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GPIB Programming Guide - Steven M. Anlage Research Page

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1. user define CLEAR HO RESET CB008008 Figure D 1 IBASIC Menu Step Allows you to execute one program line at a time This is particularly useful for debugging Continue Resumes program execution from the point where it paused D 2 Softkeys Used for Instrument BASIC Operation Run Pause Stop Edit ASSIGN Hp4396 OUTPUT Hp4396 ENTER Hp4396 END GOTO LINE RECALL LINE END EDIT ON KEY LABELS CAT SAVE RE SAVE GET PURGE INITIALIZE MSI SCRATCH RENumber LIST COMMAND ENTRY Starts a program from its beginning Pauses program execution after the current program line is executed Stops program execution after the current line To restart the program press Run Enters into the EDIT mode Produces the command ASSIGN Hp4396 TO 800 at the cursor s current position Produces the command OUTPUT 0Hp4396 at the cursor s current position Produces the command ENTER 0Hp4396 at the cursor s current position Produces the command END Allows you to move the cursor to any line number or to a label After pressing GOTO LINE type a line number or a label and then press Return The cursor moves to the specified line or label Recalls the last deleted line Exits the edit
2. EENren Pago we MOO T AN do GB SWE An oso eee Fch h Upper adjacent Fen Fcent Feh_h channe frequency lt Fadj gt me Fadj gt Figure 11 3 Adjacent Channel Power Before running the program set up the measurement calibrate the analyzer and connect the signal to the input port 10 20 Figure 11 4 Adjacent Channel Power Calculation 30 40 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 50 Fadj 25000 Hz 60 Fs 16000 Hz 70 Rbw 100 Resolution bandwidth Hz 80 Nop 801 Number of measurement points 90 Fspan 80000 Frequency Span Hz 100 Avg 10 Averaging factor CLEAR SCREEN INPUT Enter carrier frequency Hz Fcent OUTPUT 0Hp4396 CENT Fcent OUTPUT 0Hp4396 SPAN Fspan OUTPUT Hp4396 BW Rbw OUTPUT 0Hp4396 AVERFACT Avg OUTPUT Hp4396 FMT NOISE SAUNIT DBM ATTAUTO ON AVER ON OUTPUT Hp4396 HOLD AVERREST INPUT Connect input port and press Enter Dum DISP MEASURING OUTPUT Hp4396 TRGS INT OUTPUT Hp4396 CLES OUTPUT GHp4396 SRE 4 ESNB 1 Figure 11 4 Sample Program Adjacent Channel Power Calculation 1 2 11 4 Using Application Programs 260 ON INTR 7 GOTO Sweep end When iBASIC is used 270 ENABLE INTR 7 2 change 7 to 8 280 OUTPUT 0Hp4396 NUMG Avg 290 Measuring GOTO Measuring 300 Sweep_end 310 DISP MEASUREMENT COMPLETE 320 DIM D 1 801
3. RBW 100 kHz VBW 100 kHz ATN 10 dB SWP 100 msec START O Hz STOP 100 MHz Figure 11 1 Harmonic Distortion in a Signal Using Application Programs 11 1 This program computes the total harmonic distortion THD as defined by the following equation V2 Vi THD vv A x 100 11 1 1 Where vi Fundamental V V The second harmonic V Va The third harmonic V THD takes into account the power in all the harmonics Because an infinite number of the harmonics cannot be measured a finite number will have to suffice Before running the program measure the signal and display the fundamental and harmonics to be computed on the analyzer display in the dBm format Figure 11 2 Total Harmonic Distortion Vf 1 ASSIGN Hp4396 TO 717 When iBASIC is used replace 717 to 800 OUTPUT Hp4396 CLES SRE 4 ESNB 96 ON INTR 7 GOTO Done When iBASIC is used ENABLE INTR 7 2 replace 7 to 8 OUTPUT 0Hp4396 STOP ENTER 0Hp4396 Fstop OUTPUT 0Hp4396 PRSMKRS OUTPUT Hp4396 MKR ON SEAM PEAK OUTPUT 0Hp4396 OUTPMKR ENTER Hp4396 Vf Vf 2 Ff Fundamental V SQR 107 V 10 05 Vf in V PRINT Fundamental Fr Ff I 2 S 0 LOOP Fh FfxI EXIT IF Fstop lt Fh OUTPUT 0Hp4396 DMKR TRAC MKRPRM Fh Fr 2 OUTPUT 0Hp4396 DMKR ON OUTPUT 0Hp4396 MKRPRM Fr OUTPUT 0Hp4396 PARS ON SEARSTR OUTPUT 0Hp4396 SEAM PEAK DMKR OFF OUTPUT 0Hp4396 OUTPMKR ENTER 0Hp4396 Vh Vh2 F
4. Description Range formatted date day month year string expression integer constant Literal letter case ignored integer constant a Example Commands PRINT DATE 21 MAY 1991 SET TIMEDATE DATE 1 Jan 1991 Days DATE 1 JAN 1991 DATE 11 NOV 1990 DIV m Semantics see drawing and text 1 to end of month JAN FEB MAR APR MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1900 to 2079 86400 Using a value from the DATE command as the argument for SET TIMEDATE will set the clock to midnight on the date specified The results from the DATE and TIME commands must be combined to set the date and time of day If the DATE command is used as an argument for SET TIMEDATE to set the clock the date must be in the range 1 Mar 1900 to 4 Aug 2079 Specifying an invalid date such as the thirty first of February will cause an error Leading blanks or non numeric characters are ignored ASCII spaces are recommended as delimiters between the day month and year However any non alphanumeric character except the negative sign may be used as the delimiter B 2 BASIC Commands Specific to 4396B DATES Keyboard Executable Yes Programmable Yes InanIF THEN Yes This command formats the number of seconds into a date DD MMM YYY seconds 271003 Item Description Range 4 623685256E 12 to 4 6534263350399E 13 seconds numeric expres
5. 2711097 delimiter seconds Item Description Range time of day string expression representing the time in 24 set drawing hour format hours literal 0 to 23 minutes literal 0 to 59 seconds literal default 0 O to 59 99 delimiter literal single character see text Example Commands Seconds TIME T SET TIME TIME 8 37 20 ON TIME TIME 12 10 GOSUB Lunch m Semantics This command returns a positive integer in the range 0 to 86399 equivalent to the number of seconds past midnight While any number of non numeric characters may be used as a delimiter a single colon is recommended Leading blanks and non numeric characters are ignored B 10 BASIC Commands Specific to 4396B TIMES Keyboard Executable Yes Programmable Yes InanIF THEN Yes This command converts the number of seconds past midnight into a string representing the time of day HH MM SS seconds 271008 Item Description Range seconds numeric expression truncated to the O to 86399 nearest second seconds past midnight a Example Commands DISP The time is TIME TIMEDATE PRINT TIME 45296 m Semantics TIMES takes the time in seconds and returns the time of day in the form HH MM SS where HH represents hours MM represents minutes and SS represents seconds A module 86400 is performed on the parameter before it is formatted as a time of day BASIC C
6. CHANGE YES NO CANCEL d 2 Press the desired softkey and DONE 3 CHANGE YES and NO softkey labels are displayed Press CHANGE YES to change the memory partition Press NO to cancel changing the memory partition 2 4 Introduction to the System Using the Keyboard What can the Keyboard be Used for The mini DIN keyboard can be used as follows m Performing calculations a Entering arguments to the active analyzer functions m Entering titles m Executing commands a Using softkeys The following simple operations show you how to use these functions Performing Calculations You can perform calculations while in any display allocation type except for ALL INSTRUMENT Let s try 1 Press the following key and softkeys MORE DISPLAY ALLOCATION ALL BASIC The screen is cleared and a cursor appears at the bottom left of screen 2 Type the following key from the keyboard 3 2 Enter The characters you enter are displayed at the current cursor position After pressing Enter the system responds with the following answer at the bottom of screen 6 For more information see Numeric Computation in the Instrument BASIC Programming Techniques of the Instrument BASIC Users Handbook Entering Arguments to the Active Analyzer Functions The numeric keys on the keyboard can be used to input the arguments for an active analyzer function the same as using the front panel keys Let
7. Interface register select code number C2711001 Item Description Range select code numeric expression 8 EXECUTE register 15 I O port register number numeric expression O to 800 Select code 8 0 I O port a Example Commands Ioport READIO 15 0 100 110 120 130 140 EXECUTE OUTPRESO Za READIO 8 0 Fa READIO 8 1 Zr READIO 8 2 Fr READIO 8 3 m Semantics The EXECUTE command stores the query command s return values in registers The READIO command reads a return value from one of these registers Return values are sequentially stored in registers O to 3 For example when EXECUTE OUTPURESO is executed four return values Za Fa Zr and Fr are stored in four registers register O to register 3 Za is stored in register 0 Fa in register 1 Zr in register 2 and Fr in register 3 To read a return value stored by the READIO command specify the appropriate register number For more information on EXECUTE command see the example in the EXECUTE command BASIC Commands Specific to 4396B B 7 SET TIME Keyboard Executable Yes Programmable Yes In an IF THEN Yes This command resets the time of day given by the real time clock SET TIME seconds 271005 Item Description Range 0 to 86399 99 numeric expression rounded to the nearest hundredth seconds a Example Commands SET TIME 0 SET TIME Hours 3600 Minutes 60
8. Figure D 4 Display Allocation The following table lists the number of lines and columns in the BASIC print area for each display allocation It also shows the keyboard input line status for each allocation When the keyboard input line is available you can execute BASIC commands from the keyboard Display Allocation BASIC Print Area Columns Lines Keyboard Input Line All Instrument 0 0 Half Instrument Half BASIC 62 12 ALL BASIC 62 24 BASIC Status o 0 not available available available available The analyzer can be connected to an external monitor For information on the recommended monitor see Chapter 9 of the Function Reference Run Light Indications U blank Program stopped can execute commands CONTINUE not allowed Program paused can execute commands CONTINUE is allowed BASIC program waiting for input from keyboard cannot execute commands This indication has two possible meanings m Program running CANNOT execute commands CONTINUE not allowed m System executing commanded entered from keyboard CANNOT enter commands Softkeys Used for Instrument BASIC Operation D 7 Index A ALL BASIC 2 3 ALL INSTRUMENT 2 3 arrow key v 0 2 Home C 2 9 C 2 O C 2 A 0 2 AUTOREC 8 1 AUTOST 8 1 auto start 8 1 B back space 5 2 Backspace 0 2 BASIC STATUS 2 3 built in flexible disk drive 9 2 C Caps 0 2 CAT 4 2 charac
9. CA e 6 2 6 4 Saving Trace data 2 40 A 6 3 6 5 Loading Trace Data o o a a a a 6 3 6 6 Transferring the Program to an External Controller on the External Controller 6 4 6 7 Sharing a Printer Program for External Controller 2 22 6 5 6 8 Sharing a Printer Program for Instrument BASIC 2022 6 5 6 9 Loading Instrument BASIC Programs Using Softkeys 2 2 4 6 7 7 1 Screen Structure cc 6 aa a a 7 1 7 2 RUN CONT Trigger Signal 2 2 7 3 A 1 Serial Number Plate 2 2 ee ee Ce A 2 C 1 mini DIN Keyboard a C 1 D 1 IBASIC Menu ww ww aa D 2 D 2 Memory Partition Menu aa e D 5 D 3 Display Allocation Menu aoaaa A D 6 D 4 Display Allocation 2 2 a a a e D 7 Tables A 1 Manual Changes by Serial Number 0 208084 A 1 A 2 Manual Changes by Firmware Version o a a a a a a ee A 1 B 1 GPIB Commands for EXECUTE aaa a a a a a B 4 Contents 4 Welcome to Instrument BASIC This guide will help you learn how to effectively use Instrument BASIC IBASIC of the 4396B Network Spectrum Impedance Analyzer It will help you to perform typical operations involving program creation editing and execution It will also show you how to save and recall programs and how to make the best use of the Instrument BASIC s front panel and keyboard interface If you are new to programming or to HP s dialect of BASIC take the time to read this g
10. 440 FOR I Nop TO 1 STEP 1 450 A P 1I P Nop 460 IF A lt 995 THEN Upper 470 NEXT I 480 Upper I2 I1 Figure 11 6 Sample Program Occupied Power Bandwidth Calculation 1 2 Using Application Programs 11 7 490 OUTPUT 0Hp4396 MKR ON 500 OUTPUT 0Hp4396 MKRP I1 510 OUTPUT Hp4396 DMKR ON 520 OUTPUT 0Hp4396 MKRP 12 530 OUTPUT 0Hp4396 OUTPMKR 540 ENTER 0Hp4396 Val Val2 Flh 550 PRINT Occupied bandwidth 560 PRINT Flh Hz 570 DISP PROGRAM FINISHED 580 END 590 600 SUB Power D P Rbw Nop Fspan 610 S 0 620 FOR I 1 TO Nop 630 S 107 DCI 10 Sin mW 640 P I S 650 NEXT I SUBEND Figure 11 6 Sample Program Occupied Power Bandwidth Calculation 2 2 Lines 40 to 80 set the measurement coefficient frequency span resolution bandwidth number of measurement points and averaging factor to typical values Lines 890 to 430 search from the left for the point where the power is 0 5 compared to the total power Lines 440 to 480 do the same search from the right Lines 490 to 540 display the marker and A marker on the 0 5 power point and read out the spacing of the markers Lines 600 to 660 subprogram Power perform a summation of the power at the measurement points This summation is done in the area of the center frequency Fch and the frequency span Fs The same equation 11 2 is used in the Adjacent Channel Power Calculation example 11 8 Using
11. FORMS Data Transfer Format 2 1 2 a A Sample Program To Get Measurement Trace Using IEEE 64 bit Floating Point Format For Instrument BASIC 2 a Sample Program To Modify Calibration Data 1 2 2 2 Data Arrays Data Processing and GPIB Command 2 2 2 Sample Program To Modify Error Corrected Data 2 2 Sample Program To Modify Trace Data 0 048 Sample Program To Observe Printing 0 0 Pass Control 2 2 a a Sample Program To Receive Control On Instrument BASIC cc 3 Sample Program To Run the Instrument BASIC Program From the External Controller On External Controller 2 2 2 ee ee en Sample Program To Transfer the Program to Instrument BASIC on External Controller 1 a a Sample Program To Load Instrument BASIC Program Array on External Controller 1 a a Sample Program Limit Test 1 2 0 0 2 00 004 Sample Program List Sweep 1 2 02 2048 re I O Port 2 a Sample Program Synchronization of a an External Handler with the Analyzer 8 Bit Data of OUTOT 2 1 a a a a a Sending Signal to an the External Handler 2048 Reading Signal from the External Handler 2 2 Harmonic Distortion ina Signal 2 ee a Sample Program Total Harmonic Distortion THD 1 2 2 2 Adjacent Channel Power 2 1 1 we ee a Sample Program A
12. Enter power level dBm Table I 4 INPUT Enter resolution band width Hz Table 1 5 PRINT I TAB 11 Table I 1 TAB 20 Table 1 2 TAB 30 Table 1 3 PRINT TAB 40 Table I 4 TAB 50 Table 1 5 RETURN END Figure 9 1 Sample Program List Sweep 2 2 Edit List Table 70 CLEAR SCREEN 80 PRINT Segment TAB 9 Center Hz TAB 20 Span Hz TAB 30 Points 90 PRINT TAB 39 Power dBm TAB 50 RBWCHz 100 110 DIM Table 1 31 1 5 120 INPUT Enter number of segments lt 31 Numb 130 FOR I 1 TO Numb 140 GOSUB Loadlist 150 NEXT I 160 170 LOOP 180 INPUT Do you want to edit Y N An 190 EXIT IF An N OR An n 200 INPUT Enter segment number lt 31 I 210 IF Numb lt I THEN Numb I 220 GOSUB Loadlist 230 END LOOP 500 Loadlist 510 INPUT Enter center frequency Hz Table I 1 520 INPUT Enter frequency span Hz Table I 2 530 INPUT Enter number of points Table I 3 540 INPUT Enter power level dBm Table I 4 550 INPUT Enter resolution band width Hz Table 1 5 560 PRINT I TAB 11 Table 1 1 TAB 20 Table 1 2 TAB 30 Table 1 3 570 PRINT TAB 40 Table I 4 TAB 5O Table I 5 580 RETURN Lines 70 to 90 print the list table heads on the BASIC screen 9 2 Using the List Sweep Function Line 110 defines the table array Table 1 31 1 5 used to hold the list values It contains the center frequency frequency span number of points power level and resolution band width
13. Hp4396 FORM3 change 717 to 800 OUTPUT Hp4396 QUTPDTRC ENTER Dt USING 8A Head ENTER Dt Dat ENTER Dt USING 1A Dum When iBASIC is used delete this line Modify Trace Data Restore Trace Data OUTPUT 0Hp4396 INPUDTRC OUTPUT ODt USING 8A Head OUTPUT ODt Dat END ASSIGN Dt TO END Figure 5 4 Sample Program To Modify Trace Data This program measures the DUT reads the obtained data and restores the data into the analyzer For details on how to read the data array see Chapter 4 For details on how to modify the trace on the display see the To Modify Calibration Data example 5 8 Writing Data Arrays to the Analyzer Read Trace Data 230 240 250 260 270 280 290 300 310 320 330 Read Trace Data DIM Dat 1 801 1 2 When iBASIC is used change 801 to 802 OUTPUT Hp4396 POIN ENTER Hp4396 Nop When iBASIC is used delete these lines REDIM Dat 1 Nop 1 2 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used OUTPUT Hp4396 FORM3 change 717 to 800 OUTPUT Hp4396 OUTPDTRC ENTER Dt USING 84A Head ENTER Dt Dat ENTER Dt USING 1A Dum When iBASIC is used delete this line The OUTPDTRC command line 300 retrieves trace data in the analyzer For details on data transfer see Chapter 4 Restore Modified Trace Data 370 380 390 400 Restore Trace Data OUTPUT 0Hp4396 INPUDTRC OUTPUT ODt US
14. is transferred to the analyzer What are other commands are used to set the list values e When setting segment frequencies instead of setting the center span definition by using the CENT parameter SPAN parameter commands you can define start stop frequency by using 1 STAR parameter STOP parameter commands 2 MKRSTAR MKRSTOP commands Maker to start stop e When setting the IF band width with the analyzer in network analyzer mode use the BW parameter command Using the List Sweep Function 9 3 10 Using the Analyzer s I O Port This chapter describes how to use the I O port of the analyzer with the GPIB For general operation of the I O port see the 4396B Function Reference manual The I O port on the analyzer s rear panel communicates with external devices for example a handler on a production line OUTS8IO command sets these signals INP8IO2 com reads these signals Figure 10 1 I O Port The I O port consists of the following 15 TTL compatible signals 8 bit output 4 bit input 3 grounds The signals IN 0 to IN 3 and OUT 0 to OUT 7 can be read and set by GPIB commands BASIC The Instrument BASIC commands READIO 15 0 and WRITEIO 15 0 can directly ses control the 8 bit I O port without using GPIB commands This operation is faster than using an GPIB command For more information on these commands see the Using
15. 1 801 1 2 When iBASIC is used change 801 to 802 OUTPUT Hp4396 POIN 1 A ENTER 0Hp4396 Nop When iBASIC is used delete these lines REDIM Dat 1 Nop 1 2 1 ASSIGN ODt TO 717 FORMAT OFF When iBASIC is used OUTPUT Hp4396 FORM3 change 717 to 800 OUTPUT Hp4396 0UTPCALC1 ENTER Dt USING 8A Head ENTER ODt Dat x ENTER Dt USING 1A Dum When iBASIC is used delete this line Modify Calibration Data Restore Calibration Data OUTPUT Hp4396 INPUCALC1 OUTPUT ODt USING 8A Head OUTPUT Dt Dat END ASSIGN Dt TO OUTPUT Hp4396 SAVC Redraw Trace END Figure 5 1 Sample Program To Modify Calibration Data 2 2 This program measures calibration standards reads the obtained calibration data and restores the data in the analyzer For details on how to obtain the calibration data by measuring the standard see Chapter 1 For details on how to transfer the data arrays see Chapter 4 Read Calibration Data 290 Read Calibration Data 300 DIM Dat 1 801 1 2 When iBASIC is used change 801 to 802 310 OUTPUT Hp4396 POIN 320 ENTER Hp4396 Nop When iBASIC is used delete these lines 330 REDIM Dat 1 Nop 1 2 340 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used 350 OUTPUT 0Hp4396 FORMS3 change 717 to 800 360 OUTPUT Hp4396 OQUTPCALC1 370 ENTER Dt USING 8A Head 380 ENTER Dt Dat 390 ENTER Dt USING 1A Dum When iBASI
16. 100 OUTPUT Hp4396 SING 110 Measuring GOTO Measuring 120 Sweep_end 130 DISP MEASUREMENT COMPLETE 140 END Figure 3 3 Sample Program To Wait for Sweep End Enable Sweep End Bit 60 OUTPUT Hp4396 CLES 70 OUTPUT Hp4396 SRE 4 ESNB 1 Line 60 clears all bits of the Status Registers and the Enable Registers In line 70 the command SRE 4 sets the Service Request Enable Register to 00000100 this enables bit 2 of the Status Byte Register The command ESNB 1 sets the Event Status Enable Register B to 0000000000000001 this enables bit O of the Event Status Register B See Figure 3 4 Service Request Enable Register SRE 4 o 0 i 7 6 5 4 Standard Status Byte Register Operation Event Message Status Status n Register Register Output Queue Event Status Enable Register B Lis Ea Ea Lo E E E E fa fs to ESNB 1 Event Status Forward Reverse Point Search Search Limit Limit Data Register B GET GET Measure Failed Failed Failed Failed Entry Complete CH 1 CH 2 CH 1 CH 2 Complete us nstrument 32768 16384 8192 4096 2048 1024 52 256 T Event Status Register For overall status register see GPIB Command Reference manual Figure 3 4 Sweep End Bit Enabling Synchronizing the Analyzer from Remote 3 3 Enable Registers select which events in the an
17. 5 2 OUTPDATA 5 7 OUTPDTRC 4 5 4 8 4 10 5 9 OUTPERRO 3 6 OUTPFAIP 8 4 Index 1 OUTPLIMF 8 4 OUTPLIML 8 4 OUTPLIMM 8 4 OUTPMARK 4 3 OUTPSWPRM 4 5 4 8 4 10 OUTPUT 1 4 P pass control 7 1 POIN 9 3 POWE 9 3 PRINALL 6 1 PROGram DEFine 7 4 PROGram DELete ALL 7 4 PROGram EXECute 7 3 PROGram SELected NUMBer 7 6 PROGram subsystem 7 3 Q query 1 8 R RAW DATA ARRAYS 4 1 4 5 5 5 remote mode 1 4 Index 2 S SADD 9 3 SAUNIT 5 5 SAVC 5 5 SDON 9 3 select code 1 4 serial number A 2 Service Request Enable Register 3 3 3 5 service request SRQ 3 1 SING 2 3 SPOLL 3 7 SRE 3 3 3 5 SRQ 3 1 Standard Event Status Register 3 5 Status Byte Register 3 3 3 5 SWPT 9 3 system controller 7 1 T TRG 2 4 TRGS BUS 2 4 TRGS INT 2 2 TRIGGER 2 4 trigger source 2 1 2 2 trigger system 2 1 Agilent 4396B Network Spectrum Impedance Analyzer Using Instrument BASIC with the 4396B o Agilent Technologies Printed in JAPAN Copyright 1997 2000 2001 2003 Agilent Technologies Japan Ltd Typeface Conventions Bold Italics Computer HARDKEYS SOFTKEYS Boldface type is used when a term is defined For example icons are symbols Italic type is used for emphasis and for titles of manuals and other publications Italic type is also used for keyboard entries when a name or a variable must be typed in place of the words in
18. 9 2 READIO 7 4 B 7 RUN CONT connector 7 3 trigger signal 7 3 run light indication D 7 S screen area allocating 2 3 select code 3 2 9 1 serial number A 2 SET TIME B 8 SET TIMEDATE B 9 CEM C 2 Shit Delete 0 3 Shit End C 3 Shift Insert 0 3 storage unit 9 1 T T 0 2 TIME B 10 TIME B 11 title entering 2 6 WwW WIDTH 4 2 WRITEIO 7 4 B 12 REGIONAL SALES AND SUPPORT OFFICES For more information about Agilent Technologies test and measurement products applications services and for a current sales office listing visit our web site http www agilent com find tmdir You can also contact one of the following centers and ask for a test and measurement sales representative 11 29 99 United States fax 61 3 9272 0749 Agilent Technologies tel 0 800 738 378 New Zealand Test and Measurement Call Center fax 64 4 802 6881 P O Box 4026 Englewood CO 80155 4026 Asia Pacific tel 1 800 452 4844 Agilent Technologies 24 F Cityplaza One 1111 King s Road Canada Taikoo Shing Hong Kong Agilent Technologies Canada Inc tel 852 3197 7777 5150 Spectrum Way fax 852 2506 9284 Mississauga Ontario L4W 561 tel 1 877 894 4414 Europe Agilent Technologies Test amp Measurement European Marketing Organization P O Box 999 1180 AZ Amstelveen The Netherlands tel 31 20 547 9999 Japan Agilent Technologies Japan Ltd Call Center 9 1 Takakur
19. 90000 The Instrument BASIC User s Handbook introduces you to the Instrument BASIC programming language provide some helpful hints on getting the most use from it and provide a general programming reference It is divided into three books Instrument BASIC Programming Techniques Instrument BASIC Interface Techniques and Instrument BASIC Language Reference Performance Test Manual Agilent Part Number 04396 901x0 The Performance Test Manual explains how to verify conformance to published specifications Service Manual Agilent Part Number 04396 901x1 The Service Manual explains how to adjust troubleshoot and repair the instrument This manual is option OBW only ae 1 The number indicated by x in the part number of each manual is allocated for numbers increased by one each time a revision is made The latest edition comes with the product vi Contents 1 Learning GPIB Remote Control Basics Required Equipment 2 1 1 To Prepare for GPIB Control 2020 Coe ee Loe 1 2 GPIB Commands Introduction A 14 To Execute an GPIB Command 2 Ce o 14 To Program a Basic Measurement 2 ee A 1 5 Set I O Path 2 A 1 6 Set Up the Measurement Parameters 0 ee ee 1 6 Perform Calibration 2 a a a a a a 1 7 Connect DUT 2 2 aa a a 1 7 Trigger a Measurement 2 2 0 ee a e 1 7 Post Processing 6 6 a a a 1 8 Transfer Data oao a a a 1 8 To Execute an GPIB C
20. Application Programs File Transfer Function This section describes how to use the file transfer function showing you a sample program The file transfer function uses the external controller to transfer files between the selected storage device of this instrument memory disk or diskette and an external storage device such as hard disk This function allows you to a Directly access data you want to use on the external controller For example you can transfer the file of an instrument screen to the external controller print it on a printer connected to the external controller and paste it onto a file in a word processor running on the external controller m Use external storage devices which have larger capacity compared to the memory disk or a diskette For example if there are a great number of measurement conditions which require calibration the amount of the setting data becomes extremely large including calibration data In this case it is impractical to store all of these settings on the memory disk or a single diskette at a time However you can realize this functionality by transferring them to the external controller and then storing them on an external storage device m Perform remote measurement using the external controller with a few GPIB commands for basic measurement You do not have to memorize further details such as GPIB commands used for detailed settings Preparation Use the keys on the front panel
