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手机阅读
今天完善了下温控仪的控制程序。温度控制仪采用的是厦门宇电生产的AI-708P型温度控制器。在官方论坛上，看见很多人在问如何写PC和温控仪的通讯控制程序。
把我写的发上来，希望能和大家一起讨论。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.IO.Ports;
namespace InternalFrictionApparatus
{
public partial class TempController : Form
{
long nATime;
public byte[] cmdCode = new byte[8];
public TempController()
{
InitializeComponent();
mySerialPort.PortName = "COM1";
mySerialPort.BaudRate = 9600;
mySerialPort.Open();
mySerialPort.ReadTimeout = 1000;
mySerialPort.WriteTimeout = 1000;
}
private void btnSend_Click(object sender, EventArgs e)
{
byte[] data = Encoding.Unicode.GetBytes(txtSend.Text);
string str = Convert.ToBase64String(data);
try
{
mySerialPort.WriteLine(str);
MessageBox.Show("数据发送成功！", "系统提示");
}
catch (System.Exception Err)
{
MessageBox.Show(Err.Message);
}
}
private void btnReceive_Click(object sender, EventArgs e)
{
try
{
//byte[] data = Convert.FromBase64String(mySerialPort.ReadLine());
byte[] data = Convert.FromBase64String(mySerialPort.ReadLine());
txtReceive.Text = Encoding.Unicode.GetString(data);
MessageBox.Show("数据接收成功！", "系统提示");
}
catch (System.Exception Err)
{
MessageBox.Show(Err.Message);
}
}
private void TempController_FormClosing(object sender, FormClosingEventArgs e)
{
mySerialPort.Dispose();
}
private void btnTest_Click(object sender, EventArgs e)
{
uint opCode = 21;
uint opValue = 200;
CalculateReadCode(opCode,opValue);
nATime = Environment.TickCount;
mySerialPort.Write(cmdCode,0,8);
}
private void btnRev_Click(object sender, EventArgs e)
{
byte[] instring = new byte[10];
float pv;
int sv, mv, alm, cs, crc;
try
{
mySerialPort.Read(instring, 0, 10);
pv = JoinToByte(instring[0], instring[1]); // 测量值
sv = JoinToByte(instring[2], instring[3]); // 给定值
mv = instring[4];
alm = instring[5];
cs = JoinToByte(instring[6], instring[7]); // 所读/写参数值
crc = JoinToByte(instring[8], instring[9]); // 校验码
MessageBox.Show("测量值：" + (pv / 10).ToString() + "\r\n给定值：" + sv.ToString() + "\r\nmv" + mv.ToString()
+ "\r\nalm" + alm.ToString() + "\r\n所读/写参数值：" + cs.ToString() + "\r\n校验码：" + crc.ToString());
}
catch (System.Exception Err)
{
MessageBox.Show(Err.Message);
}
}
public int JoinToByte(byte lowbyte,byte highbyte)
{
int c;
c = highbyte;
if (c > 127)
{ c = (c - 256) * 256; }
else
{ c = c * 256; }
return c + lowbyte;
}
private void mySerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string extingString = mySerialPort.ReadExisting();
MessageBox.Show(extingString.ToString());
/*
* byte[] instring = new byte[10];
//float pv;
int pv, sv, mv, alm, cs, crc;
mySerialPort.Read(instring, 0, 10);
pv = JoinToByte(instring[0], instring[1]); // 测量值
sv = JoinToByte(instring[2], instring[3]); // 给定值
mv = instring[4];
alm = instring[5];
cs = JoinToByte(instring[6], instring[7]); // 所读/写参数值
crc = JoinToByte(instring[8], instring[9]); // 校验码
MessageBox.Show("测量值：" + (pv / 10).ToString() + "\r\n给定值：" + sv.ToString() + "\r\nmv" + mv.ToString()
+ "\r\nalm" + alm.ToString() + "\r\n所读/写参数值：" + cs.ToString() + "\r\n校验码：" + crc.ToString()
+"\r\nTime: "+(Environment.TickCount-nATime).ToString()+"\r\nBufferSize: "+bufferSize.ToString());
*/
}
public void CalculateReadCode(uint opCode, uint opValue)
{
// 地址：H81（80H+1）
cmdCode[0] = 129;
cmdCode[1] = 129;
// 读：52H，82
cmdCode[2] = 82;
// 指令参数代码
cmdCode[3] = Convert.ToByte(opCode);
// 参数值
cmdCode[4] = Convert.ToByte(opValue % 256); // Low
cmdCode[5] = Convert.ToByte(opValue / 256); // High
// 校验码
// 读校验码 = 指令参数*256 + 82 + 1
// 写校验码 = 指令参数*256 + 67 + 参数值 + 1
uint crc = opCode * 256 + 82 + opValue + 1;
cmdCode[6] = Convert.ToByte(crc % 256); // 低字节
cmdCode[7] = Convert.ToByte(crc / 256); // 高字节
}
}
}