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Chapter 2 Function Reference — MIO_Calibrate
NI-DAQ FRM for PC Compatibles 2-280
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National Instruments Corporation
MIO_Calibrate
Format
status = MIO_Calibrate (deviceNumber, calOP, saveNewCal, EEPROMloc, calRefChan,
DAC0chan, DAC1chan, calRefVolts, refLoc)
Purpose
Note
If you have an E Series device, use Calibrate_E_Series.
You can use this function to calibrate your AT-MIO-16F-5, AT-MIO-64F-5, and
AT-MIO-16X devices. You need to calibrate your device under the following conditions:
• If it is operating in an environment with a temperature that differs by more than 10° C
from the temperature at which the device was calibrated. Your device is calibrated at the
factory at room temperature (25° C).
• Once every year.
You can perform a new calibration or use an existing set of calibration constants by copying
the constants from their storage location in the onboard EEPROM. You also can store
calibration constants. NI-DAQ automatically loads the calibration constants stored in the
EEPROM load area the first time you call a function pertaining to the AT-MIO-16F-5,
AT-MIO-64F-5, or AT-MIO-16X devices that requires calibration constants to be loaded
(when you call an
AI, AO, DAQ, SCAN, or WFM function).
The load area for the AT-MIO-16F-5 is user area 5. The load area for the AT-MIO-64F-5 and
AT-MIO-16X is user area 8.
Caution
Read the calibration chapter in your device user manual before using
MIO_Calibrate.
Parameters
Input
Name Type Description
deviceNumber i16 assigned by configuration utility
calOP i16 operation to be performed
saveNewCal i16 save new calibration constants
EEPROMloc i16 storage location
!