NI-TClk
PXI and RTSI Trigger Lines

NI-TClk uses the PXI trigger lines and the RTSI trigger lines to share signals between devices.

Using the PXI Trigger Lines

Caution  Because PXI_CLK10 and the PXI trigger lines are essential for synchronization, you must use a PXI chassis. You cannot use a CompactPCI chassis that is not also a PXI chassis.

To use the routing provided by the high-level NI-TClk VIs or functions, and to avoid getting errors, configure your PXI system in MAX.

Configuring your PXI system requires two steps: identifying the PXI system controller and identifying the PXI chassis.

Note  If you want to directly drive certain PXI trigger lines with a device that is not listed under Devices and Interfaces»NI-DAQmx Devices in the MAX Configuration tree, you also need to statically reserve those PXI trigger lines in MAX.

For more information about configuring your PXI system, refer to the Measurement & Automation Explorer Help for PXI. To access this help file, launch MAX, and select Help»Help Topics»PXI.

Using the RTSI Trigger Lines

To use the routing provided by the high-level NI-TClk VIs or functions and to avoid getting errors, connect the devices with a RTSI cable and create a new device entry for the RTSI cable in MAX. For information about connecting your devices with a RTSI cable, refer to the device documentation.

Note  If you want to directly drive certain RTSI lines with a device that is not listed under Devices and Interfaces»NI-DAQmx Devices in the MAX Configuration tree, you need to reserve those RTSI lines in MAX.

For more information about using the RTSI trigger lines, refer to the Measurement & Automation Explorer Help for NI-DAQmx. To access this help file, launch MAX, and select Help»Help Topics»NI-DAQmx.