21. Asn Z X C V B N M lt gt Asma A 1 2 3 Ent f End Y Po Dr j We Ve ve We We Ve ve We We We We y j V WM ve ou ar ar Em 0 lt v gt l Del j j W W VK WM ve VE NE VI Figure C 1 mini DIN Keyboard The Keyboard C 1 Character Entry Keys The character entry keys are arranged in the familiar QWERTY typewriter layout but with additional features Shift Enter rR Backspace Tab Sets the unshifted keyboard to either upper case which is the default after power ON or lower case normal typewriter operation You can enter standard upper case and lower case letters using the Shift key to access the alternate case Has three functions m When a running program prompts you for data respond by typing in the requested data and then press Enter This signals the program that you have provided the data and that it can resume execution When typing in program source code the Enter key is used to store each line of program code m After typing in a command the Enter key causes the command to be executed In the EDIT mode CTRL allows you to control the editor in the same as using the cursor control display control and editing keys For more detail see Using CTRL Key in Edit Mode Erases the character
22. F cent INPUT ENTER FREQUENCY SPAN Hz F span OUTPUT 0Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 ON INTR 7 GOTO Sweep_end When iBASIC is used change 7 to 8 ENABLE INTR 7 2 1 OUTPUT Hp4396 SING Trigger a Measurement Measuring GOTO Measuring Measuring Sweep_end DIM Dat 1 801 1 2 Swp 1 801 For spectrum measurement change OUTPUT 0Hp4396 FORM4 Dat 1 801 1 2 to Dat 1 801 OUTPUT Hp4396 QUTPDTRC ENTER Hp4396 USING K Dat OUTPUT GHp4396 OUTPSWPRM ENTER Hp4396 USING K Swp OUTPUT Hp4396 POIN ENTER 0Hp4396 Nop FOR I 1 TO Nop PRINT Swp I Hz Dat I 1 dB For spectrum measurement change NEXT I Dat I 1 to Dat I END Figure 4 2 Sample Program To Get Measurement Trace Using ASCII Format Set the Receive Array 180 DIM Dat 1 801 1 2 Swp 1 801 Line 180 sets the array size to the analyzer s maximum number of measurement points 801 In this example it is assumed that the analyzer is in the network analyzer mode of operation in which each point has complex data If you use the analyzer in the spectrum analyzer mode each measurement point has only real data so you must set the data array Dat as follows 180 DIM Dat 1 801 Swp 1 801 280 PRINT Swp I Hz Dat I dB If the number of measurement points changes then so does the number of data You must control the number of entered
23. FTLENAMEN on Controlling Instrument BASIC from Remote 7 3 To Run an Instrument BASIC Program From the External Controller 10 Figure 7 3 To Run iBASIC Program From Ext Controller 20 Un External Controller 30 ABORT 7 ASSIGN Hp4396 TO 717 OUTPUT Hp4396 PROG DEL ALL OUTPUT Hp4396 PROG DEF 0 OUTPUT Hp4396 10 MSI INTERNAL OUTPUT Hp4396 20 GET FIG3_3 OUTPUT Hp4396 30 END OUTPUT Hp4396 END OUTPUT 0Hp4396 PROG EXEC RUN END Figure 7 3 Sample Program To Run the Instrument BASIC Program From the External Controller On External Controller You must put the disk that contains FIG3_3 into the built in disk drive of the analyzer before running the program The sample program disk for Instrument BASIC contains FIG3_3 Open the Instrument BASIC Editor 60 OUTPUT Hp4396 PROG DEL ALL 70 OUTPUT 0Hp4396 PROG DEF 0 Scratch any program currently existing in the analyzer s Instrument BASIC editor and open the editor Send the Instrument BASIC Program 80 OUTPUT 0Hp4396 10 MSI INTERNAL 90 OUTPUT 0Hp4396 20 GET FIG3_3 100 OUTPUT Hp4396 30 END In the Instrument BASIC editor the following program is now present 10 MSI INTERNAL 20 GET FIG3_3 30 END Close the Instrument BASIC Editor 110 OUTPUT 0Hp4396 END Sending the END command to the analyzer closes the editor 7 4 Controlling Instrument BASIC from Remote Run the Instrument B
24. Instrument BASIC System The Instrument BASIC s programming interface includes an editor and a set of programming utilities The utilities allow you to perform disk I O renumber secure or delete all or part of your program The Instrument BASIC command set is similar to the command set of HP 9000 Series 200 300 BASIC Therefore Instrument BASIC programs can be run on any BASIC workstation with few if any changes Porting information can be found in the Instrument BASIC Programming Techniques of the Instrument BASIC Users Handbook Connecting the Keyboard Note Turn OFF the analyzer before inserting or removing the keyboard connector w When you use Instrument BASIC connect the furnished keyboard to the mini DIN connector on the rear panel 2 2 Introduction to the System Using Instrument BASIC for the First Time Allocating Screen Area for Instrument BASIC Because all of the analyzer s screen is allocated for analyzer operation after power ON you must allocate screen area for Instrument BASIC when you want to use it The analyzer provides four display allocation types Select one of them using DISPLAY ALLOCATION under Display Let s try 1 Press the following key and softkeys Display MORE DISPLAY ALLOCATION MORE ALL INSTRUMENT HALF INSTR HALF BASIC DISPLAY l gt ALL ALLOCATION BASIC BASIC STATUS RETURN C5502001 2 Press the following softkey A
25. Instrument BASIC with the 4396B manual Using the Analyzer s I O Port 10 1 To Synchronize External Handler with Analyzer Figure 10_2 Synchronization of an External Handler with the Analyzer ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 0UT8IO 8 REPEAT OUTPUT 0Hp4396 INP8I0 ENTER Hp4396 Inpio Waiting Handler Response A BIT Inpio 3 UNTIL A 1 Figure 10 2 Sample Program Synchronization of an External Handler with the Analyzer Send Signal to the External Handler 80 OUTPUT 0Hp4396 0UT8SIO 8 The OUT810 parameter command sets the 8 bit data value of the OUT 0 7 lines The OUT8IO 8 command sets the OUT 3 line to TRUE 1 QUT GUTO OUTS QUT4 OUT3 OUT2 OUTI OUTO O 0 0 JO LO OO ursro e 128 64 32 16 8 4 2 1 C5309004 Figure 10 3 8 Bit Data of OUTO 7 Controller GPIB command OUT8IO 43968 I O port D0 ooog geasa OUTO 8 o o gla ancog Qooooq esses TTL signal ACT handler DAE RARO 8 bit data CB301001 Figure 10 4 Sending Signal to an the External Handler 10 2 Using the Analyzer s I O Port Read Signal from the External Handler 130 A BIT Inpio 3 140 UNTIL A 1 100
26. PASS CONTROL 721 120 PRINTER IS LCD 130 END Figure 6 8 Sharing a Printer Program for Instrument BASIC Application Programs 6 5 Loading Instrument BASIC Programs Using Softkeys This program displays up to eight program file names in the analyzer s softkey label area One of the programs can be selected and executed by just pressing a softkey This feature lets you execute a program without using the keyboard You only need to select the softkey of the program you want to execute You can name this program file AUTOST so it will be executed automatically when the analyzer is turned ON When you want to recall this program again after the execution of an object file you simply add the command GET AUTOST just before the END statement line of your object program code 6 6 Application Programs ASSIGN Hp4396 TO 800 DIM Dir 1 200 80 File 1 200 10 CAT TO Dir File_number 0 REPEAT File_number File_number 1 File File_number Dir File_number 7 1 10 UNTIL File File_number OR File_number gt 200 I Max_page INT File_number 1 6 1 Npage 1 OUTPUT Hp4396 USKEY SYSTEM key OUTPUT 0Hp4396 KEY O IBASIC key OUTPUT 0Hp4396 KEY 6 ON KEY LABEL key Head Page Npage 1 6 ON KEY 1 LABEL File Page 1 GOSUB Jump1 ON KEY 2 LABEL File Page 2 GOSUB Jump2 ON KEY 3 LABEL File Page 3 GOSUB Jump3 ON KEY 4 LABEL File Page 4 GOSUB Jump4 ON KEY 5 LABEL File Page 5 GOSUB Jump5 ON KEY
27. RAM Disk Memory GPIB Commands for Instrument BASIC Manual Changes Introduction 4 Ce Manual Changes 2 008 Instruments Covered by This Manual BASIC Commands Specific to 4396B BASIC Commands Not Implemented BASIC Commands Specific to 4396B DATE DATES 2 a EXECUTE 0 02054 READIO 2 ee A SET TIME 2 2 00084 SET TIMEDATE 44 TIME 2 TIMES 2 1 a WRITEIO 2 ee The Keyboard Character Entry Keys 0 Cursor Control and Display Control Keys Numeric Keypad cc Editing Keys 2 2 2 2 08 Program Control Keys 4 System Control Keys 048 Softkeys and Softkey Control 2 2 Softkey Control Keys 4 Softkeys a e Softkeys Accessed from Key cc IBASIC Menu 2 ee ee Softkeys Accessed form Key 2 2 a Using CTRL Key in Edit Mode Softkeys Used for Instrument BASIC Operation Le IBASIC cc MEMORY PARTITION 2 Display Cc E ee DISPLAY ALLOCATION cce Run Light Indications 2 2 Index 9 1 9 1 9 2 9 2 9 3 D 2 D 2 D 5 D 6 D 6 D 7 Contents 3 Figures 2 1 Configuration Example of the Instrument BASIC System 2 2 2 2 2 6 1 Sending GPIB Command Coe 6 1 6 2 Reading I O Port Ce a 6 2 6 3 Writing Data to the I O Port
28. Segment Sweep Parameter Upper Limit Lower Limit 1 Table 1 1 Table 1 2 Table 1 3 2 Table 2 1 Table 2 2 Table 2 3 Lines 110 to 130 call the subroutine Loadlimit line 610 to edit and print as many segments as you defined in line 100 the analyzer can retain up to 18 segments Segment Swp Prmtr Hz 2 E 6 3 E 6 10 4 E 6 10 Upper 0 The loop lines 150 to 210 determines if you want to edit the table and confirms that the segment is in the table Set Limit Line 230 240 250 260 270 280 290 300 310 320 330 OUTPUT 0Hp4396 EDITLIML OUTPUT 0Hp4396 LIMCLEL FOR K 1 TO Numb OUTPUT 0Hp4396 LIMSADD OUTPUT 0Hp4396 LIMPRM Table K 1 OUTPUT 0Hp4396 LIMU Table K 2 OUTPUT 0Hp4396 LIML Table K 3 OUTPUT 0Hp4396 LIMSDON NEXT K OUTPUT 0Hp4396 LIMEDONE OUTPUT 0Hp4396 LIMILINE ON Start to set the limit line Clear existing limit table Start to set a segment Enter sweep parameter Enter upper limit Enter lower limit Complete the segment Complete the limit line Setting the limit line Setting a segment Set limit line ON In this portion of the program the limit table edited using BASIC is transferred to the analyzer Programming Limit Test from Remote 8 3 Read the Limit Test Results 430 OUTPUT 0Hp4396 LIMITEST ON 440 DIM Dt 1 801 1 4 450 OUTPUT 0Hp4396 0OUTPLIMF Output test results 460 ENTER 0Hp4396 USING K Dt 1 470 OU
29. The ability to assert the GPIB interface clear line IFC and remote enable line i REN are reserved for the system controller Even when Instrument BASIC has 3 active control it is denied these functions ABORT 7 assert the interface clear line IFC REMOTE 7 assert the remote enable line REN To return active control to the system controller PASS CONTROL 721 Return Control On Instrument BASIC 7 2 Controlling Instrument BASIC from Remote Or you can return control to the external controller by resetting the GPIB as follows ABORT 7 Return Return Control On External Controller This returns active control to the system controller Note The PROGram subsystem commands in the following programs can be used i on the external controller See the GPIB Command Reference manual for 3 additional information on the use of SCPI commands To Execute an Instrument BASIC Command from the External Controller Combine the PROG EXEC command with Instrument BASIC command to be executed For example to execute EDIT command OUTPUT 717 PROG EXEC EDITU Or you can change the double quoted term EDIT to a single quote EDIT as follows OUTPUT 717 PROG EXEC EDIT Be careful when you execute an Instrument BASIC command that requires a parameter For example to execute the Instrument BASIC command GET FILENAME the quotation is as follows OUTPUT 717 PROG EXEC GET
30. To Transfer the Program to Instrument BASIC aoaaa a a ee Open the Instrument BASIC Editor a a a a a a a a a a Transfer the Program oaoa a a Close the Instrument BASIC Editor aoa a a a a a a To Load an Array in an Instrument BASIC Program to the External Controller Transfer the Program Array of Instrument BASIC 2 2 2 2 Contents 2 10 11 12 Programming Limit Test from Remote To Perform limit Test 2 2 2 2 A 8 1 Edit Limit Line 2 a a a 8 2 Set Limit Line 2 e a Cc 8 3 Read the Limit Test Results cc Ce 8 4 Using the List Sweep Function To Set List Sweep 2 ww A 9 1 Edit List Table 2 2 A 9 2 Set List Table 2 2 2 2 A 9 3 Using the Analyzer s I O Port To Synchronize External Handler with Analyzer 24 10 2 Send Signal to the External Handler 1 ee ee ee es 10 2 Read Signal from the External Handler 2 10 3 Using Application Programs Total Harmonic Distortion 2 2 a a a 11 1 Adjacent Channel Power Calculation 2 1 2 a ee ee 11 4 Occupied Power Bandwidth Calculation a a a a a a a a 2632 een 11 6 File Transfer Function oaa a a a a 11 9 File Transfer from 4396B to External Controller 0 02 2222 11 10 File Transfer from External Controller to 4396B ao aa a a a a a 11 12 Displaying List of Files in Current Directory 11 15 If You Have a Problem If There Is No Response F
31. When all program lines are transferred the computer exits the loop and goes to line 170 Close the Instrument BASIC Editor 190 OUTPUT 0Hp4396 END Sending the analyzer the END command closes the editor To Load an Array in an Instrument BASIC Program to the External Controller Figure 7 5 To Load iBASIC Program Array on External Controller I ABORT 7 ASSIGN Hp4396 TO 717 DIM Passed 1 801 1 2 OUTPUT 0Hp4396 PROG NUMB Dat ENTER Hp4396 Passed END Figure 7 5 Sample Program To Load Instrument BASIC Program Array on External Controller This program retrieves the array generated in the sample program listed in Figure 4 2 when that program is executed in Instrument BASIC This information is transferred to the external controller First run the Instrument BASIC program FIG4_2 to store the data into the array Then run the program in Figure 7 5 to transfer the data Transfer the Program Array of Instrument BASIC 70 OUTPUT 0Hp4396 PROG NUMB Dat 80 ENTER Hp4396 Passed The PROG NUMB Dat query returns the program array Dat 1 801 1 2 of Figure 4 2 The array is entered into Passed 1 801 1 2 1 6 Controlling Instrument BASIC from Remote Programming Limit Test from Remote This chapter describes how to perform limit tests set the limit lines test the DUT and transfer the results of the test To Perform limit Test Figure 8 1 Limit Test ASSIGN Hp4396 TO
32. is turned ON the default settings are as follows a MOVE 0 0 Example of Graphics Programming This section describes an example of a simple program for drawing lines on the graphics screen a Drawing a Straight Line The following Instrument BASIC program will draw a line from coordinate 50 200 to coordinate 300 200 on the display GCLEAR INITIALIZE GRAPHICS MODE MOVE 50 200 MOVE PEN TO COORDINATE 50 200 DRAW 300 200 DRAW A LINE TO COORDINATE 300 200 END a Drawing a Circle Trying to express all graphical images using only straight lines is tedious slow and difficult This example describes a subprogram you can use to draw a circle It can draw a circle by passing the center coordinates and the radius as arguments to the following subroutine This subroutine can be used as a base for drawing arcs setting different values for Theta etc SUB Drawcircle Centx Centy R DEG USE DEGREES FOR ANGLE EXPRESSIONS 7 2 Program 1 0 X Centx R Y Centy MOVE X Y For Theta 1 to 360 X INT COS Theta R Centx Y INT SIN Theta R Centy MOVE PEN TO INITIAL POINT NEXT X COORDINATE ON CIRCLE NEXT Y COORDINATE ON CIRCLE DRAW X Y DRAW LINE TO NEXT POINT ON CIRCLE NEXT Theta UNTIL STARTING POINT IS REACHED SUBEND Using the External RUN CONT Connector You can use the RUN or CONT commands in a program by inputting a TTL compatible signal to the External RUN CONT connector on the rear panel At the negative going edg
33. italics For example copy filename means to type the word copy to type a space and then to type the name of a file such as filet Computer font is used for on screen prompts and messages Labeled keys on the instrument front panel and furnished keyboard are enclosed in Softkeys located to the right of the LCD are enclosed in How to Use This Manual This guide will help you learn how to effectively use Instrument BASIC IBASIC of the 4396B Network Spectrum Impedance Analyzer It will help you to perform typical operations involving program creation editing and execution It will also show you how to save and recall programs and how to make the best use of the Instrument BASIC s front panel and keyboard interface Here is a brief guide to help you locate the necessary information in this manual m Chapter 2 introduces the analyzer s Instrument BASIC system and describes how to connect and use a keyboard m Chapter 3 and Chapter 4 show creating getting and saving programs to teach you front panel and keyboard operation m Chapter 5 introduces you to the editing environment m Chapter 6 provides application programs and useful techniques for developing programs m Chapter 7 describes interfacing features for graphics external connector to trigger RUN CONTinue of a program and I O port m Chapter 8 introduces special features for auto loading a program and the On Key Label function softkeys defined in a program T
34. m Semantics This command changes only the time within the current day not the date The new clock setting is equivalent to TIMEDATE DIV 86400 x 86400 plus the specified setting B 8 BASIC Commands Specific to 4396B SET TIMEDATE Keyboard Executable Yes Programmable Yes InanIF THEN Yes This command resets the absolute seconds time and day given by the real time clock SET TIMEDATE seconds 271006 Item Description Range 2 08662912E 12 to 2 143252224KE 4 11 numeric expression rounded to the nearest hundredth seconds a Example Commands SET TIMEDATE TIMEDATE 86400 SET TIMEDATE Strange_number m Semantics The volatile clock is set to 2 08662912E 11 midnight March 1 1900 at power on If there is a battery backed non volatile clock then the volatile clock is set to its value at power up If the computer is linked to an SRM system and has no battery backed clock then the volatile clock is set to the SRM clock value when the SRM and DCOMM binaries are loaded The clock values represent Julian time expressed in seconds BASIC Commands Specific to 4396B B 9 TIME Keyboard Executable Yes Programmable In an IF THEN Yes Yes This command converts data formatted as time of day HH MM SS into the number of seconds past midnight TIME CO time of day d literal form of time of day ot m delimiter minutes
35. mode Leads to a softkey menu defined during program execution if the softkey menu has been defined Produces the command CAT CAT lists the contents of a mass storage directory Produces the command SAVE SAVE creates an ASCII file and copies program lines as strings into that file Produces the command RE SAVE RE SAVE creates a specified ASCII file if it does not exist otherwise it rewrites a specified ASCII file by copying program lines as strings into that file Produces the command GET GET reads the specified ASCII file and attempts to store the strings into memory as program lines Produces the command PURGE PURGE deletes a file or directory from the directory of a mass storage media Produces the command INITIALIZE INITIALIZE prepares mass storage media for use by the computer When INITIALIZE is executed any data on the media is lost Produces the command MSI on the keyboard input line MSI specifies the mass strage INTERNAL specifies the internal flexible disk MEMORY specifies the RAM disk Produces the command SCRATCH The SCRATCH erases the program in memory After SCRATCH is entered pressing executes the command Produces the command REN REN renumbers all of the program lines currently in memory Produces the command LIST Lists the program on the screen Leads to the Command entry menu which allows you to execute the Instrument BASIC c
36. more information see the following chapters and documents For more information on See IBASIC menu IBASIC Menu in Appendix C Initializing a disk Save Menu in Chapter 8 of the Function Reference Saving and Getting Programs 4 3 Editing Programs This chapter describes how to edit programs using the EDIT mode The topics covered in this chapter are m Getting into out of the EDIT mode m Editing programs in the EDIT mode m Renumbering program line numbers Getting Into Out of the EDIT Mode Getting Into the EDIT Mode using the Front Panel Keys Pressing the following key and softkey allows you to enter the EDIT mode immediately irrespective of Display Allocation System IBASIC Edit Entering the EDIT Mode from the Keyboard Use the following keys to enter the EDIT mode with the cursor positioned at the specified line number The line number can be omitted Press the following key among the 3 menus which leads to the Shift F9 key EDIT line number Enter or type as follows EDIT line number Enter To use the keyboard the Keyboard Input Line must be allocated on the screen If it is not press Display MORE DISPLAY ALLOCATION and select any allocation except ALL INSTRUMENT Getting Out of the EDIT Mode The EDIT mode is exited by pressing Shift Alt F4 Esc and Home from the keyboard or by pressing the END EDIT softkey Editing Programs 5 1 Editing Progra
37. number of measurement point and averaging factor to typical values In lines 610 to 760 the subprogram FNPower performs summation of the powers by measurement points in the area of center frequency Fch and the frequency span Fs The total power is calculated by the following equation x I2 D x F PWR 101081 gt Dle span wy 11 2 x I1 Nop Where D x Power density spectrum dBm Hz F span Measurement frequency span Hz Nop Number of measurement points I1 2 The measurement point of left and right edge of a channel bandwidth F s Occupied Power Bandwidth Calculation This program calculates the occupied bandwidth of the carrier signal It first computes the combined power of all signal responses contained in the trace It then calculates the point for which 0 5 of the total power lies to the right of the right maker and to the left of the left marker CH4 S Spct Hz 12 dB REF 10 dBm 44 298 dB Hz 23 5 kHz AMkr Avg 10 o A Hid ABW 100 Hz VBW foo Hz ATN 10 dB SWP 1 098 sec CENTER 20 MHz SPAN 80 kHz Occupled Power Band Width Figure 11 5 99 Occupied Power Bandwidth Before running the program set up the measur
38. of each segment as follows Segment Center Frequency Number of Power Level Resolution Frequency Span Points Band Width 1 Table 1 1 Table 1 2 Table 1 3 Table 1 4 Table 1 5 2 Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Lines 130 to 150 call the subroutine Loadlist line 500 to edit and print as many segments as you defined in line 120 The analyzer can retain up to 31 segments RBW Hz 100 300 100 Points Power dBm 100 0 300 0 400 0 Segment Center Hz 100 Stop Hz 20 1000 1000 10000 1000000 The loop lines 170 to 230 determines if you want to edit the table and confirms that the segment is in the table Set List Table 250 OUTPUT Hp4396 EDITLIST Start to set the list table 260 OUTPUT 0Hp4396 CLEL Clear existing limit table 270 FOR K 1 TO Numb 280 OUTPUT Hp4396 SADD Start to set a segment 290 OUTPUT Hp4396 CENT Table K 1 Enter center frequency 300 OUTPUT Hp4396 SPAN Table K 2 Enter frequency span 310 OUTPUT Hp4396 POIN Table K 3 Enter number of points segment 320 OUTPUT Hp4396 POWE Table K 4 Enter power level 330 OUTPUT Hp4396 BW Table K 5 Enter resolution band width 340 OUTPUT Hp4396 SDON Complete the segment 350 NEXT K 360 OUTPUT 0Hp4396 EDITDONE Complete the list table 370 OUTPUT Hp4396 SWPT LIST Activate list sweep In this portion of the program the list table edited using BASIC
39. outputs 80 columns to a line and the maximum number of columns to a screen is 61 each line is wrapped at the 62th column If you do not want the list to wrap around execute the following statement before executing the CAT command PRINTER IS LCD WIDTH 80 CAT will list the file names with no wrap around but anything after the 62th column in the output cannot be seen 4 2 Saving and Getting Programs Listing to Printer Note For hard copy output an parallel cable must connect the analyzer to the A printer 2 1 Set the output device to be a printer as follows PRINTER IS PRT 2 Press the following key among the 3 menus which leads to the key FILE UTILITY CAT You can list from the keyboard Type and press as follows CAT The program is listed on the printer 3 Get the output device back to LCD PRINTER IS LCD Getting Programs GET You can retrieve a program from the disk as follows 1 If the display allocation is ALL INSTRUMENT change the allocation to either HALF INSTRument HALF BASIC or ALL BASIC For example Display MORE DISP ALLOCATION ALL BASIC 2 Press the following key among the 3 menus which leads to the key and type the filename you want to retrieve FILE UTILITY GET file name Enter You can get the file from the keyboard Type and press as follows GET filename If You Need More Information This chapter is an introduction to saving and retrieving programs on a disk For
