public int Send(Collector.ITaskContext t, Collector.Channel.BaseChannel channel)
{
int i = channel.Write(t.GetTX());
return(i);
}
public int Send(Collector.ITaskContext t, Collector.Channel.BaseChannel channel)
{
random.NextBytes(affair);
byte[] a = t.GetTX();
a[0] = affair[0];
a[1] = affair[1];
return(channel.Write(a));
}
/// <summary>
/// 如果返回的是错误码、抛出异常 ；其他情况返回空。
/// </summary>
/// <param name="t"></param>
/// <param name="channel"></param>
/// <returns></returns>
public byte[] Receive(Collector.ITaskContext t, Collector.Channel.BaseChannel channel)
{
sw.Restart();
byte[] a = new byte[] { };
while (sw.ElapsedMilliseconds < TimeOut)
{
a = channel.Read(256);
if (a.Length > 2)
{
if (a[0] == affair[0] && a[1] == affair[1])
{
break;
}
}
}
sw.Stop();
return(a);
}
/// <summary>
/// 如果返回的是错误码、抛出异常 ；其他情况返回空。
/// </summary>
/// <param name="t"></param>
/// <param name="channel"></param>
/// <returns></returns>
public byte[] Receive(Collector.ITaskContext t, Collector.Channel.BaseChannel channel)
{
sendByte = t.GetTX();
buf.Clear();
#region
switch (sendByte[1])
{
case 0x03:
recLength = (BitConverter.ToInt16(new byte[] { sendByte[sendByte.Length - 3], sendByte[sendByte.Length - 4] }, 0) * 2) + 5;
break;
case 0x06:
recLength = sendByte.Length;
break;
case 0x10:
recLength = 8;
break;
default:
throw new Exception("发送指令中存在不支持的指令码：" + sendByte[1].ToString());
}
#endregion
sw.Restart();
int timeSpan = recLength + TimeOut;
while (sw.ElapsedMilliseconds < timeSpan)
{
buf.AddRange(channel.Read(64));
if (buf.Count > 2) //判断返回的是否有错误
{
if (buf[1] != sendByte[1])
{
buf.Clear();
break;
}
}
if (buf.Count >= recLength)//接收完指定长度后，判断crc是否通过
{
sw.Stop();
if (buf.Count != recLength)
{
buf.Clear();//////////////////////
}
else if (!ModbusCvt.CheckDataCrc16(buf.ToArray()) || buf.Count != recLength)
{
buf.Clear();//////////////////////
}
break;
}
}
sw.Stop();
if (buf.Count > 0)
{
ErrorCount = 0;
}
else
{
ErrorCount++;
}
if (ErrorCount > 3)
{
throw new Exception("串口多次未读取到数据、请检查通讯是否有问题");
}
return(buf.ToArray());
}
public static int Send(Collector.ITaskContext t, Collector.Channel.BaseChannel channel)
{
return(channel.Write(t.GetTX()));
}
