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VC_MFC-Sample1
Microsoft Visual C++ MFC串口通信编程详解,主要介绍了用CreateFile()函数和WriteFile()函数读写串口的实例,以及设置
串口属性的实例.
在工业控制中,工控机(一般都基于 Windows 平台)经常需要与智能仪表通过串口
进行通信.串口通信方便易行,应用广泛.
一般情况下,工控机和各智能仪表通过 RS485 总线进行通信.RS485 的通信方式是
半双工的,只能由作为主节点的工控 PC 机依次轮询网络上的各智能控制单元子节点.
每次通信都是由 PC 机通过串口向智能控制单元发布命令,智能控制单元在接收到正
确的命令后作出应答.
(Microsoft Visual C++ MFC serial communication programming explain CreateFile () and WriteFile () function to read and write the serial port of the instance, and set the serial port attribute instance in industrial control, IPC (generally based on the Windows platform) often need to communicate with the smart meter through the serial port serial communication easy and widely used normal circumstances, the IPC and intelligent instrument through RS485 communication RS485 communication is half-duplex, only as the primary node industrial PC turn polling network intelligent control unit child nodes. every communication from a PC via the serial port to issue commands to the intelligent control unit, intelligent control unit receives the correct command response.)
- 2012-10-11 07:23:02下载
- 积分:1
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sip_hmp_asr_tts_demo
带语音识别的SIP-HMP程序, 可以实现ASR和TTS(sip hmp asr tts demo)
- 2017-12-06 09:09:24下载
- 积分:1
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fetion
My Fetion 实现PC客户端通过FETION WEB URL 发送短信( My Fetion)
- 2011-11-17 13:24:08下载
- 积分:1
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SPWM
我对于监控电源做的一些通讯协议,modbus rtu协议(I do monitor power communication protocol, modbus rtu protocol)
- 2012-09-13 09:37:13下载
- 积分:1
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VB写的通过串口与考勤机连接通讯的程序
说明: VB写的通过串口与考勤机连接通讯的程序,便于工作查看,调试。(VB written through the serial port and Attendance Machine Connection Communication Procedures, easy to see the work, debugging.)
- 2020-02-22 18:58:03下载
- 积分:1
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ikvei
随机调制信号下的模拟ppm,结合PCA的尺度不变特征变换(SIFT)算法,包括主成分分析、因子分析、贝叶斯分析。( Random ppm modulated analog signal under Combined with PCA scale invariant feature transform (SIFT) algorithm, Including principal component analysis, factor analysis, Bayesian analysis.)
- 2017-05-11 15:38:40下载
- 积分:1
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Utest
说明: U盘读写模块,实现电脑与U盘自动连接,发送,传输数据(U-reader module, computerization and U disk automatically, sending, transmission of data)
- 2006-04-24 22:34:43下载
- 积分:1
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OPC读840DSL828D
Mamul for connecting 840D SL system by OPC
- 2019-01-11 22:27:28下载
- 积分:1
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zhinengdianbaio
智能电表双向通信部分源代码,可以帮助大家学习智能电表远程通信方面的知识。(Intelligent electric meter two-way communication part of the source code, can help you learning intelligent electric meter remote communication knowledge.
)
- 2012-12-25 11:49:15下载
- 积分:1
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Frequencyconversion
说明: 变频器使用手册
MM440使用手册
西门子通用变频器应用实例手册(Inverter Manual Manual Siemens MM440 Inverter Application Manual Universal)
- 2010-04-09 14:46:36下载
- 积分:1