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ModbusTCP监控程序
资源描述
这里先传个代码的文件先看看吧。TCP的协议样例如下:
请求和响应带有六个字节的前缀,如下:
byte 0: 事务处理标识符 –由服务器复制 –通常为 0
byte 1: 事务处理标识符 –由服务器复制 –通常为 0
byte 2: 协议标识符= 0
byte 3: 协议标识符= 0
byte 4: 长度字段 (上半部分字节) = 0 (所有的消息长度小于256)
byte 5: 长度字段
(下半部分字节) = 后面字节的数量
byte 6: 单元标识符 (原“从站地址”)
byte 7: MODBUS 功能代码
byte 8 on: 所需的数据
因而处理示例“以4的偏移从UI 9读1寄存器”返回5的值将是
- 2022-06-17 16:12:25下载
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IE toolbar icon speedy accession
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- 2022-03-13 02:45:26下载
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SHIP is a computer game which is played by the single player at a time.
SHIP is a computer game which is played by the single player at a time.
- 2023-07-31 02:45:03下载
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The DOS operating system source code specify DOS operating system
DOS操作系统源代码指定DOS操作系统
- 2022-11-08 01:35:03下载
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采用IO模拟I2C
该代码是基于STM107VCT6,I2C采用IO模拟的方式访问EEPROM的例程。由于网上经常出现使用STM的硬件I2C,总是会出现问题,这个代码中是采用IO模拟的方式
- 2022-04-20 10:22:41下载
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应用Visual C++ 6章的例子
实用Visual C++6.0教程各章节的源代码,能很好地帮助初学者熟悉VC开发平台。-Pratical Visual C++6.0 chapter examples
- 2022-03-24 19:45:53下载
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to two
将2维数组映射成一维数组处理,能够动态开辟二维数组空间,运算符重载过-to two-dimensional arrays into one-dimensional mapping array processing, dynamic open to two-dimensional arrays of space, too Operator
- 2022-03-10 20:50:51下载
- 积分:1
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c++ standard library is learning to use each c++ essential reference books.
c++ standard library 是每个学习使用c++的必备参考书。-c++ standard library is learning to use each c++ essential reference books.
- 2022-04-27 10:16:52下载
- 积分:1
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This is a game, there are red, blue two components. The rules of the game is ver...
这是一个小游戏,有红、蓝两方组成。游戏规则很简单,遇到小吃部多投掷一次骰子,遇到陷阱和栅栏都会受到相应的惩罚。-This is a game, there are red, blue two components. The rules of the game is very simple, encountered more than throwing a dice小吃部encounter traps and the fence will be punished accordingly.
- 2022-08-26 00:58:00下载
- 积分:1
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Win API(Visual C++)项目和源程序文件,第十六章
Win API(Visual C++)项目和源程序文件,第十六章-Win API (Visual C) projects and the source file, the 16th Chapter
- 2022-01-21 04:24:36下载
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