Internet PLC Forum

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