DASYLabData Acquisition System Laboratory

The Easy-To-Use Software

www.dasylab.net

®

DASYLab®

Data Acquisition System Laboratory

DASYLab – Online Data Acquisition

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RS232 Interface

IEEE Interface

Parallel Port

PCI Bus

SPS Simatic S7

PCMCIA PC cards

INTERBUS

CAN Bus

PXI/CompactPCI Bus

Ethernet

USB

MODBUS

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Bus

DASYLab – the Easy-To-Use Software

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Data Logger

Multi-channel Chart Recorder

Frequency Analyzer

Trigger Monitoring

Frequency Maximum

Reference Curve Monitoring

Two-channel Oscilloscope

Simply one function module and DASYLab is a high speed datalogger.It takes just a few steps to acquire data at speeds up to 1MHz,storing them directly to the hard drive using the built-in diskstreaming function.

Use the chart recorder module and the A/D-Input module to linkDASYLab to your hardware and you have built a multichannelchart recorder to display slower data.Many options, hide single channels or display all channels inone chart etc., allow you to configure the charts to your ownneeds. This “paperless” chart recorder offers more benefitsthan its “paper-using” namesake.

DASYLab is as simple to use as an oscilloscope as it is to useas a chart recorder. Instead of the chart recorder module usethe Y/t chart module to visualize your “fast” data.With continuous online data acquisition and online visualisationat speeds up to 250 kHz you can meet any challenge.

You can continuously monitor a signal with one of the manyDASYLab Trigger modules. In addition to standard Triggerfunctions such as Start-/Stop or Pre-/Post-Trigger, DASYLaboffers the Trigger On Demand to selects single valuesdepending on the curve of the signal, and the Sample Trigger,to trigger based on the duration of the trigger event. The TTL-level output signals are useful in many controlapplications or can simply control the data flow in the program.

Complex signal analysis is quickly configured using some ofthe Easy-To-Use function modules. Just add a FFT module tothe oscillocope setup, and you have a Frequency Analyzer thatoffer a wide range of settings and applications for theexperimenter.

If the maximum frequency in your frequency spectrum is ofinterest to you, just enlarge the DASYLab “FrequencyAnalyzer” with a few additional modules.First, configure a second Y/t chart module to shows theoriginal signal.Add the Statistical Values module to calculates the maximumfrequency of the signal. Finally display the maximum using aDigital Meter module.On starting the experiment, your Signal and the frequencyspectrum immediately displayed as charts and the maximumfrequency is displayed as a digital value.

If you need, for example, to check the thermal response usinga predefined temperature curve, DASYLab provides theSequence Generator module, the Check Reference Curvemodule and the Digital Output module - all suitable instrumentsfor this type of control application.Create a Reference Curve by performing some test runs of yourexperiment and then just define a corridor around the curve.DASYLab recognizes each crossing of that border and react inthe run of program,alert you or perform a control operation.

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DASYLab – Function Modules

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Analog In-/Output:up to 32 input modules and up to 512 channelsup to 2 output modules and up to 32 channelsDigital In-/Output:up to 32 input modules and up to 512 channelsup to 2 output modules and up to 32 channelsCounter Input:up to 2 modules and up to 32 channels

Frequency Output:up to 2 modules and up to 32 channels

RS 232 Input:extremly expandable with Master/ Slave modules (up to 256 channels with each serial interface)

RS 232 Output:output of data or fixed strings for up to 16 channels

Icom Input:Universal serial module to be used with TCP/IP,GPIB andRS232. Master-/ Slave modules with max. 256 channels.

Icom Output: Output of data or Strings via TCPIP, GPIB or RS232.

IEEE 488 In-/Output:supports National Instruments, INES (Input only), or IOtechhardwareDDE In-/Output:up to 16 modules and up to 256 channels

IVI Modules:Handles devices with an IVI compatible interface (Oscillos-cope, Multimeter, Function Generator).MODBUS Modules: With these modules the MODBUS protocol enables DASYLabto address devices connected to several bus architectures.

