Hf !  n=       D$pv   #! x!v"""## $B% & !'!" ("#!(#$"($$#)(-(C)-2( *27-.,7<2 3<A74AA<8p8dndXAnxdTExndFxjH JLM"N 3T(V[WpY Z ! [!* ]*+! ^++*`444<@a>>>5jHHHsRRRx\\\y{] \~#<%AnyWave Help ManagerUse mouse or press Ctrl +  key to select: @1,"What You Can Do with the Envelope Compare Tool" @3,"Help on Envelope Compare Menu Options and Controls" @10,"Index" @40,"How to ..." @0:0,"Other AnyWave Tools and Glossaries" @7,"Tips" @910:0,"How to Use Help" .What You Can Do with the Envelope Compare ToolThe Envelope Compare tool allows you to @15:0,"test waveforms" by reading them and comparing them with an envelope. For more information, select @5,"Envelope Comparison" or @5,"Pass/Fail Testing". Note: An @8:0,"envelope" consists of an upper limit and a lower limit waveform. To get information about the screen parts of the Envelope Compare tool, choose @2,"Overview of Screen Parts". Overview of Screen Parts Ŀ @100,"File" @200,"Envelope" @30:0,"Instrument" @400,"Options" @60:0,"Tools" @905:0,"Help" Ĵ @901,"Start" @902,"Stop" Ĵ @905,"Acquisition" @908,"Test Result" @905,"Information" Ĵ Ĵ @906,"Logging Info" Ĵ @910,"Graph" @907,"Test Info" Ĵ @920,"Waveform" @920,"Dimensions" Ĵ @915,"Description" ........................................ During @5,"Envelope Comparison" the menu bar on the top is replaced by the @6,"Execution Status". 2Help on Envelope Compare Menu Options and ControlsMENU OPTIONS: @100,"File" @200,"Envelope" @30:0,"Instrument" @400,"Options" @60:0,"Tools" @110,"New" @220,"Send" @31:0,"Control" @410,"Acquisition" @61:0,"Instrument Screen" @120,"Open" @35:0,"Connect" @420,"Logging" @62:0,"Waveform" @140,"Save as" @430,"Test by instr." @63:0,"Meter Logging" @150,"Print" @440,"View" @64:0,"Instrument Setup" @40:0,"Print setup" @450,"Alarm" @65:0,"Envelope Compare" @41:0,"DOS shell" @46:0,"Colors" @66:0,"Sequence" @42:0,"Exit" @48:0,"Grid" @50:0,"Memory usage" @905:0,"Help" @52:0,"Tools used" @906:0,"Contents" @907:0,"About" CONTROL BUTTONS/BOXES: @901,"Start" @902,"Stop" @915,"Description" Envelope ComparisonMBefore starting Envelope Comparison (Pass/Fail Testing), make the following selections:  @410,"Acquisition Options".  @420,"Logging Options".  @430,"Test By Instrument" on or off. During pass/fail testing the @6,"Execution Status" field replaces the menu bar and shows the actual status. The @908,"Test Result" status box shows the latest pass/fail test result. The Start and Stop buttons are used to start, stop, halt, and resume pass/fail testing. Execution notes:  The X and Y Scale of the envelope must be equal to the X and Y Scale of the waveforms to be read. If not, envelope comparison is not started. Instead, a message pops up, requesting you to update the scale dimensions concerned to match with each other.  If the number of waveform points exceeds the number of envelope points, the waveform points that are outside the envelope span do not participate in the test. So, they don't cause a fail indication. Similarly, when there are more envelope points than waveform points, the envelope compare test is limited to the waveform span. Execution StatusThe following execution statusses can be displayed:  Testing... Is shown when the envelope compare process is acquiring a waveform and comparing the acquired waveform with the envelope.  Waiting for Timer... Is shown when the envelope compare process is periodically repeated and halted until the next test cycle is started. Note: A time and date pop-up box is displayed when the envelope compare process is waiting to start at the specified scheduler's start date and time. The start date and time, plus the current date and time are displayed. Activate the button to cancel waiting and to specify another start date and time. TipstMake a selection between: . @8,"Quick Function Reference Tips" . @285:0,"Tips on Using Program Controls" Quick Function Reference Tips To use a new or another envelope for pass/fail testing, select the menu option. To define what to acquire and compare, select the menu option. To define what to log and save, select the menu option. To select between testing by computer or by PM338X(A) or PM339x(A) CombiScope instrument, select the menu option. To switch the sound alarm on or off, select the menu option. IndexThe Help Index provides an alphabetical list of all topics. To quickly move to a