Keithley KPCI-3110, Руководство пользователя

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KPCI-3110 and KPCI-3116 User’s Manual Systematic Problem Isolation C-11
Problem isolation Scheme C: application software
In Scheme C, you check for bugs in custom application software, assuming that you can access
the source code. Alternatively, you check for compatibility and installation issues in commercial
application software. In Scheme A, you temporarily installed a KPCI-3110 or KPCI-3116 board
that is known to be good in place of a KPCI-3110 or KPCI-3116 board that you removed from
the computer. This substitution, still in place, eliminates possible board I/O problems during
Scheme C. You now perform I/O tests using your application software. You debug custom code,
if necessary, and recheck.
NOTE This is not a stand-alone procedure. Use it only when it is called for by
another procedure.
Follow these instructions as you perform Scheme C:
1. Perform the procedure outlined in the “ Analog input hardware test ,” found later in this
appendix.
2. Based on the results of the Analog input software test, do one of the following:
• If your software appears not to be working properly with your analog inputs, skip to
step 8 .
•
If your software appears to be working properly AND your board does not have analog
outputs, skip to step 5 .
• If your software appears to be working properly AND your board has analog outputs,
continue with
step 3 .
3. Perform the procedure outlined in the “ Analog output hardware test ” found later in this
appendix.
4. Based on the results of the Analog output software test, do one of the following:
•
If your software appears not to be working properly with your analog outputs, skip to
step 8 .
• If your software appears to be working properly with your analog outputs, continue with
step 5 .
5. Perform the procedure outlined in the “ General-purpose digital I/O hardware test ” found
later in this appendix.
6. Based on the results of the “ General-purpose digital I/O hardware test ,” do one of the
following:
•
If your software appears not to be working properly with your digital I/O, skip to step 8 .
• If your software appears to be working properly with your digital I/O, continue with
step 7 .
7. Select the next step in Scheme C based on the criteria given in the following alternatives:
• If you reached this point without modifying the custom software or reinstalling the com-
mercial software—if you experienced no problems in the tests at any point—then the
problem you originally experienced must lie elsewhere. Go to “
Problem isolation
Scheme E: user wiring ” and check your external connections.
•
If you reached this point by having to modify the custom software or reinstall the com-
mercial software—if you no longer experience problems in the tests—then assume that
you have solved the original problem. Go to “
Problem isolation Scheme G: verification
of problem solution ” and verify that the problem is solved.