Measurement Computing DAQFlex - Manual (Page 12)

DAQFlex Message-based Firmware Specification Analog input calibration messages
12
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