DAQmxAdjust4220Cal
int32 DAQmxAdjust4220Cal (uInt32 calHandle, const char channelNames[], float64 gain, float64 inputVal);
Purpose
Adjusts the internal and external calibration constants for the SCMP pod on the PXI-4220 device. You must supply a known voltage to the device and specify that voltage with inputVal.
This device needs reference signals of 0.0 volts at gains of 1, 15, 20, and 310 on a particular channel in order to perform an offset calibration for that channel. If those points are not manually supplied, they will be automatically measured internally with sample and hold enabled.
Parameters
| Input | ||
| Name | Type | Description |
|---|---|---|
| calHandle |
|
A reference to the calibration session that you created using the DAQmxInitExtCal function. |
| channelNames | const char [] | The physical channel(s) to calibrate. |
| gain | float64 | The gain value on the SCMP pod to calibrate. |
| inputVal | float64 | The known voltage, in volts, to use as a reference for calibration. |
Return Value
| Name | Type | Description |
|---|---|---|
| status | int32 | The error code returned by the function in the event of an error or warning. A value of 0 indicates success. A positive value indicates a warning. A negative value indicates an error. |