portion of the index, select one of the following letters: @11,"A" @12,"B" @13,"C" @14,"D" @15,"E" @16,"F" @17,"G" @18,"H" @19,"I" @20,"J" @21,"K" @22,"L" @23,"M" @24,"N" @25,"O" @26,"P" @27,"Q" @28,"R" @29,"S" @30,"T" @31,"U" @32,"V" @33,"W" @34,"X" @35,"Y" @36,"Z" To page forward and backward through the index, activate the and buttons. - A -@901:0,"Abbreviations" @907:0,"About AnyWave" @905,"Acquisition Information" @410,"Acquisition Options" @450,"Alarm On/Off" @122:0,"ASCII CSV Input" @124:0,"ASCII CSV Output" - B - No keywords available. - C -@45,"Changing the Graph Display" @46:0,"Color Options" @800:0,"Connecting an Instrument" @952:0,"Connecting a Modem" @906:0,"Contents of AnyWave" @31:0,"Control Instrument" @50,"Creating an Envelope" @122:0,"CSV ASCII Input" @124:0,"CSV ASCII Output" - D -q@2:0,"Data Types" @915,"Description Box" @932:0,"Direct Connection Instrument to PC" @41:0,"DOS Shell" - E -@105:0,"EIA-232-D" @0:5,"Envelope Compare" @5,"Envelope Comparison (Explanation)" @65,"Envelope Comparison (Getting Started)" @200,"Envelope Menu" @8:0,"Envelopes" @6,"Execution Status" @42:0,"Exit" - F -C@100,"File Menu" @19:0,"Files - Tasks - Tools Cross-Reference" - G -l@0:0,"Glossaries" @940:0,"GPIB Connection Notes" @106:0,"GPIB" @910,"Graph" @48:0,"Grid Options" - H -@905:0,"Help Menu" @3,"Help on Envelope Compare Menu Options and Controls" @913:0,"Help Screen Controls" @910:0,"How to Use Help" - I -Z@123:0,"Info Header" @30:0,"Instrument Menu" @920:0,"Instruments that are Supported" - J - No keywords available. - K - No keywords available. - L -L@950:0,"Local Modem" @906,"Logging Information" @420,"Logging Options" - M -@202:0,"Maximum Number of Open Waveforms" @203:0,"Maximum Size of Each Waveform" @50:0,"Memory Usage" @954:0,"Modem Connection to Instrument or PC" @953:0,"Modem Connection Tips" @107:0,"Modem Interface" @60,"Modifying an Envelope" - N - No keywords available. - O -T@400,"Options Menu" @0:0,"Other AnyWave Tools" @2,"Overview of Screen Parts" - P -@5,"Pass/Fail Testing (Explanation)" @65,"Pass/Fail Testing (Getting Started)" @200:0,"PC Memory Usage Parameters" @205:0,"Printer Setup" @55,"Printing an Envelope Compare Screen" - Q -$@8,"Quick Function Reference Tips" - R -,@950:0,"Remote Modem" @105:0,"RS-232-C" - S -@112:0,"Selecting an Arb Memory" @102:0,"Selecting an Instrument" @811:0,"Selecting the Graphics Printer" @220,"Send Envelope" @0:6,"Sequence Tool" @5:0,"Sequences" @930:0,"Serial Connection Notes" @105:0,"Serial Interface" @901,"Start Button" @902,"Stop Button" - T -@19:0,"Tasks - Tools - Files Cross-Reference" @900:0,"Terms" @430,"Test by Instrument Options" @907,"Test Information" @908,"Test Result Status" @15:0,"Testing Waveforms" @953:0,"Tips on Connecting a Modem" @285:0,"Tips on Using Program Controls" @7,"Tips (Functional)" @19:0,"Tools - Files - Tasks Cross-Reference" @60:0,"Tools Menu" @52:0,"Tools Used" @16:0,"Transferring Sequences of Waveforms" - U -@820:0,"Using the Keyboard Controls" @821:0,"Using the Mouse Controls" @910:0,"Using the Help Function" @911:0,"Using the Help Scroll Bar" @915:0,"Using the Keyboard for Help" @950:0,"Using a Modem" @914:0,"Using the Mouse for Help" - V -@440,"View On/Off" - W -@920,"Waveform Dimensions" @65,"Waveform Testing" @912:0,"What a Help Page Contains" @1:0,"What You Can Do with the AnyWave Software" @1,"What You Can Do with the Envelope Compare Tool" - X - No keywords available. - Y - No keywords available. - Z - No keywords available. How to ...}@800:0,"Connect an Instrument" @45,"Change the Graph Display" @50,"Create an Envelope" @65,"Do Envelope Comparison" @60,"Modify an Envelope" @65,"Pass/Fail Test" @55,"Print an Envelope Compare Screen" @811:0,"Select the Graphics Printer" @65,"Test Waveforms" @910:0,"Use the Help Function" @820:0,"Use the Keyboard Controls" @821:0,"Use the Mouse Controls" Changing the Graph DisplayChange the colors of the graph as follows: 1. Select the menu. 2. Select the option. 3. If you wish, select different colors. 4. Activate the button to make the changes active. Change the grid of the graph as follows: 1. Select the menu. 2. Select the option. 3. If you wish, select different grid settings. 