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c# plc modibus 通信
c# 串口 以太网通信 modibus 连接 plc
从文本框输入负数 -2 补码=反+1=进位+原数
Vb 清除输入缓冲区 输出缓冲区 c#用不用清除？？哪个函数？？
//發送二進制數據 ？？？？？？？？？？？？？？
private void SendBytesData(SerialPort serialPort)
{ ////从 文本框取得数据 如果负数 -2 怎么办？？？？
byte[] bytesSend = Encoding.Default.GetBytes(txtSend.Text);
spcom.Write(bytesSend, 0, bytesSend.Length);
}
通过MODBUS TCP读写PLC源码
功能模块一：读写PLC主模块
using System;
using System.Net;
using System.Net.Sockets;
public static void WriteWord(int mwAddress,int mwValue)
{写字到以太网
if (init_plc() == 0)
{
try
{
hi = mwAddress / 256;
low = mwAddress - hi * 256;
hi1 = mwValue / 256; ///////////16bit
low1 = mwValue - hi * 256;
sendBuf[7] = 6;
sendBuf[8] = (byte)hi;
sendBuf[9] = (byte)low;
sendBuf[10]
- 2022-07-10 15:42:30下载
- 积分：1
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LPC2368 used as a hardware platform for example, there is good value
一个用LPC2368作为硬件平台的例子，有很好的利用价值-LPC2368 used as a hardware platform for example, there is good value
- 2022-04-09 12:13:48下载
- 积分：1
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程序使用了自相关性和互相关性较好的gold码作为扩频序列，直扩，扩频增益设置为31，模拟用户数为4...
程序使用了自相关性和互相关性较好的gold码作为扩频序列，直扩，扩频增益设置为31，模拟用户数为4-Program uses a self-correlation and cross-correlation of the better gold code as spreading sequence, direct expansion, spreading gain is set to 31 to simulate the number of users of 4
- 2022-01-26 01:15:52下载
- 积分：1
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RFC1055 A NONSTANDARD FOR TRANSMISSION OF IP DATAGRAMS OVER SERIAL LINES: SLIP
RFC1055通过串行线路传输IP数据报的非标准：SLIP
- 2022-07-27 16:45:30下载
- 积分：1
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除了个别算法，演示系统是一个“数据结构”…
In addition to individual algorithm, Demonstration System is a "data structure" (C language version) book algorithm corresponding to the code (CPP) and the test operating procedures (VC + +6.0 to the EXE). Through the system can demonstrate that the algorithm source code and operating results -In addition to individual algorithm, Demonstration System is a
- 2022-02-02 14:46:47下载
- 积分：1
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Windows CE 串口通讯程序，可用于Wince 4.0以上的版本，使用EVC++ 4.0编写...
Windows CE 串口通讯程序，可用于Wince 4.0以上的版本，使用EVC++ 4.0编写-Windows CE serial communication procedures, can be used for Wince 4.0 or later, use EVC++ 4.0 preparation
- 2022-07-06 16:21:03下载
- 积分：1
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VC++串口通信
MFC界面的 API 串口通信 代码非常简单 一看就懂 采用一个线程接收数据，满足简单的开发需要 开发工具VS2005
- 2022-03-20 18:24:18下载
- 积分：1
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ATmega 128 芯片介绍文档,包括它的中断,I/O,UART,TIMER等
ATmega 128 芯片介绍文档,包括它的中断,I/O,UART,TIMER等-ATmega 128 chip, introduced the document, including its interrupt, I/O, UART, TIMER, etc.
- 2022-03-22 21:14:18下载
- 积分：1
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- 2022-08-24 11:50:32下载
- 积分：1
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The program is HDB3 code between code and message conversion, and in some conver...
该程序是将HDB3码与消息码相互转换，在某些转换方面的东西做的不是很好，求高人改进-The program is HDB3 code between code and message conversion, and in some conversion to do something not very good, seeking to improve Gao Ren
- 2022-08-09 01:06:42下载
- 积分：1
