/// <summary>
/// 接收数据回调用
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
try
{
byte[] requetData = new byte[serialPort.BytesToRead];
serialPort.Read(requetData, 0, requetData.Length);
var address = requetData[2] * 256 + requetData[3];
var stationNumberKey = $"{requetData[0]}-key";//站号
switch (requetData[1])
{
//读取线圈
case 1:
{
var value = dataPersist.Read(stationNumberKey + "-Coil");
var byteArray = JsonConvert.DeserializeObject <byte[]>(value) ?? new byte[65536];
var registerLenght = requetData[4] * 256 + requetData[5];
var blenght = (byte)Math.Ceiling(registerLenght / 8f);
var tempData = new byte[registerLenght];
Buffer.BlockCopy(byteArray, address, tempData, 0, tempData.Length);
var rData = new byte[3 + registerLenght];
rData[0] = 1;
rData[1] = 1;
rData[2] = (byte)registerLenght;
for (int i = 0; i < blenght; i++)
{
rData[3 + i] = (byte)DataConvert.BinaryArrayToInt(string.Join("", tempData.Skip(i * 8).Take(8).Reverse()));
}
var responseData = CRC16.GetCRC16(rData);
serialPort.Write(responseData, 0, responseData.Length);
}
break;
//写入线圈
case 5:
{
var value = new byte[2];
Buffer.BlockCopy(requetData, requetData.Length - 4, value, 0, value.Length);
var byteArray = JsonConvert.DeserializeObject <byte[]>(dataPersist.Read(stationNumberKey + "-Coil")) ?? new byte[65536];
if (value[0] == 0 && value[1] == 0)
{
byteArray[address] = 0;
}
else
{
byteArray[address] = 1;
}
dataPersist.Write(stationNumberKey + "-Coil", JsonConvert.SerializeObject(byteArray));
serialPort.Write(requetData, 0, requetData.Length);
}
break;
//读取
case 3:
{
var value = dataPersist.Read(stationNumberKey);
var byteArray = JsonConvert.DeserializeObject <byte[]>(value) ?? new byte[65536];
var dlength = requetData[4] * 256 + requetData[5];
var dataHead = new byte[] { 1, 3, (byte)(dlength * 2) };
var dataContent = new byte[dlength * 2];
Buffer.BlockCopy(byteArray, address * 2, dataContent, 0, dataContent.Length);
var tempData = dataHead.Concat(dataContent).ToArray();
var responseData = CRC16.GetCRC16(tempData);
serialPort.Write(responseData, 0, responseData.Length);
}
break;
//写入
case 16:
{
var value = new byte[requetData[6]];
Buffer.BlockCopy(requetData, 7, value, 0, value.Length);
var byteArray = JsonConvert.DeserializeObject <byte[]>(dataPersist.Read(stationNumberKey)) ?? new byte[65536];
value.CopyTo(byteArray, address * 2);
dataPersist.Write(stationNumberKey, JsonConvert.SerializeObject(byteArray));
var tempData = new byte[6];
Buffer.BlockCopy(requetData, 0, tempData, 0, tempData.Length);
var responseData = CRC16.GetCRC16(tempData);
serialPort.Write(responseData, 0, responseData.Length);
}
break;
}
}
catch (Exception ex)
{ }
}
/// <summary>
/// 接收客户端发送的消息
/// </summary>
/// <param name="newSocket"></param>
void Receive(Socket newSocket)
{
while (newSocket.Connected)
{
try
{
byte[] requetData1 = new byte[8];
//读取客户端发送过来的数据
requetData1 = SocketRead(newSocket, requetData1.Length);
byte[] requetData2 = new byte[requetData1[5] - 2];
requetData2 = SocketRead(newSocket, requetData2.Length);
var requetData = requetData1.Concat(requetData2).ToArray();
byte[] responseData1 = new byte[8];
//复制请求报文中的报文头
