Tektronix 2230 Operator'S Manual Download

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Summary of Contents for 2230

Page 1: ...TORS MANUAL First Printing FEB 1988 Revised MAY 1988 2230 070 4998 02 Product Group 41 DIGITAL STORAGE OSCILLOSCOPE OPERATORS Please Check for CHANGE INFORMATION at the Rear of This Manual COMMITTED TO EXCELLENCE ...

Page 2: ... and price change privileges are reserved INSTRUMENT SERIAL NUMBERS Each instrument has a serial number on a panel insert tag or stamped on the chassis The first number or letter designates the country of manufacture The last five digits of the serial number are assigned sequentially and are unique to each instrument Those manufactured in the United States have six unique digits The country of man...

Page 3: ...eses Gerates angezeigt und die Berechtigung zur Uberprufung der Serie auf Einhalten der Bestimmungen eingeraumt TEKTRONIX NOTICE to the user operator The German Postal Service requires that Systems assembled by the operator user of this instrument must also comply with Postal Regulation Vfg 1046 1984 Par 2 Sect 1 HINWEIS fur den Benutzer Betreiber Die vom Betreiber zusammengestellte Anlage innerha...

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Page 5: ... 3 Page Section 6 BASIC APPLICATIONS INTRODUCTION 6 1 OSCILLOSCOPE DISPLAYS 6 1 NON STORE DISPLAYS 6 1 DIGITAL STORAGE DISPLAYS 6 3 MAKING DIGITAL STORAGE MEASUREMENTS 6 5 Ac Peak To Peak Voltage Using Cursors 6 5 Ground Referenced De Voltage 6 5 Time Duration 6 6 Frequency 6 7 Rise Time 6 7 Waveform Comparison 6 8 Time Difference Between Repetitive Pulses 6 9 Time Difference Between Two Time Rela...

Page 6: ...C COMMANDS 7 51 Appendix A PERFORMANCE CHECK PROCEDURE ii INTRODUCTION A 1 PURPOSE A 1 PERFORMANCE CHECK INTERVAL A 1 STRUCTURE A 1 Page TEST EQUIPMENT REQUIRED A 1 LIMITS AND TOLERANCES A 1 PREPARATION FOR CHECKS A 1 INDEX TO PERFORMANCE CHECK STEPS A 3 VERTICAL A 4 INITIAL CONTROL SETTINGS A 4 PROCEDURE STEPS A 4 HORIZONTAL A 11 INITIAL CONTROL SETTINGS A 11 PROCEDURE STEPS A 11 TRIGGER A 15 INI...

Page 7: ...be compensation 5 2 6 1 Ac peak to peak voltage cursor method 6 5 6 2 Ground referenced de voltage cursor method 6 6 6 3 Time duration cursor method 6 6 6 4 Rise time setup five division display 6 7 6 5 Rise time cursor method 6 8 6 6 Waveform comparison 6 9 6 7 Time difference between repetitive pulses 6 9 6 8 Time difference between two time related pulses 6 10 6 9 Phase difference between sinus...

Page 8: ...nnections DTE male to DTE male and DCE male to DCE male 8 7 Type 81 Connections DTE female to DTE male and DCE female to DCE male 8 8 Type 82 Connections DTE female to DTE female and DCE female to DCE female 8 9 Option 12 RS 232 C Printer Plotter interconnects 8 11 Option 12 RS 232 C communication parameters 8 11 HP 7470A and HP 7475A plotter RS 232 C switch settings 8 12 Option 12 PARAMETERS swit...

Page 9: ...s for Option 12 7 11 RS 232 C DTE Connector 7 11 RS 232 C DCE Connector 7 12 RS 232 C PARAMETERS Switch 7 13 Baud Rate 7 13 Parity Selection 7 14 Readout MESsage Command Character Set 7 18 ASCII Code Chart 7 19 Numeric Argument Format for Commands 7 21 Typical 8 Bit Binary Encoded Waveform Data 7 22 Typical 16 Bit Binary Encoded Waveform Data 7 23 Typical 8 bit Hexadecimal Encoded Waveform Data 7 ...

Page 10: ... Page Test Equipment Required A 2 Deflection Accuracy Limits A 4 Storage Deflection Accuracy A 5 Settings for Bandwidth Checks A 7 Settings for Timing Accuracy Checks A 12 Switch Combinations for Triggering Checks A 15 Cable Type Identification B 3 RS 232 C Transfer Rates B 17 ...

Page 11: ...tor and ground A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation Grounding the Product This product is grounded through the grounding conductor of the power cord To avoid electrical shock plug the power cord into a properly wired receptacle before con necting to the product input or output terminals A protec tive ground connection by...

Page 12: ...2230 Operators The 2230 Digital Storage Oscilloscope 4998 01 viii ...

Page 13: ...ts time difference measurements and delay time measure ments on any of the store mode waveform displays Delta volts delay time delta time and 1 delta time either delta time or 1 delta time is selectable via the MENU are displayed in the crt readout for ease in obtaining precise measurement results The cursors are positioned to any displayed store mode waveform to make measurements An alternate use...

Page 14: ...vision ignoring expansion and compres sion In addition the averaged number is stored with up to twelve bits of resolution Expansion is required to view the eleventh and twelfth bits of increased resolution Time is quantified to determine when each sample occurred and which display interval gets each sample Time is resolved by storing for example 4K points If 4K points are stored 4K time intervals ...

Page 15: ...et to 5 mV div Storage Acquisition Vertical Resolution 8 bits 25 levels per division 10 24 divisions dynamic range Range of VOLTS DIV Variable Control Continuously variable between settings Increases deflection fac tor by at least 2 5 to 1 Step Response NON STORE Rise Time 0 c to 35 C 5 mV div to 5 V div 3 5 ns or less 2 mV div 4 4 ns or less 35 C to 50 C 5 mV div to 5 V div 3 9 ns or less 2 mV di...

Page 16: ... 50 n source driving a 50 n coaxial cable terminated in 50 n at the input connector with the VOLTS DIV Variable control in the CAL detent NON STORE BW LIMIT 3 dB 20 MHz 10 AC Coupled Lower Cutoff Frequency 10 Hz or less at 3 dB Useful Storage Performance RECORD SCAN and ROLL Store Modes SAMPLE Acquisition no AVERAGE Single Trace CHOP ALT 10 5 5 µs div to 5 s div Hz Hz SEC DIV SEC DIV EXT EXT EXT C...

Page 17: ...t used Maximum signal to noise improvement is achieved after 2 x weight factor x expected acquisitions to fill Frequency Response Frequency response of the AVERAGE Storage Mode is a function of the number of triggered acquisitions added to the weighted average Time jitter of a signal with respect to the sample clock will pro duce a low pass filter characteristic of an averaged waveform NON STORE C...

Page 18: ...Resistance 1 Mn 2 Capacitance 20 pF 2 pF Maximum Safe Input Voltage See Figure 1 1 for maximum input voltage vs frequency derating CH 1 and CH 2 curve DC and AC Coupled 400 V de peak ac or 800 V ac p p at 10 kHz or less NON STORE Channel Isolation Greater than 100 to 1 at 50 MHz STORE Channel Isolation 100 to 1 at 50 MHz POSITION Control Range At least 11 divisions from graticule center A 8 SWP SE...

Page 19: ...mum input voltage vs frequency derating curve Input Resistance 1 Mfl 2 Input Capacitance 20 pF 2 5 pF AC Coupled Lower Cutoff Frequency 10 Hz or less at 3 dB LEVEL Control Range A Trigger NORM INT May be set at any voltage level of the trace that can be displayed EXT DC At least 1 6 V 3 2 V p p EXT DC 10 At least 16 V 32 V p p B Trigger Internal May be set at any point of the trace that can be dis...

Page 20: ... over the center eight divisions Exclude the first 40 ns of the sweep for magnified sweeps and anything beyond the 100th magnified division STORE Accuracy See Horizontal Differential Accuracy and Cursor Time Difference Accuracy NON STORE Sweep Linearity 0 5 s div to 10 ns div Within 0 1 division 5 ns div Within 0 15 division Linearity measured over any two of the center eight divisions Exclude the...

Page 21: ...ision will position past the center vertical grat NON STORE icule line 100th division in X10 magnified Horizontal Variable Sweep Control Range NON STORE Continuously variable between calibrated settings of the SEC DIV switch Extends the A and the B Sweep speeds by at least a fac tor of 2 5 times over the calibrated SEC DIV settings STORE Horizontal Variable Sweep has no affect on the STORE Mode ti...

Page 22: ...es can be positioned to the top and to the bottom of the graticule area Position Registration NON STORE to STORE Within 0 5 division at graticule center at VOLTS DIV switch set tings from 2 mV per division to 5 V per division CONTINUE to SAVE Within 0 5 division at VOLTS DIV switch settings from 2 mV per division to 5 V per division SAVE Mode Expansion or Up to 10 times as determined by the remain...

Page 23: ... detent position NON STORE Accuracy Measured with a dc eoupled five division reference signal X Axis 15 C to 35 C Within 3 0 C to 50 C Within 4 Y Axis Same as vertical deflection system NON STORE Bandwidth 3 dB Measured with a five division reference signal X Axis DC to at least 2 5 MHz Y Axis Same as vertical deflection system NON STORE Phase Difference Between X Axis 3 degrees or less from de to...