4. Activate the button to make the changes active. Creating an Envelope 1. Select the menu. 2. Select the option. Select waveform source: 3. Select one of the waveform sources from the list box. Note: Set CombiScope instrument in digital mode (DSO). Read waveform: 4. Activate the button to read the waveform. If you wish, type a and <Description> for the envelope that will be created. Create an envelope (upper + lower limit) from the waveform: 5. Select the <Waveform> menu. 6. Select the <Modify...> option. Note: Next to the modify graph, the survey graph displays the complete waveform. 7. Select the <Edit> menu. 8. Select the <Change to envelope...> option. Set voltage shift value: 9. Use default upper and lower limit voltage shift value in the <Up-shift (+V)> and <Down-shift (+V)> boxes. Note: About 10% of the maximum waveform amplitude is taken as default voltage shift value. Set time shift value: 10. Use the default left and right time shift value in the <Left-shift (+s)> and <Right-shift (+s)> boxes. Note: About 25% of the X-scale value is taken as default time shift value. Generate envelope: 11. Activate the <OK> button. Note: The buttons Upper and Lower are added at the bottom right of the screen. ͻ Tip: If the envelope is not satisfactory and you want to create a different envelope, select the <Undo> option of the <Edit> menu and continue with step 7. ͼ An envelope has been created from the reference waveform with default upper and lower limit (use for pass/fail testing). #�Printing an Envelope Compare ScreenCreate a meter readings screen as follows: 1. Execute @50,"Creating an Envelope" 2. Execute @65,"Envelope Comparison" Print the Envelope Compare screen: 3. Select the <File> menu. 4. Select the <Print...> option. 5. Activate the <Yes> button to start printing. �Modifying an EnvelopepSelect drawing option: 1. Select the <Options> menu. 2. Select <Line draw> or <Freehand draw>. Note: By selecting a drawing option, the corresponding button is automatically made active. 3. Activate the <Upper> or <Lower> limit button to modify the upper or lower waveform of the envelope. Modify upper/lower limit: 4. Modify the limit by moving the cross-hair cursor:  If the drawing method 'Line draw' was chosen, a straight line is drawn between two cursor points.  If the drawing method 'Freehand draw' was chosen, the line is continuously drawn according to the movement of the cursor on the graph. Tip: Select 'Edit - Undo' to undo the last modification. Keep the envelope under a different name: 5. Select the <Waveform> menu. 6. Select the <Update as...> option and type a different name. �Envelope ComparisonCompare the envelope with waveforms that are read from an oscilloscope over a period of time. This feature provides a way of automatic pass/fail testing. Select envelope compare: 1. Select the previously created envelope via the Waveform list box. 2. Select the <Tools> menu. 3. Select the <Envelope Compare...> option. Open envelope: 4. Select the <File> menu. 5. Select the <Open envelope...> option, select the name of the envelope file, and select the envelope that will be used for envelope comparison. Set acquisition options: 6. Select the <Options> menu. 7. Select the <Acquisition...> option. 8. Select the acquisition channel from the <Acq. Channel> ring control box to read the waveform from. 9. Select 'Continuous' from the <Acq. Mode> ring control box. 10. Enter, for example, 4.0 (seconds) into the <Timeout> box. The timeout value defines the maximum response time for an instrument acquisition. 11. Enter 5.0 (seconds) into the <Time Interval> box, so that every 5 seconds a waveform is read. 12. Activate the <OK> button to enter these selections. Set up logging: 13. Select the <Options> menu. 14. Select the <Logging...> option. 15. Select 'ON FAIL' from the <Save Waveform> ring control box. 16. Enter a file name into the <Filename (.cur)> box, e.g., FAILC. Failing waveforms are stored on disk under this file name followed by an index, e.g., FAILC001.CUR, FAILC002.CUR, etc. The index can be specified via the <File Count Start> box. 17. Activate the <OK> button to enter these selections. Start envelope comparison: 18. Activate the <Start> button to start envelope comparison. The outcome of each envelope comparison is indicated in the status field on the screen as PASS or FAIL. Failing waveforms are stored under the file name as indicated in the Save Name (.cur) status box. Stop envelope comparison: 