40. particularly handy to use when you mistype a line Instead of retyping the entire line you can recall it edit it using the editing keys and enter or execute it again Shift Page Down moves forward through the recall stack Att 3 Run Starts a program running from the beginning Att E2 Resumes program execution from the point where it paused Continue F12 IBASIC Allows you to type BASIC commands on Keyboard Input Line If Display Allocation is ALL INSTRUMENT pressing this key changes the Display Allocation to BASIC STATUS Shift F12 changes Display Allocation to ALL INSTRUMENT Softkeys and Softkey Control There are eight softkeys labeled f1 through fs The softkey labels are indicated on the right of the analyzer s screen Softkey Control Keys Pressing the following F9 Leads to the IBASIC menu which controls programs and the editor Shift F9 leads to the BASIC menu from which to control a BASIC program This menu is the same menu displayed when pressing SYSTEM IBASIC from the front panel In the edit mode pressing F10 leads to the Edit System menu which provides softkeys to conveniently enter BASIC commands Shift F10 User leads to the ON KEY LABEL menu which are user defined softkeys in a BASIC program For information on getting to this menu through the Instrument BASIC see On Key Label Function in Chapter 8 Softkeys F9 and F10 keys leads
41. s try 1 Press the following key and softkeys Display MORE DISPLAY ALLOCATION ALL INSTRUMENT 2 Then press the following key Gar The current start frequency is displayed on the screen and becomes the active analyzer function 3 Type a value to change the frequency from the keyboard For example type this 100000 The START value is cleared and the value you typed is displayed Introduction to the System 2 5 4 Then press the following key on the keyboard The START value is changed to 100 kHz 5 Next type the following value and key 2E6 Enter After pressing Enter the active function value is changed to 2 MHz You can use the character E and e in an exponential expression Pressing on the keyboard deletes the last entry This performs the same function as pressing on the front panel Entering Titles The character entry keys can be used to enter a title on the screen instead of using front panel operation Let s Try 1 Press the following key and softkey MORE TITLE A cursor appears at the top left of the graticule 2 Type in characters using the keyboard the characters you type appear at the top of the graticule 3 Press the following key to terminate entry You can enter standard uppercase and lowercase letters for the title using the Ghift key to access the alternate case as usual For more information on the character entry keys see Character Entry Keys in Appendix C E
42. the internal GPIB bus This means that an analyzer with Instrument BASIC includes both a controller and an analyzer in the same instrument They are connected through an internal GPIB bus Note The select code of the internal GPIB interface is 8 and the GPIB address of the i analyzer can be any number from O to 30 In this manual we use 800 for the 1 device selector of the analyzer For more information on GPIB addresses and device selectors see Device Selectors in the Instrument BASIC Interfacing Techniques of the Instrument BASIC Users Handbook and Available I O Interfaces and Select Codes in Chapter 9 You can write the program by using the keyboard or by pressing keys and softkeys from the front panel procedure without using the external keyboard Using the keyboard is very useful when you write a larger and more complex program or type comments in a program For detailed information on how to use the keyboard see Appendix C Let s Try The following example program selects the following measurement settings Active Channel Block Channel 1 default Measurement Block Network Analyzer A R LOG MAG format default Display scale to AUTO Sweep Block Center frequency 70 MHz Span frequency 100 kHz 1 Turn the analyzer ON 2 Press the following key and softkeys to display the network analyzer mode softkeys Meas ANALYZER TYPE NETWORK ANALYZER RETURN 3 Press the following k
43. the instrument screen Therefore you can draw figures in both the trace display and softkey label areas 465 399 545 399 0 399 Instrument Screen g spLAY AREA Graphics Screen 0 0 C5507002 Figure 7 1 Screen Structure Program HO 7 1 Each point on the graphics screen is addressable using a coordinate address as shown in Figure 7 1 The bottom left corner is the origin 0 0 and the top right corner is the maximum horizontal and vertical end points 893 299 The MOVE and DRAW statement parameters are specified using these coordinate values Because the aspect ratio of a graphics screen is 1 you need not adjust the aspect ratio when drawing figures Instrument BASIC Graphics Commands The analyzer s Instrument BASIC has three graphics commands MOVE DRAW and GCLEAR MOVE Moves the pen from its current position to the specified coordinates DRAW Draws a line from the current pen position to the specified coordinates GCLEAR Clears the graphics screen moves the pen from its current position to the origin 0 0 and selects pen 1 Note The total times of executing the MOVE and DRAW commands is up to 1938 even i if the pen position is not changed w Hard Copies Graphics hard copies can be obtained with the printing function PRINT PRINT under prints a display image on a printer See Copy Menu in Chapter 8 of the Function Reference Initial settings When power
44. the output port of the I O port the output data must be decimal data Binary expressed data is useful to set each bit ON or OFF If you want to set bits of the output port using binary data use the IVAL or DVAL command of Instrument BASIC This command allows you to convert data from binary to decimal The following example shows how to write binary data to the I O port by using the DVAL command 10 Bin_dat 11111111 20 Decimal dat DVAL Bin dat 2 Convert binary data to decimal 30 WRITEIO 15 0 Decimal_dat 40 END Figure 6 3 Writing Data to the I O Port 6 2 Application Programs Disk I O for a Storage Unit The analyzer has a built in disk drive and RAM disk memory You can save or get data using these disks with Instrument BASIC Saving Trace Data This program saves the analyzer s current raw measurement data to an arbitrarily named file 10 DIM File_name 10 20 ASSIGN Hp4396 TO 800 30 INPUT ENTER FILE NAME up to 10 Characters File_name 40 OUTPUT 0Hp4396 SAVDDAT File_name 50 END Figure 6 4 Saving Trace data Loading Trace Data This program loads trace data from the built in disk drive into the Dat array DIM Dat 1 201 1 2 DIM File name 10 ASSIGN 0Hp4396 TO 800 MSI INTERNAL 4 INPUT ENTER FILE NAME without EXT File_name File name File name amp DAT ASSIGN File TO File name Open target file ENTER File USING 16X ENTER File USING 12X 100 ENTER Fi
45. then execute this program again MEMO TEST Size byte File Name 1 A 1 DIR1 24576 FILE1 STA 16384 FILE2 TIF 11 16 Using Application Programs 12 If You Have a Problem This chapter provides the information you need to correct the listed problems If There Is No Response From an Instrument on the GPIB Bus o Check all GPIB addresses and cable connections Most GPIB problems are caused by an incorrect address or a bad or loose GPIB cable If an Error Message is Displayed co Check the error message on the analyzer s display Error message is displayed here 531001 EC sa T me O E E FO WEEP o O 0O Ol EE a o ICI3 DOlD O EO JOE MOCHO OO EL gi E A f m If GPIB error occurred is displayed 1 Get the error number and description using the OUTPERR0 command For information on how to use this command see the To Report Command Error Occurrence in Chapter 3 2 See Messages in the GPIB Command Reference manual a If any other message is displayed See Messages in the GPIB Command Reference manual If You Have a Problem 12 1 If the Disk Cannot Be
46. to enter the destination file name as shown below in this example the size of SAMPLE STA is 12288 bytes Enter the file name you want to give on the destination storage device Note that a file with the same name will be overwritten if it already exists ENTER SOURCE FILE NAME ON INSTRUMENT SAMPLE STA ENTER SOURCE FILE SIZE 12288 ENTER DESTINATION FILE NAME ON CONTROLLER 11 12 Using Application Programs 10 20 Figure 11 8 File transfer Controller gt Instrument 30 40 DIM Src_file 50 Dst_file 50 50 ASSIGN Hp4396 TO 717 60 OUTPUT Hp4396 rst 70 80 PRINT ENTER SOURCE FILE NAME ON CONTROLLER 90 INPUT Src_file 100 PRINT Src_file 110 120 PRINT ENTER SOURCE FILE SIZE 130 INPUT Src_size 140 PRINT Src_size 150 160 PRINT ENTER DESTINATION FILE NAME ON INSTRUMENT 170 INPUT Dst_file 180 PRINT Dst_file 190 200 Copy to instr 0Hp4396 Src file Src size Dst fileg 210 220 END 230 1 240 copy to instrument 250 260 SUB Copy to instr 0Hp4396 Src file Src size Dst file 270 DIM Img 32 280 Max bsize 16384 290 300 ASSIGN Src_file TO Src_file 310 320 CLEAR 0Hp4396 330 OUTPUT Hp4396 CLES 340 OUTPUT 0Hp4396 WOPEN Dst_fileg 350 IF FNCheck error 0Hp4396 lt CPTI wopen gt 1 THEN SUBEXIT 360 Xfr done 0 370 380 LOOP 390 SELECT Src_size Xfr_done 400 CASE gt Max_bsize 410 Block_size Max_bsize 420 CASE O 430 ASSIGN Src
47. to establish the setting required for your measurement Store it on the storage device of the 4396B then transfer the file to the external controller and store it on an external storage device Repeat this procedure for all of the settings required for your measurement Measurement Choose a necessary setting file from those stored and transfer it to the 4396B using the external controller Then recall the file to set the 4396B for the measurement and perform the measurement using the GPIB commands The storage device of the 4396B allows you to handle files listed below in the DOS format or the LIF format For DOS format files both binary files and ASCII files can be transferred For LIF format files only binary files can be transferred a Binary files o Instrument settings and internal data array STATE o Internal data arrays DATA ONLY binary Oo Graphic images GRAPHICS m ASCII files o Internal data arrays DATA ONLY ascii o Instrument BASIC programs Using Application Programs 11 9 File Transfer from 4396B to External Controller This program transfers a specified file in the current directory of the 4396B to the current directory of the storage device connected to the external controller giving a file name you desire When executed this program first prompts you to enter a source file name as shown below Enter the name of a file you want to transfer ENTER SOURCE FILE NAME ON INSTRUMENT Then the prog
48. to the IBASIC menu Pressing a softkey performs the command labeled or produces a sequence of characters on the keyboard input line or on the current line in the EDIT mode Pressing the softkeys on the front panel of the analyzer performs the same functions as pressing the f1 through fs function keys C 4 The Keyboard Softkeys Accessed from shift F9 Key IBASIC Menu Pressing the following Step Continue Run Pause Stop EDIT ON KEY LABELS CAT SAVE RE SAVE GET PURGE INITIALIZE MSI SCRATCH RENumber LIST COMMAND ENTRY CLEAR 1 0 Produces the command Step on the keyboard input line Step executes a program at every line Produces the command Continue on the keyboard input line Resumes program execution from the point where it paused Produces the command Run on the keyboard input line Immediately executes a program Produces the command Pause on the keyboard input line Pauses program execution after the current program line is executed Produces the command Stop on the keyboard input line Stops program execution after the current line To restart the program press Run Produces the command EDIT on the keyboard input line After EDIT is entered pressing enters the edit mode Leads to a softkey menu defined during program execution if the softkey menu has been defined Produces the command CAT CAT lists the co
49. write data to the analyzer as long as that data is in binary rather than ASCII format What are other binary You can use the following data transfer formats by data formats changing the GPIB command FORM3 in line 200 e IEEE 32 bit floating point format FORM2 e MS DOS personal computer format FORM5 Reading Measurement Data 4 7 Read Data 250 OUTPUT 0Hp4396 OUTPDTRC 260 ENTER Dt USING 8A A 270 ENTER Dt Dat 280 ENTER Dt USING 1A B 290 OUTPUT 0Hp4396 OUTPSWPRM 300 ENTER Dt USING 8A A 310 ENTER Dt Swp 320 ENTER Dt USING 1A B FORMS has an eight byte header to deal with The first two bytes are the ASCII characters 6 This indicates that a fixed length block transfer follows and that the next 6 bytes form an integer specifying the number of bytes in the block to follow The header must be read in so that data order is maintained lines 260 and 300 At the data end the terminator LF Eo is sent lines 280 and 320 No of bytes followed Binary data 6 bytes 8 bytes Binary data Complex data only 8 bytes Figure 4 4 FORMS Data Transfer Format 4 8 Reading Measurement Data Before running the program in Figure 4 5 you must modify the dimension of the data arrays to match the analyzer type network or spectrum See the Set the Receive Array below Figure 4 5 To Get Measurement Trace Using IEEE 64 b
50. 0 INPUT Connect DUT then press Return Dum 310 OUTPUT 0Hp4396 CLES Clear all status registers 320 OUTPUT Hp4396 SRE 4 ESNB 1 330 ON INTR 7 GOTO Sweep_end When iBASIC is used 340 ENABLE INTR 7 2 change 7 to 8 350 OUTPUT Hp4396 SING Sweep mode is SINGLE 360 Measuring GOTO Measuring 370 Sweep_end 380 OUTPUT Hp4396 MKR ON Marker 1 ON 390 OUTPUT Hp4396 SEAM MAX Search MAX 400 OUTPUT 0Hp4396 0OUTPMKR Output marker value 410 ENTER Hp4396 Vali Val2 Swp 420 PRINT Max val Vali dB 430 PRINT Swp Prmtr Swp Hz 440 END Figure 1 3 Sample Program Basic Measurement 2 2 Set I O Path 40 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 This operation allows you to use Hp4396 instead of 717 or 800 as the GPIB address in the program Set Up the Measurement Parameters 60 OUTPUT 0Hp4396 PRES Preset 4396B 70 OUTPUT 0Hp4396 CHAN1 NA MEAS S21 FMT LOGM 80 INPUT Enter center frequency Hz F_cent 90 INPUT Enter frequency span Hz F_span 100 OUTPUT Hp4396 CENT F cent 110 OUTPUT 0Hp4396 SPAN F span You can execute GPIB commands in the same sequence as key operation Lines 60 and 70 perform the same operation as pressing Preset Chan 1 Meas ANALYZER TYPE NETWORK ANALYZER S PARAMETERS Trans FDW S21 B R Format LOG MAG In general the procedure for setting up measurements on the analyzer via GPIB follows the same sequence as
51. 1 7 parameter You can move the Amarker using the following commands e specified sweep parameter DMKRPRM parameter e specified primary part of marker DMKRVAL parameter value e specified secondary part of DMKRAUV parameter marker value 1 Before executing these commands you must turn on the markers to be moved Read Data 210 OUTPUT Hp4396 OUTPMKR 220 ENTER 0Hp4396 Val1 Val2 Swp The OUTPMKR command returns the marker value in the following order primary part of data secondary part of data and sweep parameter What are other marker You can get the marker value using the following commands value commands e get primary part of marker value MKRVAL e get secondary part of marker value MKRAUV e get Sweep parameter MKRPRM e get data point number MKRP You can get the sub marker value using the following commands e get primary part of sub marker value SMKRVAL 1 7 e get secondary part of sub marker value SMKRAUV 1 7 e get Sweep parameter SMKRPRM 1 7 7 e get data point number SMKRP 1 7 You can get the Amarker value using the following commands e get primary part of Amarker value DMKRVAL e get secondary part of Amarker value DMKRAUV e get sweep parameter DMKRPRM Reading Measurement Data 4 3 To Get Measurement Trace Using ASCII Format Figure 4 2 To Get Measurement Trace Using ASCII Format ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 INPUT ENTER CENTER FREQUENCY Hz
52. 2 When iBASIC is used change 801 to 802 OUTPUT Hp4396 POIN ENTER Hp4396 Nop When iBASIC is used delete these lines REDIM Dat 1 Nop 1 2 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used OUTPUT Hp4396 FORM3 change 717 to 800 OUTPUT Hp4396 OUTPDATA ENTER Dt USING 8A Head ENTER Dt Dat ENTER Dt USING 1A Dum When iBASIC is used delete this line Modify Error Corrected Data Restore Error Corrected Data OUTPUT 0Hp4396 INPUDATA OUTPUT ODt USING 8A Head OUTPUT ODt Dat END ASSIGN Dt TO END Figure 5 3 Sample Program To Modify Error Corrected Data This program measures the DUT reads the obtained data and restores the data in the analyzer For details on how to read the data array see Chapter 4 For information on how to modify the trace on the display see the To Modify Calibration Data example 5 6 Writing Data Arrays to the Analyzer Read Error Corrected Data 230 240 250 260 270 280 290 300 310 320 330 Read Error Corrected Data DIM Dat 1 801 1 2 When iBASIC is used change 801 to 802 OUTPUT 0Hp4396 POIN ENTER Hp4396 Nop When iBASIC is used delete these lines REDIM Dat 1 Nop 1 2 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used OUTPUT 0Hp4396 FORMS3 change 717 to 800 OUTPUT 0Hp4396 OUTPDATA ENTER Dt USING 8A Head ENTER Dt Dat ENTER Dt USING 1A Dum When iBA
53. 200 ELSE 210 Stor dev DISK 220 END IF 230 OUTPUT Hp4396 CWD 240 ENTER Hp4396 Curr_dir 250 PRINT amp Stor_dev amp amp Curr_dir 260 PRINT Size byte File Name 270 PRINT 280 OUTPUT Hp4396 FNUM 290 ENTER 0Hp4396 File count 300 IF File count gt 1 THEN 310 FOR I 1 TO File count 320 OUTPUT 0Hp4396 FNAME I 330 ENTER Hp4396 File_name 340 OUTPUT 0Hp4396 FSIZE amp File_name amp 350 ENTER 0Hp4396 File size 360 PRINT USING XX DDDDDD XXXX K File size File name 370 NEXT I 380 END IF 390 SUBEND Figure 11 10 Sample Program Displaying List of Files in Current Directory of 4396B Line 70 calls the subprogram to display the list of the files in the current directory Lines 160 to 250 check the storage device currently selected and its current directory name and then display the result Lines 280 to 290 check the number of the files in the current directory If there are any files in the current directory lines 300 to 380 check the name and size of every file and display them Using Application Programs 11 15 The following is the output result of the program assuming that the selected storage device is the memory disk and the current directory TEST contains 2 files FILE1 STA size 24576 bytes and FILE2 TIF size 16384 bytes and 1 directory DIR1 For size of a directory 1 is displayed To view the list of the files in DIR1 use the CHAD command to change the current directory to DIR1 and
54. 330 OUTPUT Hp4396 FORM3 340 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used 350 OUTPUT 0Hp4396 OUTPDTRC change 717 to 800 360 ENTER Dt USING 8A Dum 370 ENTER Dt D 380 ENTER Dt USING 1A Dum 390 400 Fch_1 Fcent Fadj 410 Fch_h Fcent Fadj 420 Pc FNPower D Fspan Fcent Fs Nop Fcent 430 Pl FNPower D Fspan Fch_1 Fs Nop Fcent 440 Ph FNPower D Fspan Fch_h Fs Nop Fcent 450 460 OUTPUT 0Hp4396 MKR ON SMKR1i ON SMKR2 ON 470 OUTPUT 0Hp4396 MKRPRM Fcent 480 OUTPUT 0Hp4396 SMKRPRM1 Fch 1 490 OUTPUT 0Hp4396 SMKRPRM2 Fch h 500 PRINT Carrier MHz Fcent 1 E 6 510 PRINT Power dBm Pc 520 PRINT 530 PRINT Adjacent Channel Freq Lo Hz Fch 1 540 PRINT Hi Hz Fch_h 550 PRINT 560 PRINT Adjacent Pow P1l Pc dBc P1 Pc 570 PRINT Ph Pc dBc Ph Pc 580 DISP PROGRAM FINISHED 590 END 600 610 DEF FNPower D Fspan Fch Fs Nop Fcent 620 Fdelta Fspan Nop 1 630 Ich Fch Fcent Fdelta 401 640 I1 Ich Fs 2 Fdelta 650 I2 Ich Fs 2 Fdelta 660 IF I1 lt 1 OR 12 gt Nop THEN 670 P 0 680 RETURN P 690 END IF 700 S 0 710 FOR I I1 TO 12 720 S S 10 D 1 10 Sin mW 730 NEXT I 740 P S Fspan Nop 1 750 P 10 LGT P P in dBm 760 RETURN P FNEND Figure 11 4 Sample Program Adjacent Channel Power Calculation 2 2 Using Application Programs 11 5 Lines 50 to 100 set the measurement coefficient Fadj Fs frequency span resolution bandwidth
55. 4396 CLES OUTPUT Hp4396 ROPEN Src_file IF FNCheck error 0Hp4396 lt CPFI ropen gt 1 THEN SUBEXIT LOOP OUTPUT 0Hp4396 READ ENTER 0Hp4396 USING 2A Dmy ENTER Hp4396 USING 6A Len Block size VAL Len I IF Block_size 0 THEN ENTER Hp4396 USING A Dmy ASSIGN Dst_file TO x OUTPUT Hp4396 CLOSE SUBEXIT END IF I ALLOCATE Dat Block_size Img amp VAL Block_size amp A ENTER Hp4396 USING Img Dat ENTER Hp4396 USING A Dmy OUTPUT Dst_file USING Img Dat DEALLOCATE Dat I IF FNCheck error Hp4396 lt CPFI read gt 1 THEN SUBEXIT END LOOP SUBEND Instrument Error Check DEF FNCheck error Hp4396 Str DIM Err 64 OUTPUT 0Hp4396 OUTPERRO ENTER Hp4396 Err IF Err 0 No error THEN ELSE PRINT ERROR Str sErr RETURN 1 RETURN O END IF FNEND Lines 80 to 140 accept the entry of the source file name and the destination file name Line 160 calls the subprogram to transfer a file from the 4396B to the external controller Lines 250 to 290 prepare for writing to the destination file Lines 310 to 340 prepare for reading the source file to the external controller Line 370 executes the query command to read data Lines 380 to 400 read the part indicating the length of the fixed length block data see Figure 11 8 to obtain the length of the data to be transferred Lines 420 to 470 check the data length If the data length is 0 t
56. 6 LABEL File Page 6 GOSUB Jump6 ON KEY 7 LABEL NEXT PAGE GOTO Jump7 ON KEY 8 LABEL PREV PAGE GOTO Jumps LOOP END LOOP Jump1 GET File Page 1 Jump2 GET File Page 2 Jump3 GET File Page 3 Jump4 GET File Page 4 Jump5 GET File Page 5 Jump6 GET File Page 6 Jump IF Npage lt Max page THEN Npage Npage 1 GOTO Head Jump8 IF Npage gt 1 THEN Npage Npage 1 GOTO Head END Figure 6 9 Loading Instrument BASIC Programs Using Softkeys Application Programs 6 7 Program I O This chapter describes how to write programs that use the LCD the I O port the external RUN CONT connector in the analyzer and the DOS file system Topics covered in this chapter are Graphics Using the external RUN CONT connector File system exceptions E E E a Using the I O port in BASIC programs Graphics Instrument BASIC adds graphics capability to the analyzer You can draw pictures on the LCD display independent of the grids and traces The analyzer has two screens the instrument screen and the graphics screen These two screens are always displayed together on the LCD and are not separately selectable The instrument screen consists of a trace display area and a softkey label area The Instrument BASIC editor is also displayed on the trace display area The graphics screen covers the entire instrument screen as shown in Figure 7 1 The graphics screen is like an independent transparent overlay in front of
57. 717 When iBASIC is used change 717 to 800 I CLEAR SCREEN PRINT USING 10A 15A 15A 15A Segment Swp Prmtr Hz Upper Lower I DIM Table 1 18 1 3 INPUT Enter number of segments lt 18 Numb FOR I 1 TO Numb GOSUB Loadlimit NEXT I I LOOP INPUT Do you want to edit Y N An EXIT IF An N OR Ang n INPUT Enter segment number lt 18 I IF Numb lt I THEN Numb I GOSUB Loadlimit END LOOP 1 OUTPUT 0Hp4396 EDITLIML OUTPUT 0Hp4396 LIMCLEL FOR K 1 TO Numb OUTPUT 0Hp4396 LIMSADD OUTPUT 0Hp4396 LIMPRM Table K 1 OUTPUT 0Hp4396 LIMU Table K 2 OUTPUT 0Hp4396 LIML Table K 3 OUTPUT 0Hp4396 LIMSDON NEXT K OUTPUT 0Hp4396 LIMEDONE OUTPUT 0Hp4396 LIMILINE ON INPUT Connect DUT and press Enter Dum Figure 8 1 Sample Program Limit Test 1 2 Programming Limit Test from Remote 8 1 360 OUTPUT 0Hp4396 CLES 370 OUTPUT Hp4396 SRE 4 ESNB 1 380 ON INTR 7 GOTO Sweep end When iBASIC is used change 7 to 8 390 ENABLE INTR 7 2 1 400 OUTPUT Hp4396 SING 410 Measuring GOTO Measuring 420 Sweep_end 430 OUTPUT Hp4396 LIMITEST ON 440 DIM Dt 1 801 1 4 450 OUTPUT Hp4396 OUTPLIMF Output test results 460 ENTER Hp4396 USING K Dt 1 470 OUTPUT Hp4396 0UTPFAIP 480 ENTER Hp4396 Failp 490 IF Failp 0 THEN Passed 500 PRINT FAIL POINTS 510 FOR I 1 TO Failp 520 PRINT 530 PRINT Swp prmtr Dt I 1 540 PRINT Results Uppe
58. ASIC Program 120 OUTPUT Hp4396 PROG EXEC RUN Line 120 runs the following program in the Instrument BASIC editor 10 MSI INTERNAL 20 GET FIG3_3 30 END Line 20 retrieves the FIG3_3 program and at the same time runs the program To Transfer the Program to Instrument BASIC Figure 7 4 To Transfer the Program to iBASIC on External Controller ABORT 7 ASSIGN Hp4396 TO 717 INPUT FILENAME File_name OUTPUT Hp4396 PROG DEL ALL OUTPUT Hp4396 PROG DEF 0 ASSIGN File TO File_name ON ERROR GOTO Done DIM Line 1024 LOOP Lineg ENTER File Line OUTPUT Hp4396 Line END LOOP Done OFF ERROR OUTPUT Hp4396 END END Figure 7 4 Sample Program To Transfer the Program to Instrument BASIC on External Controller This Program transfers the program file in the mass storage of the external controller Before you run this program confirm that the file to be transferred is on the mass storage device Open the Instrument BASIC Editor 70 OUTPUT Hp4396 PROG DEL ALL 80 OUTPUT 0Hp4396 PROG DEF 0 Scratch any program that currently exists in the analyzer s Instrument BASIC editor and open the editor Controlling Instrument BASIC from Remote 7 5 Transfer the Program 90 ASSIGN File TO File name 100 ON ERROR GOTO Done 110 DIM Line 1024 120 LOOP 130 Line 140 ENTER File Line 150 OUTPUT 0Hp4396 Line 160 END LOOP Transfer the program by line to the analyzer
