Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 140)

daqCalSetCalPoints
Also See: Other daqCal commands
Format
daqCalSetCalPoints(handle,chanConfig,calData,tableType)
Purpose
daqCalSetCalPoints sets calibration constants automaticllay after compare true (expected) values to
observed values.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device from which ADC transfer status
will be retrieved.
chanConfig DaqCalChanConfigT Configuration info which includes channel and gain.
calData DaqCalUserCalDataT
Calibration points (0 to 63)
tableType DaqCalTableTypeT Calibration table type to use.
Parameter Values
handle: obtained from the daqOpen function
chanConfig: channel configuration information (see chanConfig table, below)
calData : see calDataType table
tableType: s ee tableType table below
Parameter Type Definitions
chanConfig - DaqCalChanConfigT
Definition Description
DaqCalType dctAdc = 0; dctDac = 1; dctTrigger = 2; dctVref = 3; dctTime = 4 (for time stamp)
channel Channel number to which the equation will be applied
gain Channel gain
flags Channel flags, as applicable
extendedFlags The Channel’s extended flags, as applicable.
calDataType
Definition Description
dcdtConstant = 0 , global constant
dcdtLinear = 1, global linear constant
dcdtSplitLinear = 2, global split linear constant
DaqCalUserCalDataT
calDataType As Long
numCalPoints As Long
calPoints 0 to 63 as DaqCalPointT
tableType - DaqCalTableTypeT
Definition Description
DcttFactory Selects the factory calibration table. The factory calibration table reflects factory calibration
constants for the selected device. This is the default setting.
DcttUser Selects the user-calibration table. The user-calibration table reflects calibration constants defined
by the user or the device’s user-calibration application. Refer to the device’s calibration
documentation for specific settings.
DcttSelfCal Self-calibration constants.
Function Usage
Calculates and stores constants to calibraration table after comparing true (expected) vlalues to the
corresponding measured values.
4.3-14 Daq API Command Reference 908494 Programmer’s Manual