Pxi Considerations; Pxi Clock And Trigger Signals; Pxi And Pxi Express - National Instruments PXI-6289 User Manual

Programmed I/O—Programmed I/O is a data transfer mechanism where the user's
•
program is responsible for transferring data. Each read or write call in the program initiates
the transfer of data. Programmed I/O is typically used in software-timed (on-demand)
operations. Refer to the
Analog Output, for more information.
Note USB Signal Stream channels are assigned to the first four
measurement/acquisition circuits that request one. When a USB Signal Stream is not
available, you must set the data transfer mechanism to programmed I/O; otherwise
the driver returns an error. To change your data transfer mechanism between USB
Signal Stream and programmed I/O, use the Data Transfer Mechanism property
node function in NI-DAQmx.

PXI Considerations

PXI clock and trigger signals are only available on PXI devices.

PXI Clock and Trigger Signals

Refer to the PXI_CLK10,
Digital Routing and Clock
Chapter 9,
trigger signals.

PXI and PXI Express

NI PXI M Series devices can be installed in any PXI chassis and most slots of PXI Express
hybrid chassis. NI PXI Express M Series devices can be installed in any PXI Express slot in
PXI Express chassis.
PXI specifications are developed by the PXI System Alliance (
terminology of the PXI specifications, some NI PXI M Series devices are 3U Hybrid
Slot-Compatible PXI-1 Peripheral Modules. Refer to your device specifications to see if your
PXI M Series device is hybrid slot-compatible.
3U designates devices that are 100 mm tall (as opposed to the taller 6U modules).
Analog Output Data Generation Methods
PXI Triggers, PXI_STAR
Generation, for more information about PXI clock and
Trigger, and PXI_STAR Filters
www.pxisa.org
© National Instruments | 10-3
M Series User Manual
section of Chapter 5,
sections of
). Using the