Generator:Signal generation with frequency and amplitude modulationSwitch:On/off or momentary switch for program and data controlCoded Switch: Select from preset values by positioning a rotating switchor clicking on buttons.Slider:Definable signal range; signal level to be modified duringmeasurementPID Control: Proportional, integral and derivative components can bespecified freely; new auto-tuning functionTwo Point Control: Up to 8 control circuits. Selectable set values arecompared with actual values Time Delay: Data output after a specified period of time

Latch:Constantly outputs the input value received last

TTL Pulse Generator: generates TTL signals with specified duration and switchconditionsRead Variable:Read Global Variable to generate a data channel to be usedin the worksheetSave Variable:Save data channel to a Global Variable to be used inmodule parameters and computationsRouter:Route data channel based on control input (amplitude oredge) or based on time (blocks, time, or action controlled)Block Time: Extracts the time information of a block and puts time anddate into global variablesStop:stops or interrupts measurement according to specifiedconditions

Start/Stop Trigger: Selectable start and stop conditionsPre/Post Trigger:Amplitude- and slope-based triggers with hysteresis can be specified

Combi Trigger: Separate signal segments according to logical conditions

SampleTriggerSeparate intervals of a signal based on a predeterminednumber of samples.Trigger on Demand Separate samples depending on the dynamic behavior of thesignals.Relay:Control up to 15 channels with one input signal

Filter:Digital IIR filter with definable order and characteristics

Correlation:Compute correlation coefficient, cross-correlation,autocorrelation, cepstrumData Window:Various types of evaluation windows, e.g. rectangle,Gauss, Bartlet and other typesFFT:Calculate and analyse the discrete spectrum of a signalPolar/Cartesian:Convert data values between polar and cartesiancoordinatesElectrical Characteritics:Use the values of Current and Voltage to calculateelectric characteristics such as Ueff, cosp etc..Harmonic Distortion:Calculates the amplitude and phase of the fundamentalfrequency and up to 48 harmonic waves.Period Check:Calculates the period of a signal by checking its zerocrossings.

Read Data:Read data from floppy/hard disk files; supports DASYLab,IEEE-32-bit, ASCII formatWrite Data:Write data to floppy/hard disk files; supports DASYLab, IEEE-32-bit, ASCII, Diadem and other formats

ODBC Input/Output: Exchange data between DASYLab and ODBC data bases.

Y/t Chart:High-speed scope display for fast data with a wide range ofdisplay optionsX/Y Chart: Display data blocks of two dependent signals as an X/Y plot,including a Polar plot view.Polar Plot Chart: Display data blocks of two dependent signals (X/Y or polardata) in polar coordinates with a third data as flags.Analog Meter:Provides several shapes of instruments and offers peak holdand trend indicator optionsDigital Meter:Display the value, with trend display and lower/upper marks.Formats include decimal, hex, octal, binary, ASCII & ClockBar Graph:Bar (horizontal/vertical), thermometer, LED or triangle style;trend and range display optionsChart Recorder:Chart display for slow data, wide display area and a widerange of display options.List:Show data values displayed in list form; several formatting optionsStatus Lamp:TTL or Digital Signal status displayed as text and/or images.

Control

Trigger

Signal Processing

Display

Files

Inputs/Outputs

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Statistical Values: Compute max/min, average, effective values, varianceand standard deviationPosition in Signal: Extract the value position as defined by sample number,date/time or frequencyHistogram:Classify data according to specific intervals and numbersof classesRegression:Calculate constant, linear or polynomial regression curvesup to an order of 20Counter:Count blocks, edges, samples, maxima/minima,zero/level crossings and duration

Minimum/Maximum:Determine extreme values in the signal flow

Check Reference Curve: Compare the signal with a previously saved referencecurve and signal deviations.Pulse Width Analysis: Calculates the frequency, length of pulses, pauses andpulse/pause ratio in a TTL pulsed signal.Channel Sort: Rearranges the input channels based on their values

Black Box: Sub-worksheet unit containing worksheet sections; use forcommon functions or to manage complexityImport/Export (Black Box): Data interface between worksheet levels (main worksheet andBlack Boxes)Action:Trigger various actions on the occurence of specified events

Message:Display or print an operator message; play a wave/AVI file;send DDE message; log messages to dedicated printerTime base: Extract and output the time or frequency information of a signalSignal Adaptation: Synchronize signal flows of differing characteristicsSend e-Mail: Use Windows E-Mail to send messages to any addressincluding attachments and custom messages/alarms

Average:Reduce data using running or summation averages Block Average/Peak Hold:Reduce data across data blocks using running or summationaverage, or using Peak Hold (Minima or Maxima)Separate:Reduce data by skipping defined number of samples (orblocks) only; outputs one, then repeatsMerge/Expand:Merge data from several channels or distribute signals fromone channel to othersCut Out Block: Output specified samples of a block

