private byte[] ReceiveData(UInt16?MsgId)
{
byte[] data = new byte[1024];//定义数据接收数组
try
{
//var t1 = DateTime.Now;
socket.Receive(data);//接收数据到data数组
//var t2 = DateTime.Now;
//var df = t2 - t1;
//Console.WriteLine($"收 {df.TotalMilliseconds} ms");
//Console.WriteLine(data);
}
catch (Exception ex)
{
this.Connected = false;
ErrorMessage = ex.Message;
try
{
socket.Close();
}
catch { }
return(null);
}
var id = ByteUtil.BytesToUInt16(data[0], data[1]);
if (!MsgId.HasValue || id != MsgId.Value)
{
ErrorMessage = "信息标识号不正确！";
return(null);
}
int length = ByteUtil.BytesToInt16(data[4], data[5]);//读取数据长度
//Console.WriteLine(String.Format("长度={0}", length));
if (length == 3 && data[7] > 0x80)
{
var errorCode = (ModbusErrorEnum)data[8];
this.ErrorMessage = errorCode.GetDescription();
return(null);
}
Byte[] realData = new byte[length - 2];//定义所要显示的接收的数据的长度
Array.Copy(data, 8, realData, 0, length - 2);
return(realData);
}
unsafe public override void Can_Rec_Tick()
{
UInt32 res = new UInt32();
res = VCI_GetReceiveNum(DevType, DevIndex, CanIndex);
if (res == 0)
{
return;
}
/////////////////////////////////////
UInt32 con_maxlen = 100;
IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(VCI_CAN_OBJ)) * (Int32)con_maxlen);
res = VCI_Receive(DevType, DevIndex, CanIndex, pt, con_maxlen, 5);
////////////////////////////////////////////////////////
String str = "";
for (UInt32 i = 0; i < res; i++)
{
VCI_CAN_OBJ?reviceObj = null;
try
{
reviceObj = (VCI_CAN_OBJ)Marshal.PtrToStructure((IntPtr)(pt.ToInt64() + i * Marshal.SizeOf(typeof(VCI_CAN_OBJ))), typeof(VCI_CAN_OBJ));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
if (!reviceObj.HasValue)
{
break;
}
var obj = reviceObj.Value;
var targetID = (byte)(obj.ID >> 3);
var mask = (byte)(obj.ID & 0b111);
Console.Write("rec: 0x{0:x4} ", obj.ID);
for (var j = 0; j < obj.DataLen; j++)
{
Console.Write("0x{0:x2} ", obj.Data[j]);
}
TimeSpan ts = DateTime.Now - new DateTime(1970, 1, 1, 0, 0, 0, 0);
Console.WriteLine("TimeStamp:" + Convert.ToInt64(ts.TotalSeconds).ToString());
if (targetID != (byte)(ID & (0xFF << 3 | mask)))
{
Console.WriteLine("ID不符，数据丢弃");
continue;
}
//Console.WriteLine("objlen=" + obj.DataLen);
str = "接收到数据: ";
str += " 设备ID:0x" + Convert.ToString(targetID, 16);
str += " ID掩码:0x" + Convert.ToString(mask, 16);
str += " 帧格式:";
if (obj.RemoteFlag == 0)
{
str += "数据帧 ";
}
else
{
str += "远程帧 ";
}
if (obj.ExternFlag == 0)
{
str += "标准帧 ";
}
else
{
str += "扩展帧 ";
}
//////////////////////////////////////////
if (obj.RemoteFlag == 0)
{
str += "数据: ";
byte len = (byte)(Math.Min(obj.DataLen % 50, 8));
byte[] data = new byte[len];
for (byte j = 0; j < len; j++)
{
data[j] = obj.Data[j];
str += " " + ByteUtil.ToHex(obj.Data[j]);
}
//bool is_mask = (data[0] & 0x07) == 0x07;
//data[0] = is_mask ? (byte)(data[0] >> 3) : data[0];
(String CanAddress, CanFunCodeEnum FunCode) = ParseCanData(data);
if (FunCode == CanFunCodeEnum.UPLOAD_COIL || FunCode == CanFunCodeEnum.UPLOAD_REGISTER || FunCode == CanFunCodeEnum.READ_COIL || FunCode == CanFunCodeEnum.READ_REGISTER || FunCode == CanFunCodeEnum.WRITE_SINGLE_COIL || FunCode == CanFunCodeEnum.WRITE_SINGLE_REGISTER)
{
lock (RecSafeData.Lock)
{
bool is_pass = true;
if (FunCode == CanFunCodeEnum.WRITE_SINGLE_COIL || FunCode == CanFunCodeEnum.WRITE_SINGLE_REGISTER)
{
is_pass = data[3] == 0xb0 || data[4] == 0xff || data[5] == 0xff;
}
if (is_pass == false)
{
ErrorSystem.WriteActError("通讯返回错误！", false);
}
if (is_pass)
{
string key_str = ByteUtil.ToHex(targetID) + ByteUtil.ToHex(data[0]) + ByteUtil.ToHex(data[1]) + ByteUtil.ToHex(data[2]) + ByteUtil.ToHex(data[3]);
if (!Rec_SafeData.ContainsKey(key_str))
{
Rec_SafeData.Add(key_str, true);
}
else
{
Rec_SafeData[key_str] = true;
}
if (ListenFunList.ContainsKey(key_str))
{
var task = Task.Run(() =>
{
ListenFunList[key_str](targetID, data);
});
}
}
}
}
switch (FunCode)
{
case CanFunCodeEnum.READ_COIL:
{
byte length = 1;
String canId = CanAddress.Split('-')[0];
UInt16 addr = ByteUtil.BytesToUInt16(data[2], data[3]);
for (byte k = 0; k < length; k++)
{
byte curData = data[k / 8 + 4];
String key = canId + "-" + Convert.ToString(addr + k, 16).PadLeft(4, '0').ToUpper();
//var val = ((0x01 << (k % 8)) & curData) == 0x01;
var val = data[4] == 0xff;
SetBool(key, val);
}
break;
}
case CanFunCodeEnum.UPLOAD_COIL:
{
byte length = data[4];
String canId = CanAddress.Split('-')[0];
UInt16 addr = ByteUtil.BytesToUInt16(data[2], data[3]);
for (byte k = 0; k < length; k++)
{
byte curData = data[k / 8 + 5];
String key = canId + "-" + Convert.ToString(addr + k, 16).PadLeft(4, '0').ToUpper();
var val = ((0x01 << (k % 8)) & curData) == 0x01;
SetBool(key, val);
}
break;
}
case CanFunCodeEnum.READ_REGISTER:
case CanFunCodeEnum.UPLOAD_REGISTER:
{
var val = ByteUtil.BytesToInt(data[4], data[5], data[6], data[7]);
SetInt(CanAddress, val);
break;
}
case CanFunCodeEnum.WRITE_MULTI_COIL:
{
break;
}
case CanFunCodeEnum.WRITE_SINGLE_COIL:
{
break;
}
case CanFunCodeEnum.WRITE_SINGLE_REGISTER:
{
break;
}
}
}
//Console.WriteLine(str);
}
Marshal.FreeHGlobal(pt);
}