Ann,
as we already discussed over this forum for your previous message about a joystick, the only access you have on your cRIO controller is through the serial port. So if you have a serial keyboard, you will be able to read the inputs from the serial port and translate them into operating instructions for your application.
The only other solution is to think about implementing a Host VI on Windows which will receive the inputs from the keyboard and send them over to the cRIO controller using a tcp/ip channel.
Good luck,
AlessioD
National Instruments
