IMG_ATTR_BLACK_REF_VOLT

NI IMAQ Function

IMG_ATTR_BLACK_REF_VOLT

Gets/sets the black reference level, in volts, of the channel associated with this session. Refer to the following tables for value ranges that are valid for each device.

Note  The black reference level must be less than the white reference level.

Remarks

The following table shows when the property is readable and writable and what devices it applies to.

Datatype Readable Writable Device Range (volts)
Double Always Configuration NI 1405 0
Double Always Always NI 1407 (PCI Rev A through D) 0 to 1.26
Double Always Always NI 1407 (PCI Rev E or later) 0 to 0.5
Double Always Always NI 1407 (PXI All Revs) 0 to 1.26
Double Always Configuration NI 1409 0 to 1.4
Double Always Configuration NI 1410 0 to 1.4
Double Always Configuration NI 1411 0