The Arbitrary Waveform Generator can load custom waveforms from comma- or newline-delimited text. The maximum number of points depends on the sample rate. The relationship between the number of points and the sampling rate for each device can be found in the user manuals or in Tables 1 through 3 found below for each device. 

Please note that the LUT data needs to be a 1D array of amplitude values. The AWG assumes that they are evenly spaced over the set waveform period. The values will be normalized to the range [-1.0, +1.0] and then scaled to the desired amplitude and offset.

Python:

You can use the lut_data parameter in the generate_waveform function to upload the lookup table amplitude values from an array that was previously defined. For additional documentation on the generate_waveform function, please refer to the Moku API reference documentation.   You can find a Python example here.

MATLAB:

The procedure for MATLAB is similar to that of Python where you will need to define a 1D array of amplitude value points and call it as a parameter in the generate_waveform function. You can find additional documentation on the generate_waveform function in the Moku API reference online.  You can find a MATLAB example here.

LabVIEW:

The Moku AWG generate_waveform.vi's input control LUT Data is the 1d data array used to define a custom waveform.  Figures 1 and 2 show how to modify the Arbitrary Waveform Generator Example.vi block diagram to read LUT Data from a file.  The Arbitrary Waveform Generator Example.vi can be found in LabVIEW by going to Help -> Find Examples, from the Browse tab change the view to Directory Structure, then go to Liquid Instruments -> Liquid Instruments Moku.

Figure 1: Example vi with LUT data coming from the signal generator

Figure 2: Modified example to load custom waveform (LUT data) from a file. 

Moku:Pro

Table 1: Moku:Pro's maximum number of points for each sampling rate 

Moku:Lab

Table 2: Moku:Lab's maximum number of points for each sampling rate 

Moku:Go

Table 3: Moku:Go's maximum number of points for each sampling rate