public override async Task <byte[]> SendMsgAsync(byte[] message)
{
try
{
var pos = 0;
var protocal = BigEndianValueHelper.Instance.GetByte(message, ref pos);
if (protocal == 0)
{
var tagBytes = new byte[message.Length - 6];
Array.Copy(message, 1, tagBytes, 0, tagBytes.Length);
pos += tagBytes.Length;
pos += 4;
var split = Encoding.UTF8.GetString(new[] { message[pos] });
var tag = Encoding.UTF8.GetString(tagBytes);
var tagSplit = SplitTag(tag, split[0]);
var rootDirectory = await Client.ExploreFolderAsync("");
var answerTag = await SearchTag(tagSplit, split[0], 0, rootDirectory);
if (answerTag != null)
{
var result = await Client.ReadAsync <object>(answerTag);
return(BigEndianValueHelper.Instance.GetBytes(result, result.GetType()));
}
return(Encoding.ASCII.GetBytes("NoData"));
}
else
{
var index = 0;
for (var i = 1; i < message.Length - 3; i++)
{
if (message[i] == 0x00 && message[i + 1] == 0xff && message[i + 2] == 0xff &&
message[i + 3] == 0x00)
{
index = i;
break;
}
}
var index2 = 0;
for (var i = index + 4; i < message.Length - 3; i++)
{
if (message[i] == 0x00 && message[i + 1] == 0xff && message[i + 2] == 0xff &&
message[i + 3] == 0x00)
{
index2 = i;
break;
}
}
var index3 = 0;
for (var i = index2 + 4; i < message.Length - 3; i++)
{
if (message[i] == 0x00 && message[i + 1] == 0xff && message[i + 2] == 0xff &&
message[i + 3] == 0x00)
{
index3 = i;
break;
}
}
var tagBytes = new byte[index - 1];
Array.Copy(message, 1, tagBytes, 0, tagBytes.Length);
var tag = Encoding.UTF8.GetString(tagBytes);
var splitBytes = new byte[index2 - index - 4];
Array.Copy(message, index + 4, splitBytes, 0, splitBytes.Length);
var split = Encoding.UTF8.GetString(splitBytes);
var typeBytes = new byte[index3 - index2 - 4];
Array.Copy(message, index2 + 4, typeBytes, 0, typeBytes.Length);
var type = Type.GetType(Encoding.UTF8.GetString(typeBytes));
var valueBytes = new byte[message.Length - index3 - 4];
Array.Copy(message, index3 + 4, valueBytes, 0, valueBytes.Length);
int mainpos = 0, subpos = 0;
var value = BigEndianValueHelper.Instance.GetValue(valueBytes, ref mainpos, ref subpos, type);
var rootDirectory = await Client.ExploreFolderAsync("");
var tagSplit = SplitTag(tag, split[0]);
var answerTag = await SearchTag(tagSplit, split[0], 0, rootDirectory);
if (answerTag != null)
{
try
{
await Client.WriteAsync(answerTag, value);
}
catch (Exception e)
{
AddInfo("opc write exception:" + e.Message);
return(new byte[] { 0 });
}
return(new byte[] { 1 });
}
return(new byte[] { 0 });
}
}
catch (Exception e)
{
AddInfo("opc client exception:" + e.Message);
return(Encoding.ASCII.GetBytes("NoData"));
}
}
/// <summary>
/// 带返回发送数据
/// </summary>
/// <param name="message">需要发送的数据</param>
/// <returns>是否发送成功</returns>
public override async Task <OpcParamOut> SendMsgAsync(OpcParamIn message)
{
try
{
if (message.IsRead)
{
var split = message.Split;
var tag = message.Tag;
var rootDirectory = await Client.ExploreFolderAsync("");
var answerTag = await SearchTag(tag, split, 0, rootDirectory);
if (answerTag != null)
{
var result = await Client.ReadAsync <object>(answerTag);
Log.Verbose($"Opc Machine {ConnectionToken} Read opc tag {answerTag} for value {result}");
return(new OpcParamOut
{
Success = true,
Value = BigEndianValueHelper.Instance.GetBytes(result, result.GetType())
});
}
return(new OpcParamOut
{
Success = false,
Value = Encoding.ASCII.GetBytes("NoData")
});
}
else
{
var tag = message.Tag;
var split = message.Split;
var value = message.SetValue;
var rootDirectory = await Client.ExploreFolderAsync("");
var answerTag = await SearchTag(tag, split, 0, rootDirectory);
if (answerTag != null)
{
try
{
await Client.WriteAsync(answerTag, value);
Log.Verbose($"Opc Machine {ConnectionToken} Write opc tag {answerTag} for value {value}");
}
catch (Exception e)
{
Log.Error(e, "opc client {ConnectionToken} write exception", ConnectionToken);
return(new OpcParamOut
{
Success = false
});
}
return(new OpcParamOut
{
Success = true
});
}
return(new OpcParamOut
{
Success = false
});
}
}
catch (Exception e)
{
Log.Error(e, "opc client {ConnectionToken} read exception", ConnectionToken);
return(new OpcParamOut
{
Success = false,
Value = Encoding.ASCII.GetBytes("NoData")
});
}
}