Page 24: ...1 12 Table 1 1 cont Performance Requirements PROBE ADJUST 0 5 V 5 1 kHz 20 Z AXIS 5 V causes noticeable modulation Positive going input decreases intensity Usable frequency range is de to 20 MHz 30 V de peak ac or 30 V p p ac at 1 kHz or less 10 kQ POWER SUPPLY 90 Vac to 250 Vac 48 Hz to 440 Hz 85 watts 150 VA 2 A 250 V slow blow Routine test to 1500 Vrms 60 Hz for 10 seconds without break down CR...

Page 25: ...xcessive con densation shall be removed before operating during step 7 To 4 500 meters 15 000 feet Maximum operating temperature decreases 1 C per 1 000 feet above 5 000 feet To 15 000 meters 50 000 feet 5 cycles 120 hours referenced to MIL T 28800C para 4 5 5 1 2 2 for Type 111 Class 5 instruments Operating and nonoperating at 95 5 to 0 relative humidity Operating 30 C to 50 C nonoperating 30 C t...

Page 26: ...TS DC PLUS PEAK AC l 400 300 1 Table 1 3 Physical Characteristics Description See Figure 1 2 for dimensional drawing 9 4 kg 20 7 lb 8 2 kg 18 lb 12 2 kg 26 9 lb 137 mm 5 4 in 362 mm 14 3 in 327 mm 12 9 in 445 mm 17 5 in 435 mm 17 1 in 510 mm 20 1 in 200 100 50 20 10 10 KHz 50 KHz 100 KHz FREQUENCY 500 KHz 1 MHz 12 5V I I 100 MHz 4207 28 Figure 1 1 Maximum input voltage vs frequency derating curve ...

Page 27: ... 10 510 111 L EB J 0 Dimensions are in inches mm 11 21 285 15 91 404 17 13 435 14 73 374 I 0 General lnformation 2230 Operators t l 4 85 123 5 13 130 i l 11 20 284 12 60 320 f 5 42 8 13 l 12 88 7 32 4735 40 Figure 1 2 Physical dimensions of the 2230 Oscilloscope 1 15 ...

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Page 29: ...al parts of the instrument For electrical shock protection insert this plug only into a power source outlet that has a properly grounded protective ground contact Instruments are shipped with the power cord specified by the customer Available power cord information is presented in Figure 2 2 and part numbers are listed in Options and Accessories Section 7 Contact your Tektronix representative or l...

Page 30: ...use nomenclature 2 2 CAUTION FOR CONTINUED FIRE PROTECTION REPLACE ONLY WITH SPECIFIED TYPE ANO RATED FUSE OISCONNECT POWER INPUT BEFORE REPLACING FUSE LINE VOLTAGE RANGE FUSE 250V 90 250V AC 00 NOT REMOVE COVER REFER SERVICING TO OUALIFIED PERSONNEL POWER MAX WATTS 85 POWER CORD CONNECTOR 2A SLOW LINE FUSE EXT Z AXIS INPUT 10Kn POSITIVE GOING INPUT DECREASES INTENSITY 5 VOLT P P CAUSES NOTICEABLE...

Page 31: ...ws 1 Obtain a corrugated cardboard shipping carton hav ing inside dimensions at least six inches greater than the instrument dimensions and having a carton test strength of at least 275 pounds Preparation for Use 2230 Operators 2 If the instrument is being shipped to a Tektronix Service Center for repair or calibration attach a tag to the instrument showing the following owner of the instrument wi...

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Page 33: ...ness of all NON STORE displayed waveforms The control has no effect on the STORE mode displays or the crt readouts B INTENSITY Control Adjusts the brightness of the NON STORE B Delayed Sweep and the Intensified zone on the A Sweep The control has no effect on STORE mode displays or crt readouts VERTICAL Refer to Figure 3 2 for location of items 10 through 19 VOLTS DIV Switches Select the vertical ...

Page 34: ...dicators 2230 Operators Tektronix 2230 100 MHz DIGITAL STORAGE OSCILLOSCOPE j BE I STORAGE READOUT INTENSITY ON OFFO 5 READOUT TOGGLE 5 0 POWER J o V ON i Figure 3 1 Power and display controls and power on indicator 3 2 4998 04 ...

Page 35: ... 1X O I PROBE it NE CJ I 0 90 01 S GNO OC lM l 10pf GNO Controls Connectors and lndicators 2230 Operators lM l 20pF 5400V pk 4998 05 Figure 3 2 Vertical controls and connectors 3 3 ...

Page 36: ...th the associated VOLTS DIV readout CH 1 OR X and CH 2 OR Y Input Connectors Provide for application of signals to the inputs of the vertical deflection system and the storage acquisition system Coding ring contacts on each of the input connec tors are used to automatically switch the scale factor displayed by the crt readout when a properly coded probe is attached to the input connector Displayed...

Page 37: ...f displayed waveforms during acquisition and in SAVE mode Any portions of a signal being acquired that are outside the dynamic range of the AID converter are blanked when positioned on screen The Vertical POSITION controls can also reposition a vertically expanded SAVE waveform so that portions of the waveform outside the graticule area can be observed Controls Connectors and lndicators 2230 Opera...

Page 38: ...o the trigger circuit and there is no trigger marker on the screen Triggers are ignored in STORE mode at SEC DIV settings of 5 s per division to 0 1 s per division under the following conditions ROLL is selected Selecting ROLL forces the screen to continuously update as on a chart recorder Triggers would stop the display ROLL is operational at sweep speeds slow Table 3 2 Default Digital Storage Mo...

Page 39: ...SCAN Storage mode for NORM TRIGGER mode and 0 1 s div to 5 s div or EXT CLOCK updates pretrigger data when a trigger is received The waveform display then scans to the right from the trigger point to finish the post trigger acquisition and then freezes Controls Connectors and lndicators 2230 Operators SCAN Storage mode for P P AUTO TRIGGER mode with auto triggers disabled and 0 1 s div to 5 s div ...

Page 40: ... base of these three settings is increased by a factor of 10 to 1 s div 2 s div and 5 s div Releasing the button returns the STORE mode time base to X1 The X10 MAG control is still functional on waveforms acquired at the slow STORE mode SEC DIV settings Variable SEC DIV and 4K COMPRESS Control Controls the NON STORE sweep time per division and compresses STORE mode waveform records Variable SEC DI...

Page 41: ...ition setting for STORE mode displays by a factor of approximately four times When switching between 1K and 4K record lengths the delay time position setting must be readjusted to obtain the same delay time Horizontal POSITION Control Positions all the NON STORE waveforms horizontally over a one sweep length range either X1 or X10 Magnified Using the Horizontal POSITION control STORE mode waveform...

Page 42: ...gger circuit for a single sweep in NON STORE or a single acquisition in STORE Triggering requirements are the same as in NORM Trigger mode After the completion of a triggered NON STORE sweep or a STORE SGL SWP acquisition pressing in the SGL SWP but ton rearms the trigger circuitry to accept the next triggering event or start the next storage acquisi tion In STORE mode when the SGL SWP is armed th...

Page 43: ...coupling the signal applied to the EXT INPUT con nector to the input of the A Trigger circuit AC Input signal is capacitively coupled and the de component is blocked DC All frequency components of the external signal are coupled to the A Trigger circuit DC 10 Attenuates the external signal by a fac tor of 10 before application to the A Trigger cir cuit As with DC COUPLING all frequency com ponents...

Page 44: ...tion The SEC DIV readout is adjusted to reflect the correct time per division of the displayed waveform The acquisition record may be magnified using the X10 Magnifier PRETRIG POST TRIG Switch Positions the trigger point for acquisitions either near the end PRETRIG or the beginning POST TRIG of the waveform A T is displayed on the waveform to indicate the trigger point Pressing the button in sets ...

Page 45: ... from the following Acquisition CH 1 and CH 2 Refer ence 1 CH 1 and CH 2 Reference 2 CH 1 and Controls Connectors and lndicators 2230 Operators CH 2 and Reference 3 CH 1 and CH 2 Cursors move to the acquisition waveform if they were on a SAVE REF waveform that is turned off The acquisition parameters of the waveform set in which the cursors are located are displayed in the crt readout Cursors mova...

Page 46: ...ted in the MENU The but ton recalls the previous to the left higher Menu level The T button selects the previ ous entry in the current Menu level The 1 button selects the next entry in the current Menu level MENU SELECTED FUNCTIONS This part describes the Menu selected functions that provide selection of parameters settings and features not controlled by the front panel switches NOTE Some menus ch...

Page 47: ... waveform over the X Y Plotter output GRATICULE ON OFF Enables or disables plotting of the graticule SET UP Allows calibration of analog plotter gain and offset Controls Connectors and lndicators 2230 Operators SPEED Allows selection of plotter pen speed ADVANCED FUNCTIONS REFERENCE Allows a SAVE REF memory to be Erased or Copied when one of the communication options is installed ERASE Selects and...

