Solution
The PXIe-789x module allows configuration of AI/AO voltage levels and DIO settings through LabVIEW using the Host VI.
You can refer to the example project located at:
C:\Program Files\NI\LVAddons\flexrioii\1\ProjectTemplates\Source\FlexRIO\NI789X\Basic
This example demonstrates how to configure the voltage levels and I/O settings for the PXIe-789x module from the Host VI.
For AI and AO, the voltage level can be configured independently for each channel. As shown in the example project, individual channels can be assigned different voltage level settings rather than sharing a single setting across all 16 channels of the module.
For DIO, the direction setting can be configured on a per-line basis, allowing individual lines to be defined as inputs or outputs. However, the DIO voltage level is configured per connector rather than per individual line.