Handshake Timing Defaults

The following table lists the default terminals used for handshake timing for NI 653X devices. There are two timing engines in NI 653X devices. Each timing engine is associated with PFI lines. The timing engine you use is determined by the digital lines you use. If the least significant port is port 0, NI-DAQmx picks Timing Engine 0. If the least significant port is port 2, NI-DAQmx picks Timing Engine 1.

Device Handshake Trigger Default Handshake Event Default
NI PCI-6533 (DIO-32HS) PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1)
NI PCI-6534 PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1)
NI PXI-6533 PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1)
NI PXI-6534 PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1)

The recommended sample clock terminal for burst handshake timing is PFI4 (Timing Engine 0), PFI5 (Timing Engine 1).