Page 48: ...ly The amplitude resolution increases with the number of weighted acquisitions included in the display The number of weighted acquisitions included in the AVER AGE display is Menu selectable The default weight of AVERAGE mode is 1 4 Other choices are Menu select able The number of sweeps SWP LIMIT allowed to occur before averaging stops is also Menu selectable REAR PANEL Refer to Figure 3 6 for lo...

Page 49: ...e A SEC DIV switch Samples are referenced by falling edges Input is TTL compatible Samples become visible by pairs as SCAN or ROLL Several clocks are required before the point associated with the first clock is visible Table 3 4 Auxiliary Connector Pin Number Function 1 2 3 4 5 6 7 8 9 EXT CLK Input Pen Lift Normally Closed X Output SHIELD GND Y Output 4 2 V Pen Lift Normally Open Pen Lift Relay C...

Page 50: ... HI GH SIGNAL I I I SI LI CON 2K 0 5W SIG I 1 GND 9 r ilt 7 sI GNAL GROUND J SHIELD 11 r v J ACTIVE HIGH PEN LIFT AUXILIARY CONNECTOR J1011 l n 0 _9 tI 250mA I I I I I NO 7 j a SIGNAL GROUND PEN DOW 14 2V 611 I 5V 1 t ACTIVE LOW SIGNAL SI LI CON 2K 0 5W IsI G I 1 GND 9 j SHIELD 11 L1u ACTIVE LOW PEN LIFT Figure 3 8 X Y Plotter interfacing 4998 11 ...

Page 51: ...T Displays the voltage difference either N 1 or N 2 and the time difference between cur sors When either BOTH or B HORIZONTAL mode is selected the DELAY TIME POSITION is displayed Independent fields for CH 1 VOLTS DIV CH 2 VOLTS DIV A SEC DIV and B SEC DIV are provided When making ground referenced voltage measurements ground dot displayed and cursor on ground dot the tl symbol is replaced by a gr...

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Page 53: ... of signal lead shielding in the probe cable A separate ground lead can also be connected from the unit under test to the oscilloscope GND receptacle located on the oscilloscope s front panel SIGNAL CONNECTIONS Probes Generally the accessory probes supplied with the instrument provide the most convenient means of connect ing a signal to the vertical inputs of the instrument The probe and probe lea...

Page 54: ...to ground through the input coupling capacitor and a high resistance value This series combination forms a precharging circuit that allows the input coupling capacitor to charge to the average de voltage level of the signal applied to the input connector Thus any large voltage transients that may accidentally be generated are not applied to the vertical amplifier s input when the input coupling is...

Page 55: ...ined display CH 1 Midrange 50 mV DC CAL in detent Off button out Horizontal HORIZONTAL MODE A SEC DIV Var Sec Div POSITION X10 Mag B DELAY TIME POSITION Triggers VAR HOLDOFF A BINT A SOURCE A Mode A LEVEL A SLOPE B LEVEL B SLOPE HF REJECT Storage STORE NON STORE SAVE CONTINUE PRETRIG POST TRIG ROLL SCAN 1K 4K POSITION CURS SELECT WAVEFORM WAVEFORM REFER ENCE MENU SELECT A 0 5 ms CAL in detent Midr...

Page 56: ...anges from 5 mV to 50 mV when the 1OX probe is attached to the CH 1 OR X input 3 Remove the hook tip from the end of each probe NOTE While the probe tip is in the PRB ADJ connector use care not to to break off the probe tip 4 Insert the Channel 1 probe tip into the PRB ADJ connector 5 Use the CH 1 POSITION control to vertically center the display If necessary adjust the A TRIGGER LEVEL control to ...

Page 57: ...of the probe adjust signal 0 1 or 0 2 ms per division 12 Use the Vertical and Horizontal POSITION controls to center the display 13 Use the CURSORS Position control and the CUR SORS SELECT C1 C2 button to align the cursors with the rising edges of the PRB ADJ signal measurement is of the probe adjust signal period Note the cursor time difference readout and the graticule measurement horizontal dis...

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Page 59: ...r to set up and operate the instrument to obtain the most commonly used oscilloscope displays Verify that the POWER switch is OFF push button out then plug the power cord into the ac power input source outlet NON STORE DISPLAVS The following procedures are used to obtain the most commonly used conventional oscilloscope displays Normal Sweep Display 1 Preset the instrument controls and obtain a bas...

Page 60: ...ess jitter may be obtained by adjusting the B TRIGGER LEVEL control for a triggered B Sweep 6 2 NOTE The B DELAY TIME POSITION control will not pro vide continuously variable delay when the B TRIGGER LEVEL control is set to a position other than B RUNS AFTER DL Y Also differential time measurements are invalid when the B TRIGGER LEVEL control is not set to B RUNS AFTER DL Y Alternate Horizontal Sw...

Page 61: ...ggered and the sweep is completed the sweep logic circuitry is locked out Another sweep cannot be generated until the SGL SWP RESET button is pressed in to set the A Sweep Generator to the READY condition Basic Applications 2230 Operators DIGITAL STORAGE DISPLAVS The following procedures explain how to set up and use the digital storage capabilities of the instrument A combi nation of front panel ...

Page 62: ...oint can be selected to be any point within the acquisition record 5 Set the WAVEFORM REFERENCE MENU SELECT switch to the MENU SELECT position button out 6 4 6 Use the MENU SELECT switches to select ACCPEAK or PEAKDET 7 Set the WAVEFORM REFERENCE MENU SELECT switch to the WAVEFORM REFERENCE position button in AVERAGE Mode Display 1 Preset the instrument controls and obtain a baseline display 2 Set...

Page 63: ... CURSORS control to move the cursor to the opposite peak of the waveform see Figure 6 1 NOTE After the waveform is acquired the SA VE Storage mode may be selected This mode holds the waveform frozen and reduces the amount of cursor jitter seen in the display The SA VE display may be expanded horizontally and vertically for a more detailed examination of the waveform see SA VE Mode Display 4998 14 ...

Page 64: ... is moved after the ground reference is stored the displayed ground reference is no longer a valid reference Also the accuracy of the ground reference is affected by de offsets due to thermal drift and balance DC and INVERT adjustments Additionally if the AC GND DC switch is set to AC the location of the ground reference indicates the average value of the ac com ponent of a waveform 6 Set the POSI...

Page 65: ... the CURSORS control to move the cursor to the end of the frequency to be measured 9 Read the frequency between the cursors from the crt readout Basic Applications 2230 Operators Rise Time Rise time measurements use the same methods as time duration except that the measurements are made between the 10 and 90 points on the leading edge of the waveform Fall time is measured between the 90 and 10 poi...

Page 66: ...or amplitude timing or pulse shaped analysis may be easily and accurately made using the SAVE REF function of the instrument 1 Preset instrument controls and obtain a baseline trace 2 Set the STORE NON STORE switch to the STORE position button in 3 Select a VOLTS DIV switch setting that gives the desired vertical deflection 4 Set the A SEC DIV switch to display the reference signal with the desire...

Page 67: ... A SEC DIV switch to display the points of interest between which the measurement is to be made 6 Set the SAVE CONTINUE switch to the SAVE posi tion button in to hold the acquired waveform and to pro vide a more stable display for measurement 7 Set the POSITION CURS SELECT WAVEFORM switch to the POSITION CURS position button in 8 Use the CURSORS control to move the active cur sor to the 50 level o...

Page 68: ...CURSORS control to move the active cur sor to the 50 point of the Channel 1 pulse leading edge NOTE Pulses with a fast rise time have only a few sample points on the leading edge and it may not be possi ble to place the dot at exactly the 50 level on the leading edge 6 10 ltiV1 5 8 v T ti 0 4911s tiV2 F2 2 v t T I rn 00 I 0 I I CHANNE t 3 J L L 1 CURSORS r l Js ca CHANNEL2 Is 2V 0 lm 4998 21 Figur...

Page 69: ...RM switch to the POSITION CURS position button in 12 Use the CURSORS control to move the active cur sor to the sine wave s first zero crossover point center horizontal graticule line 13 Push the SELECT C1 C2 button to select the other cursor and use the CURSORS control to position the active cursor to the sine wave s third zero crossover point 360 14 Note the time of the sine wave period T1 from t...

Page 70: ...ursor and use the CURSORS control to position the cur sor to the second point of interest 9 Read the voltage difference between cursors from the crt readout 10 Read the time difference between the two mea surement points from the crt readout 11 Slope is determined by using the measured voltage and time to calculate the rate of change using the follow ing formula Slope rate of change Change in volt...

Page 71: ... set so that the entire sine wave period fills one tenth of a graticule division it is sam pled only 1O times during its acquisition This means that only ten samples of the waveform will be available to reproduce the waveform for display In theory if a sine wave is sampled at least two times during its period it may be accurately reproduced In practice the sine wave can be reconstructed using spec...

Page 72: ...e number of sam ples per cycle of the input signal is increased However at sweep speeds of 2 µS per division and faster the sampling rate is not increased and if an alias signal is still present at 5 µS per division the frequency limit of the digital circuitry has been exceeded for non repetitive signals When the SEC DIV switch is set for sweep speeds faster than 5 µs div Repetitive Store acquisit...