Time Slice: Output data from different channels according to specifiedswitch conditionsShift Register: Stores data, one point at a time, into a temporary register,and outputs the block repeatedlyCircular Buffer: Save an interval of the data stream and send it to the modulesoutput via event driven action

Formula Interpreter: Link data from several channels according to mathematicalfunctions entered as formulasArithmetic:Basic arithmetic operations; various operands andexponential functionsTrigonometry:Sine, tangent, arc- and hyperbolic functions

Differentiation/Integration:Integration of signal values or slopes in the signal flowScaling:Linear scaling, interpolation tables, RTD linearization,thermocouple linearization, offset adjust, linear conversionfactors for a large number of measurement systemsSlope Limitation: Limit the difference between valuesReference Curve: Calculates a reference Curve using one or more test runsLogical Operations: Evaluate TTL data from input channels; operators AND, OR,XOR, NAND, NOTBit Operations: Perform logical operations (bit by bit) with the received datawords, combine, extract, mask and shift operationsFlip-Flop:Use bistable trigger elements for intermediate data storage(FlipFlop and MonoFlop)Gray-Code:Decodes signals generated by position encodersChannel Comparator Compares channels and a constant or to correspondingchannels.

Sequence Generator: Generate curves and ramps of different types which canbe combined in many ways.Transfer Function: The Transfer and Coherence functions are calculated forup to 8 pairs of values.Block Weighting: Weight each sample in block by a predefined function.

Convolution:Up to 16 Input signals are processed (superimposed)with digital filters.

Write UFF Format: Write data in the Universal File Format 58 for use insystem analysis.FFT Filter: Frequency intervals of up to 16 signals are filtered withdefined conditions.Universal Filter: Create user defined FIR or IRR Filters with a helpful filterwizard for FIR Filters.FFT Maximum: Calculates the maximum of energy of a FFT spectrum byanalysing intervals of the frequency band.n-th Order Harmonic:Calculates the maximum of the Harmonic up to an orderof 20 of FFT dataRainflow:Several counting algorithms classify samples for Time-Stress AnalysisTwo-channel Classification: Classifies the values of two diferrent temporalfunctions to be used for Time-Stress Analysis.Octave Analysis: This module is used for One-Third or Octave Analysis ofa signal using digital filters optimized to 40KHz

Net Input/Output: Receive or send data to one or more DASYLab Net via aTCP/IPnetwork.Message Input/Output:Receives or Sends messages from or to other DASYLabNet via a TCP/IP network. DataSocket Import/Export: Exchange data with OPC server via network.

Statistics

Special Modules

Network

Data Reduction

Mathematics

Analysis Add-On (optional)

DASYLab – For Fast Online Display

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Use the Y/t Scope module for the display of high-speed data, including Histogram and FFT data. Its wide range of optionsallows individual customization of the display windows. The Sonogram option shows the values encoded with differentcolors for different amplitudes ranges and the 3-D option shows data spatially over time.

The X/Y Chart module provides a wide range of options to display pairs of data. You can select the normal display mode toshow just the data or the polar mode to display an arrow from the zero mark to the X/Y position of data.

Values are displayed as an Analog Meter. Many display options allow you to adapt the display windows individually to meetyour needs. Single values, min/max, average or effective values can be displayed. The instruments have attributes (scales,ranges, pointers, colors, trend indicators) that can be set to suit the data.

Values are displayed as a Digital Meter. A wide range of display options allow you to adapt each Digital Meter display windowto meet your needs. The values are displayed as binary, octal, decimal, hexadecimal or time. Single values, min/max, averageor effective values can be displayed. The instruments have attributes (ranges, pointers, colors, trend indicators, number of digits)that can be set to suit the data.

The Bar Graph module provides different modes to display the data from several channels. Bars are shown vertically orhorizontally and may be shaped just as colored bars, thermometers or LED bars.Trend indicators are also available.Signalsabove or below set ranges can be marked by changes in the bar color.

For display of slow data, use the Chart Recorder module. Values are buffered in DASYLab, so the scroll bar in the displaywindow allows you to survey data of long periods of time; but you can also zoom into any section for closer scrutiny. Curvesare displayed in a common window or separately with different scales.

Depending on the entry value level, the status of each data channel (Level Low / High or predefined level) is shown. These canbe text or bitmap images. You can use any Bitmap as the status symbol. Bitmaps may be different for several status levels,allowing you to create an animated display. You can freely choose colors for background, text, Display and Status lamp symbol.