19. Activate the <Stop> button to stop envelope comparison. Tip: For PM338xA-PM339xA CombiScope instruments, the AnyWave software allows you to execute envelope comparison (pass/fail testing) by the instrument itself. Select the <Options - Test by Instrument> menu option. �<File> MenuAllows you to open envelope files and save waveforms to file, make a hard copy of an Envelope Compare screen, and exit the AnyWave software. - @110,"New" Creates a blank graph to make a new start. - @120,"Open..." Opens a file containing envelope(s). - @140,"Save as..." Saves the last read waveform in the graph on disk under a new file name. - @150,"Print..." Prints the Envelope Compare screen to the hard copy device selected. - @40:0,"Print setup" Selects a hard copy device for printouts. - @41:0,"DOS shell..." Leaves the AnyWave software via the DOS shell. - @42:0,"Exit" Exits the AnyWave software. ͻ Tip: To get the File menu options: . Point at File menu and click left mouse button. . Hold down Alt key and press F key. ͼ �<File - New> Menu Option�Removes the latest waveform and envelope from the graph, after a request to save the waveform pops up. The current file name becomes "None". The Description box, test result status box, and the waveform information box are also cleared. �<File - Open...> Menu OptionAllows you to open an envelope file in one of the following data formats: - *.CUR Internal waveform (curve) file. - *.CSV @122:0,"ASCII Input" text file. Activate the <List of files> button to open a CUR file by specifying a file name. Activate the <Records from database> button to open a CUR file by specifying keywords. After you select a file, the envelope in the file is displayed in the graph. When an envelope exists, a request to save it pops up first. �<File - Save as...> Menu OptioniAllows you to save the latest waveform from the graph to file with another name in one of the following data formats: - *.CUR Internal waveform (curve) file. - *.CSV @124:0,"ASCII Output" text file. Activate the <List of files> button to save to CSV or CUR file by specifying a file name. Activate the <Records from database> button to save to CUR file by specifying keywords. The graph remains unaffected. Tip: When waveform curves are not automatically saved on disk during Envelope Comparison (SetUp - Logging on), this option can be used to save the tested waveform to file. �<File - Print...> Menu OptionPrints the Envelope Compare screen to the hard copy device. The @208:0,"Start Print" dialog box pops up, allowing you to start or cancel printing. Note: You can choose your hard copy device by selecting the <File - Print setup...> menu option. The menu bar and buttons are not printed. If the selected output device is a print file (*.PRT) or HPGL plot file (*.HGL), the @217:0,"Save As" dialog box pops up, allowing you to specify a print or HPGL plot file name. �<Envelope> Menu�Allows you to send an envelope to the connected instrument. - @220,"Send..." Sends the envelope to the instrument. Applicable to:  PM338x(A)-PM339x(A) CombiScope instruments. �<Envelope - Send...> Menu Option�The @860,"Send Envelope" dialog box pops up, allowing you to specify the memory location and channel number into which the envelope is stored. The stored envelope is used for perform pass/fail testing. �<Options> MenucContains options to define the execution parameters for pass/fail testing (envelope comparison). - @410,"Acquisition..." Defines the parameters for the acquisition of waveforms. - @420,"Logging..." Defines the parameters for the logging of test results. - @430,"Test by instrument" Selects between testing by computer or by instrument. - @440,"View" Allows you to view the envelope and acquired waveforms. - @450,"Alarm..." Switches the sound alarm on or off. - @46:0,"Colors..." Changes the colors of the graph and waveform. - @48:0,"Grid..." Changes the grid settings of the graph. - @50:0,"Memory usage..." Changes the use of memory space, such as: . Maximum number of waveforms . Maximum waveform length - @52:0,"Tools used..." Allows you to define which tools to use in the <Tools> menu. ͻ Tip: To get the Options menu options: . Point at Options menu and click left mouse button. . Hold down Alt key and press O key. ͼ &�<Options - Acquisition...