Page 73: ... or ACCPEAK Acquisition mode 7 Adjust the INTENSITY control as necessary for desired display brightness The glitch should be seen in the display see Figure 6 1 SB It may be expanded further by setting the B SEC DIV switch to faster sweep speeds see Figure 6 1 SC 8 Set the SAVE CONTINUE switch to the SAVE posi tion button in to hold the acquired waveform and provide a more stable display for measur...

Page 74: ...the conventional oscilloscope capabilities of the instrument AC PEAK TO PEAK VOLTAGE To make a peak to peak voltage measurement use the following procedure NOTE This procedure may also be used to make voltage measurements between any two points on the waveform 1 Preset instrument controls and obtain a baseline trace 2 Apply the ac signal to either vertical channel input connector and set the VERTI...

Page 75: ...nel input and obtain a NON STORE display 2 Ensure that the VOLTS DIV Variable control is in the calibrated detent and determine the polarity of the volt age to be measured as follows a Set the AC GND DC switch to GND and vertically position the baseline trace to the center horizon tal graticule line b Set the AC GND DC switch to DC If the waveform moves above the center line of the crt the voltage...

Page 76: ...ting since large voltages may distort the display For example with a VOLTS DIV switch setting of 0 5 V the voltage applied to that channel input should not exceed about 4 volts EXAMPLE Using the graticule center line as O V the Channel 1 signal is at a 3 division positive de level see Figure 6 19A 1 Multiply 3 divisions by the VOLTS DIV switch setting to determine the de level value 2 To the Chann...

Page 77: ...on of the undesired signal component see Figure 6 20B TIME DURATION To measure time between two points on a waveform use the following procedure 1 Preset instrument controls and obtain a baseline trace 2 Apply the signal to either vertical channel input con nector and set the VERTICAL MODE switches to display the channel used 3 Adjust the A TRIGGER LEVEL control to obtain a stable display 4 Set th...

Page 78: ...al to an exact number of vertical divisions by adjusting the VOLTS DIV switch and VOLTS DIV Variable control 4 Establish a vertical conversion factor using the fol lowing formula reference signal amplitude must be known Vertical reference signal Conversion ____ a_m p_li_tu_d_e_ _v_o_lts ____ Factor vertical deflection VOLTS DIV divisions X switch setting 5 Disconnect the reference signal and apply...

Page 79: ...e waveform 1 Preset instrument controls and obtain a baseline trace I I T 100 I 90 r I SIGNAL AMPLITUDE J_ I r I i l1v Basic Applications 2230 Operators BJ I V A V V 1 I HORIZONTAL MEASURE ROM TIMEF To DISTANCE 4998 35 Figure 6 22 Rise time 2 Apply an exact 5 division signal to either vertical channel input connector and set the VERTICAL MODE switches to display the channel used Ensure that the VO...

Page 80: ...both VOLTS DIV switches for 4 or 5 division displays 6 Select BOTH VERTICAL MODE then select either ALT or CHOP depending on the frequency of the input signals 7 Adjust the A TRIGGER LEVEL control for a stable display 6 22 8 Set the A SEC DIV switch to a sweep speed which provides three or more divisions of horizontal separation between the reference points on the two displays Center each of the d...

Page 81: ...V Vari able control so that one reference signal cycle occupies exactly eight horizontal graticule divisions at the 50 rise time points see Figure 6 24 Each division of the graticule now represents 45 of the cycle 360 8 divisions and the horizontal graticule calibration can be stated as 45 per division Basic Applications 2230 Operators CHANNEL 1 REFERENCE ffi 1 i i I i 8 DIVISIONS MEASURE TIME FRO...

Page 82: ...n_d s ___ Factor horizontal distance A SEC DIV divisions X switch setting 6 24 3 For the unknown signal adjust the A SEC DIV switch to a setting that provides sufficient horizontal deflection to make an accurate measurement Do not readjust the SEC DIV Variable control 4 Establish an arbitrary deflection factor using the fol lowing formula Arbitrary horizontal Deflection conversion x A SEC DIV swit...

Page 83: ...terrupt the trigger signal by setting the AC GND DC switch to GND and then back to AC until the desired field is displayed NOTE To examine a TV Field signal in more detail either the X10 Magnifier or the Delayed Sweep Magnification feature may be used 7 To display a selected horizontal line first trigger the sweep on a vertical field sync pulse then use the Magnified Sweep Runs After Delay procedu...

Page 84: ...isplay 4 Set the A SEC DIV switch to a sweep speed which displays at least one complete waveform cycle 5 Select BOTH HORIZONTAL MODE Adjust both the appropriate channel POSITION control and the A B SWP SEP control to display the A trace above the B trace 6 Adjust the B DELAY TIME POSITION control to position the start of the intensified zone to the portion of the display to be magnified see Figure...

Page 85: ... to display the A trace above the B trace 7 For the most accurate measurement set the B SEC DIV switch to the fastest sweep speed that provides a usable visible intensified zone 8 Adjust the B DELAY TIME POSITION control to move the intensified zone to the leading edge of the first Basic Applications 2230 Operators pulse on the A trace then fine adjust until the rising por tion on the B trace is c...

Page 86: ...ortion of the display as much as possible 6 Select the B HORIZONTAL MODE Adjust the B DELAY TIME POSITION control until the display intersects the 10 point at the center vertical graticule line see Fig ure 6 28 Point A 7 Record the DELAY TIME POSITION readout 8 Adjust the B DELAY TIME POSITION control until the display intersects the 90 point at the center vertical graticule line see Figure 6 28 P...

Page 87: ... tical graticule line see Figure 6 29 Point A 8 Record the DELAY TIME POSITION readout 9 Select CH 2 VERTICAL MODE and adjust both the Channel 2 POSITION control and the A 8 SWP SEP con trol as necessary to display the A trace above the B trace 10 Rotate the B DELAY TIME POSITION control to set the rising portion of the Channel 2 pulse on the B trace to the same vertical reference point as used in...

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Page 89: ...or by contacting your local Tektronix Field Office or representative GENERAL INFORMATION STANDARD ACCESSORIES The following standard accessories are provided with each instrument Qty Description Part Number 2 1OX Probe packages P6121 1 Power Cord As Ordered 1 Operators Manual 070 4998 02 1 Users Reference Guide 070 5370 00 1 Front Panel Cover 200 2520 00 1 Accessory Pouch 016 0677 02 1 Fuse 3AG 2A...

Page 90: ... encountered Operating information for the Option 12 RS 232 C interface is given in the COMMUNICATION OPTION OPERATION subsection of this section Informa tion regarding RS 232 C interconnection cables is given in Appendix B of this manual OPTION 33 Option 33 the Travel Line option provides impact pro tection needed for rough industrial and service environments When the instrument is ordered with O...

Page 91: ... When either Communications option is installed in the 2230 DSO extra battery backed memory is also installed Waveforms stored in the extra memory may be protected from overwriting or deleting locked using the Advanced Functions menu Commands that are available via the communications interface can also lock that memory space Memory spaces may be also made permanent via the Communications interface...

Page 92: ...ower down interrupt to reset delay greater than or equal to 1 ms Table 7 2 Function Subsets Implemented Other Subsets Function Subset Capability States Omitted Other Requirements Required SH1 Source Handshake Complete Capability None None TS AH1 Acceptor Complete Capability None None None Handshake TS Talker Basic Talker Serial Poll None Include MLA ACDS SH1 and L3 Unaddress if MLA L3 Listener Bas...

Page 93: ...an be selected for message termination Follows program message unit syntax Used in Listen and Talk Not implemented to report all events on a single query Multiple events may be reported by using multiple queries Descriptors added for all options Extended by using other commands Not implemented Causes the instrument to return to a default set up condition Not implemented Not implemented Implemented...

Page 94: ...put GND Digital Ground DAV GND Digital Ground NRFD GND Digital Ground NDAC GND Digital Ground IFC GND Digital Ground SRQ GND Digital Ground ATN GND Digital Ground LOGIC Table 7 6 GPIB PARAMETERS Switch Switch Switch Section Position Function 1 Address selection 0 0 1 Binary weight 1 2 Address selection 0 0 1 Binary weight 2 3 Address selection 0 0 1 Binary weight 4 4 Address selection 0 0 1 Binary...

Page 95: ...r LF or EOI as the end of message termi nator and send Carriage Return CR followed by LF at the end of every message with EOI asserted concurrently with the LF TALK LISTEN are selectable MODE Four talk listen modes TALK ONLY mode allows the instrument to send data over the GPIB but not to listen Options and Accessories 2230 Operators LISTEN ONLY mode permits the instrument to receive data over the...

Page 96: ...Parameter Selec tion information UNLISTEN UNL AND UNTALK UNT When the UNL message is received the oscilloscope s listen function is placed in an idle unaddressed state In the idle state the instrument will not accept commands over the bus The talk function is placed in an idle state when the oscilloscope receives the UNT message In this state the instrument cannot transmit data via the interface b...

Page 97: ...communications between the controller and oscilloscope over the GPIB 1 Initialize the controller 2 Disable the service request handler until the pro gram is ready to handle them 3 Get the GPIB address of the oscilloscope Options and Accessories 2230 Operators 4 Enable the service request handler 5 Get the command to send to the oscilloscope 6 Send the command to the oscilloscope 7 Check for a resp...

