Reads data bytes from a previously addressed device.

RcvRespMsg assumes that another function, such as ReceiveSetup, Receive, or SendCmds, has already addressed the GPIB Talkers and Listeners. You use RcvRespMsg specifically to skip the addressing step of GPIB management. Use the Receive function to perform the entire sequence of addressing and then to receive the data bytes.

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.
  • ci16.png mode —

    mode determines the data termination method.

    The default is 0. If mode is from 0 through decimal 255, the ASCII character that corresponds to it is the termination character, and the function stops the read when it detects the character. If mode is not wired or is decimal 256, the read stops when the function detects the END message (EOI).
  • ci32.png count —

    count is the maximum number of data bytes to read from the GPIB.

  • cerrcodeclst.png error in —

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

  • istr.png data string —

    data string contains the bytes read from the GPIB.

  • 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 byte count —

    byte count refers to the number of bytes that pass over the GPIB.

  • ierrcodeclst.png error out —

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