Справочник Пользователя для National Instruments Welding System 321645c-01

Chapter 2

Function Reference — MIO_Calibrate

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 National Instruments Corporation

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NI-DAQ FRM for PC Compatibles

calOP determines the operation to be performed.

1:

Load calibration constants from EEPROMloc.

2:

Calibrate the ADC using internal reference voltage calibration constants in 
refLoc.

3:

Calibrate the DACs using internal voltage calibration constants in refLoc; 
DAC0chan and DAC1chan are the analog input channels to which DAC0 and 
DAC1 are connected, respectively.

4:

Calibrate the internal reference voltage. You must connect a DC voltage of 
calRefVolts to the analog input channel calRefChan. The calibration constants 
are always stored in refLoc.

5:

Copy ADC calibration constants from EEPROMloc to EEPROM load area.

6:

Copy DAC calibration constants from EEPROMloc to EEPROM load area.

saveNewCal is only valid when calOP is 2 or 3.

0:

Do not save new calibration constants in EEPROMloc.

1:

Save new calibration constants in EEPROMloc.

EEPROMloc selects the storage location in the onboard EEPROM. You can use different sets 
of calibration constants to compensate for configuration or environmental changes.

For the AT-MIO-16F-5:

1:

User calibration area 1.

2:

User calibration area 2.

3:

User calibration area 3.

4:

User calibration area 4.

5:

User calibration area 5 (initial load area).

6:

Factory calibration area (you cannot write into this area).

i16

AI channel that the calibration voltage is 
connected to

i16

AI channel that DAC0 is connected to

i16

AI channel that DAC1 is connected to

f64

DC calibration voltage

i16

source of the internal voltage reference constants