Monitoring I/O Messages on the Display

You can run IO Monitor at any time while running an application, as long as your application uses supported libraries or drivers to access instruments: 

  • KeysightVISA library
  • Keysight SICL library

What are IO Monitor Messages?

IO Monitor captures messages generated by the programming libraries or drivers. Each message includes the following details:

  • The source function name.
  • Input parameter values passed to the function.
  • Output parameter values returned by the function.
  • Elapsed time in milliseconds.

To Monitor I/O Messages:

  1. Prepare to run the application that makes the function calls you want to monitor. If you don't have an application, you can use Keysight's Interactive IO utility to communicate with an instrument.
  2. Start IO Monitor.
  3. Select the source you want to view. Refer to Changing IO Monitor Settings. The IO Monitor display only captures and displays messages from the IO Libraries you select.
  4. Begin monitoring messages by selecting the Start button. Alternately, you can select the down arrow to open a menu; the default menu item is Start Capture / Don't Log Captured Messages. To log captured messages to a file, refer to Logging I/O Messages to a File.
  5. Start your application or issue commands from Interactive IO.
  6. Watch events as they are captured by IO Monitor.
  7. Stop the monitoring operation by selecting the Stop button.

Next: Understanding the IOMonitor Display