> Menu OptionDefines the acquisition of waveforms. The @820,"Acquisition Setup" dialog box pops up, allowing you to specify the following:  The input channel of the acquiring instrument.  The timeout in seconds of the acquisition response time.  The acquisition mode, e.g., single or continuous reading and comparison.  The time between the reading and comparison of two successive waveforms.  The date and time for envelope comparison to start/stop. "�<Options - Logging...> Menu Option Saves waveforms that have been tested. The @830,"Logging Setup" dialog box pops up, allowing you to specify the following:  The event that causes a waveform to become saved.  The name, index, and MS-DOS path for the files to where the waveforms are stored. -�<Options - Test by instrument...> Menu OptionAllows the Envelope Compare test to be performed by the acquiring instrument. Only the results of the test are shown by the AnyWave software. Applicable to:  PM338x(A)-PM339x(A) CombiScope instruments The @840,"Test By Instrument" dialog box pops up, allowing you to select between pass/fail testing by computer or by instrument. Note: During envelope comparison by instrument, oscilloscope settings may not be changed via the instruments front panel. �<Options - View> Menu Option(Switches between viewing the waveform and envelope in the graph or not. The dimensions of the view area are automatically selected and determined by the envelope dimensions. When pass/fail testing is executed by the instrument, only the waveforms that are saved are shown in the graph. �<Options - Alarm...> Menu OptionSelects the condition that makes the AnyWave software generate an @850,"Alarm" (beeping sound). The possible conditions are:  No beeping at all.  When envelope comparison passes correctly.  When envelope comparison fails.  After each envelope comparison. �Select File Dialog BoxAllows you to select another envelope file (*.cur or *.csv). - Select the drive from the <Drives> list box. - Select the file name or subdirectory from the <Files> list box or type a file name into the <File Name> box. Note: The number of files displayed is @215:0,"limited" to 200. - Activate the <Preview> button to preview possible envelopes in the selected file. - Activate the <OK> button to open the selected file. - Activate the <Cancel> button to cancel file selection. �Open Dialog Boxr�Allows you to open a CUR file by specifying keywords. Select @882:0,"Open" for a description on how to do that. �Save As Dialog BoxAllows you to save waveforms to a CUR or CSV file by specifying a file name. Select @281:0,"Save As" for a description on how to do that. FILE FORMAT: DESCRIPTION: Curve (*.cur) Waveform (curve) file created by the AnyWave software. ASCII (*.csv) @124:0,"ASCII Output" text file created by spreadsheet programs or editors. �Save As Dialog Box�Allows you to save waveforms to a CUR file by specifying keywords. Select @883:0,"Save As" for a description on how to do that. �Acquisition Setup Dialog Box] Allows you to specify the following settings: Acq. Channel Selects the input channel of the instrument from which the waveform is acquired. ͻ Tip: Point at selection box and click the left mouse button to get a list of predefined values. ͼ Acq. Mode Selects the way to execute envelope comparison, i.e.: - Single Single waveform reading and comparison. - Continuous Continuous waveform readings and comparisons. - Stop on FAIL Stop waveform readings and comparisons if comparison result is FAIL. Time Interval Specifies the time interval in seconds between the acquisition of two successive waveforms when <Acq. Mode> is 'Continuous'. Timeout Specifies the instrument's response time in seconds that the acquisition of a waveform might take. It may occur that no waveform is received from the acquiring instrument, because it is not properly triggered, for example. The Time Interval specifies the maximum period that is waited for the acquisition result from the instrument. When this time expires and no result is obtained, the Envelope Compare process is interrupted. Once interrupted, it resumes according to the settings specified. Notice that a time out does not cause the test to report a fail, but a time out error (ERROR). Timer Activate the <Timer> button to start and stop pass/fail testing automatically at a specified date and time. The <Start> button must also be