Multifunction Input and Output Devices
1 / 24Páginas

Multifunction Input and Output Devices PRODUCT FLYER CONTENTS Multifunction I/O Device PXI Multifunction I/O Module Platform-Based Approach to Test and Measurement Hardware Services

■ Software: Includes DAQExpress™ interactive measurement software as well as API support for LabVIEW and text-based languages, shipping examples, and detailed help files ■ Analog, Digital and Counter/Timer I/O in one device ■ USB or PCI/PCIe bus connectivity ■ Voltage measurements up to 10 MS/s per channel ■ Multiplexed or simultaneous analog architectures ■ Software-selectable input ranges and input channel isolation available ■ Up to four analog output channels and four counters Built for Accuracy and Reliability NI Multifunction I/O Devices provide a combination of analog I/O, digital...

Table 1. NI USB multifunction I/O devices provide a simple plug-in interface with many specification options. Page 3 | ni.com | Multifunction I/O

*ST=Screw Terminals | MT=Mass Termination | BNC=BNC Terminals **Has only dedicated digital input and/or digital output lines Table 2. NI PCI(e) multifunction I/O devices add high quality I/O to a desktop PC. ST Page 4 | ni.com | Multifunction I/O

Page 5 | ni.com | Multifunction I/O

Page 6 | ni.com | Multifunction I/O

*Simultaneous - sample rate is per output channel Page 7 | ni.com | Multifunction I/O

Mass termination for cabled connectivity *Screw terminal and BNC terminal variants also available Page 8 | ni.com | Multifunction I/O

Mass termination for cable connectivity Stream data through PCI Express Page 9 | ni.com | Multifunction I/O

High Resolution, High Accuracy Analog Measurements NI Multifunction I/O Devices have analog signal paths that have been meticulously designed, tested, and calibrated to ensure the highest possible accuracy is achieved across all input channels. Because of this thorough design-and-test philosophy, NI is able to provide thoroughly documented accuracy specifications to allow a complete understanding of device performance under a range of possible operating conditions. The specifications documentation for each device provides a section dedicated to understanding the calculation of AI absolute...

Independent Timing Engines for Analog and Digital I/O Advanced timing and triggering functionality on data acquisition devices has often relied on onboard counters and complex signal routing to achieve specialized hardware-timed performance. NI’s multifunction I/O technology offers completely independent sample clocks and triggers for each different group of I/O on a multifunction device. Retriggerable acquisitions, for example, involve waiting for a trigger condition to be met, taking a finite number of samples, and then immediately rearming the trigger for the next acquisition. Using...

NI-DAQmx Application Programming Interface (API) The NI-DAQmx driver includes a best-in-class API that works directly with a variety of development options including LabVIEW, DAQExpress, C, C#, Python, and others. The native integration provides exceptional performance and a seamless experience without the need for manual wrapping of functions. To ensure long-term interoperability of DAQ devices, the NI-DAQmx driver API is the same API used for all NI DAQ products - meaning re-development efforts can be minimized regardless of hardware changes or upgrades. Additionally, the driver provides...

■ Software: Includes API support for LabVIEW and text-based languages, complete with shipping examples and detailed help files. ■ Voltage measurements up to 10 MS/s per channel ■ Analog, Digital and Counter/Timer I/O in one device ■ Multiplexed or simultaneous analog architectures ■ Software-selectable input ranges and input channel isolation available ■ Up to four analog output channels and four counters/timers ■ PXI and PXI Express platform compatibility Page 13 | ni.com | Multifunction I/O

Built for Accuracy and Reliability NI PXI Multifunction I/O Modules provide a combination of analog I/O, digital I/O, and counter/timer functionality in a single device for PXI-based systems. PXI Multifunction I/O Modules offer a mix of I/O with varying channel counts, sample rates, output rates, and other features to meet many common measurement requirements. These devices are ideal for a wide variety of industry applications such as laboratory automation, research, and design verification. The included NI-DAQmx driver enables complete customization of measurement and automation...

Page 15 | ni.com | Multifunction I/O Flyer

Page 16 | ni.com | Multifunction I/O Flyer

*Simultaneous - sample rate is per output channel Mass termination connectivity -cabled to terminal block Page 17 | ni.com | Multifunction I/O Flyer

Key Features High Resolution, High Accuracy Analog Measurements NI PXI Multifunction I/O Modules have analog signal paths that have been meticulously designed, tested, and calibrated to ensure the highest possible accuracy is achieved across all input channels. Because of this thorough design-and-test philosophy, NI is able to provide thoroughly documented accuracy specifications to allow a complete understanding of device performance under a range of possible operating conditions. The specifications documentation for each Device provides a section dedicated to understanding the calculation...

group of I/O on a multifunction device. Retriggerable acquisitions, for example, involve waiting for a trigger condition to be met, taking a finite number of samples, and then immediately rearming the trigger for the next acquisition. Using driver software function calls to rearm the trigger risks missing the next trigger due to software latency; therefore, the best possible performance requires a hardware-timed approach. In the past, counters were the only way to implement hardware-timed retriggering, and so counters would be used to generate a retriggerable pulse train, which was then...

Synchronization and Integration PXI Multifunction I/O Modules use the inherent timing and synchronization capabilities of the PXI platform to synchronize measurements between multiple modules, which is ideal for high-channel-count applications. PXI builds on its CompactPCI architecture base by adding integrated timing and synchronization that is used to route synchronization clocks and triggers internally. A PXI chassis incorporates a dedicated 10 MHz system reference clock, PXI trigger bus, star trigger bus, and slot-toslot local bus, while a PXI Express chassis adds a 100 MHz differential...