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Fluke PM3370B user manual ARM Trigger, 8THE CPL Protocol

Models: PM3370B

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6 - 8THE CPL PROTOCOL

ARM TRIGGER

AT

Purpose:

Will reset the timebase and rearm the triggering for a new timebase trigger. Issuing this command during a time base sweep will immediately stop the sweep, reset the timebase and rearm the triggering.

The Arm Trigger (AT) command performs the same function as pressing the frontpanel SINGLE-ARM’D button.

Command:

"AT"

CR

Response:

acknowledge

CR

Example:

100 PRINT #1,"AT" :’Send command

110 GOSUB 1000 :’Sync on acknowledge

Image 225

Fluke PM3370B user manual ARM Trigger, 8THE CPL Protocol

Contents

Qvwuxphqw Fluke Industrial B.V III Reference ManualReference Manual also contains Main Features Page Or model number Following parts should be included in the shipmentVII Contents Screen Controls Auto Setup HOW to USE More Advanced FunctionsGetting Started -1 3.1 FRONT-PANEL Layout More Advanced Trigger FunctionsContents Contents XII CH1 XiiiCH2 CH3XIV MODLine Main TB Gate CH1 Y-OUTDTB Gate Ieee 488.2 BUS OptionSafety Precautions Operators SafetyIntroduction Symbols Impaired Safety ProtectionMeasuring Earth Installation Instructions Safety InstructionsProtective earthing Mains voltage cord, mains voltage range and fusesRear View Memory BACK-UP Batteries Installation of batteriesFront Cover General informationIeee 488.2/IEC 625 BUS Interface Option Handle Adjustment and Operating Positions of the InstrumentRS-232-C Serial Interface Rack MountingVersions Getting Started FRONT-PANEL LayoutSwitching on the Instrument Screen control area Screen ControlsConnect the probe as shown in figure Auto SetupST5952 Mode Switching Between Analog and Digital Operating Modes Signal Criteria Analog Mode Digital ModeOther Criteria Signal with an ampli Getting Started Signal Criteria Analog Mode Digital ModeTude of 2 to 6.4 divi SionsReconnect the probe to the Probe Adjust signal for display Vertical SetupAC Input Coupling Getting Started Timebase setup Timebase SetupMagnify Expand Direct trigger setup Direct Trigger SetupSummary PRE-TRIGGER View Menu keys and softkeys More Advanced FeaturesCursor Operation Vertical cursors ’’ or the horizontal cursors ’=’ More Advanced Trigger Functions 10 More advanced trigger setupMore Signal Detail with the Delayed Timebase Standard SetupPress the Status key and Text OFF key at the same time for MTB1.00ms Ch1 Select Clear & Protect Select Clear ALL Trace StoragePress the Recall key Here is how traces are stored in memoryPM3394B 200 MHz Full Four Channel Oscilloscope HOW to USE the InstrumentPM3384B 100 MHz Full Four-Channel Oscilloscope PM3390B 200 MHz 2 Channel OscilloscopePM3380B 100 MHz 2 Channel Oscilloscope PM3370B 60 MHz 2 Channel OscilloscopeFront Panel Layout HOW to USE the Instrument Recall Standard Setting Display and Probe AdjustmentsDisplay Adjustment Simultaneously press the Status and Text OFF keysDisplay Layout Menus Text OFF Off TPress the Text OFF key three times Repeat this adjustment for the second probe CAL Signal and Probe AdjustmentAnalog and Digital Modes Autorange attenuator Not available Results in a An amplitude of 2 toDivisions Analog to Digital Mode Switching Standard SettingPress the Autoset key for optimum signal display Press the Analog key again12HOW to USE the Instrument Trace Storage RUN/STOPPress the RUN/STOP key Vertical Deflection Vertical Coupling AC, DC, GND 14HOW to USE the InstrumentPress the AC DC GND key once for DC input coupling Press the AC DC GND key to obtain ground couplingPress the AC DC GND key again to obtain ac input coupling Vertical PositionAdjust Ampl to 100 mV 16HOW to USE the InstrumentVertical Amplitude Press the upper key of the Ampl keysVertical Variable Amplitude Verticalauto RangePress the Auto Range key Press the upper Ampl key oncePress the Analog key to switch to the Digital mode 18HOW to USE the InstrumentPress the Analog key to return to the analog mode Vertical CH1+CH2Vertical Invert Vertical Menu Bandwidth Limiter 20HOW to USE the InstrumentPress the ’BW LIMIT’ softkey to turn it on Press the ’BW LIMIT’ softkey to turn it off againRemove the input signal from CH1 Vertical Probe Range