Measurement-computing UL for NI LabVIEW Manual de usuario descargar pdf (Pagina 40)

Universal Library Virtual Instruments (VIs) Analog Output VIs

Simultaneous When this option is set (True) (if the board supports it and the appropriate switches

are set on the board) all of the D/A voltages will be updated simultaneously when

the last D/A in the scan is updated. This generally means that all the D/A values

will first be written to the board, then a read of a D/A address causes all D/As to be

updated with new values simultaneously.

ExtClock If this option (True) is used, conversions will be paced by the signal on the external

clock input line rather than by the internal pacer clock. Each conversion will be

triggered on the appropriate edge of the external clock input signal (see board-

specific info). When this option is used, the

Rate argument is ignored. The

sampling rate is dependent on the trigger signal. Options for the board will default

to transfer types that allow the maximum conversion rate to be attained unless

otherwise specified.

Rate (output Actual output rate (in samples per channel per second).

ErrCode Error code returned from the Universal Library. Zero if no error occurred. Use the

ErrMsg VI to convert

ErrCode into a readable string.

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Measurement-computing UL for NI LabVIEW Manual de usuario Pagina 40