The PXIe-5423 supports synchronization using the NI-TClk API with a single NI-FGEN session per PXIe-5423. NI-TClk synchronization support for the PXIe-5423 was first available in NI-FGEN 18.1.
You can synchronize the PXIe-5423 with other instruments using PXIe_Clk100 as the Reference Clock source and NI-TClk.
Use the NI-FGEN Absolute Delay property or NIFGEN_ATTR_ABSOLUTE_DELAY attribute to reduce trigger jitter or to maintain synchronization repeatability when synchronizing multiple instruments with NI-TClk. Phase DAC adjustment is not supported.
The channels of a two-channel PXIe-5423 are automatically synchronized when they are in the same NI-FGEN session.
Synchronization with NI-TClk is not supported with multiple channel-based NI-FGEN sessions to a single two-channel PXIe-5423.