National Instruments NI-488.2 ユーザーズマニュアル

© National Instruments Corporation

If the application does not have built-in error detection handling, you can 
use NI Spy to determine which NI-488.2 call is failing.

Once you know which NI-488.2 call fails, refer to Appendix B, 

, and Appendix C, 

, for help 

understanding why the NI-488.2 call failed. This information is also 
available in the NI-488.2 online help. For instructions on accessing the 
online help, refer to the 

 section in 

To see the detailed properties of any call recorded in the main NI Spy 
window, double-click on the call. The NI Spy Property Sheet window 
appears. It contains general, input, output, and buffer information, as 
applicable to each call.

When you exit NI Spy, its current configuration is saved and used to 
configure NI Spy when you start it again. Unless you save the data captured 
in NI Spy before you exit, that information is lost.

To save the captured data, stop the capture by clicking on the red circled X 
button on the toolbar. Then, select File»Save As to save the data in a .

spy

 

file. After you save your data, select File»Exit to exit the NI Spy utility.

NI Spy can slow down the performance of your NI-488.2 application, and 
certain configurations of NI Spy have a larger impact on performance than 
others. For example, configuring NI Spy to record calls to an output file or 
to use full buffers might have a significant impact on the performance of 
both your application and your system. For this reason, use NI Spy only 
while you are debugging your application or in situations where 
performance is not critical.