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MultiChannelScope

1. As you can see the surface s major part looks like of the real oscilloscope so most control elements especially on the upper right quarter of the screen probably appear familiar to you Inspite of this fact some things need to be explained Handbuch All settings you do by clicking to a certain control element are sent to the oscilloscope immediately If you change any control element the change is made nearly in the same moment on the oscilloscope If the connection to your osci is all right and no changes are made on the device control panel what you see is what you set Nevertheless every time a new graph is received from the oscilloscope all the settings are requested to make sure your application control elements display the true values MultiChannelScope LIGHT lew l JOANNEUM On the upper left part of the screen you see a graph window where requested graphs are displayed Holding the left mouse button and moving the mouse over the screen picture can edit parts of them If a part of a graph is selected a zoom view of this part is displayed in the box on the bottom right also see Digital Fourier Transform As soon as a graph is transferred from the oscilloscope to the computer the most important values related to this graph are viewed in the box down left As soon as a graph is transferred from the oscilloscope to the computer the most important values related to this graph are viewed in the box down left
2. NOTE For selecting areas arbitrarily or using the whole graph 2500 data points for the frequency analysis the 2 n mode has to be disabled by pressing F12 PAL TI i MultiChannelScope LIGHT ee Step 3 For starting the data analysis computing the power spectrum choose Fourier Transform from popup menu see pop up menu choose Digital Fourier Transform from the Fourier menu or click to the Fourier Transform button in the middle right part of the screen Step 4 A new window viewing the frequency spectrum will open The horizontal axis of the picture gives information about the frequencies shown If you move the mouse pointer to a certain frequency peak the text below the picture informs which frequency it corresponds to Zooming is possible too The signal can be saved as ASCII file the displayed picture can be saved as image To close the Fourier analysis window click OK Pere spas trum nf graph D tums HI MAME Canal TE Jar m 24 dd n 150 57 n 154 25 ni 173 92 we FALSE T FAUST n n i n I 1 E E l DHE E LH TFEH H Show ful sper irim Pesk fequeng 7 EHZ Cuor 968 37 Hil ii Pesk smpitude SSR nW eee Sava ir ce lia Te hjek oued pat 455 rale chad dstaporida Salechon riai ak 1510 ard cir at 2 5 mr Handbuch 8 MultiChannelScope LIGHT 4 Troubleshooting Problem The system seems to stop when trying to start MultiChan
3. Graph specific values that can still be changed if the graph has been added to the list box yet are Visible not visible Graph colour Graph draw style Ground level User comment white textbox on bottom left The options single graph view and multi graph view willow to switch between visualisation of only one signal or all transferd or loaded signals See the next chapter to get information about certain program functions Handbuch MultiChannelScope LIGHT na 3 Program functions Search new device If MultiChannelScope could not detect the connected oscilloscope at start up or if any hardware changes were made while executing the program e g the oscilloscope was unplugged and another one was connected to the computer The software will try to find the device by checking all com interfaces Search new device is found in the program s menu Device and equals to the Interface check at start up Transfer graphs This function is enabled only if a device has been found There is a Transfer graphs button below the control elements part in the right middle of the screen Further the function can be selected from the main form s Device menu or the popup menu see popup menu As soon as it is chosen a status window will appear on the screen showing the actual transfer task and the total status It is generally recommended to avoid transfer abortion once it has begun At the end o
4. HT na Graph identification At the end of a graph transfer the new graph s are added to the main form s graph list box The expression between the brackets should help to quickly identify a certain graph when searching the list box for it Default value after transfer is Source NO NAME To change the Comment property of a certain graph select it from the graph list box and type the new text into the white box on the main form s very bottom left and press Enter Return In the screen picture the graphs can also be distinguished from each other by changing the ground level Up Down Button below the graph list box choosing another draw style Style list box Full Dash Dot Dash Dot Choosing another graph colour Click to colour box above Style list box Popup menu Move the mouse pointer to the main form s screen picture and press the right mouse button A small menu so called popup menu will appear It offers the possibility of compact selection of some often used functions Transfer new graph Fourier Transform Copy to clipboard Save picture as Save graph as ASCIl Set background colour zs Set scale colour Handbuch 6 MultiChannelScope LIGHT JOANNEUM Digital Fourier Transform The digital Fourier transform is a fast way to get information about the frequencies of the signals a graph consists of by analysing the amplitu
5. MultiChannelScope LIGHT JOANNEUM FAHRZEUGTECHNIKS AUTOMOTIVE ENGINEERING SCHIENENFARRZEUGTECHNIK MultiChannelScope LIGHT VERSION Oscilloscope Control Panel For Tektronix TDS 200 series Users Manual Manual JOANNEUM MultiChannelScope LIGHT cme Contents Welcome to MuliChannelScope 1 1 To get started 1 2 The main window 2 3 Program functions 4 Search new device Load Save graphs Pictures Save Copy to Clipboard Graph identification 6 Popup menu 6 Digital Founer Transform l 4 Transfer graphs 4 5 5 4 Troubleshooting 9 Manual MultiChannelScope LIGHT na MultiChannelScope LIGHT is a reliable software product which provides data transfer from and to oscilloscopes of the Tektronix TDS 200 product family and further serves as measurement data processing tool It is possible to view transferred graphs displayed on the oscilloscope including their data and measurements and to compare them to each other Select areas or whole graphs can be analysed for frequencies The graph data their measurements and any images of arbitrary graph combinations can be saved for your archived The easiest way to become familiar with properties the program is simply to use it nevertheless a short introduction will be given in the following pages 1 Io get started To install MultiChannelScope execute the self extracting Installation file and follow instructions Once the program is installed you wi