Page 98: ...ect parity one selects the termi nator and two are for printer plotter selection The function of each switch section is shown in Table 7 11 NOTE Do not hook up external devices to the DTE connec tor and the DCE connector at the same time 7 10 Table 7 7 Specific Format Choices for Option 12 Format Parameter Choice Made Format Characters Not transmitted ignored on reception Message Terminator Either...

Page 99: ...on when carrier is detected SRQ indicator is on only when a status byte is sent PLOT indicator is on when acquistions are locked out during a waveform plot A ten section switch sets the instruments s baud rate data parity type message terminator and printer plotter selections Switch settings are read at power on only Pin 1 2a 3a 4 5 6 7a Table 7 9 RS 232 C DTE Connector Signal Name Function Intern...

Page 100: ...if RQS is off but the SRQ indicator does not indicate that a status byte is pend ing In this case the event code must be queried EVEnt to find out if an event has happened The ADDR indicator is on when a carrier is detected With no devices connected to either the DTE port or the DCE port the ADDR indicator will be on If an RS 232 C DCE device is connected to the DCE port the carrier will also be o...

Page 101: ...and ThinkJet are trademarks of Hewlett Packard Company Epson is a trademark of Epson Corporation Options and Accessories 2230 Operators Table 7 12 Baud Rate Switch Position Baud Rate 4321 0000 50 0001 75 0 0 1 0 110 0 0 1 1 134 5 0 1 0 0 150 0 1 0 1 300 0 1 1 0 600 0 1 1 1 1200 1 0 0 0 1800 1 0 0 1 2000 1 0 1 0 2400 1 0 1 1 3600 1 1 0 0 4800 1 1 0 1 7200 1 1 1 0 9600 1 1 1 1 Off Line Section 5 of ...

Page 102: ...ly one command in each message line to the oscilloscope 7 14 When CR normal mode is selected as the terminator the instrument will Accept only CR as the line terminator Send CR as the last byte of a message When CR LF is selected as the terminator the instru ment will Accept either CR LF or LF only as the line terminator Send CR LF carriage return followed by line feed at the end of every message ...

Page 103: ... answered Device dependent commands that require an instrument operating mode change to be made cause an execution error and a service request will be generated if ROS is on REMOTE ON REMOTE ln this state the oscilloscope executes all commands sent to it Remote controllable front panel indicators and CRT readouts are updated as commands are carried out There is no local lockout LLO Changing any op...

Page 104: ...ler s program is written to properly handle them A user may also want the controller routine to be able to recognize and handle the other events requiring service These events are identified in Tables 7 34 and 7 35 at the back of this section The following general steps are required to handle ser vice requests from the oscilloscope 1 Watch for an asynchronous service request status byte This is th...

Page 105: ...ed in a Tektronix Codes and Formats Standard The com mand words were chosen to be as understandable as pos sible while still allowing a user familiar with the commands to reduce the number of key strokes needed and still have the command unambiguous Syntax is also standardized to make the commands easier to learn In the Command tables found at the end of this section headers and arguments are list...

Page 106: ... u 5 15 21 25 37 35 53 45 69 55 6 F V V 6 16 22 26 38 36 54 46 70 56 rh 7 G w 7 17 23 27 39 37 55 47 71 57 8 H X 8 18 24 28 40 38 56 48 72 58 9 I y 9 19 25 29 41 39 57 49 73 59 J z 10 1A 26 2A 42 3A 58 4A 74 5A K 11 18 27 2B 43 3B 59 4B 75 5B L 12 1C 28 2C 44 3C 60 4C 76 5C M 13 10 29 20 45 30 61 40 77 50 Hz N I 14 1E 30 2E 46 3E 62 4E 78 5E 15 I 0 1F 31 2F 47 3F 63 4F 79 5F 1 1 1 1 1 0 1 LOWERCAS...

Page 107: ... 23 147 7 167 23 g 1 1 1 BEL ETB 7 G w g w 7 7 17 23 27 39 37 55 47 71 57 87 67 103 77 119 10 GET 30 SPE 50 8 70 24 110 8 130 24 150 8 170 24 1 g Jr g BS CAN 8 H X h X 8 8 18 24 28 40 38 56 48 72 58 88 68 104 78 120 11 TCT 31 SPD 51 9 71 25 111 9 131 25 151 9 171 25 1 g B 1 HT EM 9 I y i y 9 9 19 25 29 41 39 57 49 73 59 89 69 105 79 121 12 32 52 10 72 26 112 10 132 26 152 10 172 26 1 B 1 J LF SUB ...

Page 108: ...age it also asserts EOI concurrently with the last byte of an output message With the LF setting the instrument interprets the LF character without EOI asserted or any data byte received with EOI asserted as the end of an input message it transmits a Carriage Return character followed by Line Feed LF with EOI asserted to terminate messages RS 232 C MESSAGE TERMINATOR RS 232 C messages from the osc...

Page 109: ...perators A typical response to the preamble query for an X Y acquisition is WFM WFl ACQ XY 0 2V DC 50 0mV DC 1 0µS SAMPLE CRV 4 NR P 2048 PT O 216 PT F XY XMU 8 0E 3 XOF 0 XUN S XIN 20 0E 9 YMU 2 0E 3 YOF 0 YUN V ENC BIN BN F RP BYT 1 BIT 8 CRV CHK These replies are single line messages that end with the selected message terminator CR or CR LF With the GPIB interface EOI end or identify is also se...

Page 110: ...Table 7 18 illustrates the data transferred for a 4096 point 16 bit averaged binary encoded waveform Hexadecimal Encoding With HEXadecimal waveform data encoding characters representing an 8 bit or 16 bit data point are sent in a fixed ASCII hexadecimal format There are no delimiters commas between data points Data format is very similar to BINary format with the following exceptions 7 22 Table 7 ...

Page 111: ...I format the curve data transfer is represented as CURVE space data data data data terminator Options and Accessories 2230 Operators Table 7 19 Typical 8 Bit Hexadecimal Encoded Waveform Data Byte Contents Decimal 1 C 67 2 u 85 3 R 82 4 V 86 5 E 69 6 SP 32 7 35 8 H 72 9 Bin Count 49 MS 4 bits 10 48 11 48 12 Bin Count 49 LS 4 bits 13 1st Pt MS 4 bits d1H 14 1st Pt LS 4 bits d1L 15 2nd Pt MS 4 bits ...

Page 112: ...ntents Decimal 1 Asserted 1 C 67 0 2 u 85 0 3 R 82 0 4 V 86 0 5 E 69 0 6 SP 32 0 7 Pt1001a d100 1 0 8 Pt101a d101 0 9 Pt11a d11 0 10 44b 0 0 0 0 XXX Pt1004096a d 100 4096 0 XXX Pt104096 d 10 4o96 0 XXX Pt14096a d 1 4096 0 xxxc CR 13 0 XXXd LF 10 1 8 Each value sent may consist of from 1 to 3 characters The notation Pt100 means the hundreds digit and Pt10 means the tens digit which may or may not b...

Page 113: ...d operation With GPIB one or more arguments separated by com mas may be given in a query to request only the information wanted rather than sending separate commands for each query An example of this type of command is as shown CH1 VOLts COUpling With RS 232 C program your controller routines to send only one command at a time with single arguments of the form Options and Accessories 2230 Operator...

Page 114: ...nuation factor The value returned is a NR3 number For example if the VOLTS DIV setting is 50 mV the value returned is CH1 VOL 5 0E 2 An execution warning is generated if the VOLTS DIV CAL knob is not in the detent calibrated position Query only Returns the present CH1 input coupling COU AC GND or DC Queries for CH2 the same as for CH1 Query only Returns CH2 INV ON or OFF Query only Returns the ver...

Page 115: ...g of either S or DIV that corresponds to the DELAy VALue units as DELA UNl S or DIV The units are DIV when the SEC DIV knob is set to EXT CLK Returns all present horizontal settings as appropriate for the type of instrument Returns an NR3 value that represents the present A SEC DIV setting in the form HOR ASE NR3 The value returned is zero when the SEC DIV knob is set to EXT CLK Returns an NR3 val...

Page 116: ...ument Rearms a completed single sweep An execution error is generated if the instrument is not in SGL SWP mode and an execution warning is generated if the single sweep is already armed With OPC ON a service request status byte for operation complete is generated when the single sweep occurs Returns the state of the SGL SWP trigger mode as SGL ARM or DON when SGL SWP trigger mode is on If SGL SWP ...

Page 117: ...layed cursors to acquisition waveform Attaches the displayed cursors to the named reference waveform If the named reference is not displayed the command is ignored No warning is issued for directing the cursors to an undisplayed reference Attaches the displayed cursors to REF4 No warning is issued for directing the cursors to REF4 if it is not displayed but an execution error service request is ge...

Page 118: ...wo cursors with the measurement units in the form DELTAT VAL 1 180E 3 UNl SEC The measurement units are returned in DIVisions if the SEC DIV setting is EXT CLK Returns the cursor time difference only in the form DELTAT VAL NR3 Time difference is returned even when the readout is in frequency units for 1 iit measurements Returns the time measurement units only in the form DELTAT UNl S or DIV See th...

