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NI decreases system jitter

Posted: 18 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:national instruments? ni? cfp-ai-118? compact fieldpoint? cfp/fp-dio-550?


National Instruments announced two Compact FieldPoint devices that offer engineers and machine builders improvements in their control systems, including reducing the number of required modules and system jitter.

The cFP/FP-DIO-550 is a 16-channel digital input/digital output module that measures eight digital inputs with a range of 11Vdc to 30Vdc, and sources eight outputs from 10Vdc to 30Vdc with 250mA per channel. It offers both digital input and digital output channels, effectively replacing two modules with a single module, said NI. This device also delivers 250V CAT II safety isolation to backplane, as well as interfacing for discrete sensors and actuators. It offers a user-selectable input filter and has a range of 1?s to 65ms.


The second module, cFP-AI-118, is an eight-channel analog input module that measures eight analog inputs at 16bit resolution and offers a 10kS/s per channel sampling rate with a range of zero to 1-, 5-, 10- or 15V, and 1-, 5, 10 or 15V. In addition to high resolution and simultaneous sampling, the cFP-AI-118 is designed on a new architecture that offers a dual port memory module, reducing system jitter. This new product also features 750Vrms channel-to-channel isolation and 2,300Vrms channel-to-backplane isolation, verified by a one-minute dielectric withstand test.

Target applications for the two Compact FieldPoint devices include industrial control applications that require multiple types of inputs and outputs in one bank, or where high-voltage channel-to-channel isolation is essential due to ground loops and similar conditions that could damage control equipment.

Compact FieldPoint
The Compact FieldPoint platform is designed for high-vibration applications, withstanding 50g of shock and 5g of RMS vibration, even when mounted on heavy machinery or in vehicles. These devices operate in temperatures ranging from -40C to 70C so users can run embedded LabVIEW applications in extreme environments.

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