Keithley KPCI-3101 Series, User Manual

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KPCI-3101 — KPCI-3104 Series User’s Manual Systematic Problem Isolation C-11
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.
8. You arrived at this point because one of the I/O software tests failed. Select the next step in
Scheme C based on the criteria given in the following alternatives:
• If your applications program is a proven program—potentially a commercial program
that you cannot modify—then the software may be installed incorrectly or perhaps is
incompatible with DriverLINX. Skip to step 13.
•
If your applications program is a custom program that can be modified—the source code
is available—then continue with step 9.
9. Check and debug the source code as necessary.
10. At this point, you have presumably found and corrected some program bugs. Select the next
step in Scheme C based on the criteria given in the following alternatives:
• If both of the following statements are true, then the cause of your problem may be
outside the scope of these diagnostics. Read the instructions in
Section 6 “Technical
support ” and then contact Keithley for help in isolating the cause of your problem.
– You are at this point after having debugged the source code at least once and after
having failed the I/O software tests at least a second time.
– You have tried to find more code bugs after two or more I/O test failures and cannot
find any more bugs.
•
If none or only one of the above statements are true, then continue with step 11, and
selectively redo I/O software tests.
11. Select your next step in Scheme C based on the criteria given in the following alternatives:
•
If you have done the analog input software test at least once AND your software did not
pass the analog input software test the last time, then return to step 1 and redo that test.
• If you have done the analog input software test at least once AND your software passed
the analog input software test the last time, then assume that you do not need to repeat it.
Continue with step 12.
12. Select your next step in Scheme C based on the criteria given in the following alternatives:
• If all three of the following apply, then return to step 3 and redo the analog output soft-
ware test:
– Your board has analog outputs.
– You have done the analog output software test at least once.
– Your software did not pass the analog output software test the last time you tried.