Read data from a COM port using TCP

Question

I'm using a Moxa Serial Hub centralize some devices that communicate using RS-232 / NMEA protocol.

The serial hub is working as a TCP client, witch every time it receives data transmits it to a know IP/port in my machine.

schema

The problem is that I'm not receiving the data properly (I thought all I had to do was create a TCP server that accepts connections, and read the data as bytes, but that just gives me some weird characters)

I receive the bytes...but when converting to text... its just some weird characters, I'm missing some detail in this conversion. so far I've tried:

byte[] b = new byte[1000];
int k = s.Receive(b);
Console.WriteLine(Encoding.UTF8.GetString(b, 0, 1000));
Console.WriteLine(Encoding.ASCII.GetString(b));
for (int i = 0; i < k; i++)
   Console.Write(Convert.ToChar(b[i]));

all these 3 approaches write the same text...

Does any one know how to properly read the data in this cases?

So you actually get a connection request from the moxa hub and receive (wrong) data? Then it might be related to wrong serial port settings on the moxa device (probably the wrong baud rate) — Jan
– Jan, Commented Dec 15, 2011 at 11:48
are you sure that your data should be text (and not some raw byte array)? — Fernando
– Fernando, Commented Dec 15, 2011 at 11:49
This sounds like an encoding problem based on the fact you claim you recieved "wierd" characters. Are you able to verify the bytes you recieve/send perhaps are actually correct by hand? So convert it.....What exactly is your question you have provided no code. — Security Hound
– Security Hound, Commented Dec 15, 2011 at 11:55
@Hans Passant: could you please stop adding [Solved] to the title of questions? If the question has been answered in a comment or by the OP himself, add it as an answer instead. See here: meta.stackexchange.com/questions/116101/… — Stefan Paul Noack
– Stefan Paul Noack, Commented Dec 15, 2011 at 14:13

Stefan Paul Noack · Accepted Answer · 2011-12-15 14:19:30Z

1

This comment provided the solution to the problem:

So you actually get a connection request from the moxa hub and receive (wrong) data? Then it might be related to wrong serial port settings on the moxa device (probably the wrong baud rate) – Jan 2 hours ago

Indeed, the baud rate was wrong.

answered Dec 15, 2011 at 14:19

Stefan Paul Noack

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