Functional Verification Test

Functional Test Procedure

NOTE

The procedure in this section is used to quickly verify that the digitizer is functioning. This test should be performed any time the user wants to verify that the digitizer is connected properly and is responding to basic commands.

This test verifies that the digitizer is communicating with the command module, external controller, and/or external terminal by accepting the *TST? common command and performing a digitizer self-test. You have a high confidence (90%) that the digitizer is operational if self-test passes.

1Verify that the digitizer and command module or system resource manager (e.g., embedded controller) are properly installed in the mainframe.

2Remove any input connections to the digitizer input terminals. Errors may be induced by ac signals present on the digitizer's input terminals during a self-test.

3 Execute the digitizer self-test using the *TST? command.

4A "0" returned means self-test passed with no failures. Any other value returned is a self-test error code and means a failure was detected. See the TEST command in Chapter 3 for obtaining information about self-test failures. See Appendix C and the TEST command in Chapter 3 for self-test error codes.

If an incorrect address is used, the digitizer will not respond. Verify proper address selection before troubleshooting.

Example: Self-Test

This BASIC example performs a digitizer self-test. Any number other than 0 returned indicates a test failure. See Appendix C and the TEST command in Chapter 3 for self-test error codes.

10

OUTPUT 70905;"*TST?"

! Send the self-test command

20

ENTER 70905;A

! Read the test result

30

PRINT A

! Display the result

40

END

 

Appendix D

Digitizers Verification Tests 153

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Agilent Technologies E1563A, E1564A user manual Functional Verification Test, Functional Test Procedure, Example Self-Test

E1563A, E1564A specifications

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