IndicatorVertical Menu Connect the probe againHorizontal Deflection and Triggering Signal is displayed with four periods on the screenTimebase TIME/DIV Set the timebase to 200 μsTimebase Main TB VAR Timebaseauto RangeDisplay of 2 to 6 waveform periods Press one of the TIME/DIV keysTimebase Magnify 24HOW to USE the InstrumentVisible by turning the X POS control Press the right Magnify keyTimebasex POS TriggeringTurn the X POS control clockwise 26HOW to USE the Instrument Trigger SourceTriggerslope Turn the Trigger Level control Trigger Trigger LevelSet the delay to 0 with Trigger Position Press the Analog key to select the digital modeTrigger Trigger Position Turn the Trigger Position control counterclockwiseTrigger Single Shot Digital Acquisition and Storage Advanced Vertical Functions Acquire Average 32HOW to USE the InstrumentAcquire Peak Detection Acquire EnvelopePress the first softkey to select ’tv’ trigger mode Trigger ModeAdvanced Horizontal and Trigger Functions Press the Trigger keyPress the ’level-pp’ softkey to turn it off 36HOW to USE the Instrument Trigger Mode TriggeredPress the TB Mode key Move the indicator T- in and out of the signal rangePress the ’STOP on TRIGGER’ softkey to select ’yes’ Trigger Mode Roll38HOW to USE the Instrument Slowly vary the frequency of the sine-wave input signalTrigger Line Trace Storageclear & Protect Memory FunctionsPress the ’yes’ confirm softkey Press the ’yes’ confirm softkey againTrace Storage Save 40HOW to USE the InstrumentTrace Storage Clear Select memory location ’m1’ Press the ’save’ softkeyTrace Storage Copy Trace can be copied from one memory location to anotherPress the ’COPY’ softkey Trace Storage Recall 42HOW to USE the InstrumentTurn the POSition control Live trace shiftsTrace Storage Recalling Multiple Traces Trace Storage Saving Multiple TracesPress the softkey next to ’yes’ Press the Recall menu key44HOW to USE the Instrument Cursors FunctionsTime measurements. These can be done in digital Cursors Time Cursors ON/OFF46HOW to USE the Instrument Cursors VoltCursors Amplitude & Time Cursors Readout Press the softkey next to ’READOUT’ΔV, V1, V2, ΔV-ratio for voltage measurements Cursors Readout ΔT-RATIO/PHASE 48HOW to USE the InstrumentAdjust the cursors to a distance of half a signal period Measurement Functions Start with the standard setting.This ensures a correct startMEASUREMEAS1-PKPK 50HOW to USE the InstrumentMeasure MEAS1-RMS Press the second softkey to turn MEAS1 to ’on’Remove the Probe Adjust signal from channel Measure DelayPress the first softkey to select ’delay’ Measure Meas 2-FREQMeasure Cursor Limit 52HOW to USE the InstrumentMeasure TOUCH, Hold & Measure Procedure to set up for TOUCH, Hold and Measure isProcessing Functions Press the softkey next to Math 1 to enter the Math 1 submenu Mathematics Filter56HOW to USE the Instrument Switch Math 2 off againMathematics Multiply Analog Display Defl Display Functions50Hz Digital Display Remove the signal from channelScope ’runs’ once and a signal appears on the screen 60HOW to USE the InstrumentUse the Track control to adjust Vert Magnify to Digital Display Vert MagnifyDigital Display Interpolation Press the bottom softkey to select ’dots’Press the bottom softkey to select ’sine’ Connect the Probe Adjust signal to channels 1 Press Autoset 62HOW to USE the InstrumentDigital Display Windows Screen displays two or four traces nowDelayed Timebase Delayed TimebaseDelayed Timebase DEL’DTB has two basic functions Press the Text OFF button to turn off the menuPress either key of the Del’dTB TIME/DIV keys 64HOW to USE the InstrumentDelayed Timebase Trace SEP Delayed Timebase TriggerStart with the Standard Setup Press the Trig 1 key in the CH1 section a few times Press the softkey to select the TRIG’D modeDelayed Timebase Coupling Delayed Timebase Trigger LevelFirst set the instrument to the standard setting Hard Copy FacilitiesSET Standard 9600, 8, N, 3wire, XON/XOFF=ON Utility Print SetupTo set up the layout of the printer hard copy Now you are ready to make the hard copyHP7475A, HP7470A, Hpgl = standard HPGL, PM8277 and PM8278 Utility Plot SetupAutoset Standard Autoset and Setup Utilities72HOW to USE the Instrument SetupsAutoset User Programmable Position the trace in the bottom of the screenTo recall