Serial communication in C#

[SeGrO]

I am trying to interface the TM100 1616 with the PC using one of the serial comm ports. I am writing the user interface in C#. The user interface program will continuously poll the PLC to get counter, DAC, and other status variables. The problem that I am encountering is the serial communication in C#. Does anyone know of any libraries that would accomplish serial communication in C#? I know that they exist out there, but the only ones that I have been able to find are really expensive for my student pocket. I would really appreciate it if someone could direct me to a good, maybe free, serial communications library.


Thanks,

SeGrO  

[Joel Moore]

You have a few options that I know of:

• Serial Port Sample at GotDotNet which has a few problems if I remember correctly (read the discussion).
  
  
• John Hind's Serial Device Class I'm using this one and I've been pretty happy with it.  It was a little awkward for me to use at first but it works.
  
  
• NETCommOCX
  
  
• DesktopSerialIO
  
  
• Sax.net Communications Control (Community Edition) which is now part of a "Partner Products DVD" from Microsoft.
  
  
• Wait for .NET 2.0 which will have a serial port class.