59. AT under FILE UTILITIES under Gave 9 2 Analyzer Specific Instrument BASIC Features GPIB Commands for Instrument BASIC The PROGram subsystem commands of the analyzer s GPIB commands are used to control Instrument BASIC The PROGram subsystem commands do the following m Download the program from an external controller to the analyzer m Upload the program from the analyzer to an external controller m Delete the program on the BASIC editor of the analyzer m Execute the program on the BASIC editor of the analyzer m Set or query the variables and arrays in the program on the BASIC editor of the analyzer m Set or query the state of the program on the BASIC editor of the analyzer See the GPIB Command Reference for more information and the Programming Guide for their usage example Note The PROGram subsystem commands can be used from an external controller i only w Analyzer Specific Instrument BASIC Features 9 3 Manual Changes Introduction This appendix contains the information required to adapt this manual to earlier versions or configurations of the analyzer than the current printing date of this manual The information in this manual applies directly to the 4396B Network Spectrum Impedance Analyzer serial number prefix listed on the title page of this manual Manual Changes To adapt this manual to your 4396B see Table A 1 and Table A 2 and make all the manual changes listed opposite your instrume
60. Agilent 4396B Network Spectrum Impedance Analyzer GPIB Programming Guide SERIAL NUMBERS This manual applies directly to instruments with serial number prefix JPIKE For additional important information about serial numbers read Serial Number in Appendix A o Agilent Technologies Agilent Part No 04396 90063 Printed in Japan May 2003 Sixth Edition Notice The information contained in this document is subject to change without notice This document contains proprietary information that is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of the Agilent Technologies Agilent Technologies Japan Ltd Component Test PGU Kobe 1 3 2 Murotani Nishi ku Kobe shi Hyogo 651 2241 Japan Copyright 1997 1998 2000 2002 2003 Agilent Technologies Japan Ltd Manual Printing History The manual s printing date and part number indicate its current edition The printing date changes when a new edition is printed Minor corrections and updates that are incorporated at reprint do not cause the date to change The manual part number changes when extensive technical changes are incorporated March 1997 aaaeeeaa First Edition part number July 1997 ce Second Edition part number March 1998 1 00 0 ccc cc cece ete ees Third Edition part number March 2000 aeaaeae aaaea arrere Fourth Editio
61. C is used delete this line The controller can read out the error coefficients using the GPIB commands QUTPCALC 1 12 Each point is a real imaginary pair and the number of points in the array is the same as the number of points in the sweep For details on data transfer see Chapter 4 Each calibration type uses only as many arrays as needed starting with array 1 and each array stores a specific error coefficient Therefore it is necessary to know the type of calibration about to be read out attempting to read an array not being used in the current calibration causes the REQUESTED DATA NOT CURRENTLY AVAILABLE warning to be displayed For assignment of data arrays see the GPIB Command Reference manual 5 2 Writing Data Arrays to the Analyzer Modify Calibration Data 400 410 1 Modify Calibration Data 420 1 In this portion of program you modify the CALIBRATION COEFFICIENT ARRAY which is contained in Dat 1 801 1 2 Restore Modified Calibration Data 430 Restore Calibration Data 440 OUTPUT 0Hp4396 INPUCALC1 450 OUTPUT ODt USING 8A Head 460 OUTPUT ODt Dat END Line 440 opens the CALIBRATION COEFFICIENT ARRAY 1 in the analyzer This array is used to restore the data Lines 450 and 460 send the file header Head calibration data Dat and the terminator END The file header is an input in line 370 This example sets the trigger to HOLD at line 120 The analyzer does not redraw the trace with the new
62. CALIBRATION COEFFICIENT ARRAYS when the trigger is set to HOLD You can redraw the trace by issuing the GPIB command SAVC For details see the Redrawing Measurement Trace with Modified Calibration Data description Writing Data Arrays to the Analyzer 5 3 What is a file header When using the binary data transfer format the transferred data must be accompanied by the file header that represents the data length In this example the data transfer format is FORMS and the transferred data is configured as follows 6 No of bytes Binary data Binary data followed y Complex data only 6 bytes 8 bytes 8 bytes file header ata FORMS Data Transfer Format If you are not reading the header you can create it using the number of data points Change the program lines 440 to 460 as follows 440 OUTPUT Hp4396 POIN 441 ENTER 0Hp4396 Nop 442 V VAL Nop 2 8 443 Numv LEN V 444 Head 000000 445 FOR I 1 TO Numv 446 Head 7 1 7 1 V Numv I 1 Numv I 1 447 NEXT I 448 449 OUTPUT Hp4396 INPUCALC1 450 OUTPUT ODt USING 8A 6 amp Head 460 OUTPUT ODt Dat END Lines 440 to 442 calculate the number of bytes transferred 8 byte for real part 8 byte for imaginary part and represents it in the string format Line 443 counts the number of characters in the string that contains the number of bytes transferred Line 444 enters 0 as the initial val
63. EXECUTE SING the EXECUTE command does not terminate normally In the worst case a system halt occurs To avoid this problem it is necessary to use an SRQ interrupt technique that uses the status register In this case the external controller waits to send query commands until Instrument BASIC completes the execution of the EXECUTE command m For External Controller 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 ON INTR Start Waiting Anaend END REAL Meas 1 ASSIGN Hp4396 TO 717 OUTPUT Hp4396 CLS 0PC ENTER 0Hp4396 0pc OUTPUT Hp4396 0SPT 0 7 GOTO Anaend OUTPUT 0Hp4396 PROG STAT RUN 1 OUTPUT Hp4396 CLS 0PC ENTER Hp4396 Opc ENABLE INTR 7 2 GOTO Waiting OUTPUT Hp4396 PROG NUMB MEAS ENTER Hp4396 Meas PRINT Meas OUTPUT Hp4396 CLS 0PC OUTPUT 0Hp4396 PROG STAT CONT GOTO Start a For Instrument BASIC 10 20 30 40 50 60 70 80 90 100 110 120 LOOP EXECUTE EXECUTE EXECUTE Meas 0 Meas 1 PAUSE END LOOP REAL Meas 1 ASSIGN Hp4396 TO 800 OUTPUT Hp4396 0SE 16384 05NT 16384 SRE 128 1 ANAOCH1 ANAODATA ANARFULL SING OUTPMAX READIO 8 0 READIO 8 1 B 6 BASIC Commands Specific to 4396B READIO Keyboard Executable Yes Programmable Yes InanIF THEN Yes This command reads the contents of the register used for an I O port or EXECUTE command
64. IC Users Handbook Example programs for ON KEY LABEL keys are shown in Chapter 6 Special Features and Advanced Techniques 8 1 Increasing Program Speed Because the analyzer s CPU interleaves processing measurements and executing a program program execution speed depends on the measurement conditions The display process also requires processing time To increase program speed increase throughput set the analyzer to the following conditions a If you do not need to measure the DuT when executing a program set TRIGGER MODE to HOLD m If you need to measure the pur but do not need to display the traces on the screen set DISPLAY ALLOCATION to ALL BASIC m If you need to measure the DuT and display traces but do not need to use the marker function preset all markers m When you use the I O port use the READIO and WRITEIO commands to input or output data to the port directly a If you change channels in a program set Dual Channel to ON before changing channels to avoid the setup time for the channel For example when you change channels in a program set Dual Channel to ON and Display Allocation to All BASIC to decrease the switching time between channels 1 and 2 8 2 Special Features and Advanced Techniques Analyzer Specific Instrument BASIC Features This chapter lists and summarizes the Instrument BASIC features specific to the analyzer Details of each feature are described in the previous chapters and in the ap
65. ING 8A Head OUTPUT ODt Dat END Line 380 opens the DATA TRACE ARRAYS in the analyzer to restore the data Lines 390 and 400 transfer data in FORMS a similar procedure is used in the To Modify Calibration Data example Writing Data Arrays to the Analyzer 5 9 Printing or Plotting the Analyzer s Display This chapter describes how to print the information on the analyzer display using GPIB commands To Print Analyzer Display Printer Preparation 1 Connect a printer using a parallel cable 2 Turn the printer on Execute Print To print the screen execute the folowing command OUTPUT 800 PRINALL Set the GPIB address when you execute from an external controller To Observe Printing The Basic program shown below gives an example to detect printing end by using a SRQ interrupt Printing or Plotting the Analyzer s Display 6 1 Figure 6 1 To Observe Printing ASSIGN Hp4396 TO 800 1 OUTPUT 0Hp4396 CLES OUTPUT Hp4396 0SNT 512 ICatch High to Low Transition OUTPUT Hp4396 0SPT 0 Disable Low to High Transitions OUTPUT 0Hp4396 0SE 512 Enable OS Event Reg OUTPUT Hp4396 SRE 128 Enable OSR bit ON INTR 8 GOTO Lat ENABLE INTR 8 2 OUTPUT 0Hp4396 PRINALL Lat GOTO Lat DISP PRINT COMPLETE END Figure 6 1 Sample Program To Observe Printing 6 2 Printing or Plotting the Analyzer s Display Controlling Instrument BASIC from Remote This chapter is f
66. LL BASIC The screen is cleared and all of the screen area is allocated for Instrument BASIC 3 Press the following softkey ALL INSTRUMENT The total screen area is reallocated as the analyzer display 4 Press the following softkey HALF INSIR HALF BASIC The screen area is allocated so that the upper half of the screen is used for the analyzer operation and the lower half is used for Instrument BASIC 5 Press the following softkey BASIC STATUS Three blank lines appear at the display line lower area of the screen This area is used by Instrument BASIC to input commands and to display messages Introduction to the System 2 3 More information on the display allocations for the Instrument BASIC area is described in Display in Appendix D Setting the Size of Memory Area for Instrument BASIC The size of the memory areas for the RAM disk memory and the variable of Instrument BASIC excluding common variables can be changed according to your application Caution When the memory partition is reconfigured the analyzer goes to the initial settings That is the RAM disk memory is initialized and all the data saved in the RAM disk memory is destroyed and the program on the BASIC editor is destroyed Let s try 1 Press the following key and softkey MEMORY PARTITION nm K RAM A aK BAS IG MEMORY mmK RAM PARTITION an K BASIC I amk RAM nK BASIC mm K RAM nK BASIC mm K RAM mK BASIC DONE
67. M disk memory is initialized and all the data saved in the RAM disk memory is destroyed and the program on the BASIC editor is destroyed Softkeys Used for Instrument BASIC Operation D 5 DISPLAY ALLOCATION Displays the following menu to allocate the BASIC screen area on the display MORE ALL INSTRUMENT HALF INSTR HALF BASIC DISPLAY l gt ALL ALLOCATION BASIC BASIC STATUS RETURN C5502001 Figure D 3 Display Allocation Menu ALL INSTRUMENT Selects a full screen single screen or two half screen graticules HALF INSTR HALF BASIC Selects two half screens one graticule display above the Instrument BASIC display ALL BASIC Selects a full screen single Instrument BASIC display BASIC STATUS Selects a full screen graticule and three status lines for Instrument BASIC under the graticule D 6 Softkeys Used for Instrument BASIC Operation Instrument Area RUN LIGHT ALL INSTRUMENT e 62 colums gt 24 lines Print Out Area Display Line Keyboad Input Line j System Display Line RUN LIGHT ALL BASIC CS50COM Co N 52 TS Instrument Area m 62 colums Print Out Area Display Line Keyboad Input Line System Display Line 12 lines RUN LIGHT NN ED TS Instrument Area Display Line Keyboad Input Line System Display Line HALF INSTR HALF BASIC RUN LIGHT BASIC STATUS
68. REPEAT 110 OUTPUT Hp4396 INP8I0 120 ENTER Hp4396 Inpio Waiting Handler Response 1 The INP810 command returns the 4 bit data value of the IN 0 3 lines Lines 100 to 160 wait for the external handler to set signal on line IN 3 to TRUE 1 Controller GPIB command INPBIO e I O port DDD Seg O E INO 3 lo ogla anon rest ooocoo zepa TTL signal handler ao eee E 4 bit data 1 CB301002 Figure 10 5 Reading Signal from the External Handler Using the Analyzer s 1 0 Port 10 3 11 Using Application Programs This chapter provides the following sample programs m For your convenience when calculating the following spectrum analysis factors a Total Harmonic Distortion THD o Adjacent Channel Power o Occupied Bandwidth m For your convenience when using the file transfer function o File transfer from the 4396B to the external controller o File transfer from the external controller to the 4396B O Listing of the files in the current directory of the 4396B Total Harmonic Distortion Most transmitting devices and signal sources contain harmonics as shown in Figure 11 1 CHL S Spectrum 10 dB Y REF O dBm Ww
69. Read o Check the disk 1 Put the disk into the disk drive and type as follows CAT 2 Press Return If error message is displayed the disk is corrupted or the disk format does not match Use another disk COMPUTER Tf you are using the external controller BASIC uses the LIF format but doesn t use DOS format Instrument f BASIC uses both the LIF and the DOS format Try again on using Instrument BASIC m Check the mass storage 1 Put the disk into the disk drive and type as follows SYSTEM MSI 2 Press Return C580 700 O mass storage volume specifier 3 If the mass storage volume does not match your disk drive use the MSI statement to set it to match BASIC If you are using Instrument BASIC To use the built in disk drive mass storage volume specifier must be 4 12 2 If You Have a Problem o Check the file type 1 Put the disk into the disk drive and type as follows CAT 2 Press Return CAT FILE NAME PRO TYPE REC FILE BYTE REC ADDRESS DATE TIME FIG1_3 ASCII 6 256 34 22 Jun 92 11 00 FIG2_2 PROG 6 256 34 22 Jun 92 11 00 FIG2 3 ASCII 6 256 34 22 Jun 92 11 00 BASIC If you are using Instrument BASIC Only an ASCII type program file can be saved and read Use the SAVE GET commands to save and read ASCII files COMPUTER Tf you are using BASIC e To read ASCII type
70. SIC is used delete this line OUTPDATA command line 300 retrieves DATA ARRAYS in the analyzer For details on data transfer see Chapter 4 Restore Modified Error Corrected Data 370 380 390 400 Restore Error Corrected Data OUTPUT 0Hp4396 INPUDATA OUTPUT ODt USING 8A Head OUTPUT ODt Dat END Line 380 opens the DATA ARRAYS in the analyzer to restore the data Lines 390 to 400 transfer data in FORMS a similar procedure is used in the To Modify Calibration Data example Writing Data Arrays to the Analyzer 5 7 To Modify Trace Data Figure 5 4 To Modify Trace Data ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 PRES OUTPUT 0Hp4396 NA INPUT Enter center frequency Hz F cent INPUT Enter frequency span Hz F span OUTPUT 0Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span INPUT Connect DUT and press RETURN Dum OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 Set enable STB and ESB ON INTR 7 GOTO Sweep_end When iBASIC is used ENABLE INTR 7 2 change 7 to 8 OUTPUT Hp4396 SING Measuring GOTO Measuring Sweep_end DISP Measurement Complete Read Trace Data DIM Dat 1 801 1 2 When iBASIC is used change 801 to 802 OUTPUT Hp4396 POIN ENTER Hp4396 Nop When iBASIC is used delete these lines REDIM Dat 1 Nop 1 2 1 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used OUTPUT
71. TPUT 0Hp4396 0OUTPFAIP 480 ENTER Hp4396 Failp 490 IF Failp 0 THEN Passed 500 PRINT FAIL POINTS 510 FOR I 1 TO Failp 520 PRINT 530 PRINT Swp prmtr Dt I 1 540 PRINT Results Upper Lower 550 PRINT TAB 5 Dt 1 2 TAB 17 Dt 1 3 TAB 32 Dt 1 4 560 NEXT I 570 Passed 580 DISP Program End The QUTPLIMF command in line 450 returns the limit test result for failed points The test results are in the following order sweep parameter result O for fail 1 for no test upper limit and lower limit The OUTPFAIP command in line 470 returns the number of failed points When the limit test result is PASS it returns 0 and the program goes to Passed Then the array Dt is printed with as many lines as the transferred data Lines 510 to 560 print the limit test result as follows Swp Prmtr Hz 1 1925E 7 Result Upper 0 20 Swp Prmtr Hz 1 2125E 7 Result Upper 0 20 What are other Instead of reading the limit test results for failed points by commands used to using the OUTPLIMF command you can read out the test retrieve the test result using the following commands results e At all measurement points OUTPLIML e At marker position OUTPLIMM Both commands return the sweep parameter result 1 for pass 0 for fail 1 for no test upper limit and lower limit 8 4 Programming Limit Test from Remote Using the List Sweep Function This chapter describes how to use the list sw
72. TPUT 0Hp4396 0OUTPMKR Output marker value 410 ENTER Hp4396 Vali Val2 Swp Line 400 the measured data is transferred to the controller For details about data transfer see Chapter 4 To Execute an GPIB Command with a Parameter Some GPIB commands require a numeric parameter For example OUTPUT 0Hp4396 CENT 25000000 Set center frequency to 25 MHz The space between the command and the numeric parameter is mandatory You can program it to be entered each time the program is run For example 100 INPUT Enter center frequency Hz F_cent 110 OUTPUT Hp4396 CENT F_cent Executing this Enter center frequency Hz 25000000 The analyzer s center frequency is set to 25 MHz To Execute a Query Any GPIB command that is used with a numeric parameter can also be used as query command For example the CENT numeric parameter command used in the previous example can be combined with a and used as a query command as follows 10 OUTPUT Hp4396 CENT 20 ENTER Hp4396 A 30 PRINT A The CENT command returns the current center frequency which is put into A Executing this program results in the following 25000000 By interrogating the analyzer to determine the values of the start and stop frequencies or the center frequency and frequency span the computer can keep track of the actual frequencies 1 8 Learning GPIB Remote Control Basics Triggering the Analyzer from Remote This chapter describ
73. Trace Using Binary Format 2 2 2 Set the Receive Array oaoa a a A Set Data Transfer Format ccccccccc a Read Data clic Set the Receive Array 0 0 ee a Set Data Transfer Format 2 2 ee a Read Data clic 5 Writing Data Arrays to the Analyzer To Modify Calibration Data o a a a a a a a e Read Calibration Data oaoa a a a a a Modify Calibration Data oaa a a a a Restore Modified Calibration Data a a a a a a a a Redrawing Measurement Trace with Modified Calibration Data To Modify Error Corrected Data oaoa a a a a Read Error Corrected Data ao a a a a a a a e Restore Modified Error Corrected Data a a a a a a a ee a To Modify Trace Data n a a a a Read Trace Data 2 a a a a a a Restore Modified Trace Data a a a a a a a A 6 Printing or Plotting the Analyzer s Display To Print Analyzer Display oaoa aa a A Printer Preparation aoaaa a a a Execute Print oaa A To Observe Printing oao oaa a a a 7 Controlling Instrument BASIC from Remote To Control GPIB from Instrument BASIC aoao a a e To Execute an Instrument BASIC Command from the External Controller To Run an Instrument BASIC Program From the External Controller Open the Instrument BASIC Editor a a a a a a a a a a Send the Instrument BASIC Program a a a a a a Close the Instrument BASIC Editor aoa a a a a a a Run the Instrument BASIC Program oaoa a a e
74. UTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 ON INTR 7 GOTO Sweep_end When iBASIC is used change 7 to 8 ENABLE INTR 7 2 OUTPUT Hp4396 SING Trigger a Measurement Measuring GOTO Measuring Measuring Sweep_end OUTPUT Hp4396 MKR ON OUTPUT 0Hp4396 SEAM MAX OUTPUT 0Hp4396 OUTPMKR ENTER 0Hp4396 Vali Val2 Swp PRINT Max Val Vali dB PRINT Swp Prmtr Swp H2 END Figure 4 1 Sample Program To Read Data Using Marker Search Function Search Maximum Value 190 OUTPUT Hp4396 MKR ON 200 OUTPUT Hp4396 SEAM MAX Line 190 activates the marker and line 200 moves the marker to the maximum value on the trace CH4 Spectrum 10 5 dB REF 5 2 dBm 12 116 dBm 9 9558145 MHz Ri i RBW 30 HZ VBW 30 HZ ATN 10 dB SWP 4 774 sec CENTER 10 MHz SPAN 150 kHz Marker on Trace 4 2 Reading Measurement Data What are the other You can activate sub markers and the Amarker using the marker commands following commands SMKR 1 7 ON DMKR ON FIX TRAC You can move the marker using the following commands e specified sweep parameter MKRPRM parameter e specified measurement point MKRP parameter You can move sub markers using the following commands e specified sweep parameter SMKRPRM 1 7 parameter e specified measurement point SMKRP
75. Vh 107 Vh 10 05 Vh 2 in V 2 PRINT I harmonic Figure 11 2 Sample Program Total Harmonic Distortion THD 1 2 11 2 Using Application Programs 320 S 5 Vh 330 I I 1 340 END LOOP 350 1 360 Done 370 Thd SQR S V 100 380 PRINT THD Thd 390 DISP PROGRAM FINISHED END Figure 11 2 Sample Program Total Harmonic Distortion THD 2 2 In line 120 the marker searches for the fundamental frequency In lines 200 to 340 the marker searches for the harmonics on the analyzer display and integrates the squares Line 370 calculates the THD and line 380 prints the result Using Application Programs 11 3 Adjacent Channel Power Calculation The adjacent channel power measurement examines the leakage power transmitted into an adjacent channel that is the channel next to the carrier channel This program calculates the adjacent channel power leakage ratio to the power of the transmitter Pl Pc Ph Pc in dBc cH1 S Spct Hz 10 dB REF 30 dBm 45 514 dEm Hz ado MHz Pc Power of carrier Pl Power of lower adjacent channe Ph Power of upper adjacent channe Fcent Carrier frequency Fch Lower adjacent channel frequency
76. _file TO 440 OUTPUT Hp4396 CLOSE 450 SUBEXIT 460 CASE ELSE 470 Block size Src size Xfr done Figure 11 9 Sample Program File Transfer from External Controller to 4396B 1 2 Using Application Programs 11 13 480 END SELECT 490 Xfr done Xfr done tBlock size 500 510 ALLOCATE Dat Block_size 520 530 Img amp VAL Block_size amp A 540 ENTER Src_file USING Img Dat 550 560 Img 8A ZZZZZZ amp VAL Block_size amp A 570 OUTPUT 0Hp4396 USING Img WRITE 6 Block_size Dat END 580 DEALLOCATE Dat 590 IF FNCheck error 0Hp4396 lt CPTI write gt 1 THEN SUBEXIT 600 END LOOP 610 SUBEND 620 630 Instrument Error Check 640 650 DEF FNCheck error Hp4396 Str 660 DIM Err 64 670 OUTPUT 0Hp4396 OUTPERRO 680 ENTER Hp4396 Err 690 IF Err 0 No error THEN 700 PRINT ERROR Str sErr 710 RETURN 1 720 ELSE 730 RETURN O 740 END IF 750 FNEND Figure 11 8 Sample Program File Transfer from External Controller to 4396B 2 2 Lines 80 to 180 accept the entry of the source file name and its size and the destination file name Line 200 calls the subprogram to transfer a file from the external controller to the 4396B Lines 340 to 350 prepare for writing the file to the destination storage device Lines 390 to 480 calculate the length of the data that has not been transferred based on the source file size previously entered and th
77. a Cho Hachioji Shi Tokyo 192 8510 Japan tel 81 426 56 7832 fax 81 426 56 7840 Latin America Agilent Technologies Latin American Region Headquarters 5200 Blue Lagoon Drive Suite 4950 Miami Florida 33126 U S A tel 305 267 4245 fax 305 267 4286 Australia New Zealand Agilent Technologies Australia Pty Ltd 347 Burwood Highway Forest Hill Victoria 3131 tel 1 800 629 485 Australia
78. al to four meters The total length of cable in one bus system must be less than or equal to two meters times the number of devices connected on the bus the GPIB controller counts as one device The total length of cable must not exceed 20 meters Star linear and combinational cable configurations are allowed There must be no loop Star Linear It is recommended that no more than four piggyback connectors be stacked together on one device Otherwise the resulting structure could exert enough force on the connector mounting to damage it Learning GPIB Remote Control Basics 1 3 GPIB Commands Introduction All the analyzer s front panel keys have a corresponding GPIB command By executing an GPIB command you can operate the analyzer as if you were pressing the corresponding key For example Pressing is the same as executing the GPIB command PRES Note Each of the analyzer s functions has two corresponding GPIB commands i One is unique to analyzer and the other corresponds to the SCPI Standard 3 Commands for Programmable Instruments standard In this guide only the commands that are unique to the analyzer are described For example you can use either NA which is unique to the analyzer or INST TYPE NA which conforms to SCPI to select the analyzer type For details on SCPI see GPIB Command Reference To Execute an GPIB Command Combine the BASIC OUTPUT statement with the GPIB select code the
79. alyzer can cause a service request SRQ By setting bit O of the Event Status Enable Register B to 1 the occurrence of the corresponding event sweep end sets bit O of the Event Status Register B When this bit is set and is enabled it is used to set a summary bit in the Status Byte Register bit 2 Also because bit 2 of Service Request Enable Register is set setting the corresponding bit Event Status Register B summary bit generates an SRQ The SRQ sets bit 6 of the Status Byte Register Enable SRQ Interrupt 80 ON INTR 7 GOTO Sweep end When iBASIC is used change 7 to 8 90 ENABLE INTR 7 2 1 120 Sweep end Line 80 defines a branch When the SRQ interrupt is generated from the GPIB interface whose select code is 7 the controller goes to Sweep end Line 120 Line 90 enables an interrupt from interface 7 GPIB when bit 1 SRQ bit of the interrupt register of the controller is set by a value of 2 See the GPIB Command Reference for additional information Wait Until Measurement Is Done 100 OUTPUT 0Hp4396 SING 110 Measuring GOTO Measuring In line 100 the SING command triggers a measurement and the analyzer starts a sweep For details on how to trigger a measurement see Figure 2 3 The controller loops back in line 110 until an SRQ interrupt occurs Generate SRQ On a single sweep end bit O of the ESB is set which sets bit 2 of the Status Byte Register and an SRQ is generated 110 Measuring GOTO Me
