I have a pcie-6374 board and the board was connected to a SCB-68A I/O box. I 'm upset to runing a analog input task with analog start trigger. The analog trigger signal was generated by a swept source and displayed red line in the oscilloscope, as shown in the picture. A simple analog input task was created by using DAQmx, as seen in attachment. To achieve analog start triggering, I connect the trigger signal to PFI0 connector on the board. In labview, I using "Triggering" and set "start Analoog Edge", the souce was set "/Dev1/PFI0". However, the sampling task does not good runing. How can I start analog input sampling of ai0 on every rising edge of trigger signal?