Library of capabilities: QNX RTOS support for DAQ


Information control/software

Library of QNX RTOS drivers supporting UEI's PowerDNA series of data acquisition and control cubes is said to help developers generate data acquisition and control programs more quickly and easily.

Canton, MA —QNX real-time operating system (RTOS) support is now available for United Electronics Industries ' (UEI) PowerDNA series of data acquisition and control cubes. The library is said to give QNX developers the functionality and ease of use of UEI's standard Microsoft Windows and Linux interfaces while taking advantage of QNX's deterministic timing. Library may be deployed on any host computer running the QNX RTOS and connected to the PowerDNA cube over Ethernet (10/100baseT).

Product is reportedly compatible with all versions of QNX including revisions 4.x and 6.x. Support package includes example and demonstration programs and documentation. QNX library supports three operating modes:

  • Immediate mode : Host polls data from or writes data to the cube in a software-controlled mode.

  • DMAP : Cube acquires data paced by its internal clock and transfer each scan over the network to the host. DMAP mode is intended for high-speed, real-time control applications. Protocol reportedly "guarantees" 1,000 analog/digital I/O points are updated in less than a millisecond.

  • Circular buffer : In the advanced circular buffer (ACB) mode, the cube acquires data paced by its internal clock and transfers it into buffers over the network to the host. The buffer ensures that no data are lost when the network is performing other tasks.

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
Variable speed drives: Smooth, efficient, electrically quite motion control; Process control upgrades; Mobile intelligence; Product finalists: Vote now; Product Exclusives
Machine design tips: Pneumatic or electric; Software upgrades; Ethernet advantages; Additive manufacturing; Engineering Leaders; Product exclusives: PLC, HMI, IO
This article collection contains the 5 most referenced articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security