80. asuring Loop until SRQ interrupt 120 Sweep_end At SRQ interrupt jump to here Once an SRQ is generated the SRQ interrupt is disabled 3 4 Synchronizing the Analyzer from Remote To Report Command Error Occurrence Figure 3 5 To Report Command Error Occurrence ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 DIM Err 30 OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 32 ESE 32 ON INTR 7 GOSUB Err_report When iBASIC is used ENABLE INTR 7 2 change 7 to 8 OUTPUT statement to send GPIB command GOTO Prog_end Err report OUTPUT Hp4396 OUTPERRO ENTER Hp4396 Err Err PRINT COMMAND ERROR DETECTED PRINT Err Err A SPOLL Hp4396 OUTPUT Hp4396 ESR ENTER Hp4396 Estat ENABLE INTR 7 When iBASIC is used change 7 to 8 RETURN Prog_end END Figure 3 5 Sample Program To Report Command Error Occurrence For details on SRQ interrupt see the To Wait for Sweep End example Enable Error Bit 70 OUTPUT Hp4396 CLES 80 OUTPUT Hp4396 SRE 32 ESE 32 Line 70 clears all bits of the Status Registers and Enable Registers In line 80 the command SRE 32 sets the Service Request Enable Register to 00100000 this enables bit 5 of the Status Byte Register The command ESE 32 sets the Standard Event Status Enable Register to 00100000 this enables bit 5 of the Standard Event Status Register see Figure 3 6 Synchronizing the Analyzer fr
81. ber 04396 900x1 The User s Guide walks you through system setup and initial power on shows how to make basic measurements explains commonly used features and typical application measurement examples After you receive your analyzer begin with this manual Task Reference Agilent Part Number 04396 900x0 Task Reference helps you to learn how to use the analyzer This manual provides simple step by step instructions without concepts Function Reference Agilent Part Number 04396 900x2 The Function Reference describes all function accessed from the front panel keys and softkeys It also provides information on options and accessories available specifications system performance and some topics about the analyzer s features Programming Guide Agilent Part Number 04396 900x3 The Programming Guide shows how to write and use BASIC program to control the analyzer and describes how Instrument BASIC works with the analyzer GPIB Command Reference Agilent Part Number 04396 900x4 The GPIB Command Reference provides a summary of all available GPIB commands It also provides information on the status reporting structure and the trigger system these features conform to the SCPI standard Option 010 Operating Handbook Agilent Part Number 04396 900x6 The option 010 Operation Handbook describes the unique impedance measurement functions of the 4396B with option 010 Instrument BASIC Manual Set Agilent Part Number 04155 90151 E2083
82. command is executed by the execute command To transfer GPIB command parameters use a WRITEIO command This command must be executed before the EXECUTE command One WRITEIO command is required to transfer one parameter For example to transfer two ANARANGE command parameters to the EXECUTE command write the program as follows WRITEIO 8 0 100E6 WRITEIO 8 1 200E6 EXECUTE ANARANG To receive a query command s return value use a READIO function The READIO function returns only one specified return value For example four return values Za Fa Zr and Fr of the query command OUTPRESO must be received by writing the program as follows EXECUTE QUTPRESO Za READIO 8 0 Fa READIO 8 1 Zr READIO 8 2 Fr READIO 8 3 o GPIB Commands that work differently when executed by the EXECUTE command When the following GPIB command is executed by the EXECUTE command it works differently than when it is executed by the QUTPUT command SING The 4396B executes EXECUTE SING to sweep once Execution of the next statement is suppressed until the sweep is completed Therefore the completion of the sweep need not be supervised using a status register BASIC Commands Specific to 4396B B 5 Note When both an external controller and Instrument BASIC are used at the same i time the EXECUTE command occasionally does not terminate normally If the external controller queries the instrument while the 4396B is sweeping when triggered by
83. controller you must use either the SING or the NUMG parameter command to synchronize the controller and the analyzer To use these commands see the To Trigger a Measurement From the Controller example To Trigger a Measurement From the Controller Two methods of triggering a measurement from the controller are shown in Figure 2 3 and Figure 2 4 Figure 2 3 To Trigger Measurement From Controller 1 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 50 OUTPUT Hp4396 TRGS INT 60 OUTPUT Hp4396 SING TO END Figure 2 3 Sample Program To Trigger a Measurement from Controller 1 Set Trigger Source 50 OUTPUT 0Hp4396 TRGS INT Set the trigger source to internal Trigger a Measurement 60 OUTPUT Hp4396 SING The analyzer changes to the Waiting for Trigger state In this program the internal source is selected and the analyzer immediately starts a measurement After the measurement the analyzer goes to the Idle state How can you perform When you set the averaging on you must also set the number averaging of measurements to the same value as the averaging factor For example if the averaging factor is 10 replace line 60 as follows 60 OUTPUT 0Hp4396 NUMG 10 Triggering the Analyzer from Remote 2 3 How can you wait for a When you want to return the measurement data to the measurement to be controller you must wait for the measurement to be completed completed F
84. device address and finally the analyzer command For example to execute PRES command type BASIC Using Instrument BASIC OUTPUT 800 PRES You can set any HP IB Bo address up to 31 HP IB address Select code internal HP IB interface And press Return The analyzer goes to the preset state COMPUTER Using an External Controller C5301002 ETA OUTPUT 717 PRES Select code HP IB address same number as you set in page 1 2 And press Return The analyzer is set to GPIB remote mode Then the analyzer goes to the preset state What is GPIB remote Executing an OUTPUT statement that is addressed to the mode analyzer sets it to the GPIB remote mode In the remote mode all the analyzer s front panel keys are locked out COMPUTER O except Local Pressing Local puts the analyzer back in local mode In local mode all front panel keys are enabled LN 14 Learning GPIB Remote Control Basics To Program a Basic Measurement This section describes how to organize the commands into a measurement sequence Figure 1 2 shows a typical program flow for a measurement Set I O Path Y Set Up the Measurement Parameters Y Perform Calibration Y Connect DUT Y Trigger a Measurement Y Post Processing Y Transfer Data cc Figure 1 2 Program Flow The following program performs the measuremen
85. djacent Channel Power Calculation 1 2 2 99 Occupied Power Bandwidth 080 22 2482 Sample Program Occupied Power Bandwidth Calculation 1 2 Contents 4 I WwWNre BRwWNrR OOD BB CO co BMD ON gt PR o amp ANAT I Nr Nw OM OTF 11 7 11 7 11 8 11 9 11 10 A 1 Sample Program File Transfer from 4396B to External Controller 1 2 Fixed length block format 2 ee A Sample Program File Transfer from External Controller to 4396B 1 2 Sample Program Displaying List of Files in Current Directory of 4396B Serial Number Plate Contents 5 Tables A 1 Manual Changes by Serial Number 2 ee ee ee ee A 2 Manual Changes by Firmware Version Lo a Contents 6 Learning GPIB Remote Control Basics This chapter provides information on how to configure the GPIB remote control system and the basic use of the GPIB commands In the examples used in this manual most of the commands are the simple GPIB commands For each of these commands there is also a corresponding command that conforms to the Standard Commands for Programmable Instruments scP1 standard For additional information of about all commands see the GPIB Command Reference manual What is GPIB The General Purpose Interface Bus arIB is used for remote control of the 4396B Network Spectrum Impedance Analyzer analyzer GPIB is a standard for interfacing instruments to computers a
86. e Reset command RST or PRES command clears all arrays e Data array writing command INPURAW 1 4 INPUDATA and INPUDTRC commands write the corresponding arrays These commands immediately reshape the data trace on the analyzer s display INPUCALC 1 12 commands write the CALIBRATION COEFFICIENT ARRAYS e DATA to MEMORY command DATMEM command restores the contents in DATA ARRAYS into MEMORY ARRAYS and the contents in DATA TRACE ARRAYS into MEMORY TRACE ARRAYS e Data processing command SAVC command executes the data processing CORRECTION with the current RAW ARRAYS and CALIBRATION COEFFICIENT ARRAYS The following examples show how to modify the DATA ARRAYS and DATA TRACE ARRAYS Writing Data Arrays to the Analyzer 5 5 To Modify Error Corrected Data Figure 5 3 To Modify Error Corrected Data ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT Hp4396 PRES OUTPUT Hp4396 NA INPUT Enter center frequency Hz F_cent INPUT Enter frequency span Hz F_span OUTPUT Hp4396 CENT F_cent OUTPUT Hp4396 SPAN F_span INPUT Connect DUT and press RETURN Dum OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 Set enable STB and ESB ON INTR 7 GOTO Sweep_end When iBASIC is used ENABLE INTR 7 2 change 7 to 8 OUTPUT Hp4396 SING Measuring GOTO Measuring Sweep_end DISP Measurement Complete Read Error Corrected Data DIM Dat 1 801 1
87. e built in disk drive is different from that of the RAM disk w Use the front panel key or enter an GPIB command to initialize the storage unit For the procedure for initialization using the front panel see Chapter 6 of the Task Reference When using an GPIB command to initialize the storage unit execute the following procedure ASSIGN Hp4396 TO 800 OUTPUT Hp4396 STODDISK Selects the built in disk drive OUTPUT Hp4396 DISF DOS Selects the DOS format OUTPUT 0Hp4396 INID Initializes the disk END Built in Flexible Disk Drive The analyzer s Instrument BASIC has the following disk drive limitations m Disk types which can be initialized by the analyzer s Instrument BASIC INITIALIZE statement is 1 44 MByte 2HD 720 Kbyte 2DD and 270 Kbyte disks cannot be initialized m The only INITIALIZE format option is the default 256 byte sector m DOS formats supported The DOS formats supported are 720 Kbyte 80 tracks double sided 9 sectors track 1 44 Mbyte 80 tracks double sided 18 sectors track a HFS format is not supported m External disk drives are not supported RAM Disk Memory A part of the RAM of the analyzer can be used as a virtual disk drive RAM disk memory RAM disk memory can be operated in the same way as the internal disk drive When the analyzer is turned OFF the data saved in the RAM disk is lost and the RAM disk memory is automatically initialized by the format that is set by FORM
88. e first letter then press SELECT LETTER Repeat this until the complete statement is entered then press DONE to execute the statement Introduction to the System 2 7 Writing and Running Programs This chapter describes how to write execute run and list programs The example program in this chapter also describes how to control the analyzer from an Instrument BASIC program Topics covered in this chapter are Getting into out of the EDIT mode Writing programs Running Executing programs m Listing programs Getting into out of the EDIT Mode When you write a program you must be in the EDIT mode For more information about the EDIT mode see Chapter 5 Getting into the EDIT Mode Press the following key and softkeys from the front panel System IBASIC Edit The system enters the EDIT mode You can also get into the EDIT mode from the keyboard Type and press as follows EDIT and press Enter Getting out of the EDIT Mode Press the following softkey from the front panel END EDIT The system exits the EDIT mode If END EDIT does not appear on the softkey menu press System IBASIC from the front panel END EDIT will appear at the bottom of the menu You can also get out of the EDIT mode from the keyboard as follows Press Sh AE EH ESC or Home Writing and Running Programs 3 1 Writing Programs Controlling the Analyzer Instrument BASIC can control the analyzer itself through
89. e length of the data that has been already transferred If the length of the remaining data does not exceed 16 Kbytes it is set as the transfer data length otherwise 16 Kbytes is set as the transfer data length Note that if the length of the data not transferred is O at this time the transfer process is terminated Lines 530 to 540 read data whose amount is specified by the transfer data length from the source file Lines 560 to 570 write data to the destination file in the fixed length block format see Figure 11 8 The maximum length of data transferred at a time is 16 Kbytes Therefore if the size of the source file is greater than 16 Kbytes the transfer routine lines 390 to 590 is repeated until transferring all of the data is completed Lines 650 to 750 provide a function to check that no error has occurred in the 4396B Note To transfer a file from the external storage device to the 4396B you must i check the file size number of bytes in advance w 11 14 Using Application Programs Displaying List of Files in Current Directory This program displays the list of the files in the current directory Figure 11 9 File list ASSIGN Hp4396 TO 717 OUTPUT GHp4396 rst Dir_instr Hp4396 I END 100 110 Dir_instr 120 130 SUB Dir_instr Hp4396 140 DIM Stor_dev 5 Curr_dir 50 File_name 13 150 160 OUTPUT Hp4396 STODMEMO 170 ENTER Hp4396 A 180 IF A 1 THEN 190 Stor dev MEMO
90. e of a pulse more than 20 s wide T in the LOW state will trigger RUN or CONT Negative Edge Trigger 09507001 Figure 7 2 RUN CONT Trigger Signal File System Exceptions The analyzer supports both the LIF and DOS file formats When using an LIF format disk the CREATE and CREATE DIR commands will generate an error Because the analyzer does not support an external disk drive the MASS STORAGE IS MSD statement cannot specify volumes other than the built in disk drive volume specifier INTERNAL 4 the default volume and RAM disk memory volume specifier MEMORY 0 Program I O 7 3 Using the I O Port in BASIC Programs The Instrument BASIC can directly control the I O port without using GPIB commands This is faster than using the INP8I0 and OUTP8IO GPIB commands READIO 15 0 Reads the 4 bit data from the I O Port and returns a decimal value WRITEIO 15 0 data Outputs the decimal value of the 8 bit data to the OUT 0 to 7 lines of the I O port The OUT O signal is the LSB least significant bit while the OUT 7 signal is the MSB most significant bit See Appendix B for more information on READIO and WRITEIO commands For more information on the I O port see I O port in Chapter 12 of the Function Reference 7 4 Program 1 0 Special Features and Advanced Techniques The topics covered in this chapter are Autoloading and running a program automatically AUTOST On Key Label functio
91. e the RAM disk memory type in MSI MEMORY O or MSI 0 then press Enter 5 Press the following key among the 3 menus which leads to the Shift F9 key And type in the filename to which you will store the program as follows Saving and Getting Programs 4 1 FILE UTILITY SAVE file name Enter You can also save the file from the keyboard Type and press as follows SAVE file name The program is stored on the disk Note i w If you get the error 257 File name error a file on the disk already has the name you are trying to use In this case you have three choices m Pick a new file name that doesn t already exist To determine which file names are already being used use the CAT command see below m Replace an existing file use the RE SAVE statement m Purge the old file using the PURGE command then save the new one Listing File Names CAT Listing to Screen Press the following key and softkeys 1 If the display allocation is ALL INSTRUMENT or BASIC STATUS change the allocation to either HALF INSTRument HALF BASIC or ALL BASIC For example MORE DISP ALLOCATION ALI BASIC 2 Press the following key among the 3 menus which leads to the Shift key on the keyboard FILE UTILITY CAT You can list from the keyboard as follows Type in CAT then press Enter The file names stored on the disk are listed on the screen Note i w Because the CAT statement
92. edit mode only Deletes the character at the cursor s position Deletes the line containing the cursor edit mode only Delete the line containing the cursor except the line number Clears from the current cursor position to the end of the line Clears the entire alpha screen In EDIT mode this exits the EDIT mode Program Control Keys The following keys allow you to control execution of the program stored in the analyzer s memory Pause Cel Great Pause or Alt F4 pauses program execution after the current line Pressing Continue in the System menu resumes program execution from the point where it paused Shift Alt E4 stops program execution after the current line To restart the program press Run in the System menu When in the editor mode Shift Alt F4 exits the edit mode Ctrl Break resets program execution immediately without erasing the program from memory BASIC RESET Pauses program execution when the computer is performing or trying to perform an I O operation Press Alt F5 instead of Pause or Att F4 when the computer is hung up during an I O operation because Pause or Att F4 works only after the computer finishes the current program line The Keyboard C 3 System Control Keys Shift Shift Recall recalls the last line the you entered executed Recall or deleted Several previous lines can be recalled this way Recall is
93. eep function over GPIB To Set List Sweep Figure 9 1 List Sweep ASSIGN Hp4396 TO 800 When iBASIC is used change 717 to 800 1 OUTPUT Hp4396 SA CLEAR SCREEN PRINT Segment TAB 9 Center Hz TAB 20 Span Hz TAB 30 Points PRINT TAB 39 Power dBm TAB 50 RBWCHz I DIM Table 1 31 1 5 INPUT Enter number of segments lt 31 Numb FOR I 1 TO Numb GOSUB Loadlist NEXT I I LOOP INPUT Do you want to edit Y N An EXIT IF An N OR An n INPUT Enter segment number lt 31 I IF Numb lt I THEN Numb I GOSUB Loadlist END LOOP I OUTPUT Hp4396 EDITLIST OUTPUT Hp4396 CLEL FOR K 1 TO Numb OUTPUT Hp4396 SADD OUTPUT Hp4396 CENT Table K 1 OUTPUT Hp4396 SPAN Table K 2 OUTPUT Hp4396 POIN Table K 3 OUTPUT 0Hp4396 POWE Table K 4 OUTPUT Hp4396 BW Table K 5 OUTPUT 0Hp4396 SDON NEXT K OUTPUT 0Hp4396 EDITDONE OUTPUT 0Hp4396 SWPT LIST Figure 9 1 Sample Program List Sweep 1 2 Using the List Sweep Function 9 1 INPUT Connect DUT and press Enter Dum OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 ON INTR 8 GOTO Sweep_end When iBASIC is used change 7 to 8 ENABLE INTR 8 2 OUTPUT Hp4396 SING Measuring GOTO Measuring Sweep_end DISP Program End STOP I Loadlist INPUT Enter center frequency Hz Table I 1 INPUT Enter frequency span Hz Table I 2 INPUT Enter number of points Table I 3 INPUT
94. ement calibrate the analyzer and connect the signal to the input port 11 6 Using Application Programs 10 1 20 Figure 11 6 Occupied Power Bandwidth Calculation 30 40 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 50 Rbw 100 Resolution bandwidth Hz 60 Nop 801 Number of measurement points 70 Fspan 80000 Frequency Span Hz 80 Avg 10 Averaging factor 90 100 INPUT Enter carrier frequency Hz Fcent 110 OUTPUT 0Hp4396 SPAN Fspan 120 OUTPUT 0Hp4396 CENT Fcent 130 OUTPUT 0Hp4396 BW Rbw 140 OUTPUT 0Hp4396 FMT NOISE DET POS 150 OUTPUT 0Hp4396 SAUNIT DBM ATTAUTO ON AVER ON 160 OUTPUT 0Hp4396 AVERFACT Avg 170 180 INPUT Connect input port and press Enter Dum 190 OUTPUT Hp4396 HOLD 200 OUTPUT Hp4396 CLES 210 OUTPUT Hp4396 SRE 4 ESNB 1 220 ON INTR 7 GOTO Sweep_end When iBASIC is used 230 ENABLE INTR 7 2 change 7 to 8 240 OUTPUT 0Hp4396 TRGS INT 250 OUTPUT 0Hp4396 NUMG Avg 260 Measuring GOTO Measuring 270 Sweep_end Get Data 280 DIM D 1 801 290 DIM P 1 801 300 OUTPUT Hp4396 FORM3 310 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used 320 OUTPUT Hp4396 0UTPDTRC change 717 to 800 330 ENTER Dt USING 8A Dum 340 ENTER Dt D 350 ENTER Dt USING 1A Dum 360 370 Power D P Rbw Nop Fspan 380 390 FOR I 1 TO Nop 400 A P 1I P Nop 410 IF A gt 005 THEN Lower 420 NEXT I 430 Lower I1 I
95. eo Inserting Deleting Recalling Lines a a a a a a a Clearing Line Renumbering Program Line Numbers a e 6 Application Programs Controlling the Analyzer Using Instrument BASIC aoaaa aa aa I O Operation from Instrument BASIC a a a a a A Data Transfer Using the I O Port aoaaa a e oa Reading Data from the I O Port o oa a a aa a Writing Data to the I O Port 2 Ce e Disk I O for a Storage Unit 1 a a Saving Trace Data Loading Trace Data Using Instrument BASIC with an External Controller 2 2 0222 Sharing One Printer Between Two Controllers 4 Loading Instrument BASIC Programs Using Softkeys 04 7 Program I O Graphics Instrument BASIC Graphics Commands a 08 eee Hard Copies PRINT Initial settings Example of Graphics Programming 2 6 1 ee ee ee Using the External RUN CONT Connector 2 0 ee ee File System Exceptions Using the I O Port in BASIC Programs 2 2 ee ee 8 Special Features and Advanced Techniques Autoloading and Running a Program Automatically AUTOST On Key Label Function Increasing Program Speed Contents 2 6 1 6 2 6 2 6 2 6 2 6 3 6 3 6 3 6 4 6 5 6 6 Analyzer Specific Instrument BASIC Features Available I O Interfaces and Select Codes Storage Unit 2 02020220228 4 Built in Flexible Disk Drive 020202
96. es how to control the trigger system of the analyzer To trigger a measurement from a controller the following steps are commonly used 1 Set the trigger source to Bus or Internal free run In External Video Manual or Gate trigger you cannot trigger from the controller so these sources are not mentioned in this guide 2 Set the number of measurements and the analyzer is initiated You can set the number of measurements as Hold Single Number of Group Continuous 3 Generate the trigger event and the analyzer starts a measurement The analyzer trigger system has three states Idle Waiting for Trigger and Measurement Status Notation Hid HOLD command Waiting for Trigger Status Notation Man Ext Bus Status Notation Mark on the 4396B s display Free run E E NETWORK SPECTRUM IMPEDANCE ANALYZER nam leg MAG v Figure 2 1 Trigger System Triggering the Analyzer from Remote 2 1 In Figure 2 1 1 After a HOLD GPIB command execution the analyzer returns to the Idle state 2 By setting the number of measurements the analyzer changes from the Idle state to the Waiting for Trigger state 3 At the Waiting for Trigger state a trigger input corresponding to the trigger source starts a measurement Bus GPIB command TRG or BASIC command TRIGGER triggers measurements Internal free run There is n
97. esponse calibration Line 170 requests the operator to connect a THRU calibration standard Lines 180 through 220 use the status bytes to detect the completion of the THRU calibration See To Wait for Sweep End in Chapter 3 Lines 240 through 270 use the 0PC command to detect the completion of the calculation of the calibration coefficients See To Wait For the Preceding Operation to Complete in Chapter 3 Connect DUT 300 INPUT Connect DUT then press Return Dum Line 300 requests the operator to connect a DUT to the analyzer All instrument settings and calibration are done You can now measure the DUT Trigger a Measurement 310 OUTPUT 0Hp4396 CLES Clear all status registers 320 OUTPUT Hp4396 SRE 4 ESNB 1 330 ON INTR 7 GOTO Sweep_end When iBASIC is used 340 ENABLE INTR 7 2 change 7 to 8 350 OUTPUT Hp4396 SING Sweep mode is SINGLE 360 Measuring GOTO Measuring 370 Sweep_end Lines 310 to 370 enable SRQ interruption for sweep end detection For details see Chapter 3 In line 350 the analyzer executed a single trigger For more advanced trigger control see Chapter 2 Learning GPIB Remote Control Basics 1 7 Post Processing 380 OUTPUT 0Hp4396 MKR ON Marker 1 ON 390 OUTPUT Hp4396 SEAM MAX Search MAX Line 380 activates the marker and line 390 moves the marker to the maximum value on the trace For details on using the marker see Chapter 4 Transfer Data 400 OU
98. etting into out of the EDIT Mode 2 04 4 3 1 Getting into the EDIT Mode 2 2 020058 3 1 Getting out of the EDIT Mode 2 222004 3 1 Writing Programs 1 1 1 we 3 2 Controlling the Analyzer 2 1 2 a a 3 2 Running Executing Programs 2 1 ee ee A 3 5 Listing Programs 2 1 6 a a a 3 5 Listing on the Screen ww ww A 3 5 Listing to the Printer 2 2 2 A 3 6 If You Need More Information 2 0 0 0 ee eee ee ee 3 6 4 Saving and Getting Programs Saving Programs SAVE 2 ee A 4 1 Listing File Names CAT 2 ee 4 2 Listing to Sereen 1 ww a e 4 2 Listing to Printer 1 2 ee 4 3 Getting Programs GET 0 2 002000 4 3 If You Need More Information 0 0 e 4 3 Contents 1 5 Editing Programs Getting Into Out of the EDIT Mode 0 02 2 2 0008 Getting Into the EDIT Mode using the Front Panel Keys 2 2 Entering the EDIT Mode from the Keyboard 2 4 Getting Out of the EDIT Mode CA Editing Programs in the EDIT Mode 2 2 e ee ee Deleting Characters Back Space Deleting Characters Inserting Characters Moving the Cursor Scrolling Lines and Pages 2 2 1 we A Scrolling Lines Scrolling Pages Jumping from the Current Line 2 2 ee Jumping to a Specified Line 2 a ee Jumping to the Top Bottom of a Program