a previously stored setting This setup can be saved in memory as followsSetup Recall a Sequence Setup Text Label74HOW to USE the Instrument AutocalOther Features Function Reference Function ReferenceDescription Acquisition LengthKey sequence Memory ExpansionToggle key to switch the inverted display of CH2 CH4 on/off ADD Invert SubtractINV ADD Mathematics Mathematical descriptionResult = S1 + S2 CPL QW Command to query a waveform Refer to for full details Remote commandsALT/CHOP Analog Mode Toggle softkey to select ALTernate or CHOPped modeAlternate and chopped modes are shown in the figures below Auto Range Toggle key to switch between analog mode and digital modeAnalog Auto RangeAutoset CPL AS Command for Auto Setup Refer to for full detailsAutoset Key to start the autosetAutoset Sequence Utilityautoset Autoset UserprogVert TrigAutoset CPL AS Command for an Auto Setup Refer to for full detailsControl to select the Average factor Key to switch the Average function on or offEffect of bandwidth limiter CPL CL Command for Calibrate Refer to for full details Calibration AutocalCAL CHANNEL/TRACE Selection Confidence Check Power on OFFCursors Volt cursors are used for CursorsVoltage measurements. When More than one channel is on, Desired channel for voltageTrack Function Reference Cursors BothMeasured Cursors Readout TimeFunction Reference Cursors Readout Volt Full description is given under Delayed Timebase DelayEvent delay Trigger positionCH1 Slope Delay Measurement Delayed Timebase DEL’D TB Delay Function of ’mtb+dtb’, Delay and Trace SEPToggle switch to switch between analog mode and digital mode Digital ModeInterpolation Display MenuLines are drawn between sample points Display Text Amplitude variation AM Variation FM or jitter Display of signal withExternal Trigger 2 Channels Models only Trig ViewAmpl Filter Glitch Trigger Hold OFF Using Hold OFF to suppress double triggering Control to adjust Main TB hold off timeHold OFF Function of key pair AMPL/VAR Input Attenuator Manual + AutomaticInput Coupling Toggle key to switch the Auto Range function on/offAuto RangeInput Impedance 200 MHZ Models only Toggle key to switch a channel on/offAC/DC/GND AC/DCLogic Trigger 4 Channels Models only StatePattern Ift2 To adjust t2Glitch Refer to Glitch Trigger functionFunction of the timebase magnifier and X POS control Magnify HorizontalLeft side decreases the Magnify factor Magnify VerticalFunction of vertical magnifier and Y POS control Control to select the vertical magnification46FUNCTION Reference Main Timebase Manual + AutomaticFunction of key pair TIME/DIV VAR VAR nsMeasure Menu MathematicsFollowing measurements are available VoltPositive and negative, preshoot positive and negative Multiply Mathematics Result = S1 x S2 Peak Detection POS Toggle key to switch the peak detection on/offPower Supply Toggle key to switch the oscilloscope on/offPrinting and Plotting Interface Printer or plotterLayout Real-time clock Toggle softkey to plot trace information Probe Utilities Key to switch from remote to local Remote Control IeeeControl to select the Ieee device address StatusRemote Control RS-232 ParityOdd Even LL Inhibits front key Status Local Refer to for full details RUN/STOP Screen Controls and Graticule Rise time measurement using the graticuleScreen controls and function Trace RotationScreen Messages Auto SettingAlways Parity if 7 Bits Autocal NecessaryCalibration Error Auto Setting UserprogramKEY Inactive When Stopped No Average in Roll ModeNo Envelope in Roll Mode No DTB in Roll ModeNo Event DELAY, Dual Slope No Event Delay in TV ModeSetup Protected Setup EmptySTD Setup = Recall only TIME/DIV AdjustedSetups Track Setups Sequence Standard Setup / Front Panel Reset Softkey to recall ’std’ settingsStd memory selection Status Screen Subtract mode is available in the digital mode of operation Subtract MathematicsResult = S1 S2 Control to select the Subtract process Text OFF Timebase ModesSelected, the TB Mode menu provides a ‘STOP on TRIGGER’ Flows ‘through’ the screen from left to right. When Roll isTRIGGER’ is set to ‘on’, the trace stops when the scope is Acquired waveform is stored in a different memory locationTime Measurements Function Reference Time TOUCH, Hold & Measure Mode Trigger Coupling Ac dc lf-rej Trigger