312 lines
8.8 KiB
C#
312 lines
8.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO.Ports;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace ModBus.Net
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{
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public class ComConnector : Connector, IDisposable
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{
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private SerialPort serialPort1 = new SerialPort();
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public delegate byte[] getDate(byte[] bts);
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private getDate mygetDate;
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private string com;
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public ComConnector(string com)
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{
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this.com = com;
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serialPort1.PortName = com; //端口号
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serialPort1.BaudRate = 9600; //比特率
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serialPort1.Parity = Parity.None; //奇偶校验
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serialPort1.StopBits = StopBits.One; //停止位
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serialPort1.DataBits = 8;
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serialPort1.ReadTimeout = 1000; //读超时，即在1000内未读到数据就引起超时异常
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}
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#region 发送接收数据
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public override bool Connect()
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{
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if (serialPort1 != null)
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{
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try
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{
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serialPort1.Open();
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return true;
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}
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catch
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{
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return false;
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}
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}
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return false;
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}
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public override bool Disconnect()
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{
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if (serialPort1 != null)
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{
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try
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{
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serialPort1.Close();
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return true;
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}
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catch
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{
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return false;
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}
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}
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return false;
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}
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public void SendMsg(string senStr)
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{
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byte[] myByte = StringToByte_2(senStr);
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SendMsg(myByte);
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}
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public override byte[] SendMsg(byte[] sendbytes)
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{
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try
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{
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if (!serialPort1.IsOpen)
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{
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serialPort1.Open();
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}
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serialPort1.Write(sendbytes, 0, sendbytes.Length);
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return ReadMsg();
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}
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catch
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{
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return null;
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}
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}
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public override bool SendMsgWithoutReturn(byte[] sendbytes)
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{
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try
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{
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serialPort1.Write(sendbytes, 0, sendbytes.Length);
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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public string ReadMsgStr()
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{
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string rd = "";
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byte[] data = ReadMsg();
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rd = ByteToString(data);
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return rd;
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}
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public byte[] ReadMsg()
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{
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if (!serialPort1.IsOpen)
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{
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serialPort1.Open();
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}
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byte[] data = new byte[200];
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int i = serialPort1.Read(data, 0, serialPort1.BytesToRead);
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byte[] returndata = new byte[i];
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Array.Copy(data, 0, returndata, 0, i);
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serialPort1.Close();
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return returndata;
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}
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#endregion
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/// <summary>
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/// 串口读(非阻塞方式读串口，直到串口缓冲区中没有数据
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/// </summary>
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/// <param name="readBuf">串口数据缓冲 </param>
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/// <param name="bufRoom">串口数据缓冲空间大小 </param>
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/// <param name="HowTime">设置串口读放弃时间 </param>
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/// <param name="ByteTime">字节间隔最大时间 </param>
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/// <returns>串口实际读入数据个数 </returns>
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public int ReadComm(out Byte[] readBuf, int bufRoom, int HowTime, int ByteTime)
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{
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//throw new System.NotImplementedException();
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readBuf = new Byte[64];
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Array.Clear(readBuf, 0, readBuf.Length);
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int nReadLen, nBytelen;
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if (serialPort1.IsOpen == false)
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return -1;
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nBytelen = 0;
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serialPort1.ReadTimeout = HowTime;
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try
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{
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readBuf[nBytelen] = (byte) serialPort1.ReadByte();
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byte[] bTmp = new byte[1023];
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Array.Clear(bTmp, 0, bTmp.Length);
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nReadLen = ReadBlock(out bTmp, bufRoom - 1, ByteTime);
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if (nReadLen > 0)
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{
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Array.Copy(bTmp, 0, readBuf, 1, nReadLen);
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nBytelen = 1 + nReadLen;
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}
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else if (nReadLen == 0)
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nBytelen = 1;
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}
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catch (Exception ex)
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{
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throw new Exception(ex.Message);
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}
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return nBytelen;
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}
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/// <summary>
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/// 串口同步读(阻塞方式读串口，直到串口缓冲区中没有数据,靠字符间间隔超时确定没有数据)
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/// </summary>
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/// <param name="ReadBuf">串口数据缓冲 </param>
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/// <param name="ReadRoom">串口数据缓冲空间大小 </param>
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/// <param name="ByteTime">字节间隔最大时间 </param>
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/// <returns>从串口实际读入的字节个数 </returns>
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public int ReadBlock(out byte[] ReadBuf, int ReadRoom, int ByteTime)
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{
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//throw new System.NotImplementedException();
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ReadBuf = new byte[1024];
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Array.Clear(ReadBuf, 0, ReadBuf.Length);
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sbyte nBytelen;
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//long nByteRead;
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if (serialPort1.IsOpen == false)
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return 0;
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nBytelen = 0;
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serialPort1.ReadTimeout = ByteTime;
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while (nBytelen < (ReadRoom - 1))
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{
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try
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{
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ReadBuf[nBytelen] = (byte) serialPort1.ReadByte();
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nBytelen++; // add one
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}
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catch (Exception ex)
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{
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throw new Exception(ex.Message);
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break;
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}
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}
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ReadBuf[nBytelen] = 0x00;
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return nBytelen;
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}
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/// <summary>
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/// 字符数组转字符串16进制
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/// </summary>
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/// <param name="InBytes"> 二进制字节 </param>
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/// <returns>类似"01 02 0F" </returns>
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public static string ByteToString(byte[] InBytes)
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{
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string StringOut = "";
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foreach (byte InByte in InBytes)
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{
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StringOut = StringOut + String.Format("{0:X2}", InByte) + " ";
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}
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return StringOut.Trim();
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}
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/// <summary>
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/// strhex 转字节数组
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/// </summary>
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/// <param name="InString">类似"01 02 0F" 用空格分开的 </param>
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/// <returns> </returns>
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public static byte[] StringToByte(string InString)
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{
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string[] ByteStrings;
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ByteStrings = InString.Split(" ".ToCharArray());
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byte[] ByteOut;
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ByteOut = new byte[ByteStrings.Length];
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for (int i = 0; i <= ByteStrings.Length - 1; i++)
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{
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ByteOut[i] = byte.Parse(ByteStrings[i], System.Globalization.NumberStyles.HexNumber);
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}
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return ByteOut;
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}
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/// <summary>
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/// strhex 转字节数组
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/// </summary>
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/// <param name="InString">类似"01 02 0F" 中间无空格 </param>
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/// <returns> </returns>
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public static byte[] StringToByte_2(string InString)
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{
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byte[] ByteOut;
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InString = InString.Replace(" ", "");
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try
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{
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string[] ByteStrings = new string[InString.Length/2];
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int j = 0;
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for (int i = 0; i < ByteStrings.Length; i++)
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{
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ByteStrings[i] = InString.Substring(j, 2);
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j += 2;
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}
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ByteOut = new byte[ByteStrings.Length];
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for (int i = 0; i <= ByteStrings.Length - 1; i++)
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{
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ByteOut[i] = byte.Parse(ByteStrings[i], System.Globalization.NumberStyles.HexNumber);
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}
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}
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catch (Exception ex)
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{
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throw new Exception(ex.Message);
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}
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return ByteOut;
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}
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/// <summary>
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/// 字符串 转16进制字符串
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/// </summary>
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/// <param name="InString">unico </param>
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/// <returns>类似“01 0f” </returns>
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public static string Str_To_0X(string InString)
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{
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return ByteToString(UnicodeEncoding.Default.GetBytes(InString));
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}
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public void Dispose()
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{
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if (serialPort1 != null)
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{
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serialPort1.Close();
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serialPort1.Dispose();
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}
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}
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}
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}
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