NI-9264 Vendor Configuration Extensions
- Updated2024-09-13
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NI-9264 Vendor Configuration Extensions
The following table lists the vendor configuration extensions for the NI-9264.
Index | Sub | Type | R/W | Description |
---|---|---|---|---|
0x2100 | 0 | ARR:U32 | — | Calibration = 64 |
1 | R | Ch0 Offset | ||
2 | R | Ch0 Gain | ||
3 | R | Ch1 Offset | ||
... | — | — | ||
32 | R | Ch16 | ||
33 | R | External Ch0 Offset | ||
... | — | — |
NI-9264 Calibration Data
The NI-9264 has 16 channels with a nominal range of ±10.5 V. Each channel has an associated LSB weight, which is the number of volts per bit, and an offset, which is the number of volts per bit measured when the inputs are grounded.
Note LSB weight is referred to as gain in the
object dictionary.
The calibration data is stored in a U32 array, though each offset field (subindex 1, 3, 5, and so on) should be interpreted as a signed value.
Coefficient | Representation | Units |
---|---|---|
LSB Weight | Unsigned | pV/LSB |
Offset | Signed | nV |
Use the calibration coefficients with the following equation to generate corrected data.
where Code represents the code returned by the NI-9264 and Vdesired represents the corrected voltage value.