Hi, we are using an 9012 cRIO controller and a 9112 chassis with a 9477 module. We have encountered some noise coming from the cRIO and are wondering how to mitigate it. Any suggestions?? John JSC/NASA
Where are you seeing the noise? Are you reading a sensor?
There are many things that can cause noise: ground looping, not using shielded wires. Running signal wires next to AC. radio frequency noise the list goes on forever.
Have you tried removing things to see if one of the modules or something connected is causing the problem? Is everything properly grounded? How long have you had this system? Is there AC or a stong magnetic field close?
Actually, we found the problem! We had created a race condition in an FPGA program by accident that was simultaneously sending a '1' and '0' as output - creating the noise we were seeing! All's good now! Thanks for your help. John
