niDMM_Fetch

NI-DMM C/CVI/VB

niDMM_Fetch

niDMM_Fetch(ViSession Instrument_Handle, ViInt32 Maximum_Time, ViReal64 *Reading)

Purpose

Returns the value from a previously initiated measurement. You must call niDMM_Initiate before calling this function.

Parameters

Input
Name Type Description
Instrument_Handle ViSession Identifies a particular instrument session. You obtain the Instrument_Handle parameter from niDMM_init or niDMM_InitWithOptions. The default is None.
Maximum_Time ViInt32 Specifies the Maximum_Time allowed for this function to complete in milliseconds. If the function does not complete within this time interval, the function returns the NIDMM_ERROR_MAX_TIME_EXCEEDED error code. This may happen if an external trigger has not been received, or if the specified timeout is not long enough for the acquisition to complete.

The valid range is 0–86400000. The default value is NIDMM_VAL_TIME_LIMIT_AUTO (-1). The DMM calculates the timeout automatically.

Output
Name Type Description
Reading ViReal64* The measured value returned from the DMM.

Return Value

Name Type Description
Status ViStatus Reports the Status of this operation. To obtain a text description of the status code, call niDMM_error_message. To obtain additional information concerning the error condition, use niDMM_GetError.