6. des in time MultiChannelScope is able to do the Digital Fourier Transforms DFT of graphs or parts of them transferred from a Tektronix oscilloscope and show the frequency spectrum in a separate window and save this image or the frequency data Handbuch To view a graph s frequency spectrum this graph has to be selected in the graph list box see chapter 2 If you want to analyse the whole graph shown in the main form make sure that the menu option Allow any selection areas in Fourier menu is selected press F12 and proceed to step 3 Step1 Step 2 To select a certain area of the graph click to right or left border of the region you want to edit and keep left mouse button pressed while moving to the other border of that region As soon as you release the mouse button the edited area appears negated For fine adjustment in position move mouse to the middle of the inverted area and press left mouse button while moving the inverted area to left or right For fine border adjustment move the mouse pointer to the left or right border of the negated area and press left button while moving the border position to left or right Anyway a detailed view of the chosen area will be shown in the box down right It s possible to set the selection to the next lower 2 N number of datapoints This can be useful for some frequency data processing If you wish to do this reduction press F11 otherwise proceed to Step 3
7. er choosing the graph and clicking to Open the graph is added to the graph list box and can be handled the same as any graph that has just been transferred Pictures Save Copy to clipboard The currentley displayed screen picture can be saved as picture similar to a screenshot in Bitmap high quality or JPEG low file size format Choose Save picture as from the main form s View menu or from the popup menu see opup menu To provide the possibility of value identification and graph interpretation when regarding saved JPEG Bitmap images MultiChannelScope offers a Save preview option default value is switched on which can be set in the Presetting menu menu Program 4 Presettings The save preview enables you to see what the image will finally look like A comment text can be added and moved to any position in the image Moreover an automatically generated legend concerning the displayed graphs can be added In this legend draw style and colour demos of all displayed graphs are shown and next to the graph s Volts per division seconds per division it s groundline frequency and coupling mode are written Further a picture can be copied into Microsoft Window s Clipboard and pasted into any other application Winword Excel Photoshop etc Simply choose Copy from the main form s View menu or from the popup menu Handbuch MultiChannelScope LIG
8. f a graph transfer the status window vanishes automatically The new graph s are added to the main form s graph list box the expression between the brackets are the User defined comments Default is Source No Name See graph identification The new graph s appear on the screen picture If the option View single graph was selected before starting transfer only the last graph requested will be visible in case channel 1 and channel 2 are both transferred only graph 2 will be visible after transfer If the multi graph view option was chosen both the channel 1 and 2 graphs must be visible after transfer NOTE MultiChannelScope allows the simultaneous display of graphs of different Volt per division values and even Seconds per division values Handbuch ne MultiChannelScope LIGHT na Load Save graphs You have the possibility to save graph data including measurements and visualisation information and to load and view them again whenever you want To save a certain graph first choose the graph from the main form s graph list box Either choose Save graph as ASCII from the main form s Program menu or from the popup menu see popup menu Select a filename and click to Save Graphs are saved with a txt extension To load a saved graph must be a MultiChannelScope ASCII graph select Open MultiChannelScope ASCII graph from the main form s Program menu Aft
9. ll find the new program group MultiChannelScope LIGHT in your Microsoft Windows START Programs menu Before choosing the MultiChannelScope icon make sure that your Tektronix product is connected properly to your computer over the serial null modem interface cable RS 232 and that it is switched on Click to the program icon to launch MultiChannelScope A window with the pre settings is displayed You are asked to do various basic settings which can also be changed later on For Save preview see Save Copy to clipboard The fields Default path for images and Default path for data must be set to valid directories before resuming by clicking to OK TIP For a quick start use the button Default to re set standard settings Now the program searches the serial interface for a device by doing some transfer tests This process might take a few seconds The program s mainwindow should appear on the screen next Handbuch as MultiChannelScope LIGHT JOANNEUM 2 The main window Menu bar signal window Display Mode signal data 2 3 4 d 6 T Data request Hull gumhga F 5 HEHE Fora i Aare Hee cea Liter F A Sako ba iiri EAS Lair ne Se Ul AF Saeed FT Sn a es SUA pere Zommwindow Voltage gain Probe scaling AC DC GND Mode Graph displacement Activation of channel Graph displacement on timebase Interface status
10. nelScope or when try to transfer graphs Every time when MultiChannelScope start MultiChannelScope asks for pre settings During graph transfer an error message box appears and transfer doesn t continue It is not possible to save JPEGs An error message appears The copy function does not work It is impossible to paste a MultiChannelScope picture from the clipboard into another application The Fourier Transform button appears disabled A loaded graph does not appear properly on the screen During the process an error occurred Handbuch Possible Reasons 1 No device plugged 2 Transfer rate was changed 3 Error in plug connection cable 1 The application s path cannot be accessed and pre settings cannot be saved 2 file has been modified 1 Have you tried to abort transfer while a channel s graph was transferred 2 Error in connection 1 A DLL File was removed from the system directory 2 Using Windows version older then Win98 NT 1 A DLL File was removed from the system directory 2 Are you using older Windows versions than Win 98 I NT 4 1 Is the menu Force 24n point areas checked and have you edited a graph for Fourier Transform 2 Was any graph transferred yet Has any device been detected yet Was the file you tried to load an original MultiChannelScope ASCII graph FH JOANNEUM Possible Solutions Plug device Set the correct transfe
11. r rate Check cable and connections Remove application path s write protection or move application to another drive directory Prevent transfer abortion while a graph is transferred Check connections amp restart Re Install MultiChannelScope Get a newer Windows version Re Install MultiChannelScope Get a newer Windows version 1 Edit a part of the graph you want to analyse Disable Force 24n point areas menu 2 Choose Search new device or Transfer graphs respectively Make sure the graphs you load are graphs saved by MultiChannelScope and that they were not manipulated by an editor

MultiChannelScope

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