activated. After the stop date and time have expired, the timer is disabled. The Timer can only become enabled when: - Start Date and Time is before Stop Date/Time. - Stop Date and Time is after actual system Date/Time. Date/Time specification: . <Start Date> month/day/year <Stop Date> month/day/year Example: 10/15/93 = october 15, 1993 Note: The Date format depends on the COUNTRY.SYS definition in CONFIG.SYS. . <Start Time> hours/minutes/seconds <Stop Time> hours/minutes/seconds Example: 15:19:41 = 15 hours + 19 minutes + 41 seconds - Activate the <OK> button to validate the selected acquisition parameters. - Activate the <Cancel> button to cancel selection. �Logging Setup Dialog BoxAllows you to specify the following settings: Save Waveform Specifies one of the following events that cause a waveform to become saved to file.  OFF No saving of waveforms.  ON PASS Waveforms that pass the test.  ON FAIL Waveforms that fail the test.  ALL All waveforms. ͻ Tip: Point at selection box and click the left mouse button to get a list of predefined values. ͼ Filename (.cur) Specifies the waveform file name. Every waveform is saved in a separate file. To distinguish between the files, every time a waveform is saved, an index number is added to the specified file name. This means that the final curve file name consists of a user specified part and an index number that is added by the AnyWave software. The extension is CUR. The index numbers are determined from the existing CUR file whose name equals the specified name. The first index number becomes the highest available existing index number increased by 1. When such index is not available, the first index number starts with 1. Example: Assume that failing waveforms are saved in files whose names are specified as FAIL. The first failed waveform is stored in the file FAIL0001.CUR; the next failed one in the file FAIL0002.CUR, etc. The indexing mechanism continues until all 8 positions of a file name are used. For example, until FAIL9999.CUR. A next failing waveform causes an error to be generated and the pass/fail testing to be stopped. File Count Start Specifies the first index of the waveform file name. File Path Specifies the MS-DOS path of the waveform file. Activate the <Browse> button select a path. - Activate the <OK> button to validate the selected logging parameters. - Activate the <Cancel> button to cancel selection. Note: The <Free Disk Space:> line at the top shows the amount of free Kilo or Mega bytes on the disk or RAM drive, onto where the files are stored. Examples: 512 point waveform takes 1K bytes. 8096 point waveform takes 16K bytes. �Test By Instrument Dialog Box Allows you to specify the following settings: Test by Instrument Specifies one of the following events that causes a waveform to be read and saved to file.  OFF No saving of waveforms.  ON PASS Waveforms that pass the test.  ON FAIL Waveforms that fail the test.  ALL All waveforms. ͻ Tip: Point at selection box and click the left mouse button to get a list of predefined values. ͼ Memory Specifies the number of the memory register. Note: If envelope comparison is done by the acquiring instrument, the envelope used for envelope comparison must first be sent to the instrument using the <Envelope - Send...> menu option. Channel Specifies the input channel to read the waveforms from. - Activate the <OK> button to validate the selected test by instrument parameters. - Activate the <Cancel> button to cancel selection. �Alarm Dialog BoxAllows you to specify the the condition that makes the AnyWave software generate a beeping sound. Sound Alarm Specifies the alarm condition:  OFF No beeping at all.  ON PASS When envelope comparison passes correctly.  ON FAIL When envelope comparison fails.  ON ALL After each envelope comparison. - Activate the <OK> button to validate the selected alarm condition. - Activate the <Cancel> button to cancel selection. �Send Envelope Dialog BoxAllows you to select the following: - Enter a memory register into the <Memory> box. - Select a channel from the <Channel> ring control box. Example: Enter 2 into the <Memory> box and select "Channel 3" from the <Channel> field to select memory register 2.3. - Activate the <Send> button to send the selected envelope to the memory register specified. - Activate the <Cancel> button to cancel sending. �Start ButtonStarts or restarts pass/fail testing (envelope comparison). Activate the Stop button to halt pass/fail testing. Execution Notes:  When the timer is not enabled (Options - Acquisition - Timer Off), envelope comparison is started immediately.  