This module displays data from multiple channels in list form. Use the scroll bar to look back to previous values.

The VITool is a professional tool for process visualization and for creating a user–specific interfaces and reports. You can designup to 200 animated screen pages (Basic/Light/LE version: only one) of unlimited variety, integrating and freely arranging anyof DASYLab’s display instruments as well as text, bitmap images, graphic objects, control buttons, etc. When directly linkedto DASYLab’s Action module, the VITool can activate any of these pages according to current process conditions, thus allowingyou to conveniently view and control the process. In the same easy way, you can create up to 200 report pages. Any of thesecan be printed automatically based on pre–determined events. You will find this powerful tool most useful whenever experimentdocumentation, permanent quality control, test reports, or measurement surveys are required.

X/Y Chart

Y/t Scope Chart

Use the Polar Plot module for the display pairs of high-speed data shown in polar coordinates. You can display data of anadditional third channel shown as flaogs at the position of the corresponding pair of data.You can rotate the display of coordinatesystem or switch betwenn clock-wise and counter clockwise direction.

Polar Plot Chart

Data List

Status Lamp

Chart Recorder

Analog Meter

Digital Meter

Bar Graph

VITool Layout Pages

Multiple Display Options

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DASYLab Specials

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Sequence Control

Getting Started / QuickStart

To manage large projects with several discrete test steps, use thepowerful DASYLab Test Sequencer.This new tool is included with the fulland pro versions of DASYLab.You can easily configure multiple worksheets and specify how to startand finish each test step. Worksheets can communicate with each other,sharing files and variables, and can branch execution based on events orvalues in a test step.

The window shows a tree view of the defined controlsequence. The tree contains the sequence displayed asthe root of the tree. You can add any worksheet to it.You can define mutiple event driven actions (global),that will control the run of the different worksheets. A debugger window allows you to monitor theprogress of the sequence.

The Getting Started Guide will show you the functions and the interaction of thedifferent modules of DASYLab using interactive worksheets.The QuickStart chaptercontains a variety of step-by-step guides to create worksheets of differentcomplexity that visually demonstrate how to use common modules.It helps you to create your own worsheets and supports you as you use DASYLab,allowing you to take full advantage of the power of that software. The GettingStarted Guide is a supplement to the Online Help and the manuals shipped with thesoftware. The included worksheets generally do not require hardware. Exceptionsare marked.When you open a Getting Start Worksheets from the Online Guide, it opens aspecial, limited “instance” of DASYLab, allowing you to work side-by-side with youroriginal DASYLab worksheet. You can distinguish this DASYLab instance by thetext of the window header: DASYLabGettingStarted. The Getting Started Tutorial uses an HTML structure, which makes it easy toupdate and expand the Tutorial via the Internet.

Project Documentation

No project is complete until you document it. In addition to adding a project descriptionand printing the worksheet, you can document your measurement projects by adding adescription for each module on the worksheet (up to 256 characters). Additionally, youcan create a permanently displayed description on the background of the worksheet simplyby dragging a frame with the mouse. User-selectable colors, fonts, and 3D properties makethe commentary stand out. Any text, up to a maximum of 256 characters, can be used todescribe the worksheet..Up to 256 frames can be placed anywhere on the worksheet.Saved documentation now includes the HTML file format, often used in the web to createstructured text files. It is a useful format to archive worksheets with all parameters andmodule settings.

Use the Global Variables / String Overview menu to display all available global variables andstrings. Use this overview to easily and quickly explore the places where variables or stringsare used in worksheet. The left side of the window shows a tree with all variables and stringsand its use. The right side of the window shows any additional information that may be availablefor the selected element. Variables or strings that might be written in multiple places are markedin red to highlight possible conflicts.Free Variables/Strings are shown separately, so you caneasily find available (unused) ones.

Global String/Variables Overview

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Complex control applications can easily be implemented using the ProgrammableSequence Generator. Curves and ramps of different types can be combined tocreate a custom waveform. DASYLab can automatically modify the waveformgeneration in response to acquired or calculated data, events, and user specifiedconditions. Use global strings to load existing sequence files to be processed bythe module. You can combine several parts of a control sequence easily for yourindividual needs. Additionally, the Sequence Generator provides control inputs tomodify curves and ramps based on acquired data.In contrast to the Sequence Generator, which simply links predefined curves andramps, the Reference Curve module generates Reference curves from any set ofdata acquired in test runs. Bundled with the Analysis Add-on Option.

