| 通过USB实现与多台RS-232仪器通讯 |
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| 引用本文： | 郭晓金,杨柳. 通过USB实现与多台RS-232仪器通讯[J]. 仪器仪表标准化与计量, 2011, 0(1): 40-42 |
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| 作者姓名： | 郭晓金 杨柳 |
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| 作者单位： | 1. 辽宁兴城市92853部队4分队,兴城市,125106
2. 福州市91267部队17分队,福州市,350015 |
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| 摘 要： | 本文介绍了USB串口扩展与USB/RS-232转换器的安装、解释了NullModem、Modem电缆的含义、比较了Agilent 34401A、Agilent 53150A和Fluke8846A仪器串口与计算机串口通讯时连线存在的差异,并以Fluke8846A数字电压表在LabVIEW开发环境下测量直流电压程序为例,描述了程序设计方法。该方法对充分开发利用RS-232仪器控制功能,避免资源浪费,提供了有效手段。经运行表明系统稳定可靠,控制效果佳。读者可以直接利用程序中的原代码,避免程序设计中繁琐调试过程,对程序设计和系统开发具有参考借鉴价值。
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| 关 键 词： | USB RS-232 仪器 |
Computer Communication with Several RS-232 via USB |
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| Guo Xiaojin,Yang Liu. Computer Communication with Several RS-232 via USB[J]. Instrument Standardization & Metrology, 2011, 0(1): 40-42 |
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| Authors: | Guo Xiaojin Yang Liu |
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| Affiliation: | Guo Xiaojin1 Yang Liu2(1.Unit 4 in No.92853 of PLA,Xingcheng 1251062.Unit 17 in No.91267 of PLA,Fuzhou 125106) |
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| Abstract: | The paper introduces the setting of the USB serial port and USB/RS-232 switch.It explaines the means of Null Modem,Modem cable and indicates the differences of the Agilent 34401A,Agilent 53150A and Fluke8846A in the cable connection.The paper takes Fluke8846A as an example to introduces the measurement of the volts d.c.and the design of the program in LabVIEW.In practical application,the method mentioned in the paper can make full use of the control function of the RS-232,readers can directly use the origin... |
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| Keywords: | USB RS-232 |
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