Measurement-computing DAQFlex Uživatelský manuál stáhnout pdf (Strana 12)

DAQFlex Message-based Firmware Specification Analog input calibration messages

Analog input calibration messages

The AI and AICAL components provide messages for calibrating the analog inputs on a device. Refer to

the device-specific information in the Hardware Reference chapter for the component properties and

commands supported by each DAQ device.

AI component calibration properties (USB-2408 series only)

ADCAL/START, ADCAL/STATUS

ADCAL/START

 Start the A/D internal calibration.

Message

"AI:ADCAL/START"

Response

"AI:ADCAL/START"

ADCAL/STATUS

 Get the status of the A/D internal calibration.

Message

"?AI:ADCAL/STATUS"

Response

"AI:ADCAL/STATUS=value"

value

RUNNING, IDLE

AICAL component calibration properties (USB-1608G Series and USB-2408 Series only)

LOCK, MODE, OFFSET, RANGE, REF, REFVAL, RES, SLOPE, TCCAL, UNLOCK, VALUE

LOCK

 Lock the AICAL component.

Message

"AICAL:LOCK"

Response

"AICAL:LOCK"

Note

The device returns INVALID if any AICAL property message is accessed while the AICAL

component is locked.

MODE

 Set the calibration channel mode.

Message

"AICAL:MODE=value"

Response

"AICAL:MODE"

value

AIOFFSET, AIGAIN, TCOFFSET, TCGAIN/POS, TCGAIN/NEG

Example

"AICAL:MODE=TCOFFSET"

 Get the calibration channel mode.

Message

"?AICAL:MODE"

Response

"AICAL:MODE=value"

value

AIOFFSET, AIGAIN, TCOFFSET, TCGAIN/POS, TCGAIN/NEG

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