The optional analysis Addon modules set provides powerful features for vibration and frequency analysis. The Octave-Analysismodule analyzes incoming signals with digital filters, optimized to a 40 KHz sampling rate. Use the Transfer Function module

and the Weighting module to freely weightspectrums or the Convolution module with presetfilter vectors. Coherence analysis, automaticaverage and weighting of transfer functions, as wellas automatic acceptance values provide you withconvenient handling for needed computation. TheUniversal Filter Module offers user defined digital FIRand IRR Filter. An useful filter wizard supports thecreation of FIR filters.Classification Methods are the basisof Life Cycle tests. The DASYLabclassification options are imple-mented in the Rainflow and the 2-

Channel Classification module as a part of the Analysis Add-on. They contain allimportant methods to analyze Time-Stress functions. In addition to the mostmodern method, the Rainflow classification, reflected by the module’s name,other parametric methods based on DIN 45667 are available. The 2-channel classification allows you to link two time-stress functions toanalyze load-bearing collectives. Up to 256 classes, settable hysteresis, conditions and the option to analyzeapparent residues offer a wide range of methods making this module a usefulinstrument for signal analysis.

The Driver Toolkit allows DASYLab users to develop custom hardware interfaces for plug-in boards and external deviceswhich are currently not supported by DASYLab standard drivers. It contains a detailed description of the interface (API)between DASYLab and the driver dll.

The C Extension Toolkit is used to develop new function modules, such as special-purpose algorithms or displays, to tailorDASYLab for specific applications. The resultant new modules are fully integrated into the intuitive graphical user interfaceof DASYLab.

Signal Analysis Add-on

Driver and ExtensionToolkits

Sequence Generator

User defined Function ButtonsAll screen views in DASYLab allow you to customize up to 8 buttons. You can assign allmost all available functions, programcommands or modules. The Buttons are colorized if there is a function assigned to it. Each view has unique button color andthe button can be assigned differently in each view, giving you 32 custom function buttons.

User defined HotkeysAssign any DASYLab function or command to any key or key combination. You can then use the defined “Hotkey” to activateany DASYlab function or command. Hotkeys are easy to configure.

User defined Keys/Buttons

Supported Hardware

DA S Y Lab and DA S Y T E C are tradem arks of N ational Instrum ents Ireland R esources Lim ited – Other product and com pany nam es lis ted are tradem arks or trade nam es of their respective com panies . © 2004 Copyright N ational Instrum ents Ireland R esources Lim ited – with reservation of errors and subject for alterations

DA S Y Lab hardware drivers undergo continuousdevelopem ent with frequent new additions . A n actual lis t showing current driver support you will findin the W eb; contact your local dis tributor if your dataacquis ition hardware is not shown.

Interfaces DASYLab Versions

Hardware Requirements

T his powerful extens ion of DA S Y Lab is able to com m u-

nicate with and control rem ote copies of DA S Y Lab N et

on any network that uses the T CP/IP Protocol. DA S Y Lab

is able to:E xchange data at rates up to 100 000 sam ples persecond.Display m essages to other running DA S Y Labprogram s.R em otely s tart, s top and load experim ents , includings im ultaneous start of several DA S Y Lab N et system s.Password protect client server/access .A utom atic tim e zone correction on server and client,if different.

DASYLab Net

In addition to hardware drivers used to access thedifferent m anufacturer’s hardware devices , DA S Y Laboffers several s tandard com m unications-based interfacessuch as R S 232, G PIB , T PC/IP, DDE , CA N and E thnerN et.

IVI (Version 1.0)Data acquis ition and controlwith IV I com patible devices .S upport of the classes Oscilloscope, Digital M ultim eterand Frequency G enerator.

OPC 2.0W rite and R ead access to tags inOPC S erver with the specification 2.0.

MODBUST he M ODB U S ® protocol pro-vides a client/server com m unication between devicesconnected on different types of buses or networks . T heindustry's serial de facto standard enables thecom m unication of m illions of autom ation devices .

DASY L ab®

Data Acquisition System Laboratory

www.dasylab.net

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Distributor:

BS2 MULTIDATA GmbHLochhamer Schlag 17

D-82166 GräfelfingT +49-89-85859-0 u -99

www.bs-multidata.de