When the timer is enabled (Options - Acquisition - Timer On), a start command is still needed to initiate envelope comparison. The test starts when the specified start date and time expires. Application tip: When pass/fail testing is executed by a PM338x(A)-PM339x(A) CombiScope instrument ('Test by Instrument' valid), make sure that before restarting envelope comparison, instrument settings are not changed via the front panel, such as:  Main Time base (X Scale) setting.  Attenuation (Y Scale) setting.  Pass/Fail testing mode (run).  Pass/Fail testing ACTION.  Pass/Fail testing TEST ENVELOPE remains stored in the memory register as specified via <Envelope - Send...>. �Stop Button�Stops or halts pass/fail testing (envelope comparison). All pending operations and acquisitions are stopped. Activate the Start button to resume pass/fail testing. �Acquisition Information BoxShows the selections made via <Options - Acquisition>:  Acquisition Channel: The input source of the waveforms.  Acquisition Mode : The way to execute pass/fail testing: - Single Execute only once. - Continuous Execute continuously. - Stop on FAIL Stop testing if a fail waveform occurs.  Time Interval (s) : The time between two successive tests in seconds.  Timer : ON or OFF  Stop Date : month-day-year Note: The Date format depends on the COUNTRY.SYS definition in CONFIG.SYS.  Stop Time : hours:minutes:seconds �Logging Information BoxShows the selections made via <Options - Logging>:  Save Waveform : Indicates which waveforms must be saved during pass/fail testing: - OFF No waveforms at all. - ON PASS Waveforms that pass the test. - ON FAIL Waveforms that fail the test. - ALL All waveforms.  Save Name (.cur) : The name (including index) of the file into which the current waveform is saved. �Test Information Boxc�Shows the selections made via <Options - Test by instrument>:  Test by Instrument : ON or OFF �Test Result Status Box)Shows one of the following test results: PASS: --> Vlow_limit Vwaveform Vup_limit Is generated whenever a test is completed with a positive result (pass). A test is considered positive when the Y value of all waveform X points is: - Less or equal than the Y value of the corresponding X point of the envelope upper limit. - Greater or equal than the Y value of the corresponding X point of the lower limit. FAIL: --> Vwaveform < Vlow_limit or Vwaveform > Vup_limit Is generated whenever a test is completed with a negative result (fail). A test is considered negative when the Y value of one or more waveform X points is: - Greater than the Y value of the corresponding X point of the envelope upper limit. - Less than the Y value of the corresponding X point of the envelope lower limit. ERROR: Is generated when the test could not be executed due to some device error. For example, a time out occurred. NOT TRIGGERED: Is generated when the test could not be executed, because the acquisition input channel is not triggered. Blank (spaces) The test result indication is blanked when no result is available, for instance, when envelope comparison: . was not started before. . is started, but no result is yet available. �Graph�The graph shows:  The last acquired waveform from the oscilloscope (during envelope comparison).  The envelope to which the waveform is compared. �Description Status Box(�Shows the description of the envelope. �Waveform Information BoxShows the dimensions of the acquired waveform: . Y Scale : Vertical scale (units per division). . Y At 50%: Vertical position from 50% axis (middle of graph) is zero reference (= vertical offset). . X Scale : Horizontal scale (s per division). Note: ms/s/ns = milli/micro/nano seconds. . X At 0% : Horizontal position from 0% axis (left side of graph) is zero reference (= horizontal delay). . X Size : Shown [Total] number of waveform samples. . Time : The moment (hours:minutes:seconds) that the waveform was acquired. . Date : The date (month-day-year) that the waveform was acquired. Note: The Date format depends on the COUNTRY.SYS definition in CONFIG.SYS.