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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 your GPIB board for additional GPIB interfaces.
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error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurs before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
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parallel poll byte is the result of the parallel poll.
Each bit of the poll result returns one bit of status information from each device configured for parallel polls. The state of each bit, 0 or 1, and the interpretation of these states are based on the latest parallel poll configuration sent to the devices and on the individual status of the devices.
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status is a Boolean array in which each bit describes a state of the GPIB Controller.
If an error occurs, the GPIB function sets bit 15. GPIB error is valid only if bit 15 of status is set. Refer to the GPIB Status function for more information about status bits and GPIB error codes.
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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
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