99. ey and softkeys from the front panel IBASIC Edit The system enters the EDIT mode The cursor appears at line number 10 which is the default line number of the first program line as follows 4 Press the following softkey ASSIGN Hp4396 3 2 Writing and Running Programs The commands are automatically entered at the current cursor position like this 10 ASSIGN 0Hp4396 TO 800 5 Press the following key ea The system reads the entire line 10 ASSIGN Hp4396 TO 800 20 _ 6 Press the following softkey OUTPUT Hp4396 The following characters are displayed on the screen 10 ASSIGN Hp4396 TO 800 20 OUTPUT 0Hp4396 7 Press the following key and softkey to preset the analyzer The GPIB command to preset the analyzer PRES is automatically entered at the current cursor position like this 10 ASSIGN Hp4396 TO 800 20 OUTPUT Hp4396 PRES Then press x1 Note preceding the GPIB command is automatically added when you write the i program by pressing keys is a separator to send more than one command in 3 the same message 8 Press the following key to select measurement parameter as A R OUTPUT Hp4396 ANALYZER TYPE NETWORK ANALYZER RETURN A R The program code is automatically generated Writing and Running Programs 3 3 10 ASSIGN Hp4396 TO 800 20 OUTPUT Hp4396 PRES 30 OUTPUT Hp4396 NA MEAS AR Then enter x1 9 Press the following
100. f the marker real imaginary data and sweep parameter is retrieved For additional information on the marker functions see the Function Reference 2 The entire trace or data for a specified number of points can be read out in the following ways m Data arrays In regard to the data processing flow the following data arrays are available RAW DATA ARRAYS CALIBRATION COEFFICIENT ARRAYS DATA ARRAYS MEMORY ARRAYS DATA TRACE ARRAYS MEMORY TRACE ARRAYS For details about the data processing flow of the analyzer see Chapter 12 of Function Reference manual a Data format The analyzer provides four data transfer formats FORM2 IEEE 32 bit floating point format FORMS IEEE 64 bit floating point format FORM4 ASCII format FORMS MS DOS personal computer format Depending on the format the data transfer speed and the number of digits are changed Generally binary data transfer FORM2 FORMS or FORMS is faster than ASCII FORMA For details on data transfer format see the GPIB Command Reference manual Reading Measurement Data 4 1 To Read Data Using the Marker Search Function Figure 4 1 To Read Data Using Marker Search Function ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 INPUT ENTER CENTER FREQUENCY Hz F_cent Setting 4396B INPUT ENTER FREQUENCY SPAN Hz F_span OUTPUT Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span OUTPUT Hp4396 0PC ENTER Hp4396 Dum O
101. for the analyzer Appendix A contains the information required to adept this manual to earlier versions or configurations of the analyzer than the current printing date of this manual Appendix B provides references for BASIC commands specific to the analyzer s Instrument BASIC Appendix C provides a handy reference guide to the analyzer s Instrument BASIC s key definitions for the mini DIN keyboard m Appendix D describes the softkeys that are used for the Instrument BASIC operations Welcome to Instrument BASIC 1 1 Note You should become familiar with the operation of the analyzer before i attempting to control it using Instrument BASIC See the following documents 3 that are better suited to this task User s Guide Task Reference Function Reference GPIB Programming Guide GPIB Command Reference Instrument BASIC Users Handbook Note This manual Using Instrument BASIC with the 4396B is not intended to teach i the Instrument BASIC programming language see the following document 3 which is better suited to these tasks Instrument BASIC Users Handbook The handbook consists of the following three parts Instrument BASIC Programming Techniques Instrument BASIC Interfacing Techniques Instrument BASIC Language Reference IF you want to port HP 9000 Series 200 300 BASIC programs to Instrument BASIC see Chapter 10 Keyword Guide to Porting in the Instrument BASIC Programming Techniques 1 2 We
102. ge measurement conditions for example START frequency STOP i frequency NOP and IFBW of this instrument after exporting a calibration 3 coefficient array using the OUTPCALC 1 12 command and inporting it again using the INPUCALC 1 12 command contents of the imported calibration coefficient array are destroyed and become invalid If you want to perform in this way use the SAVDSTA command to save data as STATE and recall it using the RECD command Figure 5 1 To Modify Calibration Data ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 PRES OUTPUT Hp4396 NA INPUT Enter center frequency Hz F cent INPUT Enter frequency span Hz F_span OUTPUT Hp4396 CENT F_cent OUTPUT Hp4396 SPAN F_span OUTPUT Hp4396 HOLD Calibration OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 Set enable STB and ESB INPUT Connect THRU and press RETURN to do CAL Dum OUTPUT Hp4396 CALI RESP ON INTR 7 GOTO Cal_end When iBASIC is used ENABLE INTR 7 2 change 7 to 8 OUTPUT Hp4396 STANC Measure THRU Calibrating GOTO Calibrating Cal_end OUTPUT Hp4396 RESPDONE Calculating cal coefficient OUTPUT Hp4396 0PC Wait until calculating ends ENTER Hp4396 Dum 1 Figure 5 1 Sample Program To Modify Calibration Data 1 2 Writing Data Arrays to the Analyzer 5 1 DISP Calibration Complete Read Calibration Data DIM Dat
103. he transfer process is terminated Using Application Programs Depending on the data length obtained in lines 500 to 520 the program adjusts the format and reads the data part Line 530 writes the data to the destination file The maximum length of data transferred at a time is 16 Kbytes Therefore if the size of the source file is greater than 16 Kbytes the transfer routine lines 370 to 560 is repeated until transferring all of the data is completed Lines 620 to 720 provide a function to check that no error has occurred in the 4396B 6 OXXXXX XXXXX lt 16384 16k 2bytes 6 bytes XXXXX bytes a CO Header Actual Data blkform Figure 11 8 Fixed length block format File Transfer from External Controller to 4396B This program transfers a specified file in the current directory of the storage device connected to the external controller to the current directory of the selected storage device of the 4396B giving a file name you desire This program when executed first prompts you to enter a source file name as shown below Enter the name of a file you want to transfer ENTER SOURCE FILE NAME ON CONTROLLER Next the program prompts you to enter the size of the source file as shown below in this example SAMPLE STA has been entered as the source file name Enter the size correctly in bytes ENTER SOURCE FILE NAME ON INSTRUMENT SAMPLE STA ENTER SOURCE FILE SIZE Then the program prompts you
104. his chapter also describes techniques for speeding up your programs m Chapter 9 summarizes the unique features specified for the analyzer m Appendix A contains the information required to adept this manual to earlier versions or configurations of the analyzer than the current printing date of this manual m Appendix B provides references for BASIC commands specific to the analyzer s Instrument BASIC m Appendix C provides a handy reference guide to the analyzer s Instrument BASIC s key definitions for the mini DIN keyboard m Appendix D describes the softkeys that are used for the Instrument BASIC operations Contents 1 Welcome to Instrument BASIC How to Use This Manual ccccccll a 1 1 2 Introduction to the System Overview of Instrument BASIC 2 a 2 1 Connecting the Keyboard Ce a 2 2 Using Instrument BASIC for the First Time A 2 3 Allocating Screen Area for Instrument BASIC 2 2 2 0408 2 3 Setting the Size of Memory Area for Instrument BASIC 2 4 Using the Keyboard 2 1 1 1 a 2 5 What can the Keyboard be Used for 2 0222280280080848 2 5 Performing Calculations 2 1 ee A 2 5 Entering Arguments to the Active Analyzer Functions 2 2 5 Entering Titles 2 2 ee 2 6 Executing Commands 1 1 ee ee 2 6 Using Softkeys 2 2 1 1 a a a 2 7 Entering BASIC Statements from the Front Panel Keys 20202 2 7 3 Writing and Running Programs G
105. ipped with that instrument If your instrument s serial number is not listed on the title page of this manual or in Table A 1 it may be documented in a yellow MANUAL CHANGES supplement In additions to change information the supplement may contain information for correcting errors Errata in the manual To keep this manual as current and accurate as possible Agilent Technologies recommends that you periodically request the latest MANUAL CHANGES supplement For information concerning serial number prefixes not listed on the title page or in the MANUAL CHANGE supplement contact the nearest Agilent Technologies office Turn on the line switch or execute the IDN command by GPIB to confirm the firmware version See the GPIB Command Reference manual for information on the IDN command Table A 1 Manual Changes by Serial Number Serial Prefix or Number Make Manual Changes Table A 2 Manual Changes by Firmware Version Version Make Manual Changes 1 0X Change 1 Manual Changes A 1 Serial Number Agilent Technologies uses a two part nine character serial number that is stamped on the serial number plate see Figure A 1 attached to the rear panel The first four digits and the letter are the serial prefix and the last five digits are the suffix Agilent Technologies Japan Ltd SERNO JP1KG12345 AK MADE IN JAPAN 33 Figure A 1 Serial Number Plate A 2 Manual Cha
106. it Floating point Format For Instrument BASIC ASSIGN Hp4396 TO 800 1 INPUT ENTER CENTER FREQUENCY Hz F cent INPUT ENTER FREQUENCY SPAN Hz F span OUTPUT 0Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 ON INTR 8 GOTO Sweep_end ENABLE INTR 8 2 OUTPUT Hp4396 SING Measuring GOTO Measuring Sweep_end DIM Dat 1 802 1 2 Swp 1 802 For spectrum measurement change OUTPUT 0Hp4396 FORM3 Dat 1 802 1 2 to Dat 1 802 ASSIGN Dt TO 800 FORMAT OFF OUTPUT 0Hp4396 OUTPDTRC ENTER Dt USING 8A A ENTER ODt Dat x OUTPUT Hp4396 QUTPSWPRM ENTER Dt USING 8A A ENTER Dt Swp ASSIGN Dt TO I OUTPUT Hp4396 POIN ENTER 0Hp4396 Nop FOR I 1 TO Nop PRINT Swp I Hz Dat I 1 dB For spectrum measurement change NEXT I Dat I 1 to Dat I END Figure 4 5 Sample Program To Get Measurement Trace Using IEEE 64 bit Floating Point Format For Instrument BASIC Set the Receive Array 190 DIM Dat 1 802 1 2 Swp 1 802 Line 190 sets the array size to the maximum number of data The analyzer s maximum number of measurement points is 801 At end of data the terminator LFEo1 is sent see Figure 4 4 In this example it is assumed that the analyzer is in the network analyzer mode of operation in which each point has complex data If you use the analyzer in the spectrum analyzer mode each measurement point has onl
107. keys and softkeys to set the center frequency and frequency span System IBASIC OUTPUT Hp4396 Center TO M pu Span 100 k m x1 10 ASSIGN Hp4396 TO 800 20 OUTPUT Hp4396 PRES 30 OUTPUT 0Hp4396 NA MEAS AR 40 OUTPUT 0Hp4396 CENT 70E6 SPAN 100E3 50 _ 10 Then press the following keys and softkeys to execute the auto scale function System IBASIC OUTPUT Hp4396 Scale Ref AUTO SCALE xi ASSIGN Hp4396 TO 800 OUTPUT Hp4396 PRES OUTPUT Hp4396 NA MEAS AR OUTPUT Hp4396 CENT 70E6 SPAN 100E3 OUTPUT Hp4396 AUTO 11 To terminate the program the END command should be entered Press the following softkey and key System IBASIC END xi ASSIGN Hp4396 TO 800 OUTPUT Hp4396 PRES OUTPUT Hp4396 NA MEAS AR OUTPUT Hp4396 CENT 70E6 SPAN 100E3 OUTPUT Hp4396 AUTO END 12 Press the following softkey to exit the EDIT mode END EDIT 3 4 Writing and Running Programs The screen returns to the analyzer display Running Executing Programs Press the following key and softkeys from the front panel to execute the program IBASIC Run The system executes the program You can execute the RUN statement from the keyboard Type and press as follows RUM Listing Programs The system can list the program on the screen and to a printer Listing on the Screen You can list a program on the screen as follows Let s Try 1 Because the system list
108. lcome to Instrument BASIC Introduction to the System This chapter introduces the analyzer s Instrument BASIC IBASIC and describes how to connect and use a keyboard Read this chapter before using Instrument BASIC with the analyzer for the first time The topics covered in this chapter are m Overview of Instrument BASIC m Connecting the keyboard a Using Instrument BASIC for the first time m Using the keyboard Entering BASIC Statements from the front panel keys Overview of Instrument BASIC Instrument BASIC IBASIC can be used for a wide range of applications from simple recording and playback of measurement sequences to remote control of other instruments Instrument BASIC is a complete system controller residing inside your analyzer It communicates with your analyzer via GPIB commands and can also communicate with other instruments computers and peripherals over the GPIB interface Introduction to the System 2 1 Computer a Select code and GPIB address 721 4396B Select code and DT GPIB address Select code and GPIB address 800 TIF Internal GPIB Interface Scales pad GPIB am mm em e Select code and GPIB address RR Other Instruments CB300103 Figure 2 1 Configuration Example of the
109. le Dat Load data from file 110 ASSIGN File TO Close file 120 PRINT Dat 130 END Figure 6 5 Loading Trace Data Line 40 selects the internal flexible disk drive When you want to use the RAM disk memory change INTERNAL 4 to MEMORY O Line 60 adds an extension DAT to file name for the DOS format file When you want to use LIF format file change DAT to _D Application Programs 6 3 Using Instrument BASIC with an External Controller This program transfers a program from the Instrument BASIC memory to the external controller s disk through the GPIB interface This program must be executed on the external controller Note For other topics listed below see Chapter 7 Controlling Instrument BASIC i from Remote of the GPIB Programming Guide Passing control between controllers Transferring a program to Instrument BASIC Running Instrument BASIC program from an external controller program E E E m Referring to an external controller s data array contents DIM A 10000 ASSIGN 0Hp4396 TO 717 OUTPUT Hp4396 RST OUTPUT Hp4396 PROG DEF ENTER Hp4396 USING 2A Head B VAL Head 2 FOR I 1 TO B ENTER Hp4396 USING A Head NEXT I ENTER Hp4396 USING K A Transfer the program I INPUT File name File_name CREATE ASCII File_name 1 ASSIGN File TO File_name OUTPUT File A ASSIGN File TO END Figure 6 6 Transferring the Program to an External Cont
110. lus any other instruments and peripherals with GPIB cables Computer a Select code and GPIB address 721 4396B T Select code and GPIB address Cle pajeg GPIB gezag Select code and GPIB address 800 Internal GPIB Interface Select code and GPIB address RR Other Instruments CB300103 Figure 1 1 System Configuration for GPIB Remote Control To set printer or plotter see Chapter 6 2 Turn on the analyzer 3 Prepare the system controller BASIC If you are using only Instrument BASIC and no external controller prepare the analyzer for your use For details see Using Instrument BASIC with the 4396B COMPUTER If you are using a computer as an external controller a Set the analyzer to addressable only mode Press ADDRESSABLE ONLY b Set GPIB address of the analyzer to 17 Press SET ADDRESS ADDRESS 4396 1 7 xv c Turn on the controller Then load the BASIC operating system and the binary extensions 1 2 Learning GPIB Remote Control Basics How large a system can you configure e A maximum of 15 devices can be connected on one bus system e The length of cable between one device and another must be less than or equ
111. measurement data see lines 210 and 230 4 4 Reading Measurement Data Set Data Transfer Format 190 OUTPUT Hp4396 FORM4 Line 190 tells the analyzer to use the ASCII transfer format Read Data 200 OUTPUT 0Hp4396 OUTPDTRC 210 ENTER Hp4396 USING K Dat x 220 OUTPUT 0Hp4396 OUTPSWPRM 230 ENTER 0Hp4396 USING K Swp OUTPDTRC retrieves DATA TRACE ARRAYS and OUTPSWPRM retrieves sweep parameters In line 210 and 230 you must choose K to allow for an insufficient number of data points to fill the array which is 801 as declared in line 180 What are other data You can retrieve the following data arrays exchanging GPIB arrays command OUTPDTRC in line 200 For details on each command see the GPIB Command Reference manual e RAW DATA ARRAYS e DATA ARRAYS e MEMORY ARRAYS e MEMORY TRACE ARRAYS e CALIBRATION COEFFICIENT ARRAYS e SWEEP PARAMETER ARRAYS OUTPRAW 1 4 OUTPDATA OUTPMEMO OUTPMTRC OUTPCALC 1 123 OUTPSWPRM Reading Measurement Data 4 5 To Get Measurement Trace Using Binary Format Two programs are shown to get the data arrays using binary format in Figure 4 3 and Figure 4 5 Figure 4 3 Figure 4 5 COMPUTER For the external controller CC For the Instrument BASIC Ea e Using REDIM command line 220 to allow e Instrument BASIC allows for a different for the change in the number of number of data points then the number measurement poi
112. ms in the EDIT Mode This section describes how to edit a program while in the EDIT mode the topics are Deleting characters Inserting characters Moving the cursor Scrolling lines and pages Jumping lines Inserting deleting recalling lines Clearing lines See Appendix for more information on functions of each key Deleting Characters There are two functions you can use to delete characters Back space and Delete characters Back Space Pressing Back space on the front panel or on the keyboard erases the character to the left of the cursor and moves the cursor left to the position of the erased character Deleting Characters Pressing Delete char from the keyboard deletes the character at the cursor s position Inserting Characters The EDIT mode is always in the insert mode Characters you type at the keyboard are inserted before the current cursor position Pressing Insert performs no function Moving the Cursor The following key operations allow you to move the cursor horizontally along a line From the front panel From the keyboard Turning the knob Pressing Q and Scrolling Lines and Pages Scrolling Lines The following key operations enable you to scroll lines up and down From the front panel From the keyboard Pressing 1 and pressing and v Scrolling Pages Pressing Page Up and Page Down from the keyboard causes the display to scroll up and d
113. n m Increasing program speed Autoloading and Running a Program Automatically AUTOST The analyzer allows you to create a special program file called AUTOST This program is automatically loaded and run every time the analyzer is turned ON When you use this capability the disk on which you saved AUTOST must be inserted in the disk drive before the analyzer is turned ON The system first checks to see if there is an AUTOREC file on the disk If there is the system reads the AUTOREC file to set up the analyzer and then loads and runs the AUTOST program For more information on AUTOREC see Auto Recall Function in Appendix C of the Function Reference On Key Label Function The Instrument BASIC allows you to define softkeys from within a program The softkey labels you define will appear when pressing the Shift F10 key on the Keyboard The labels are displayed while running the program The ON KEY statement is used to define the softkeys For example 100 ON KEY 1 GOTO 150 110 ON KEY 2 LABEL Print GOSUB Report The KEY statement is used to display the softkey labels defined The following set of statements is the same as the key strokes System IBASIC ON KEY LABELS 200 OUTPUT Hp4396 KEY 47 SYSTEM key 210 OUTPUT Hp4396 KEY O IBASIC softkey 220 OUTPUT Hp4396 KEY 7 ON KEY LABELS softkey For more information on the ON KEY statement see the Instrument BASIC Language Reference of the Instrument BAS
114. n part number November 2002 1 0 0 0 0 ccc cece nce ncn ene eee Fifth Edition part number May 2003 aeaaeae cnet ranr orere Sixth Edition part number 04396 90023 04396 90033 04396 90043 04396 90043 04396 90053 04396 90063 Typeface Conventions Bold Italics Computer HARDKEYS SOFTKEYS Boldface type is used when a term is defined For example icons are symbols Italic type is used for emphasis and for titles of manuals and other publications Italic type is also used for keyboard entries when a name or a variable must be typed in place of the words in italics For example copy filename means to type the word copy to type a space and then to type the name of a file such as filet Computer font is used for on screen prompts and messages Labeled keys on the instrument front panel are enclosed in 1 Softkeys located to the right of the CRT are enclosed in Graphic Symbols General definitions of other graphic symbols used in manuals COMPUTER COMPUTER denotes information for a programmer using an external computer as the system controller iBASIC denotes information for a programmer using an analyzer with Instrument BASIC as the system controller How to Use This Manual This manual provides an introduction to writing BASIC programs for the 4396B Network Spectrum Analyzer analyzer To reduce the time required for you to learn how to write prog
115. nd peripherals This standard supports worldwide standards IEEE 488 1 IEC 625 and IEEE 488 2 The GPIB interface allows the analyzer to be controlled by an external computer The computer sends commands or instructions to and receives data from the instrument through the GPIB Required Equipment To perform the examples in this manual you need the following equipment 1 The analyzer and the accessories required to test a specific device under test DUT 2 For the GPIB system controller BASIC If the analyzer has the Instrument BASIC installed it can be used as the system controller COMPUTER An HP 9000 Series 200 or 300 computer or an HP Vectra PC with a measurement coprocessor or card 82300 or 82324 The computer must have enough memory to hold BASIC needed binaries and at least 64 kilobytes of program space LN BASIC 3 0 or higher operating system and the following binary extensions HPIB GRAPH IO KBD and ERR A disk drive is required to load BASIC if no internal disk drive is available Depending on the disk drive a binary such as CS80 may be required 3 Peripherals printer plotter and so on and any GPIB instruments that are required for your application 4 10833A B C D GPIB cables to interconnect the computer the analyzer and any peripherals Learning GPIB Remote Control Basics 1 1 To Prepare for GPIB Control 1 Connect the analyzer and controller p
116. nformation see the Instrument BASIC Language Reference of the Instrument BASIC Users Handbook Editing Programs 5 3 Application Programs This chapter describes Instrument BASIC programming using examples The examples correspond to actual measurement situations These Instrument BASIC examples will supply useful information for developing the analyzer s Instrument BASIC application programs The topics covered in this chapter are m Controlling the analyzer using Instrument BASIC a I O operation from Instrument BASIC m Using Instrument BASIC with an external controller m Sharing one printer between two controllers m Loading Instrument BASIC programs using softkeys Controlling the Analyzer Using Instrument BASIC Instrument BASIC allows you to easily control the analyzer This chapter describes the basic techniques for using Instrument BASIC to control the analyzer Note Two quotes in succession will embed a quote within a string when a quotation i mark needs to be in a string TA 1 For example 100 OUTPUT 0Hp4396 TITL This isatest or 100 Title This is atest 110 OUTPUT 0Hp4396 TITL Title 0 Sends string TITL This is a test to the analyzer TITL displays a title The analyzer and the Instrument BASIC in the analyzer should be regarded as two separate instruments interfaced by an internal GPIB bus So to distinguish between the internal and external GPIB interfaces use select c
117. nges Change 1 The firmware revision 1 0X does not support the file transfer function Please delete the descriptions about this function in this manual Manual Changes A 3 Index A active controller 7 1 address 1 2 1 4 ASCII data transfer 4 4 ASSIGN 1 6 averaging 2 3 B binary data transfer 4 6 BW 9 3 C CALIBRATION COEFFICIENT ARRAYS 4 1 4 5 5 3 5 5 CLEL 9 3 CONT 2 2 D data arrays 4 1 DATA ARRAYS 4 1 4 5 5 5 5 7 data format 4 1 DATA TRACE ARRAYS 4 1 4 5 5 5 5 9 DATMEM 5 5 E EDITDONE 9 3 EDITLIML 8 3 EDITLIST 9 3 ENABLE INTR 3 4 ENTER 1 8 ESE 3 5 ESNB 3 3 ESR 3 7 Event Status Enable Register 3 5 Event Status Enable Register B 3 3 Event Status Register B 3 3 F file transfer 11 9 FMT 5 5 FORM2 4 7 FORM3 4 7 4 10 FORM4 4 5 FORMS 4 7 FORMAT OFF 4 7 4 10 G group execution trigger 2 4 H HOLD 2 2 I INP8I0 10 3 INPDATA 5 7 INPDTRC 5 9 INPUCALC 1 12 5 5 INPUCALC 1 12 7 5 3 INPUDATA 5 5 INPUDTRC 5 5 INPURAW 1 4 5 5 Instrument Event Status Register 3 3 I O port 10 1 L LIMCLEL 8 3 LIMEDONE 8 3 LIMILINE 8 3 LIMITEST 8 4 limit test 8 1 LIML 8 3 LIMPRM 8 3 LIMSADD 8 3 LIMSDON 8 3 LIMU 8 3 list sweep 9 1 M maker 4 2 Manual Changes A 1 MEMORY ARRAYS 4 1 4 5 5 5 MEMORY TRACE ARRAYS 4 1 4 5 5 5 O ON INTR 3 4 0PC 3 2 OUT8IO 10 2 OUTPCALC 1 12
