NI PXI/PXIe-2569 Triggering

This module can recognize trigger pulse widths less than 150 ns by disabling digital filtering.

Trigger Input

The following table lists valid trigger inputs for the NI PXI/PXIe-2569 (NI 2569).

Trigger Input Software Hardware
Immediate Immediate(NISWITCH_VAL_IMMEDIATE) N/A
TTL0 TTL0(NISWITCH_VAL_TTL0) PXI trigger line 0
TTL1 TTL1(NISWITCH_VAL_TTL1) PXI trigger line 1
TTL2 TTL2(NISWITCH_VAL_TTL2) PXI trigger line 2
TTL3 TTL3(NISWITCH_VAL_TTL3) PXI trigger line 3
TTL4 TTL4(NISWITCH_VAL_TTL4) PXI trigger line 4
TTL5 TTL5(NISWITCH_VAL_TTL5) PXI trigger line 5
TTL6 TTL6(NISWITCH_VAL_TTL6) PXI trigger line 6
TTL7 TTL7(NISWITCH_VAL_TTL7) PXI trigger line 7
Software Trigger niSwitch Send Software Trigger VI or niSwitch_SendSoftwareTrigger function N/A

Scan Advanced Output

The following table lists valid scan advanced outputs for the NI 2569.

Scan Advanced Output Software Hardware
None None(NISWITCH_VAL_NONE) N/A
TTL0 TTL0(NISWITCH_VAL_TTL0) PXI trigger line 0
TTL1 TTL1(NISWITCH_VAL_TTL1) PXI trigger line 1
TTL2 TTL2(NISWITCH_VAL_TTL2) PXI trigger line 2
TTL3 TTL3(NISWITCH_VAL_TTL3) PXI trigger line 3
TTL4 TTL4(NISWITCH_VAL_TTL4) PXI trigger line 4
TTL5 TTL5(NISWITCH_VAL_TTL5) PXI trigger line 5
TTL6 TTL6(NISWITCH_VAL_TTL6) PXI trigger line 6
TTL7 TTL7(NISWITCH_VAL_TTL7) PXI trigger line 7

Refer to the niSwitch Configure Scan Trigger VI or the niSwitch_ConfigureScanTrigger function for descriptions and values of the trigger inputs and scan advanced outputs.