Page 119: ...xceed the display memory area Stops a plot in progress and returns to the previous mode PLOt ABOrt is the only command or query that the oscilloscope responds to during a plot PLOt ABOrt turns off the AUTo argument Turns the AUTo plot mode ON or OFF If AUTo is ON each waveform is plotted after it is acquired The graticule will be plotted once in AUTo if GRAt is ON Sets the output data format for t...

Page 120: ...ition type and SEC DIV setting Selects the named mode for the SEC DIV settings for 5 µs div and 10 µs div Selects the SAMple mode for the acquisitions made at 5 µs div and 10 µs div This is the default mode and will be selected if the mode argument is omitted Selects the ACCpeak or AVErage mode for acquisitions made at 0 02 ms div to 50 ms div Selects the PEAkdet or SAMple mode for acquisitions ma...

Page 121: ...rigger point in the waveform record The range of the NR1 number depends on the record length and the selection of pre or post trigger In pretrigger the NR1 range is 4 to 512 for 1 K records and 16 to 2048 for 4 K records In post trigger the range is from 512 to 1020 for 1 K records and 2048 to 4080 for 4 K records The resolution of NR1 is 4 counts ALL ACQuisition VECtors ON or OFF Turns point to p...

Page 122: ...E or POST for the present ACQuisition Trigger setting in the following form ACQ TRIGM PRE or POST Returns the present state of the STORE NON STORE button in the form STOA ON or OFF Table 7 28 Save and Recall Reference Commands Description Selects the acquisition as the source for the waveform data to be saved into one of the numbered reference memories by the SAVeref command ACQ is the default arg...

Page 123: ...REF A Z EMPTY The EMPTY command erases the named reference if it is not protected see REFProt command The lettered references may not be displayed directly they must be moved to a numbered save reference memory REF1 REF4 2230 REFProt REF A Z LOCked These commands control the write protection of the 2230 nonvolatile reference _ PERM or memories REFA REFZ LOCked and PERM disable further storage into...

Page 124: ...rence memory location as ON OFF or EMPTY ALL REFDisp REF4 Returns the status of REF4 as ON OFF or EMPTY For the 221 0 and 2221 instruments the default argument of REF4 is not needed ALL REFFrom Query returns the selected source of waveform data for the SAVeref command The reply will be ACQ for the 2220 and 2221 for the 2230 it may be from ACQ or any REFerence from REF1 REF4 and REFA REFZ 2230 REFO...

Page 125: ...he SAV command for those instruments 2230 SAVeref REF A Z Command only Saves the waveform selected by the REFFrom command into the named reference REFA REFZ Reference waveforms stored as 4 K records cannot be moved as 1 K records into REF1 REF3 to be either displayed or tranmitted 4 K records must be moved into REF4 2230 SAVeref REF 1 3 Command only Saves the waveform selected by the REFFrom comma...

Page 126: ...ct the source of the waveform data The data sent or received is in the form CURVE data where the data is encoded for HEX BINary or ASCii in the following form byte count binary data checksum for BIN H byte count hex data checksum for HEX or ascii data for ASCii encoding With ASCii format each data value is separated by a comma Selects the channel of a waveform set from which CURve WAVfrm or WFMpre...

Page 127: ...wer on REF1 is selected There is no default selection or REF3 ALL DATa TARget REF4 Selects REF4 as the reference memory to receive data sent with a CURve or WFMpre command This is the only selection for the 2220 and 2221 For the 2230 REF4 must be selected as the data target to transfer in a 4 K waveform ALL DATa Returns the selection of data source target channel and encoding The short form of the...

Page 128: ...NCdg operate identically Data points are represented as unsigned integers in any of the encoding formats ALL WFMpre ALL WFMpre WFld 7 40 Returns the waveform identification string as with the WFMpre WFld query plus the value for all the waveform preamble arguments The short form of the return is WFM WFI identification string NR P 2048 PT O 256 PT F ENV XMU 1 0E 3 XOF 0 XUN S XIN 10 0E 6 YMU 8 0E 3...

Page 129: ...kdet ON Rec 1 1 ACCpeak ON Rec 2 2 SAMple NA Rec 2 2 AVErage NA Rec 2 2 PEAkdet ON Rec 2 2 ACCpeak ON Rec 2 1 PEAkdet OFF Rec 2 1 ACCpeak OFF Rec 4 2 PEAkdet OFF Rec 4 2 ACCpeak OFF For example if the number of channels is two and the acquisition is peak detect with smoothing off the number of points for a waveform in a 4 Kbyte record is 4096 divided by 4 1024 points NR1 is the trigger position re...

Page 130: ...mate SEC DIV setting the new curve data is not accepted and a command argument error service request is sent if ROS is ON The queried XINcr value of NR3 is set equal to 1 0 1E 0 if it is unknown as is the case for EXT CLK ALL WFMpre YUNits V or DIVs Indicates the units of YMUlt When the CAL knob of the DATa CHAnnel is not in the detent position the DIVs argument is returned DIVs is always returned...

Page 131: ...for AVErage mode only one byte in other modes If two bytes are sent the most significant byte is sent first In HEX format each data point is represented by two ASCII encoded hex characters The data points consist of either 8 or 16 bits NOTE The least significant bits of a 16 bit waveform may or may not be valid depending on the number of acquisitions averaged The CHKsmO argument indicates that the...

Page 132: ...s its state ON or OFF Returns the oscilloscope identification string in the form ID TEK 2230 V81 1 VERS 09 The instrument type and version numbers will be reported as appropriate for the instrument queried Returns a list of all the valid command headers available in the instrument queried All the valid characters of the commands are returned the short form of the commands LONG OFF are in capital l...

Page 133: ... generate a service request The power on state of OPC is OFF When ON the oscilloscope sends a service request SRO when it has an event to report When OFF event codes of different priority still accumulate and may be retrieved with an EVEnt query but the reply to STAtus will be a 0 The power on and default states of ROS are ON Returns an NR1 value that is the code number for oldest service request ...

Page 134: ...eset the message processor Enables ON or disables OFF setting of remote controllable oscilloscope states An execution error service request is sent if a control command is sent with REM OFF REM returns the present state ON or OFF Sets the number of stop bits used in transferring character codes The usual selection is 1 though some printers require two stop bits at certain baud rate settings STOP i...

Page 135: ...d a command that it cannot understand Execution Error 0R1X 0010 34 50 98 114 The instrument received a command that it cannot execute This is caused by either out of range arguments or settings that conflict Internal Error 0R1X 0011 35 51 99 115 The instrument detected a hardware condition or a firmware problem that prevents operation Power On 010X 0001 1 17 65 81 Instrument power was turned on Op...

Page 136: ...dupli cate events or more than one event of the same priority level Each event is automatically cleared when its status byte or event code is reported The Device Clear DCL interface message may be used to clear all events except the power on event Querying EVEnt until the return is EVE O clears all pending status bytes and there is no power on event With ROS set OFF all service requests are preven...

Page 137: ...f range command ignored Group execute trigger ignored Illegal command Integer overflow Input buffer overflow Invalid waveform preamble Invalid instrument state GPIB Option 10 command not allowed RS 232 C Option 12 command not allowed Command not allowed on 2220 or 2221 Command not allowed on 2230 Cannot execute command with RQS OFF Reference memory busy with local front panel command Reference mem...

Page 138: ...rier lost End of acquisition OPC End of plot OPC Diagnostics test complete OPC Execution Warnings Single sweep is already armed No ground dot measurement available Invalid probe code or identify Query not valid for current instrument state Requested setting is out of detent uncalibrated MESsage display buffer is full Waveform preamble is incorrect has been corrected Waveform transfer ended abnorma...

Page 139: ...s a complete list of the equipment required to accomplish the Performance Check Procedure Test equipment specifications described in Table A 1 are the minimum necessary to pro vide accurate results Therefore equipment used must meet or exceed the listed specifications Detailed operating instructions for test equipment are not given in this pro cedure If more operating information is required refer...

Page 140: ...ow frequency trigger TEKTRONIX SG 502 Generator amplitude 300 mV Output checks Oscillator a impedance 600 n Reference fre quency constant within 0 3 dB of reference frequency as output fre quency changes 5 Pulse Generator Repetition rate 1 kHz Output ampli External clock and TEKTRONIX PG 501 tude 5 V storage checks Pulse Generator a 6 Digital Voltmeter Range 0 to 140 V De voltage accu Power supply...

Page 141: ...l 1 Check Timing Accuracy and Linearity A 12 2 Check Store Differential and Cursor Time Difference Accuracy A 13 Appendix A 2230 Operators Page 3 Check Variable Range and Sweep Separation A 14 4 Check Delay Time Differential Accuracy A 14 5 Check Delay Jitter A 15 6 Check Position Range A 15 7 Check Store Expansion Range A 15 8 Check 4K to 1K Display Compress A 16 9 Check Non Store Sweep Length A ...

