National Instruments 636 Series User Manual

8-2 | ni.com
Chapter 8 PFI
Using PFI Terminals as Timing Input Signals
Use PFI terminals to route external timing signals to many different X Series functions. Each
PFI terminal can be routed to any of the following signals:
• (NI 632
x/634x/6351/6353/6355/6361/6363/6365/6375 Devices) AI Convert Clock
(ai/ConvertClock)
• AI Sample Clock (ai/SampleClock)
• AI Start Trigger (ai/StartTrigger)
• AI Reference Trigger (ai/ReferenceTrigger)
• AI Pause Trigger (ai/PauseTrigger)
• AI Sample Clock Timebase (ai/SampleClockTimebase)
• AO Start Trigger (ao/StartTrigger)
• AO Sample Clock (ao/SampleClock)
• AO Sample Clock Timebase (ao/SampleClockTimebase)
• AO Pause Trigger (ao/PauseTrigger)
• Counter input signals for all counters—Source, Gate, Aux, HW_Arm, A, B, Z
• Counter n Sample Clock
• DI Sample Clock (di/SampleClock)
• DI Sample Clock Timebase (di/SampleClockTimebase)
• DI Reference Trigger (di/ReferenceTrigger)
• DO Sample Clock (do/SampleClock)
Most functions allow you to configure the polarity of PFI inputs and whether the input is edge
or level sensitive.
Note (NI PXIe-6386/6396 Devices) PXIe-6386 and PXIe-6396 devices differ in
several ways from other SMIO devices. For more information about sample clock
rates related to these devices, go to ni.com/info and enter the Info Code
smio14ms.
Exporting Timing Output Signals Using PFI
Ter minals
You can route any of the following timing signals to any PFI terminal configured as an output:
• (NI 632
x/634x/6351/6353/6355/6361/6363/6365/6375 Devices) AI Convert Clock
*
(ai/ConvertClock)
• AI Hold Complete Event (ai/HoldCompleteEvent)
• AI Reference Trigger (ai/ReferenceTrigger)
• AI Sample Clock (ai/SampleClock)

National Instruments 636 Series Specifications

General

Brand	National Instruments
Model	636 Series
Category	Data Loggers
Language	English