Measurement-computing UL for NI LabVIEW Manuale Utente Scaricare il pdf (Pagina 38)

Universal Library Virtual Instruments (VIs) Analog Output VIs

Analog Output VIs

AOut.VI

Sets the value of a D/A output.

Summary:

Inputs: BoardNum [U32] - The board number assigned when installed with InstaCal. Can

be 0 to 100.

Channel [I32] - Number of D/A channel to update.

Range [I32] - A/D Range code

DataValue [U16] - Value to update D/A.

Outputs:

ErrCode [I32] - Error code. See ErrMsg.VI

Arguments:

BoardNum The board number associated with a board when it was installed with InstaCal. The

specified board must have a D/A.

Channel The maximum allowable channel depends on which type of D/A board is being

used.

DataValue Must be in the range 0 – N, where N is the value 2

Resolution

- 1 of the converter.

Range If the selected D/A board does not have a programmable range feature, this

argument will be ignored. Otherwise, the gain can be set to any of the ranges that

are supported by the selected D/A board. See the "

Range input values" table on

page 19 for valid values. Refer to board-specific information contained in the

Universal Library User's Guide (available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf

) for the list of ranges

supported by each board.

For simultaneous-update boards: If you have set the simultaneous update jumper for simultaneous operation,

you should use AOutScBg.VI or AOutScFg.VI for simultaneous update of multiple channels. AOut.VI always

writes the D/A data then reads the D/A, which causes the D/A output to be updated.

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Measurement-computing UL for NI LabVIEW Manuale Utente Pagina 38