Page 142: ...button in WAVEFORM REFERENCE button in Dual Input Coupler Item 8 50 Q BNC Termination Item 10 1OX Attenuator Item 12 PROCEDURE STEPS 1 Check Deflection Accuracy and Variable Range a Connect the standard amplitude signal from the Calibration Generator via a 50 Q cable to the CH 1 OR X input connector b CHECK Deflection accuracy is within the limits given in Table A 2 for each CH 1 VOLTS DIV switch ...

Page 143: ... 0 510 V 0 2 V 1 V 4 90 to 5 10 0 980 to 1 020 V 0 5 V 2V 3 92 to 4 08 1 960 to 2 040 V 1 V 5V 4 90 to 5 10 4 90 to 5 10 V 2V 10 V 4 90 to 5 10 9 80 to 10 20 V 5V 20 V 3 92 to 4 08 19 60 to 20 40 V Appendix A 2230 Operators d Move the cable from the CH 2 OR Y input connector to the CH 1 OR X input connector set the VERTICAL MODE switch to CH 1 e Repeat parts b and c using the Channel 1 controls 3 ...

Page 144: ...ost vertical graticule line c Set STORE NON STORE switch to STORE button in d CHECK Trace remains within 0 5 division of the center horizontal graticule line and the trace start is within 0 5 division of the left vertical graticule line A 6 e Set VERTICAL MODE STORE NON STORE CH 2 NON STORE f Repeat parts b through d for Channel 2 trace g Position the trace 0 5 division below the top horizon tal g...

Page 145: ...button in CONTINUE button out e Allow acquisition cycle to complete and press in the SAVE CONTINUE button to SAVE button in f CHECK Display aberrations are within 4 0 2 divi sion or less Appendix A 2230 Operators g Repeat part f for each of the following VOLTS DIV switch settings 5 mV through 0 5 V Adjust the generator output and attach or remove the 1OX attenuator as neces sary to maintain a 5 di...

Page 146: ...isplay will accumulate and store g CHECK Display amplitude is 4 2 divisions or greater h Set the VERTICAL MODE switch to BOTH and ALT i Repeat parts f and g A 8 10 Check Single Sweep Sample Acquisition a Set VERTICAL MODE A SEC DIV X10 Magnifier A TRIGGER Mode A BINT SAVE CONTINUE 1K 4K CH 1 5 µS Off knob in NORM CH 1 CONTINUE button out 1K button in b Set the generator to produce a 50 kHz 6 divis...

Page 147: ...ch to CH 1 m Set the generator to produce a 50 MHz 6 division display n Set the VERTICAL MODE switch to BOTH o CHECK Display amplitude is 0 6 division or less Appendix A 2230 Operators p Disconnect the test equipment from the instrument 13 Check Non Store and Store Channel Isolation a Set VERTICAL MODE VOLTS DIV both VOLTS DIV Variable both INVERT Channel 1 AC GND DC Channel 2 AC GND DC A SEC DIV ...

Page 148: ...on i Move the cable from the CH 1 OR X input connector to the CH 2 OR Y input connector j Set CH 2 VOLTS DIV Channel 1 AC GND DC Channel 2 AC GND DC A 10 0 1 V GND AC k Use the Channel 2 POSITION control to center the display I Set CH 2 VOLTS DIV switch to 50 mV for a 10 division display m Repeat parts f through h for Channel 1 15 Check Store Pulse Width Amplitude a Set VERTICAL MODE A SEC DIV STO...

Page 149: ...lse duration 5 division display n Repeat parts c and d Appendix A 2230 Operators o Disconnect the test equipment from the instrument 16 Check Average Mode a Set the WAVEFORM REFERENCE MENU SELECT switch to MENU SELECT button out b Use the Menu controls to select SWP LIMIT C CHECK The SWP LIMIT is adjustable from 1 to 100 000 or NO LIMIT by rotating the CURSORS control NOTE Earlier instrument firmw...

Page 150: ...ELECT button in A 12 50 Q BNC Cable Item 7 50 Q BNC Termination Item 10 PROCEDURE STEPS 1 Check Timing Accuracy and Linearity a Connect the time mark generator output via a 50 Q cable and a 50 Q termination to the CH 1 OR X input connector b Select 50 ns time markers from the time marker generator c Use the Channel 1 POSITION control to center the display vertically Adjust the A TRIGGER LEVEL cont...

Page 151: ...ONTAL MODE A SEC DIV B SEC DIV X10 Magnifier B 0 1 µS 0 05 µS Off knob in m Repeat parts b through k for the B Sweep Keep the A SEC DIV switch one setting slower than the B SEC DIV switch 2 Check Store Differential and Cursor Time Difference Accuracy a Set Channel 1 AC GND DC HORIZONTAL MODE A SEC DIV X10 Magnifier STORE NON STORE 1K 4K GND A 0 1 ms Off knob in STORE button in 1K button in b Use t...

Page 152: ...ime markers are 1 division or less apart A 14 d Set Channel 1 AC GND DC SEC DIV Variable HORIZONTAL MODE GND CAL detent BOTH e Use the Channel 1 POSITION control to set the A Sweep at the center horizontal graticule line f CHECK The B Sweep can be positioned more than 3 5 divisions above and below the A Sweep when the A B SWP SEP control is rotated fully clockwise and counter clockwise respectivel...

Page 153: ...the graticule area for each major dial division and CHECK that the jitter on the leading edge of the time marker does not exceed 2 divisions Disregard slow drift Appendix A 2230 Operators 6 Check Position Range a Set HORIZONTAL MODE A A SEC DIV 10 µ S b Select 10 µ s time markers from the time mark generator c CHECK Start of the sweep can be positioned to the right of the center vertical graticule...

Page 154: ...nect the test equipment from the instrument A 16 10 Check X Gain a Set X Y CH 1 VOLTS DIV Horizontal POSITION On button in 10 mV Midrange b Connect the standard amplitude signal from the Calibration Generator via a 50 n cable to the CH 1 OR X input connector c Set the generator to produce a 50 mV signal d Use the Channel 2 POSITION and Horizontal POSI TION controls to center the display e CHECK Di...

Page 155: ...button out POST TRIG button out SCAN button out 4K button out POSITION CURS button in WAVEFORM REFERENCE button in PROCEDURE STEPS 1 Check Internal A and B Triggering a Connect the leveled sine wave generator output via a 50 n cable and a 50 Q termination to the CH 1 OR X input connector B DELAY TIME POSITION Fully counterclockwise b Set the generator to produce a 10 MHz 3 5 division display B TRI...

Page 156: ...erator to produce a 100 MHz 1 5 division display r Repeat parts d through f s Set VERTICAL MODE HORIZONTAL MODE A BINT CH 2 A CH 2 t Move the cable from the CH 1 OR X input connector to the CH 2 OR Y input connector u Repeat parts d through f v Disconnect the test equipment from the instrument 2 Check HF Reject A Triggering a Set VERTICAL MODE VOLTS DIV both HORIZONTAL MODE A SEC DIV X10 Magnifier...

Page 157: ...ator output voltage to 150 mV and the frequency to 100 MHz i Repeat part d Appendix A 2230 Operators 4 Check External Trigger Ranges a Set CH 1 VOLTS DIV A SEC DIV X1 OMagnifier A TRIGGER SLOPE A TRIGGER Mode 0 5 V 20 µS Off knob in OUT NORM b Set the generator to produce a 50 kHz 6 4 division display c CHECK Display is triggered along the entire posi tive slope of the waveform as the A TRIGGER LE...

Page 158: ...graticule line below the Menu f Set the PRETRIG POST TRIG switch to PRETRIG button in A 20 g CHECK The A TRIG POS default number is 3584 and the trigger point T appears near the 9th vertical grat icule line below the Menu h Set the 1K 4K switch to 1K button in i CHECK The A TRIG POS default number is 896 and the trigger point T appears near the 9th vertical grat icule line below the Menu j Set the...

Page 159: ...OSITION CURS button in WAVEFORM REFERENCE button in BNC T Connector Item 9 50 n BNC Termination Item 10 BNC Male to Tip Plug Item 13 1OX Probe provided with instrument PROCEDURE STEPS 1 Check External Z Axis Operation a Connect the leveled sine wave generator output via a 50 n cable and a T connector to the CH 1 OR X input connector Then connect a 50 ncable and a 50 ntermina tion from the T connec...

Page 160: ...0 V scale c Set the WAVEFORM REFERENCE MENU SELECT switch to MENU SELECT button out d Use the Menu controls to select PLOT and then ON for GRATICULE NOTE The next menu selection is only valid if the instru ment contains one of the communication options e Use the Menu controls to select PLOT and then XY for FORMAT f Use the Menu controls to select PLOT START g Press in momentarily the CURSORS butto...

Page 161: ... this is not always the case A DCE device that conforms to the standard has a female RS 232 C connector An example of a DCE device is a modem DETERMINING DEVICE TYPE When interconnecting your 2200 Family oscilloscope to other RS 232 C devices you must determine the device type and the connector type From that information the interconnection cable you need can be determined NOTE You cannot reliably...

Page 162: ... wiring schematic RS 232 C DTE DEVICE 1 PIN 1 2 3 4 5 6 7 8 20 3 A Gender Changer has straight through connec tions that may be used to convert a non standard port connector a DTE device with a female connector or a DCE device with a male connector for connection with a standard RS 232 C cable Gender changers come as male to male and female to female The male to male changer is the most used The g...

