TestSys Function

Directs multiple devices to conduct IEEE 488.2 self-tests.

Refer to GPIB Function Defaults for more information about the timeout and address defaults.


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Inputs/Outputs

  • ci32.png bus —

    bus refers to the GPIB bus number. If you have only one GPIB interface in your computer, the default bus number is 0.

    Refer to the software installation instructions included with the GPIB controller for additional GPIB interfaces.
  • c1di16.png address list —

    address list contains a list of GPIB devices which receive instructions from the function to conduct their self-test procedures.

    If a secondary address is required, use the MakeAddr function to put the primary and secondary addresses in the proper format.
  • cerrcodeclst.png error in —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • i1di16.png result list —

    result list Each device returns an integer code signifying the results of its tests. TestSys returns these codes in the corresponding elements of result list.

    A result code of 0 indicates the device passed its tests. Any other value indicates the tests resulted in an error.
  • i1dbool.png status —

    status is a Boolean array in which each bit describes a state of the GPIB Controller.

    If an error occurs, the function sets bit 15. GPIB error is valid only if bit 15 of status is set.

    The following table shows the numeric value and symbolic status of each bit in status. This table also includes a description of each bit.
    Status BitNumeric ValueSymbolic StatusDescription
    01DCASDevice Clear state
    12DTASDevice Trigger State
    24LACSListener Active
    38TACSTalker Active
    416ATNAttention Asserted
    532CICController-In-Charge
    664REMRemote State
    7128LOKLockout State
    8256CMPLOperation Completed
    124096SRQISRQ Detected while CIC
    138192ENDEOI or EOS Detected
    1416384TIMOTimeout
    15-32768ERRError Detected
  • ii32.png failed devices —

    failed devices contains the number of devices that failed their tests.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.