118. nt s serial number and firmware version Instruments manufactured after the printing of this manual may be different from those documented in this manual Later instrument versions will be documented in a manual changes supplement that will accompany the manual shipped with that instrument If your instrument s serial number is not listed on the title page of this manual or in Table A 1 it may be documented in a yellow MANUAL CHANGES supplement In additions to change information the supplement may contain information for correcting errors Errata in the manual To keep this manual as current and accurate as possible Agilent Technologies recommends that you periodically request the latest MANUAL CHANGES supplement For information concerning serial number prefixes not listed on the title page or in the MANUAL CHANGES supplement contact the nearest Agilent Technologies office Turn on the line switch or execute the IDN command by GPIB to confirm the firmware version See the GPIB Command Reference manual for information on the IDN command Table A 1 Manual Changes by Serial Number Serial Prefix or Number Make Manual Changes JPIKE Table A 2 Manual Changes by Firmware Version Version Make Manual Changes Manual Changes A 1 Instruments Covered by This Manual Agilent Technologies uses a two part nine character serial number that is stamped on the serial number plate see Figure A 1 attached
119. ntents of a mass storage directory Produces the command SAVE SAVE creates an ASCII file and copies program lines as strings into that file Produces the command RE SAVE RE SAVE creates a specified ASCII file if it does not exist otherwise it rewrites a specified ASCII file by copying program lines as strings into that file Produces the command GET GET reads the specified ASCII file and attempts to store the strings into memory as program lines Produces the command PURGE PURGE deletes a file or directory from the directory of a mass storage media Produces the command INITIALIZE INITIALIZE prepares mass storage media for use by the computer When INITIALIZE is executed any data on the media is lost Produces the command MSI on the keyboard input line MSI specifies the mass strage INTERNAL specifies the internal flexible disk MEMORY specifies the RAM disk Produces the command SCRATCH The SCRATCH erases the program in memory After SCRATCH is entered pressing executes the command Produces the command REN REN renumbers all of the program lines currently in memory Produces the command LIST Lists the program on the screen Leads to the Command entry menu which allows you to execute the Instrument BASIC commands from the front panel keys Produces the command CLEAR 1 0 Pauses I O operation program To restart the program press Continue The Keyb
120. ntrol to the system controller Controlling Instrument BASIC from Remote 7 1 What is system e The controller that acts as the master controller controller e controller can be set as either a system controller or a non system controller For details on how to set a controller see the controller s manual The analyzer as a controller can be used in either SYSTEM CONTROLLER system controller or ADDRESSABLE ONLY non system controller mode However there can be only one system controller on the bus In this guide it is assumed that the external controller is the system controller and the analyzer is used in ADDRESSABLE ONLY mode I Figure 7 2 To Receive Control on Instrument BASIC I PRINTER IS 701 ON ERROR GOTO Not_active Not_active PRINT HELLO WORLD I OFF ERROR 100 END Figure 7 2 Sample Program To Receive Control On Instrument BASIC In line 60 to print out to the printer at address 701 the analyzer requires active control Therefore until active control is passed to the analyzer the program loops back to line 30 When control is passed to the analyzer it executes line 70 To pass active control to Instrument BASIC PASS CONTROL 717 Return Pass Control On External Controller While the analyzer has control it is free to address devices to talk and listen as needed As the active controller the analyzer can send messages to and read replies back from printers and plotters Note
121. nts specified in the data array declaration Before running the program in Figure 4 3 you must modify the dimension of the data arrays to match to the analyzer type network or spectrum See the Set the Receive Array example Figure 4 3 To Get Measurement Trace Using IEEE 64 bit Floating point Format For External Controller ASSIGN Hp4396 TO 717 1 INPUT ENTER CENTER FREQUENCY Hz F cent INPUT ENTER FREQUENCY SPAN Hz F span OUTPUT 0Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span OUTPUT Hp4396 CLES OUTPUT Hp4396 SRE 4 ESNB 1 ON INTR 7 GOTO Sweep_end ENABLE INTR 7 2 OUTPUT Hp4396 SING Measuring GOTO Measuring Sweep_end DIM Dat 1 801 1 2 Swp 1 801 For spectrum measurement change OUTPUT Hp4396 POIN Dat 1 801 1 2 to Dat 1 801 ENTER 0Hp4396 Nop REDIM Dat 1 Nop 1 2 Swp 1 Nop OUTPUT 0Hp4396 FORM3 ASSIGN Dt TO 717 FORMAT OFF OUTPUT 0Hp4396 OUTPDTRC ENTER Dt USING 8A A ENTER ODt Dat x ENTER Dt USING 1A B OUTPUT Hp4396 QUTPSWPRM ENTER Dt USING 8A A ENTER Dt Swp ENTER Dt USING 1A B Figure 4 3 Sample Program To Get Measurement Trace Using IEEE 64 bit Floating Point Format For External Controller 1 2 4 6 Reading Measurement Data ASSIGN Dt TO x 1 FOR I 1 TO Nop PRINT Swp I Hz Dat I 1 dB For spectrum measurement change NEXT I Dat I 1 to Dat I END Figure 4 3 Sample Pr
122. o need for a trigger input The analyzer starts the measurements immediately 4 After the measurement is complete the next state depends on the number of measurements Single goes to the Idle state 4 a Number of Groups Goes to the Waiting for Trigger state until the number of groups not measured yet equals zero 4 b After all measurements are completed goes to Idle state 4 a Continuous goes to the Waiting for Trigger state 4 b To Measure Continuously Figure 2 2 To Trigger Measurement Continuously ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 TRGS INT OUTPUT 0Hp4396 CONT END Figure 2 2 Sample Program To Trigger Measurements Continuously Set Trigger Source 50 OUTPUT 0Hp4396 TRGS INT Set the trigger source to internal Start Continuous Measurement Sweep 60 OUTPUT 0Hp4396 CONT The analyzer changes to the Waiting for Trigger state In this program the internal trigger source is selected and the analyzer immediately starts continuous measurements 2 2 Triggering the Analyzer from Remote What can you do to Send the command P abort a measurement OUTPUT 0Hp4396 HOLD The measurement sweep is aborted What are other trigger Instead of CONT you can use 9 commands OUTPUT Hp4396 SING for single measurement OUTPUT 0Hp4396 NUMG parameter for number of group measurements When you transfer measurement data to the
123. oard C b RESET Produces the command RESET Aborts the program Softkeys Accessed form Fio Key key allows you to access three different softkey flows dependent on conditions as follows m Pressing F10 accesses the Program Control menu m In editor mode pressing F10 accesses the Edit System menu m Pressing Shift F10 accesses the On Key Label menu The menus listed above are described in Instrument BASIC Menu in Chapter 8 of the Function Reference Using crr Key in Edit Mode In the edit mode pressing CTRL holding it down and pressing another key allows you to control the editor in the same way as pressing control keys such as 4 Insert line etc If you It performs press CTRL a Moves the cursor to beginning of line the same function as Shift 4 CTRL 6 Moves cursor backward one character the same function as 4 CTRL d Deletes a character the same function as Delete CTRU e Moves the cursor to end of the line the same function as Shift CTRU Moves cursor forward character along a line the same function as b CTRL G Allows you to move the cursor to any line number or label after press CTRL g type a line number or label name and press Enter the cursor moves to the specified line the same function as GOTO LINE CTRL h Deletes backward one character the same function as Back Space CTRU Performs the
124. ode 8 for the internal GPIB interface the external select code is 7 For more information on GPIB commands see GPIB Command Reference and the GPIB Programming Guide This program sends the GPIB command by using the GPIB interface from Instrument BASIC to the analyzer 10 ASSIGN Hp4396 TO 800 Assign GPIB path to the analyzer 20 OUTPUT Hp4396 PRES Preset the analyzer 30 END Figure 6 1 Sending GPIB Command Application Programs 6 1 Note For sample programs to control the analyzer see the GPIB Programming i Guide Y I O Operation from Instrument BASIC This paragraph describes the input output operations using the I O port and the storage unit The following programs are covered in this section a Data transfer using the I O port Reading data from the I O port Writing data to the I O port m Disk I O for a storage unit Saving trace data Loading trace data Data Transfer Using the I O Port The following two examples show input and output operations of the I O port The READIO and WRITEIO commands of Instrument BASIC directly control the I O port and are faster than the INP8I0 and OUTP8I0 GPIB commands Reading Data from the I O Port This program shows how to directly read a specific data bit from the I O port 10 A READIO 15 0 20 PRINT A 30 END Figure 6 2 Reading I O Port Writing Data to the I O Port This program shows an example of writing data to the I O port When you use
125. ogram To Get Measurement Trace Using IEEE 64 bit Floating Point Format For External Controller 2 2 This program is similar to the ASCII transfer program However you must set the data transfer format OFF when using the binary data transfer format Set the Receive Array 190 DIM Dat 1 801 1 2 Swp 1 801 For spectrum measurement change 200 OUTPUT Hp4396 POIN Dat 1 801 1 2 to Dat 1 801 210 ENTER 0Hp4396 Nop 220 REDIM Dat 1 Nop 1 2 Swp 1 Nop Line 190 sets the array size to the analyzer s maximum number of measurement points 801 In this example it is assumed that the analyzer is in the network analyzer mode of operation in which each point has complex data If you use the analyzer in the spectrum analyzer mode each measurement point has only real data so you must set the data array Dat as follows 190 DIM Dat 1 801 Swp 1 801 220 REDIM Dat 1 Nop Swp 1 Nop 360 PRINT Swp I Hz Dat I dB Lines 200 and 210 interrogate the analyzer to determine the number of measurement points Line 220 resizes the receive array to match the data Set Data Transfer Format 200 OUTPUT Hp4396 FORM3 210 ASSIGN Dt TO 717 FORMAT OFF When iBASIC is used change 717 to 800 To use FORMS the computer must be instructed to stop formatting the incoming data with the ENTER statement This is done by defining an I O path with ASCII formatting OFF The I O path points to the analyzer This path can be used to read or
126. om Remote 3 5 5303002 Service Request Enable Register 0 E o tt E peration Standard Message Question Event Status Request Event in able Status Statu s Byte Register Register Service Status Output Status Register Register Queue Register B SRE 32 Event Status Enable Register a Et E ESE 32 User Comman Request Exec Device Standard Event Status Register Bepend lent Error Control on Request Error 7 4 For overall status register see GPIB Command Reference manual Figure 3 6 Command Error Bit Enabling Report Command Error 90 ON INTR 7 GOSUB Err report When iBASIC is used 100 ENABLE INTR 7 2 change 7 to 8 110 120 OUTPUT statement to send GPIB command 130 140 150 160 GOTO Prog end 170 Err report If an GPIB command executed between lines 100 and 160 causes an GPIB command error the analyzer generates an SRQ and the controller branches to Err_report For example the OUTPUT statement 120 OUTPUT 0Hp4396 CENT Setting center frequency but no parameter causes an SRQ interrupt and branch to Err_report Output Error 180 190 200 210 OUTPUT 0Hp4396 OUTPERRO ENTER Hp4396 Err Err PRINT COMMAND ERROR DETECTED PRINT Err Err These commands retrieve the error number and description In the error shown in the line 120 e
127. ommand with a Parameter 2 0 1 8 To Execute a Query oaoa a 1 8 2 Triggering the Analyzer from Remote To Measure Continuously o a a a e 2 2 Set Trigger Source oaoa a a e 2 2 Start Continuous Measurement Sweep aoao a a a a a a 2 2 To Trigger a Measurement From the Controller 2 3 Set Trigger Source oaoa a a e 2 3 Trigger a Measurement 2 2 a a a a a e 2 3 Set Trigger Source oaoa a a e 2 4 Trigger a Measurement 2 2 a a a a a e 2 4 3 Synchronizing the Analyzer from Remote To Wait For the Preceding Operation to Complete 2 2 3 2 Let Controller Wait For Operation to Complete OPC a a a a a a aa 3 2 To Wait for Sweep End ao a a a a 3 3 Enable Sweep End Bit o a a a a a a 3 3 Enable SRQ Interrupt ooa a a 3 4 Wait Until Measurement Is Done aooaa a a eee 3 4 Generate SRQ aaa a a A 3 4 To Report Command Error Occurrence ooo a a a 3 5 Enable Error Bit oa aaa A 3 5 Report Command Error aoaaa a a a 3 6 Output Error oaa 3 6 Return to Execute GPIB command aoao a a a a a 0 00484 3 7 Contents 1 4 Reading Measurement Data To Read Data Using the Marker Search Function 048 Search Maximum Value a a a a Read Data a en Ce a To Get Measurement Trace Using ASCII Format 0 0 2 0208 Set the Receive Array Ce Set Data Transfer Format Ce a e Read Data a aa ee ee Ce To Get Measurement
128. ommands Specific to 4396B B 11 WRITEIO Keyboard Executable Yes Programmable Yes In an IF THEN Yes This statement writes register data in decimal notation to a specified EXECUTE command parameter register or to a specified I O port WRITEIO __ Interface select code C2711992 Item Description register number register data Range select code numeric expression 15 I O port 8 EXECUTE register register number numeric expression 0 I O port 0 to 800 Select code 8 register data numeric expression a Example Commands WRITEIO 15 0 12 100 WRITEIO 8 0 100E6 110 WRITEIO 8 1 200E6 120 EXECUTE ANARANG m Semantics o How to write data to the I O port 2147483648 to 2147483647 O to 255 I O port When writing data to an I O port use 15 0 as the select code and the register number that corresponds with the register The range of register data for the I O port is 0 through 255 o How to write GPIB command parameters when the EXECUTE command is used The EXECUTE command uses the data stored in a register select code 8 as a parameter To store this parameter the WRITEIO command must be executed before the EXECUTE command The WRITEIO command stores one parameter in one register like the READIO command For an GPIB command that requires multiple parameters use as many WRITEIO commands as the number of parameters For mo
129. ommands from the front panel keys Softkeys Used for Instrument BASIC Operation D 3 SELECT LETTER SPACE BACK SPACE ERASE TITLE DONE CANCEL CLEAR 1 0 RESET Selects the character pointed to by 7 Inserts a space Deletes the last character entered Deletes all characters entered Terminates command entry and executes the command you entered Cancels command entry and returns to the BASIC menu Produces the command CLEAR 1 0 Pauses I O operation program To restart the program press Continue Produces the command RESET Aborts the program D4 Softkeys Used for Instrument BASIC Operation MEMORY PARTITION Changes size of memory areas for Instrument BASIC and the RAM disk memory mm K RAM A anak BAS I MEMORY mmK RAM PARTITION an K BASIC mm K RAM nak BAS I anak RAM mk BASIC mm K RAM mK BASIC DONE CHANGE YES NO CANCEL d Figure D 2 Memory Partition Menu mm K RAM nn K BASIC Selects memory partition so that mm Kbyte is for RAM disk memory and nn Kbyte is for Instrument BASIC DONE Terminates selecting memory partition and displays the following softkey labels CHANGE YES Executes to change memory partition to one selected NO Cancels to change memory partition and return to the previous softkey menu Caution When the memory partition is reconfigured the analyzer goes to the initial settings That is the RA
130. ontroller and the analyzer m Uses the 0PC command This command halts the execution of the program until the analyzer completes the preceding commands in the program m Reports the analyzer s status and generates SRQ The analyzer has a status reporting mechanism that gives information about specific functions and events inside the analyzer The status byte is an 8 bit register with each bit summarizing the state of one aspect of the analyzer For example the error queue summary bit is set if there are any errors in the queue For the status byte register bit assignment see the GPIB Command Reference manual What is an SRQ An SRQ Service Request is an interrupt generated by the analyzer The analyzer can be setup to sent an SRQ when it needs the attention of the controller The controller can ignore the SRQ or it can be setup to interrupt the program using the ON INTR commands The Status Byte can be used to define the specific event that generates an SRQ for example the end of sweep complete Controller 4396B e ou SRO ooo 0000 ooo g5a0000 o 00000 ooo Cac DO DDS maa oo ooo o Fe o ofofo Measurement complete CB300301 Figure 3 1 SRQ Generation Synchronizing the Analyzer from Remote 3 1 To Wait For the Preceding Operation to Comple
131. or details see Chapter 3 Figure 2 4 To Trigger Measurement From the Controller 2 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 TRGS BUS OUTPUT 0Hp4396 CONT OUTPUT GHp4396 TRG END Figure 2 4 Sample Program To Trigger a Measurement from Controller 2 Set Trigger Source 50 OUTPUT Hp4396 TRGS BUS Set the trigger source to bus Trigger a Measurement 70 OUTPUT Hp4396 TRG Triggers the analyzer When the trigger source is set to bus you can use the group execution trigger as follows 70 TRIGGER 7 What is Group The BASIC command TRIGGER can be used instead of the Execution Trigger TRG command The BASIC command is used to trigger all GET triggerable instruments on a BUS at the same time COMPUTER Therefore to trigger all triggerable instruments on select OC code 7 GPIB bus execute the command TRIGGER 7 LN 2 4 Triggering the Analyzer from Remote Synchronizing the Analyzer from Remote GPIB analyzer control programs that can be used for guiding you through an analyzer calibration and for reading and manipulating measurement data The control program must wait until the calculation data is processed before continuing with the next instruction Also the control program must wait until the measurement is completed before it reads the measurement data This chapter describes two techniques used by the control programs to synchronize the c
132. or programmers who use both Instrument BASIC and an external controller at the same time This chapter shows how to pass control and how to use the PROGram subsystem commands The PROGram subsystem is part of the SCPI commands hierarchy See the GPIB Command Reference manual for more information on how to use SCPI commands If your GPIB has only one controller either an external computer or the Instrument BASIC skip this chapter To Control GPIB from Instrument BASIC The analyzer must be the active controller of the GPIB select code 7 when controlling the device on the GPIB Initially the system controller is active The active controller can pass control to the analyzer or other controllers if there are others on the GPIB A a addressable only System Controller 4396p Ai tg External IBASIC i py Controller s00 Analyzer Other Device Tone ece ee ecceeseccess TXX CB300702 Figure 7 1 Pass Control What is an active e The active controller determines which controller can manage the GPIB controller that is have control The GPIB can have only one active controller at a time If two or more controllers are on the same bus control is passed from one controller to another e Resetting the GPIB this operation can only be done by the system controller the returns co
133. own in one page increments 5 2 Editing Programs Jumping from the Current Line Jumping to a Specified Line You can specify a line by using a line number or a label name when jumping from the current line as follows GOTO LINE line number Enter or GOTO LINE label name Enter If the label specified is not defined in the program an error will occur Jumping to the Top Bottom of a Program Pressing the following keys allows you to jump to top or bottom of the program Em EMO Inserting Deleting Recalling Lines Insert inserts a new line above the current cursor position Delete deletes the line at which the cursor is RECALL LINE recalls the last deleted line Clearing Line Pressing clears a line from the current cursor position to the end of the line Renumbering Program Line Numbers The REN command allows you to renumber the program currently in memory You should execute the REN command after exiting the EDIT mode Press the following key among the 3 menus which leads to the Shift F9 key RENumber or REN You can specify the starting value increment value beginning line number and the ending line number when renumbering a program as follows RENumber starting value increment IN beginning line number ending line number Enter or type as follows REN starting value increment IN beginning line number ending line number lane_label can be also use instead of line number For more i
134. pendixes This chapter covers the following topics m Available I O interfaces and select codes m Storage units m GPIB commands for Instrument BASIC Available I O Interfaces and Select Codes Available interfaces and their select codes in the analyzer s Instrument BASIC are listed in the following table Select Codes Devices 1 LCD 2 Keyboard 7 External GPIB interface 8 Internal GPIB interface Note The analyzer does not have an RS 232C interface Y Storage Unit The analyzer has two types of storage units the built in flexible disk drive and the RAM disk memory Both the disk drive and RAM disk memory support the LIF and DOS formats To switch the system s storage units between the disk in the disk drive and the RAM disk under control of Instrument BASIC MSI INTERNAL 4 or MSI 4 for the built in disk drive MSI MEMORY O or MSI 0 for the RAM disk memory Analyzer Specific Instrument BASIC Features 9 1 Note When you want to manage the storage units using the following GPIB i commands use the STODDISK command for the built in disk drive or the 3 STODMEMO command for the RAM disk memory to specify the storage unit e CHAD e INID e RESAVD e SAVDGRA e CRED e PURG e SAVDASC e SAVDSTA e DISF e RECD e SAVDDAT To copy a file between the disk and RAM disk use an FILC command Note The FILC command cannot be used to copy a file if the format LIF or DOS of i the disk in th
135. performing the procedure manually There is no required order as long as the desired frequency range number of points and power level are set before performing the calibration In line 70 several GPIB commands separated by semicolon are executed in a line This is the same as 70 OUTPUT Hp4396 CHAN1 71 OUTPUT Hp4396 NA 72 OUTPUT 0Hp4396 MEAS 521 73 OUTPUT 0Hp4396 FMT LOGM 1 6 Learning GPIB Remote Control Basics In lines 80 to 110 setting frequency parameters are required with the GPIB command To set parameters see To Execute an GPIB Command with a Parameter later in this chapter Perform Calibration 130 Frequency Response Calibration 140 OUTPUT 0Hp4396 CALK N50 Select 50 ohm type N Cal kit 150 OUTPUT Hp4396 CALI RESP Select Response cal 160 OUTPUT Hp4396 CLES Clear all status 170 INPUT Connect THRU then press Return Dum 180 OUTPUT Hp4396 SRE 4 ESNB 1 Set enable STB and ESB 190 ON INTR 7 GOTO Cal_end When iBASIC is used change 7 to 8 200 ENABLE INTR 7 2 1 210 OUTPUT Hp4396 STANC Measure THRU 220 Calibrating GOTO Calibrating 230 Cal_end 240 OUTPUT 0Hp4396 RESPDONE Calculating cal coefficients 250 OUTPUT Hp4396 0PC Waiting calculation end 260 ENTER Hp4396 Dum 1 270 DISP Response cal completed In lines 140 to 240 the GPIB program follows the key strokes required to calibrate from the front panel This program performs a r
136. program use GET command L The ASCII type program file can be saved and read using SAVE GET commands e To read a PROG type program use the READ command The PROG type program file can be saved and read using the STORE LOAD commands If the GPIB Command Does Not Work o Check the preceding GPIB command An GPIB command that requires execution time such as changing format or calculating the calibration coefficients can cause next GPIB command to fail If you are using such commands insert the following command lines OUTPUT Hp4396 0PC ENTER Hp4396 Dum For details see To Wait For the Preceding Operation to Complete in Chapter 3 If You Have a Problem 12 3 Manual Changes Introduction This appendix contains the information required to adapt this manual to earlier versions or configurations of the analyzer than the current printing date of this manual The information in this manual applies directly to the 4396B Network Spectrum Analyzer serial number prefix listed on the title page of this manual Manual Changes To adapt this manual to your 4396B see Table A 1 and Table A 2 and make all the manual changes listed opposite your instrument s serial number and firmware version Instruments manufactured after the printing of this manual may be different from those documented in this manual Later instrument versions will be documented in a manual changes supplement that will accompany the manual sh