Page 163: ...n one end and a female connector on the other 2 Null modem cables that may be customized to make the necessary connector matings These come as male to female female to female and male to male 3 Gender changers are straight through cables with either male connectors or female connectors on both ends Table B 1 Cable Type Identification Type of Interconnection DTE male to DCE female DTE female to DCE...

Page 164: ...CHANGER GENDER CHANGER 1 2 7 2 3 7 3 4 7 4 5 7 5 6 7 6 7 7 7 8 7 8 20 7 20 FEMALE to FEMALE MALE to MALE NULL MODEM NULL MODEM 1 7 1 s X X s 2 3 4 7 4 5 7 5 6 7 6 7 7 7 8 7 8 20 7 20 FEMALE to MALE FEMALE to MALE 1 7 NULL MODEM NULL MODEM 1 2 s X ss X 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 6530 12 Figure 8 2 Type A Connections DTE male to DCE female B 4 ...

Page 165: ...rs MALE to MALE STRAIGHT THROUGH GENDER CHANGER CABLE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 MALE to MALE GENDER CHANGER 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 6530 13 Figure B 3 Type A1 Connections DTE female to DCE female B 5 ...

Page 166: ... STRAIGHT THROUGH FEMALE to FEMALE CABLE GENDER CHANGER 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 FEMALE to FEMALE GENDER CHANGER 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 6530 14 Figure 8 4 Type A2 Connections DTE male to DCE male B 6 ...

Page 167: ...e to communicate by externally reversing the data and logic lines as shown in the figures A gender change is needed for Type B and Type B2 connections For Type B1 con nections a gender change is needed only to match up to the null modem cable connectors Gender changing can be done with the null modem cable if it is made with the correct gender connectors for the application FEMALE to FEMALE GENDER...

Page 168: ... MALE FEMALE to FEMALE NULL MODEM GENDER CHANGER 1 1 2 X 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 MALE to MALE GENDER CHANGER 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 MALE to FEMALE STRAIGHT THROUGH 1 NULL MODEM CABLE 1 X 2 3 4 4 5 5 6 6 7 7 s 8 20 20 6530 16 Figure B 6 Type B1 Connections DTE female to DTE male and DCE female to DCE male B 8 ...

Page 169: ...0 1 2 3 4 5 6 7 8 20 MALE to MALE GENDER CHANGER FEMALE to MALE NULL MODEM X Appendix B 2230 Operators f 1 t 2 3 f 4 f 5 f 6 f 7 f 8 f 20 1 2 3 4 5 6 7 8 20 6530 17 Figure 8 7 Type 82 Connections DTE female to DTE female and DCE female to DCE female B 9 ...

Page 170: ...nter plotter hookup The PLOt FORmat commands described in the Command Tables of B 10 Section 7 in this manual may be used to select the data format when a controller is used to control the communications NOTE With Option 12 a controller and an RS 232 plotter can not be connected to the oscilloscope at the same time An X Y plotter may be connected to the X Y plotter output and used in conjunction w...

Page 171: ...Baud Rate Parity ON J Parity CR LF 9 JPrinter Plotter 10 Format 0 1 Parity Settings Printer Plotter Format Baud Rate Settings S W_IT_C_H _ ___ S4 S3 S2 S1 L__J 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 50 75 110 5 7s_w_1_r_cH_s_s___ ll _P_A_R_n_v _ _ ll 5 _1 W I T cH s_g ___ l_I_F_ _R_MA_T_ 1 0 1 0 0 1 1 0 134 5 150 300 600 1200 1800 2000 2400 3600 4800 0 0 1 1 0 1 0 ...

Page 172: ...ettings SWITCH S4 S3 S2 S1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 BAUD External 16x clock 75 110 150 200 300 600 1200 2400 4800 9600 300 600 1200 2400 4000 Use two stop bits All others use one stop bit 6530 03 Figure B 10 HP 7470A and HP 7475A plotter RS 232 C switch settings B 12 1200 Baud 2200 FAMILY so OFF ...

Page 173: ...es are left in buffer until specified number of bytes are free Appendix B 2230 Operators Baud Rate Settings SWITCH IBAUD7 S4 S3 S2 S1 L___j 1 1 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 1 1 1 0 1 1 0 0 1 1 0 0 1 1 0 1 1 0 1 0 1 0 1 0 1 0 1 0 Self Test 9600 4800 2400 1800 1200 600 300 200 150 135 110 75 6530 05 Figure B 12 Epson FX Series printer RS 232 C switch settings 1200 Baud 2200 FAMILY so ...

Page 174: ...TCH S2 S3 0 0 0 1 1 0 1 1 1200 2400 19200 9600 Settings 11 PARITY NONE 8 b it ODD 7 bit EVEN 8 bit ONES 7 b it Figure 8 14 HP ThinkJet RS 232 C switch settings 1200 Baud 2200 FAMILY so OFF ON 10 ThinkJet 1 5 51 1 Selected side of switch 2400 Bau l 2200 FAMILY so OFF ON 10 ThinkJet a Don t care Figure B 15 Option 12 PARAMETERS switch settings for HP ThinkJet printer 6530 07 6530 08 ...

Page 175: ...1 0 ThinkJet 1 1 X Y 0 1 Address 31 off line LON and TON both ON off line Figure B 16 Option 10 GPIB Interface PARAMETERS switch 2200 FAMILY DS0 HC100 Plotter 10 8 _Selected side of switch 2200 FAMILY DSO 10 HP 7470A 7475A Plotter 7 1 IM 1 B Don t care 2200 FAMILY DSO ThinkJet Printer 10 7 1 fua 1111 I Figure B 17 Option 10 PARAMETERS switch settings for compatible GPIB printers plotters 6530 09 6...

Page 176: ... Address 31 Listen Always 1 0 1 0 HP ThinkJet Printer To GPIB Interface Listen Always Mode SRQ Enabled I 116 8 4 2 1 I I I I I I I I I I I I I I SRQ ___J Disabled HP GL GPIB Address Address 31 Listen Always 1 0 Tektronix HC100 Color Plotter To GPIB Centronics Interface Others Main board dip switch Centronics l S Funcs not used I I I I I I I I 1 I I I I I I I I 0 GPIB_ J J HP GL Std GPIB Address no...

Page 177: ...dling slows down the transfer rate At 2400 baud the oscilloscope s processor is usually ready to handle the incoming data before the buffer fills and it is not necessary to continually interrupt the data flow Q The operators manual states that multiple commands may be sent in one message line but sometimes errors are generated when I try this with Option 12 Why is that and what can I do about it A...

Page 178: ...re waveform record Repetitive Store Mode random equivalent time sampling depends on the probability of filling the A It is 2 mV division the same as in nonstore mode waveform record in a specified number of sweeps The more sweeps that are used to sample an input Can I compress expand or reposition the stored signal the more probable it is that the waveform Q record will be filled when the waveform...

Page 179: ...n mode trigger information and cursor readouts are all available in the 2221 and 2230 Vertical information except for Vertical Mode and cursor readouts are not available with the 2220 Q What is the 26 K non volatile memory supplied with the 2230 Communications option and what are its waveform storage capabilities A Memory space for 26 1 K waveforms or 6 4 K waveforms or any combination of waveform...

Page 180: ...me difference may be queried to determine the readout values Q Is delay time included in the 2230 waveform preamble B 20 A No The preamble does not indicate if the curve data was taken at an A or a B SEC DIV setting just what the SEC DIV setting is for that curve data Q Are the displayed intensified zones seen in a 2230 acquisition stored in either SAVE mode or in SAVE REF memory A Yes they are sa...

Page 181: ...s Aberrations NON STORE and STORE in Default Modes 2 mV div to 50 mV div 0 1 V div to 0 5 V div 1 V div and 2 V div 5 V div Performance Requirements 4 4 4 p p 3 or less at 25 C with cabinet installed 6 6 6 p p 5 or less at 25 C with cabinet installed 12 12 12 p p 10 or less at 25 C with cabinet installed 12 12 20 p p 10 10 20 p p at 25 C with cabinet installed Measured with a five division referen...

Page 182: ... ...

Page 183: ...M 66 8 6 2 Product 22 3 _ 0_O _P E R A T O R _S _____________ Manual Part No 07 0 4 9 9 8 0 2 _ DESCRIPTION Product Group 41 The Standard Test Probes for your instrument have been replaced with the P6109 Test Probes Please note this change in the Standard Accessories List in this manual Page 1 of 1 ...

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Page 185: ...J SECURED BY THE TWO END PANELS 2 POUCH CAN BE MOUNTED BY ARCHING THE POUCH SLIDING THE TWO ENDS UNDER THE REAR FRONT PANELS CSEE FIG 1 3 WHEN POUCH IS SECURED PROPERLY THE 4 SLOTS IN THE METAL POUCH PLATE WILL MATE WITH THE 4 KEYS INSIDE THE FRONT REAR PANELS CSEE FIG 3 ...

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Page 187: ...WIND POWER CORD TIGHT THEN POSITION MALE RECEPTICAL IN RECESSED AREA OF REAR PANEL 2200 SERIES POWER CORD WRAP ...

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