Buffer.BlockCopy(requetData, 0, responseData1, 0, responseData1.Length);
var addressKey = $"{requetData[6]}-{requetData[8] * 256 + requetData[9]}"; //站号-寄存器地址
var stationNumberKey = $"{requetData[6]}-key"; //站号
var address = requetData[8] * 256 + requetData[9]; //寄存器地址
var registerLenght = requetData[10] * 256 + requetData[11]; //寄存器的长度
switch (requetData[7])
{
//读取线圈
case 1:
{
var value = dataPersist.Read(stationNumberKey + "-Coil"); // 数据存在 8、9
var byteArray = JsonConvert.DeserializeObject <byte[]>(value) ?? new byte[65536];
var blenght = (byte)Math.Ceiling(registerLenght / 8f);
//当前位置到最后的长度
responseData1[5] = (byte)(3 + blenght);
byte[] responseData2 = new byte[1 + blenght];
var tempData = new byte[registerLenght];
Buffer.BlockCopy(byteArray, address, tempData, 0, tempData.Length);
responseData2[0] = blenght; //显示数据所占长度
for (int i = 0; i < blenght; i++)
{
responseData2[1 + i] = (byte)DataConvert.BinaryArrayToInt(string.Join("", tempData.Skip(i * 8).Take(8).Reverse()));
}
var responseData = responseData1.Concat(responseData2).ToArray();
newSocket.Send(responseData);
}
break;
//写入线圈
case 5:
{
var value = new byte[2];
Buffer.BlockCopy(requetData, 10, value, 0, value.Length);
var byteArray = JsonConvert.DeserializeObject <byte[]>(dataPersist.Read(stationNumberKey + "-Coil")) ?? new byte[65536];
if (value[0] == 0 && value[1] == 0)
{
byteArray[address] = 0;
}
else
{
byteArray[address] = 1;
}
dataPersist.Write(stationNumberKey + "-Coil", JsonConvert.SerializeObject(byteArray));
var responseData = new byte[10];
Buffer.BlockCopy(requetData, 0, responseData, 0, responseData.Length);
responseData[5] = 4; //后面的长度
newSocket.Send(responseData);
}
break;
//读取
case 3:
{
var value = dataPersist.Read(stationNumberKey); // 数据存在 8、9
var byteArray = JsonConvert.DeserializeObject <byte[]>(value) ?? new byte[65536];
//当前位置到最后的长度
responseData1[4] = (byte)((3 + registerLenght * 2) / 256);
responseData1[5] = (byte)((3 + registerLenght * 2) % 256);
byte[] responseData2 = new byte[1 + registerLenght * 2];
responseData2[0] = (byte)(registerLenght * 2);
Buffer.BlockCopy(byteArray, address * 2, responseData2, 1, registerLenght * 2);
var responseData = responseData1.Concat(responseData2).ToArray();
newSocket.Send(responseData);
}
break;
//写入
case 16:
{
var value = new byte[requetData[12]];
Buffer.BlockCopy(requetData, 13, value, 0, value.Length);
var byteArray = JsonConvert.DeserializeObject <byte[]>(dataPersist.Read(stationNumberKey)) ?? new byte[65536];
value.CopyTo(byteArray, address * 2);
dataPersist.Write(stationNumberKey, JsonConvert.SerializeObject(byteArray));
var responseData = new byte[12];
Buffer.BlockCopy(requetData, 0, responseData, 0, responseData.Length);
responseData[5] = 6; //后面的长度
newSocket.Send(responseData);
}
break;
//读离散
case 2:
{
//只返回false
var bytes = new byte[2];
//当前位置到最后的长度
responseData1[5] = (byte)(2 + bytes.Length);
byte[] responseData2 = new byte[2] {
bytes[1], bytes[0]
};
var responseData = responseData1.Concat(responseData2).ToArray();
newSocket.Send(responseData);
}
break;
}
}
catch (Exception ex)
{
//if (newSocket?.Connected ?? false) newSocket?.Shutdown(SocketShutdown.Both);
//newSocket?.Close();
//throw ex;
}
}
}