environmental/csa test stand automation

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Environmental / CSA Test Stand Automation Ap




Environmental / CSA Test Stand Automation — Application:

A major appliance manufacturer needed to automate the mea-surement of temperature in an oven test stand. This sounds

like a very simple system, and conceptually it is. However, thesystem requires monitoring over 1700 thermocouples. The cur-rent, manual method of monitoring the temperature requires upto four technicians monitoring a bank of digital panel metersand making manual entries into a test log. This is inefficient, er-ror prone and makes it difficult to prepare the data for presen-tation, analysis and archiving.

Using the PowerDNA DNA-PPC8 Cubes in conjunction with theDNA-AI-207 analog input board, the system is completely imple-mented in 18 Cubes. The Cubes are distributed around the test

chamber, minimizing the length of thermocouple wire required.The built-in single port Ethernet switch provides in the PowerD-NA Cube allows the Ethernet to be daisy chained from one cubeto the next. This means the entire system may be implementedusing a single Ethernet port on the host computer.

Software for this particular system was written using theUEIDAQ Framework. The Framework provides a powerful, yetsimple set of drivers that may be called from all popular pro-

gramming languages and applications packages (eMATLAB) and supports not only Windows/Vista, band most popular Real-Time operating systems incRTX and XPC.

The system required to monitor and log 1728 thermshown below:

Product Description / Usage

DNA-PPC8 Ethernet based PowerDNA Cubes I/O slots. The UEIDAQ Frameworkincluded with the purchase of the

DNA-AI-207 16 channel, 18-bit analog input boadditional channel dedicated to Co

Compensation measurement. Provmeasurement

DNA-CBL-37S 8-channel counter timer boards arcounters to monitor the quadratursignals.

DNA-STP-207TC Screw Terminal Panel provides intethe TCs as well as a Cold Junction sensor mounted in a large isotherm




Environmental / CSA Test Stand Automation — UEI Products

DNA-PPC8 DNA-AI-207

DN

The PowerDNA® (Distributed Networked Automa-tion) Cube is a compact, rugged, Ethernet based DAQinterface. Its flexibility allows you to configure one ormore cubes to match the specific I/O requirements ofyour application. The PowerDNA Cube is ideally suitedfor a wide variety of industrial, aerospace and labora-tory data acquisition and control applications.

The DNA-AI-207 layer features 16 differentialinput channels with maximum sampling rate of1kS/s per channel, wide range of gains, 18-bitresolution, and ±10V input range.

The PowerDNA Cube is supported by all poLinux and Real-time operating systems. Ouprovides a simple and universal API and suprogramming languages. The Cube is also fextensive array of application packages incLAB, DASYLab and more.

3ft, 3cable

DNAScrewvides the TCJunctimoun

mal b

About PowerDNA:



Founded in 1990, UEI is a leader in the computer based data acquisition

and control industry. Serving customers world-wide, UEI products based

upon PCI, PXI, ISA and Ethernet interfaces offer unequaled performance as

well as flexibility. We are committed to providing the highest quality hard-

ware, software and services, enabling engineers and scientists to inter-

face data-acquisition and control hardware to the real world. Through our

state-of-the-art technologies we serve the needs of individual researchers

and developers as well as OEMs.

© 2007 United Electronic Industries, Inc.

environmental/csa test stand automation

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