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向西门子PLC的数据块DB写入上位机数据，实现PC与PLC间的通信
向西门子PLC的数据块DB写入上位机数据，实现PC与PLC间的通信-Siemens PLC to the data blocks DB write PC data, the realization of PC and PLC communication
- 2022-05-19 03:34:56下载
- 积分：1
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[源代码]QPSK OFDM 信号的误码率计算
这段代码 MATLAB 计算误码率"BER"的正交相位 shift 键"QPSK"使用调制方案正交频分多路复用"OFDM"信号，它采取了只在 awgn 信道下的帐户。
- 2022-04-09 02:08:56下载
- 积分：1
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com串口源代码
com串口源代码-com string mouth source code
- 2022-02-10 16:22:36下载
- 积分：1
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图书馆的java管理程序
图书馆的java管理程序-library management procedures
- 2022-04-19 08:44:33下载
- 积分：1
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多输入空间信道模型
Spatial channel model for Multiple Input
Multiple Output (MIMO) simulations
(Release 6)
- 2023-03-13 08:10:04下载
- 积分：1
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direct use of Winsock modules for document transmission procedures, characterist...
直接运用 WINSOCK 单元进行传送文件的程序，特点：
1、多线程
2、支持断点续传。
3、系统托盘。
程序在Winxp和Win2000运行通过。
程序用到了第三方控件“VCLSkin2.45.D67”到相关站点可下载。-direct use of Winsock modules for document transmission procedures, characteristics : 1, 2 multithread support HTTP. 3, the system tray. Winxp and procedures in running Win2000 through. Procedures used a third-party control "VCLSkin2.45.D67" related to the site can be downloaded.
- 2022-04-30 08:48:17下载
- 积分：1
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这是Remon Spekreijse写的一个串口类，功能十分强大！
这是Remon Spekreijse写的一个串口类，功能十分强大！-Remon Spekreijse This is written in a serial type, function is very powerful!
- 2023-01-19 11:30:04下载
- 积分：1
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通过操作com口，收发短信。支持发送wap push
通过操作com口，收发短信。支持发送wap push-Through the operation of com port, send and receive message. Send wap push support
- 2022-09-29 01:30:03下载
- 积分：1
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顶部端口（USB）接口，这个接口的调试是PL的使用
TOP PORT (USB) 调试接口说明
本接口是利用PL-2303HX的USB转RS232的接口芯片设计实现了一个TTL(5V)的RS232串口，并且利用了PL-2303HX的2个GPIO口软件模拟了一个低速的I2C总线.该接口由USB接口提供5V电压，可自带2Kbit(24C02)数据备份EEPROM (单独读写通道,不占用I2C总线地址)。并可对外提供小于250mA的5V电压。尤其适合WIN-XP以后的没有并口和串口笔记本电脑。整机成本不到￥20RMB。
-TOP PORT (USB) interface debugging of this interface is the use of PL-2303HX the USB to RS232 interface chip design to achieve a TTL (5V) of the RS232 serial port, and use of PL-2303HX the two GPIO port software simulation of a low-speed I2C bus. The interface from the USB interface to provide 5V voltage, can bring their own 2Kbit (24C02) data backup EEPROM (separate read and write access, do not occupy I2C bus address). And may provide less than 250mA of 5V voltage. WIN-XP is particularly suitable for subsequent parallel and serial no notebooks. Machine costs less than ￥ 20RMB.
- 2022-11-23 00:10:04下载
- 积分：1
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fhhhgggggggggggggggggggggggggg 21IC下载
21ic下载f-21ic download fhhhgggggggggggggggggggggggggg
- 2023-09-03 00:25:03下载
- 积分：1