hf-rej Trigger DEL’D TB DelayToggle softkey to switch DEL’D TB ’on’ Trigger Level control ranges in level-pp on and off Trigger Main TB Trig Toggle key to select CH1, CH.. or Exttrig as Main TB Function of Trigger Level and slopeSlope to change between positive and negative trigger EdgeTV Trigger Key sequence Usertext Utility Maintenance Util Menu Utility Screen & Sound Sn = nth sample j=n=k Volt Measurements× S n Oversh Overshoot 100%Falling presh = Limit Deflection X-DEFL, X vs Y Toggle softkey to switch X vs Y on CPL Protocol CommandsResponses AcknowledgeData Separators Program data separatorProgram frame Example Program Frame4THE CPL Protocol Commands in Functional OrderCommands in Alphabetical Order Name Command ReferenceAcknowledge Command Response8THE CPL Protocol ARM TriggerCalibrate 10THE CPL Protocol Default SetupGO to Local 12THE CPL Protocol GO to RemoteIdentity string IdentificationExample response Local Lockout 16THE CPL Protocol Program CommunicationXonxoff HWLApprox .5 sec after an acknowledge = 0 is received, 18THE CPL Protocol Program SetupCount Node Pds Count NodeProgram Text PdsChar Char Character Description Examples of user text Program Waveform Sample checksum Admin Pds Count22THE CPL Protocol Pds WavenrAction by Parameter Type Example Oscilloscope Notes Example LSB = Sample and &HFF Example programQuery Measurement Results is returned cancelling is possible by sending Ascii26THE CPL Protocol Numerical values of an infinite number of measurementValue Parameter specified Value,value T2-trgPoint notation, e.g E-09 MeasvalueOr Hz Example of a single measurementNull Query PrintExample Written in Quick Basic 30THE CPL ProtocolQuery Setup Count Number of strings to follow NodeOscilloscope, e.g =10 hex Example response PM3394 Complete setup queryUser text is returned Query TextPrinted, e.g Query Waveform Admin Count Sample ChecksumParameter Type Example Wavenr The oscilloscope waveform sourceInput #1,NM$ Symbol Parameter Value Type SettingsInterpretation of waveform data DisplayFormula’s DefinitionsSn = Yz + Yn * Yr * Yu SensitivityTime base = 50 * Xr * Xu/div Time baseReset Instrument Recall Setup Pds Setup reg42THE CPL Protocol Represents the setup register number, ranging from 1 Save Setup44THE CPL Protocol StatusExample status 46THE CPL Protocol Trigger AcquisitionExecution error Ok, normal situation Syntax errorSynchronization error AcknowledgeStatus Example program to investigate status Common vertical settings SetupCommon horizontal settings Main Timebase settingsCursor settings Hex Dec Meaning Events Trigger Delay settingsCursor autosearch settings Measurement 1 settings Measurement 2 settingsNnllxxxxxx.......xx Acquire Menu Structure Appendix a Acquire menu structureDigital Appendix B Cursors menu structureCursors menu structure Display Menu Structure Appendix C Display menu structuredMathematics Menu Structure Appendix D Mathematics menu structureMeasure Menu Structure Appendix F DTB DEL’D TB menu structure SAVE/RECALL Menu Structure Setups Menu Structure Appendix H Setups menu structureTB Mode Menu Structure Appendix J TB Mode menu structureDiv T Appendix K Trigger menu structureTrigger menu structure Appendix L Utility menu structure Utility menu structure Vertical Menu Structure Vert Menu Vertical BW LimitOn off 50Ω CH1 50Ω CH2 50Ω CH3 50Ω CH4 RTS RS-232 Cable ConfigurationsCTS DTRCable to controller with hardware handshake Cable to printer/plotter with hardware handshakeChannels Simultaneously Sampled AT 100 MS/s Appendix PChannel Acquisitions Expansion and Interpolation Function Index Function Index see ChapterFunction Index Index Delayed Timebase Trigger DEL’D TB TOUCH, Hold & Measure ModeDisplay and Probe Adjustment Display Functions Display Menu Measure Menu Time Measuremens Volt MeasurementsInstallation Instructions Appendix N Printing and Plotting Remote Control IeeeUtil Maintenance Glitch Trigger GND Input CouplingPrinting and Plotting Remote Control RS-232 CHANNEL/TRACE Selection SetupsMemory Functions Memory BACK-UP BatteriesTimebase Modes Delayed Timebase Autoset and Setup Utilities Setups Setups SequenceScreen Messages Utility Screen & Sound Timebase ModesAdvanced Vertical Functions 8FUNCTION IndexCursors Readout Measure Menu Volt Measurements Display Menu Deflection