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By fbarenghi, 20 January, 2014
Hi,
I am new with Gurux projects and I have very little experience with C# too,
but I have found a bug using Gurux.DLMS.Client.Example.Net_2010 project together with Gurux.DLMS.Server.Example_2010.
The bug manifests itself using TCP/IP connection with LN:
Initializing Network connection.
Disconnecting from the meter.
- 9.22.34 00-01-00-10-00-01-00-02-62-00
-> 9.22.34 00-01-00-01-00-10-00-02-63-00
Il valore non può essere null.
Nome parametro: value
debugging the code I found the problem is located into the GXCommunication.cs source module at line 273 when "Trace" is enabled and "data" is NULL:
...
foreach (byte[] it in Client.AARQRequest(null))
{
if (Trace)
{
if (data == null)
{
data = NODATA;
}
Console.WriteLine("Send AARQ request", BitConverter.ToString(data));
...
so I suggest one of the possible solutions of the source code as follow:
...
byte[] NODATA = {};
...
foreach (byte[] it in Client.AARQRequest(null))
{
if (Trace)
{
if (data == null)
{
data = NODATA;
}
Console.WriteLine("Send AARQ request", BitConverter.ToString(data));
}
reply = ReadDLMSPacket(it);
}
if (Trace)
{
if (reply == null)
{
reply = NODATA;
}
Console.WriteLine("Parsing AARE reply" + BitConverter.ToString(reply));
}
...
Gurux.DLMS.Client.Example.Net_2010
Hi,
Thanks for let us know. You was right.
We changed
Console.WriteLine("Send AARQ request", BitConverter.ToString(data));
to
Console.WriteLine("Send AARQ request", BitConverter.ToString(it));
and fixed this.
We version is in Gurux SVN and Github.
BR,
Mikko