PLC串行通信的实现 |
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| 引用本文： | 李双科,吴记群. Windows环境下计算机与PLC串行通信的实现[J]. 兰州工业高等专科学校学报, 2005, 12(2): 30-33 |
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| 作者姓名： | 李双科 吴记群 |
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| 作者单位： | 兰州工业高等专科学校,电气工程系;兰州工业高等专科学校,图书馆,甘肃,兰州,730050 |
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| 摘 要： | 针对控制系统中上位机与S7-200系列PLC的通信,介绍了S7-200系列PLC通信方式.着重阐述了自由口通信的参数设定、协议规划以及在Windows环境下实现计算机与PLC串行通信的实现方法和Delphi下用Windows API函数实现计算机串行通信的程序设计.将PLC与计算机通信网络连接起来,并实现串行通信,可以有效地提高控制系统的整体自动化程度.
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| 关 键 词： | PLC 串行通信 Windows API 自由口模式 |
| 文章编号： | 1009-2269(2005)02-0030-04 |
| 修稿时间： | 2005-03-25 |
The Realization of Serial Communication of Computer and PLC in Windows |
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| LI Shuang-ke,WU Ji-qun. The Realization of Serial Communication of Computer and PLC in Windows[J]. Journal of Lanzhou Higher Polytechnical College, 2005, 12(2): 30-33 |
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| Authors: | LI Shuang-ke WU Ji-qun |
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| Abstract: | In view of the communication problem between upper-computer and S7-200 series PLC,the authors introduce the communication mode of S7-200,emphatically elaborate how to set up the parameter and protocol in freeport communication mode, explain the method of realizing serial communication between computer and PLC in windows and program design with windows API function in Delphy which can realize computer serial communication.It is efficient to improve the degree of whole control system automalization if PLC is connected with computer communication network and serial communication is achieved. |
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| Keywords: | PLC Windows API |
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