137. r Lower 550 PRINT TAB 5 Dt 1 2 TAB 17 Dt 1 3 TAB 32 Dt 1 4 560 NEXT I 570 Passed 580 DISP Program End 590 STOP 600 610 Loadlimit 620 INPUT ENTER SWEEP PARAMETER Hz Table I 1 630 INPUT ENTER UPPER LIMIT VALUE Table I 2 640 INPUT ENTER LOWER LIMIT VALUE Table I 3 650 PRINT I TAB 11 Table I 1 TAB 27 Table I 2 TAB 42 Table I 3 660 RETURN 670 END Figure 8 1 Sample Program Limit Test 2 2 Edit Limit Line 60 CLEAR SCREEN 70 PRINT USING 10A 15A 15A 15A Segment Swp Prmtr Hz Upper Lower 80 90 DIM Table 1 18 1 3 100 INPUT Enter number of segments lt 18 Numb 110 FOR I 1 TO Numb 120 GOSUB Loadlimit 130 NEXT I 140 150 LOOP 160 INPUT Do you want to edit Y N An 170 EXIT IF An N OR Ang n 180 INPUT Enter segment number lt 18 I 190 IF Numb lt I THEN Numb I 200 GOSUB Loadlimit 210 END LOOP 8 2 Programming Limit Test from Remote 610 Loadlimit INPUT ENTER SWEEP PARAMETER Hz Table I 1 INPUT ENTER UPPER LIMIT VALUE Table I 2 INPUT ENTER LOWER LIMIT VALUE Table I 3 PRINT I TAB 11 Table 1 1 TAB 27 Table 1 2 TAB 42 Table 1I 3 620 630 640 650 660 RETURN Lines 60 and 70 print the limit table heads on the BASIC SCREEN Line 90 defines the table array Table 1 18 1 3 used to hold the limit values It contains the sweep parameter the upper limit value and the lower limit value as follows
138. ram prompts you to enter a destination file name as shown below in this example SAMPLE STA has been entered as the source file name Enter the file name you want to give on the storage device Note that a file with the same name will be overwritten if it already exists ENTER SOURCE FILE NAME ON INSTRUMENT SAMPLE STA ENTER DESTINATION FILE NAME ON CONTROLLER Figure 11 7 File transfer Instrument gt Controller I DIM Src file 50 Dst file 50 ASSIGN 0Hp4396 TO 717 OUTPUT Hp4396 rst I PRINT ENTER SOURCE FILE NAME ON INSTRUMENT INPUT Src_file PRINT Src_file 1 PRINT ENTER DESTINATION FILE NAME ON CONTROLLER INPUT Dst_file PRINT Dst files 1 Copy from instr Hp4396 Src_file Dst_file I END copy from instrument I SUB Copy_from_instr Hp4396 Src_file Dst_file DIM Len 6 Img 32 Dmy 2 I ON ERROR GOTO Skip_purge PURGE Dst_file Skip purge OFF ERROR CREATE Dst_file 1 ASSIGN ODst file TO Dst_file 1 Figure 11 7 Sample Program File Transfer from 4396B to External Controller 1 2 11 10 Using Application Programs 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 710 720 Figure 11 7 Sample Program File Transfer from 4396B to External Controller 2 2 CLEAR Hp4396 OUTPUT Hp
139. rams for the analyzer the examples shown in this guide are supplied on sample disks You can perform each example sequentially or you can select the examples that apply to your immediate needs and learn those techniques Use the table of contents and the index to quickly locate these examples Also depending upon your experience in writing BASIC programs using GPIB commands you may want to do one of the following 1 If you are an experienced programmer and have programmed GPIB systems before you can scan the examples in this guide to find out how the analyzer can be used in your system If you have never programmed an instrument similar to the analyzer you can start at the beginning and do the examples that apply to your application 2 If you are an experienced programmer but do not have any knowledge of GPIB commands review some examples to decide where you need help See the GPIB Command Reference for additional information on GPIB commands 3 If you are not an experienced programmer and you do not have any knowledge of GPIB commands see the GPIB Command Reference for a list of the documentation that you will need to review before using this guide The analyzer can also use Instrument BASIC Documentation for Instrument BASIC and the other manuals available for the analyzer is listed in the Documentation Map on the next page Documentation Map The following manuals are available for the analyzer User s Guide Agilent Part Num
140. re m Saving programs SAVE m Listing file names CAT m Getting programs GET If you are using the disk drive for the first time see To Save and Recall in Chapter 6 of the Task Reference Note Instrument BASIC on the analyzer cannot communicate with an external disk i drive 7 Note The analyzer can use either LIF Logical Interchange Format or DOS Disk i Operating System formatted disks The instrument automatically detects the 1 disk format It can use most of the same operations for either disk format Saving Programs SAVE 1 To use the built in disk drive insert a 2DD disk or 2HD disk into the disk drive 2 If you are using a flexible disk for the first time set the disk format to LIF or DOS and initialize the disk See To Save and Recall in Chapter 6 of the Task Reference for the procedure Note When the analyzer is turned on the RAM disk memory is automatically i initialized by the format that is set by FORMAT under FILE UTILITY TA 1 under Save If you want to change the disk format initialize it See To Save and Recall in Chapter 6 of the Task Reference for the procedure 3 If the display allocation is ALL INSTRUMENT change the allocation For example MORE DISP ALLOCATION ALL BASIC 4 Specify the system mass storage device as follows When you want to use the built in disk drive type in MSI INTERNAL 4 or MSI 4 then press Enter When you want to us
141. re information on the EXECUTE command see the EXECUTE command B 12 BASIC Commands Specific to 4396B The Keyboard Mini DIN keyboard is following key layout Es Fi F2 Fe Fa Fe Fe a Fe Fe Fre em Fiz Pent Soret Pause Sereen Lock a V V Ve ve We Wy Nt VV WV Wo Wk We We Vo qu We A amp me Backspace Insert Horne Page Num i 2 3 4 5 6 7 8 9 0 Ss j W Wk We We W Wk We We We Ve ve We Ve Wok We We vt Ve ve We a Tlw TIE R y Ju o lp l ose Jena TI E 7 s Me T k em Home a Pa Up j W Ve ve We We Ve Ne We Ve Wk W We Vk Wy lk lk Nt Vy WM ve CapaLock A S D F G H J K L eo Enter 4 5 6 gt j W Ve ve We We ve WM Ik NM NM WM MW N V WM Vb WV
142. roller on the External Controller Lines 50 to 90 read the file header NMM M The first byte is always N specifies the number of bytes that defines the program size MM Mis program size in byte N digits See PROGram SELected DEFine in Chapter 2 of the GPIB Command Reference for more information Note The program to be uploaded must be in either the paused or stopped state w 6 4 Application Programs Sharing One Printer Between Two Controllers This program shows an example of sharing one printer between two controllers The analyzer and the external controller use the printer in sequence The external controller uses the printer first The following is assumed m Two controllers and one printer on the same GPIB bus m Figure 6 7 is executed on the external controller m Figure 6 8 is in the Instrument BASIC editor Hp4396 717 Printer PRT I OUTPUT Hp4396 PROG STAT RUN Make Instrument BASIC run state 1 PRINTER IS Printer PRINT This line is printed out from ext controller PASS CONTROL Hp4396 ON ERROR GOTO Not_active Not_active Waiting until control is back PRINT This line is printed out from ext controller again PRINTER IS LCD END Figure 6 7 Sharing a Printer Program for External Controller ASSIGN Hp4396 TO 800 Printer PRT I PRINTER IS Printer 1 ON ERROR GOTO Not active Not_active I PRINT This line is printed from IBASIC 100 110
143. rom an Instrument on the GPIB Bus 12 1 If an Error Message is Displayed ao a a a a a 12 1 If the Disk Cannot Be Read aoa a a a a a a a 12 2 If the GPIB Command Does Not Work 2 a a a 12 3 Manual Changes Introduction o a a a a A 1 Manual Changes oaoa a a a L A 1 Serial Number oaoa a a a a A 2 Change I aoaaa a A A 3 Index Contents 3 Figures 7 5 8 1 9 1 10 1 10 2 10 3 10 4 10 5 11 1 11 2 11 3 11 4 11 5 11 6 System Configuration for GPIB Remote Control 0 222 Program Flow 2 ee Co e Sample Program Basic Measurement 1 2 2 a a a a Trigger System www A Sample Program To Trigger Measurements Continuously Ce Sample Program To Trigger a Measurement from Controller 1 4 Sample Program To Trigger a Measurement from Controller 2 1 SRQ Generation 2 a a e a a Sample Program To Wait for the Preceding Operation to Complete Sample Program To Wait for Sweep End 4 Sweep End Bit Enabling 2 a a a e Sample Program To Report Command Error Occurrence 2 Command Error Bit Enabling a Sample Program To Read Data Using Marker Search Function Sample Program To Get Measurement Trace Using ASCII Format 3 Sample Program To Get Measurement Trace Using IEEE 64 bit Floating Point Format For External Controller 1 2 2 2 2 0
144. s a program in the print area the Print Area must be allocated on the screen For example Display MORE DISPLAY ALLOCATE ALL BASIC All of the screen area is allocated for the print area 2 Type as follows LIST The system lists the program as follows ASSIGN Hp4396 TO 800 OUTPUT Hp4396 PRES OUTPUT Hp4396 NA MEAS AR OUTPUT Hp4396 CENT 70E6 SPAN 100E3 OUTPUT Hp4396 AUTO END Writing and Running Programs 3 5 Listing to the Printer Note For hard copy output an parallel cable must connect the analyzer to the i printer 2 Let s Try 1 Set the output device to a printer as follows PRINTER IS PRT Enter 2 Type and press as follows LIST Enter The program is listed on the printer 3 Set the output device to LCD as follows PRINTER IS LCD Enter If You Need More Information This chapter is an introduction to using Instrument BASIC For more information see the following chapters and documents For more information on See EDIT mode Chapter 5 Keyboard and softkeys Appendix C Display Allocation Display in Appendix D Instrument BASIC commands Instrument BASIC Language Reference of the Instrument BASIC Users Handbook GPIB commands GPIB Command Reference 3 6 Writing and Running Programs Saving and Getting Programs This chapter describes how to save and get programs to or from the built in flexible disk drive and RAM disk memory Topics of this chapter a
145. same function as Enter CTRL Deletes a line from the cursor s current position to the end of the line CTRU m Performs the same function as Enter CTRL n Moves the cursor to the next line the same function as v CTRL 0 Inserts a new line above the cursor s current position the same function as Shift Insert CTRL p Moves the cursor to the previous line the same function as 4 C 6 The Keyboard Softkeys Used for Instrument BASIC Operation The following softkeys are available with the Instrument BASIC System IBASIC controls Instrument BASIC MEMORY PARTITION changes size of memory areas for Instrument BASIC and the RAM disk Display DISPLAY ALLOCATION allocates the BASIC screen area on the display Softkeys Used for Instrument BASIC Operation D 1 IBASIC Displays the following softkeys to control Instrument BASIC IBASIC System Ste Continue Run Pause Stop Edit ASSIGN Hp4396 OUTPUT Hp4396 ENTER Hp4396 END Sone RECALL LINE END EDIT COMMAND ENTRY y SELECT LETTER SPACE BACK SPACE ERASE TITLE DONE CANCEL CAT SAVE RE SAVE GET PURGE INITIALIZE MSI INTERNAL SCRATCH RENumber LIST COMMAND ENTRY user define IBASIC_ gt
146. sion a Example Commands PRINT DATE TIMEDATE DISP DATE 2 111510608E 11 m Semantics The date returned is in the form DD MMM YYYY where DD is the day of the month MMM is the month and YYYY is the year The day is a blank filled to two character positions Single ASCII spaces delimit the day month and year The first letter of the month is capitalized and the rest are lowercase charters Years less than the year 0 are expressed as negative years BASIC Commands Specific to 4396B B 3 EXECUTE Keyboard Executable Programmable In an IF THEN Yes Yes Yes This command executes specific GPIB commands faster than the OUTPUT statement EXECUTE GPIB command Item Description Range GPIB command string expression reter to Table B 1 Table B 1 GPIB Commands for EXECUTE ANAOCH1 ANAOCH2 ANAODATA ANAOMEMO ANARANG ANARFULL EQUCPARA EQUCPARS EQUCPARS4 EQUCO EQUM LMAX LMIN NEXPK NUMLMAX NUMLMIN OUTPMAX OUTPMEAN OUTPMIN OUTPMINMAX OUTPCERR OUTPCFIL OUTPFILT OUTPRESF OUTPRESO OUTPRESR OUTPXFIL PEAK PEAN POLE RPLENV RPLHEI RPLLHEI RPLMEA RPLPP RPLRHEI RPLVAL SING TARL TARR THRR B 4 BASIC Commands Specific to 4396B a Example Commands EXECUTE SING EXECUTE ANAOCH1 m Semantics o Handling GPIB command parameters and a query command s return value when an GPIB
147. t flow controlling the analyzer using GPIB eee This guide shows program lists of sample programs for an external controller To use the sample programs in this guide with Instrument BASIC change the select code from 7 to 8 and change the GPIB address from 17 to 00 that is use 800 instead of 717 Figure 1 3 Basic Measurement ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 OUTPUT 0Hp4396 PRES Preset 4396B OUTPUT 0Hp4396 CHAN1 NA MEAS S21 FMT LOGM INPUT Enter center frequency Hz F_cent INPUT Enter frequency span Hz F_span OUTPUT Hp4396 CENT F cent OUTPUT 0Hp4396 SPAN F span Frequency Response Calibration OUTPUT Hp4396 CALK N50 Select 50 ohm type N Cal kit OUTPUT 0Hp4396 CALI RESP Select Response cal OUTPUT Hp4396 CLES Clear all status INPUT Connect THRU then press Return Dum OUTPUT Hp4396 SRE 4 ESNB 1 Set enable STB and ESB ON INTR 7 GOTO Cal_end When iBASIC is used change 7 to 8 ENABLE INTR 7 2 1 OUTPUT Hp4396 STANC Measure THRU Figure 1 3 Sample Program Basic Measurement 1 2 Learning GPIB Remote Control Basics 1 5 220 Calibrating GOTO Calibrating 230 Cal end 240 OUTPUT Hp4396 RESPDONE Calculating cal coefficients 250 OUTPUT Hp4396 0PC Waiting calculation end 260 ENTER Hp4396 Dum 1 270 DISP Response cal completed 280 290 Measurement 30
148. te 10 1 20 Figure 3 2 To Wait for the Preceding Operation Complete 30 40 ASSIGN Hp4396 TO 717 When iBASIC is used change 717 to 800 50 60 OUTPUT statement to send GPIB command 70 80 OUTPUT Hp4396 0PC 90 ENTER Hp4396 A 100 110 Next operation 120 1 130 END Figure 3 2 Sample Program To Wait for the Preceding Operation to Complete Let Controller Wait For Operation to Complete OPC 80 OUTPUT 0Hp4396 x0PC 90 ENTER 0Hp4396 A In line 80 the 0PC command waits for the preceding operations to complete and then returns ai In line 90 the controller pauses the program until the analyzer returns a 1 For example in the sample program in Figure 1 3 Chapter 1 the OPC command is used as follows 240 OUTPUT 0Hp4396 RESPDONE Calculating cal coefficients 250 OUTPUT Hp4396 0PC Waiting calculation end 260 ENTER Hp4396 Dum 270 DISP Response cal completed You cannot use OPC for the functions listed under SRQ at the beginning of the chapter Use the status byte for these functions 3 2 Synchronizing the Analyzer from Remote To Wait for Sweep End 10 1 20 Figure 3 3 To Wait for Sweep End 30 40 ASSIGN 0Hp4396 TO 717 When iBASIC is used change 717 to 800 50 OUTPUT Hp4396 TRGS INT 60 OUTPUT 0Hp4396 CLES TO OUTPUT Hp4396 SRE 4 ESNB 1 80 ON INTR 7 GOTO Sweep_end When iBASIC is used change 7 to 8 90 ENABLE INTR 7 2 1
149. ter deleting 5 2 inserting 5 2 character entry key C 2 command executing 2 6 COMMAND ENTRY 2 7 CREATE 7 3 CREATE DIR 7 3 CTRL C 2 cursor moving 5 2 D DATE B 2 DATE B 3 Date C 3 disk drive 9 2 DISPLAY ALLOCATION 2 3 DOS file system 7 3 E EDIT mode 3 1 5 1 End C 3 Enter C 2 C 3 ERROR 257 4 2 EXECUTE B 4 external monitor D 7 external RUN CONT connector 7 3 trigger signal 7 3 F file name listing 4 2 File name error 4 2 flexible disk drive 9 2 format option 9 2 G GET 4 3 GPIB address 3 2 graphics 7 1 H HALF INSTR HALF BASIC 2 3 hard copy 3 6 Come 0 3 I IBASIC 2 1 INITIALIZE 9 2 Insert C 3 Instrument BASIC 2 1 INTERNAL 4 7 3 I O interfaces 9 1 I O port 7 4 K keyboard 2 5 C 1 connecting 2 2 L label function 8 1 LIF file system 7 3 line clearing 5 3 deleting 5 3 Index 1 inserting 5 3 jumping 5 3 recalling 5 3 renumber 5 3 scrolling 5 2 list 3 5 on the screen 3 5 to printer 3 6 M manual changes A 1 MASS STORAGE IS 7 3 MEMORY 0 7 3 mini DIN keyboard C 1 MSI 7 3 N Num Lock C 3 O OFF CYCLE B 1 ON CYCLE B 1 On Key Label function 8 1 P Page Down C 2 Page Up C 2 PEN B 1 PRINTER IS 3 6 program executing 3 5 getting 4 3 listing 3 5 running 3 5 saving 4 1 Index 2 writing 3 2 program speed increasing 8 2 R RAM disk memory
150. to the left of the cursor and moves the cursor to the erased character s position on the line Performs no function Cursor Control and Display Control Keys OW WM Page Up Page Down Home C 2 The Keyboard Allow you to scroll lines up and down in the print display area Shifted these keys cause the display to scroll toward the top or bottom of the display Allow you to move horizontally along a line Shifted these keys allow you to jump to the left and right limits of the current line Cause the display to scroll up or down in one page increments Performs no function Numeric Keypad The numerical keypad provides a convenient way to enter numbers and perform arithmetic operations Just type in the arithmetic expression you want to evaluate then press Enter The result is displayed in the lower left corner of the screen Performs the same function as the Enter key The numerical keypad serves the same function as the numerical keypad on the front panel of the analyzer Performs no function Pressing the Num Lock key causes the LED ON OFF but the keys are performes as the numerical keypad only Editing Keys insert GEM inser Deere Gu Dates Ena Gm Ena Home Performs no function The Instrument BASIC is always in the insert mode The characters you type are always inserted to the left of the cursor Inserts a new line above the cursor s current position
151. to the rear panel The first four digits and the letter are the serial prefix and the last five digits are the suffix Agilent Technologies Japan Ltd SER NO JP1KG12345 AK MADE IN JAPAN 33 Figure A 1 Serial Number Plate A 2 Manual Changes BASIC Commands Specific to 4396B BASIC Commands Not Implemented The following commands are listed in the Instrument BASIC Language Reference of the Instrument Users Handbook but are not implemented in the analyzer s Instrument BASIC m OFF CYCLE m ON CYCLE Note GCLEAR and ON TIMEOUT commands are available but the following i supplementary items are added TA 1 m GCLEAR Moves the pen to 0 0 a OFF TIMEOUT and ON TIMEOUT The interface select code is 7 only BASIC Commands Specific to 4396B The following commands are not listed in the Instrument BASIC Language Reference of the Instrument BASIC Users Handbook but are available in the analyzer s Instrument BASIC DATE DATE EXECUTE READIO SET TIME SET TIMEDATE TIME TIME WRITEIO BASIC Commands Specific to 4396B B 1 DATE Keyboard Executable Programmable In an IF THEN Yes Yes Yes This command converts data formatted as DD MMM YYY into the numeric value used to set the clock DATE formatted date O literal form of formatted date 0 C2711004 Item day delimiter delimiter
152. ue in all header arrays Lines 445 to 447 place the number of bytes transferred to the header array digit by digit from the sixth array to the first array of the header For example if the number of points is 201 the value of Head is 003216 5 4 Writing Data Arrays to the Analyzer Redrawing Measurement Trace with Modified Calibration Data 480 OUTPUT Hp4396 SAVC Redraw Trace When all the calibration coefficients are in the analyzer send the GPIB command SAVC to have the analyzer reshape a trace with the coefficients How can you modify the trace Summary To modify the trace on the display you rewrite the data arrays in the analyzer Figure 5 2 shows the relation of the data arrays data processing and GPIB commands INPUCALC 12 INPUDATA CALIBRATION COEFFICIENT DATA INPUDTRC DATA TRACE ARRAYS ARRAYS ARRAYS Y i P q FORMAT oc DISPLAY SAVE DATI amen 1 Measurement RAW block gt DATA ARRAYS CORRECTION TRACE A MEMORY MEMORY ARRAYS ARRAYS INPURAW I 4 Remarks PROCESS para _ NORMAL FLOW For overall data processing flow ee Chapter 12 of Function Reference ARRAYS __ CONDITIONED FLOW s j 2000 manual Figure 5 2 Data Arrays Data Processing and GPIB Command
153. uide and perform the exercises For many users this will provide all the information that is needed to create and run programs How to Use This Manual The tasks in each chapter when performed in sequential order demonstrate a typical use of Instrument BASIC and cover the most common tasks Read the overview and try the sample tasks in each chapter to get you started For more background information you can read further into each chapter otherwise go to the next exercises and continue the session You can refer back to the individual chapters for more information as necessary Here is a brief guide to help you locate the necessary information in this manual and the other Instrument BASIC manuals m Chapter 2 introduces the analyzer s Instrument BASIC system and describes how to connect and use a keyboard Chapter 3 and Chapter 4 show creating getting and saving programs to teach you front panel and keyboard operation Chapter 5 introduces you to the editing environment Chapter 6 provides application programs and useful techniques for developing programs Chapter 7 describes interfacing features for graphics external connector to trigger RUN CONTinue of a program and I O port Chapter 8 introduces special features for auto loading a program and the On Key Label function softkeys defined in a program This chapter also describes techniques for speeding up your programs Chapter 9 summarizes the unique features specified
154. xample the controller displays the following 3 6 Synchronizing the Analyzer from Remote COMMAND ERROR DETECTED 109 Missing parameter Return to Execute GPIB command 230 240 250 260 270 A SPOLL 0Hp4396 OUTPUT 0Hp4396 xESR ENTER 0Hp4396 Estat ENABLE INTR 7 When iBASIC is used change 7 to 8 RETURN Lines 230 to 270 clear SRQ before returning to the main routine Line 230 reads the analyzer s status byte The A SPOLL Hp4396 statement reads the Status Byte Register of the address Hp4396 analyzer and enters the value into A The command error causes the SRQ and with bit 5 and bit 6 of the Status Byte Register set the value of A is 96 Reading the Status Byte Register by using the SPOLL command clears SRQ status byte bit 6 In line 240 and line 250 the command ESR reads the contents of the Standard Event Status Register With Bit 5 of Standard Event Status Register set the value of Estat is 32 Reading the Standard Event Status Register by using the ESR command clears the register A branch to Err_report disables the interrupt Therefore the return from Err_report must reenable the interrupt Synchronizing the Analyzer from Remote 3 7 Reading Measurement Data This chapter describes how to read measurement data over the GPIB Measurement data can be read out of the analyzer in the following ways 1 Data can be read off the trace selectively using the markers The present value o
155. xecuting Commands You can type in and execute commands from the keyboard at all times except when m The display allocation is ALL INSTRUMENT a A command is being executed m The analyzer is in the EDIT mode At all other times you can type in commands and press to present them to the system for execution The system parses the command and takes the appropriate action Let s Try 1 Press the following key and softkey MORE DISPLAY ALLOCATION HALF INSIR HALF BASIC 2 To check the current mass storage type the following command SYSTEM MSI 3 The system returns 1 4 2 6 Introduction to the System Using Softkeys Pressing through fs on the keyboard performs the same function as pressing a softkey on the front panel Entering BASIC Statements from the Front Panel Keys The analyzer s Instrument BASIC allows you to enter and execute statements from the front panel keys if the external mini DIN keyboard is not connected Press the following key and softkeys from the front panel System IBASIC MORE 1 3 MORE 2 3 COMMAND ENTRY The Command Entry menu is displayed on the softkey menu area and the active entry area displays the letters the digits 0 through 9 and some special characters including mathematical symbols Three sets of letters can be scrolled using the step keys 7 and J To enter a statement press the step keys for the desired letter set rotate the knob until the arrow f points at th
156. y real data so you must set the data array Dat as follows Reading Measurement Data 4 9 190 DIM Dat 1 802 Swp 1 802 330 PRINT Swp I Hz Dat I dB If the number of measurement points change then so does the number of data Instrument BASIC allows for insufficient data in lines 220 to 270 see Read Data Set Data Transfer Format 200 OUTPUT Hp4396 FORM3 210 ASSIGN Dt TO 800 FORMAT OFF To use FORMS the computer must be instructed to stop formatting the incoming data with the ENTER statement This is the same operation that is done in the program in Figure 4 3 For more information see Set Data Transfer Format in Figure 4 3 Read Data 220 OUTPUT 0Hp4396 OUTPTDTRC 230 ENTER Dt USING 8A a 240 ENTER Dt Dat 250 OUTPUT 0Hp4396 OUTPSWPRM 260 ENTER Dt USING 8A a 270 ENTER Dt Swp When all the data is transferred and no data is left for the receive arrays Dat and Swp the program goes to the next operation 4 10 Reading Measurement Data Writing Data Arrays to the Analyzer Chapter 4 explained how to read data arrays from the analyzer This chapter shows how to write data arrays to the analyzer You can read modify and store the data arrays to the analyzer over the GPIB This allows you to modify the trace on the analyzer s display For details on the data arrays in the analyzer see the GPIB Command Reference manual To Modify Calibration Data Note If you chan

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