how to monitor I/O ?

[tanggio]

I have a application which  controls DIO-96, but do not know how it controls because I do not have its code.

is there any tools which can monitor the digtal I/O , then I can know the input/output signal to/from the I/O?

as I know ,RS232 has some kind of monitor tools,how about the digtal IOs?

or other methods to monitor ?

[ian_fung]

hi, just to give you a quick reference...

You will need DAQmx to control i.e. read from/ write to the DIOs.

Also, try searching in the NI Example Finder (in LabVIEW) with keyword "DAQmx", there are plenty of reference examples.

[Seth_B.]

Hello tanggio,

If you are looking for a program that will tell you the calls that another application is making to your DIO-96 card, the closest option would be to use NI-SPY.  Please note that NI-SPY only works with DAQmx 9.0 or later (I recommend NI-DAQmx 9.0.2).  The ability to do this depends on a couple of factors, including whether you application uses DAQmx of Traditional NI-DAQ.  If it uses Traditional NI-DAQ, then you are unfortunately out of luck in terms of monitoring what the application does.  This will also only show you the NI-DAQmx calls that were made, so you'll need to manually interpret those calls to determine what data is being written.

Regards,