Can I use NI I/O Trace on my RS-232 Serial Card?

Updated Dec 28, 2023

Reported In


  • Serial Interface Device


  • NI-Serial

Issue Details

I have a RS-232 Serial Interface Module and I would like to use the NI I/O Trace (previously called NI Spy) tool with it. Can I do this? 


Devices that use serial communication do not support NI I/O Trace, so you cannot use this tool with them. If you are looking for a tool with similar functionality to use on your serial card, you can use the WinDbg tool, or other Windows debugging tools. See Related Links for additional documentation on Windows debugging tools.

Additional Information

NI I/O Trace is supported by the following drivers: