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Agilent Technologies 660MHz Welding System User Manual

1. Example programming statements 42 Command Long Form Parameter Parameter Suffix RST value Specified Limits Description Example Command Long Form Parameter Parameter Suffix RST value Specified Limits Description Example Command Long Form Parameter RST value Programming Reference SCPI Instrument Command List ARM LEV THR ARM SEQuence 1 Set amp Query Numeric STARt LAYer LEVel THReshold V with engineering prefixes 1 0V 1 4 V to 3 7 V Use this command to program the triggering threshold of the EXT INPUT connector ARM LEV 2 5V Set EXT INPUT threshold to 2 5 V ARM LEV TERM ARM SEQuence 1 Set amp Query Numeric STARt LAYer LEVel TERMination V with engineering prefixes 0 0 V 2 1 V to 3 3 V Use this command to program the termination voltage compensation of the EXT INPUT connector ARM LEV TERM 1 0V Set EXT INPUT termination voltage to 1 0 V ARM MODE ARM SEQuence 1 Set amp Query STARted STARt LAYer MODE GATed STARted 43 Programming Reference SCPI Instrument Command List Description Command Long Form Parameter RST value Description Command Long Form Parameter RST value Description Use this command to select STARTED or GATED mode In the gated mode the instrument triggers as long as the arming signal is above ARM SENS POS or below
2. ARM SENS NEG the selected threshold level ARM LEV In started mode the instrument triggers on positive edge ARM SENS POS or negative edge ARM SENS NEG ARM SENS ARM SEQuence 1 STARt LAYer SENSe Set amp Query POSitive NEGative POS Use this command to select the edge or trigger level for the arming signal The instrument triggers at the positive or negative cycle of the arming signal ARM SOUR ARM SEQuence 1 STARt LAYer SOURce Set amp Query IMMediate EXTernall MANual IMM Use this command to select the triggering mode of the instrument by selecting the source of the arming signal Triggering Source ARM SOURce Mode Internal PLL IMMediate Continuous EXT INPUT EXTernall Triggered Gated by EXT IN MAN key MANual Triggered Gated by MANKey Use ARM MODE STARTed GATed to select the mode 44 Command Long Form Parameter RST value Description Command Long Form Parameter RST value Description Command Long Form Parameter RST value Specified Limits Programming Reference SCPI Instrument Command List INIT CONT INITiate CONTinuous Set amp Query ON OFF 1 O ON Use this command to enable disable automatic restart of the instrument equal to start and stop the instrument If ARM SOURce is set to IMMediate the value of INITiate CONTinuous is ignored CHAN MATH
3. Description Examples Command Long Form Parameter RST value gt MMEM INIT MMEMory INITialize Event A DOS Not applicable Use this command to initialize a memory card to DOS format Initializing a memory card destroys any existing data on the card gt MMEM LOAD STAT MMEMory LOAD STATe Event lt n gt filename A Not applicable lt n gt 0 to 4 integer Use this command to load a complete instrument setting from file filename in the current directory into memory lt n gt in the instrument Memories 1 to 4 are the internal memories Use memory 0 to load a setting as the current instrument setting See next command MMEM STOR STAT MMEMory STORe STATe Event lt n gt filename A Not applicable 58 Specified Limits Description Examples Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Description Example Programming Reference SCPI Instrument Command List lt n gt 0 to 4 integer Use this command to store a complete instrument setting from memory lt n gt to file filename in the current directory on the memory card Memories 1 to 4 are the internal memories Use memory 0 to store the current instrument setting to a file MMEM LOAD STAT 1 FREQPERF Load FREQPERF into memory 1 MMEM LOAD STAT 0 AMPTEST Load AMPTEST as current setting SAV 2 Save current set
4. Programming Reference Programming the Instrument Trigger Modes Continuous Set Continuous mode by arming the instrument from its internal PLL ARM SOURce IMMediate Arm from internal PLL Started Set Started mode by arming the instrument on low to high level transition from the EXT INPUT ARM SOURce EXTernall Arm from EXT INPUT ARM MODE STARted Start on the arm event ARM SENSe POSitive Arm on positive high level ARM LEVel THReshold 1V Set EXT INPUT threshold Gated Set Gated mode by arming the instrument on levels from the EXT INPUT ARM SOURce EXTernall Arm from EXT INPUT ARM MODE GATed Select gated mode ARM SENSe POSitive Arm on positive level Pulses Set Pulses mode by setting the TRIGger COUNt to 1 so that a single triggered pulse period is generated for every ARM event The trigger source sets the pulse period TRIGger COUNt 1 Single pulse period per arm event TRIGger SOURce INTernal 1 Pulse period from internal PLL DIGital PATTern OFF Disable pattern data Pulse period source TRIGger SOURce internal PLL INTernal 1 or IMMediate CLK IN EXTernal2 39 Programming Reference Programming the Instrument Trigger Modes Burst Set Burst mode by setting the TRIGger COUNt to the burst count required The trigger source sets the pulse period for the pulses within the burst See table in Pulses on page 39 TRIGger COUNt 16 Burst of 16 pulse periods TRIGger SOURce INTernall Pulse
5. 50 Q into 50 Q 3 8 V Outputs 50 Q into short max 152 mA typical 3 0 V Outputs 50 Q into short max 120 mA typical Amplitude High Low Offset High seen Offset 60 Description Example Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling Description Example Programming Reference SCPI Instrument Command List This command programs the amplitude current of the OUTPUT signal Note that to set the OUTPUT levels in terms of current you first have to execute the SOURce HOLD CURRent command to enable the SOURce CURRent subsystem The available current range is limited by the specified voltage limits HOLD CURR CURR1 75MA Enable CURRENT subsystem Set OUTPUT 1 amplitude to 75 mA CURR 1I2 0FFSet SOURce CURRent 1 2 LEVel IMMediate OFFSet Set amp Query Numeric A with engineering prefixes 0 0 uA 50 Q into 50 Q 3 8 V Outputs 50 Q into short max 152 mA typical 3 0 V Outputs 50 Q into short max 120 mA typical Amplitude High Low Offset High ae Amplitude This command programs the offset current of the OUTPUT signal Note that to set the OUTPUT levels in terms of current you first have to execute the SOURce HOLD CURRent command to enable the SOURce CURRent subsystem The available current range is limited by the specified voltage limits HOLD CURR CURR1 OFF 50MA En
6. CHANnel MATH Set amp Query OFF DIGital OFF Use this command to enable or disable digital channel addition in an instrument with two Output channels installed With CHAN MATH DIGital the digital signals from both channels are xor ed before the slopes are applied at OUTPUT 1 The signal of OUTPUT 2 can be used in parallel This allows you to for example to simulate single or repeated glitches DIG PATT LOOP DIGital STIMulus PATTern LOOP LEVel 1 COUNt Set amp Query Numeric 1 1 to 220 45 Programming Reference SCPI Instrument Command List Description Use this command to set up a counted loop across one or more segments If nested loops are used the counted loop must be embedded into the infinite loop completely Example To set up an infinite loop over segment 2 to segment 4 and a counted loop across segment 2 and segment 3 ARM SOUR EXT1 Set arming source to EXT IN ARM MODE STAR Set arming mode to started ARM SENS POS Arm on positive level DIG PATT LOOP INF STAR SEGM2 Set jump destination to segment 2 DIG PATT LOOP 100 Set number of repetitions of segment2 and segment 3 DIG PATT LOOP STAR SEGM2 Set start of counted loop DIG PATT LOOP LENG 2 Set length of counted loop DIG PATT ON Switch on PATTERN mode Command DIG PATT LOOP INF Long DIGital STIMulus PATTern LOOP INFinite STATe Form Set amp Query Parameter ON OFF 1 0 RST value ON Description Use
7. WINDow STATe The data is in a binary format not ASCII and cannot be edited In set form the block data must be a complete instrument set up read using the query form of the command SYST VERS SYSTem VERSion Query 1992 0 This command reads the SCPI revision to which the instrument complies SYST WARN SYSTem WARNing COUNt Query Not applicable Use this command to read the number of warnings which are currently active Note that the warning status of voltage current time and frequency are also summarized by bits in the QUESTionable Status register 88 Command Long Form RST value Description Command Long Form RST value Description Command Long Form Parameter RST value Specified limits Programming Reference SCPI Instrument Command List SYST WARN STR SYSTem WARNing STRing Query Not applicable Use this command to read all the currently active warning messages The warning messages are concatenated to form a single string with a as separator between the messages SYST WARN BUFF SYSTem WARNing BUFFer Query Not applicable Use this command to read the maximum possible number of characters which could be returned by SYST WARN STR if all warnings were active TRIG COUN TRIGger SEQuence 1 Set amp Query STARt COUNt Numeric 1 1 to 65504 89 Programming Reference SCPI Instrument Command List Description N
8. the instrument chassis and cover must be connected to an electrical protective earth ground The instrument must be connected to the ac power mains through a grounded power cable with the ground wire firmly connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Fuses Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired fuses or short circuited fuse holders To do so could cause a shock or fire hazard Do Not Operate in an Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes Do Not Remove the Instrument Cover Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made only by qualified service personnel Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel Safety Summary WARNING CAUTION Safety Symbols A Caution refer to accompanying documents Protective earth ground terminal In the manuals The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed
9. 3 75 V Agilent 81132A 1 95 V to 2 95 V High Offset APRE E Low Offset _Amplitude 2 Amplitude This command programs the offset voltage of the OUTPUT signal Note that to set the OUTPUT levels in terms of voltage you first have to execute the SOURce HOLD VOLTage command to enable the SOURce VOLtage subsystem The available voltage range is limited by the specified current limits HOLD VOLT Enable VOLTAGE subsystem VOLT1 OFF 800MV Set OUTPUT 1 offset to 800mV VOLT 112 HIGH SOURce VOLTage 1 2 LEVel IMMediate HIGH Set amp Query Numeric V with engineering prefixes 500 mV Agilent 81131A 1 90 V to 3 80 V Agilent 81132A 1 90 V to 2 50 V Amplitude High Low Offset High ae 78 Range coupling Description Example Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling Description Example Programming Reference SCPI Instrument Command List Low level This command programs the High level voltage of the OUTPUT signal Note that to set the OUTPUT levels in terms of voltage you first have to execute the SOURce HOLD VOLTage command to enable the SOURce VOLTage subsystem The available voltage range is limited by the specified current limits HOLD VOLT VOLT1 HIGH 2V Enable VOLTAGE subsystem Set OUTPUT 1 high level voltage to 2 V VOLT 112 LOW SOURce VOLTage 1 2 LEVel IM
10. Press the MORE key to switch to the alternative softkey layout Alternate Keys Press SHIFT 0 ON OFF1 to switch on outputl Screen Quotes Entry Focus VOLTage HIGH 3V RST The alternate key label which is selected by pressing the SHIFT key is given in parentheses Move the entry focus down to PULSE PERIOD and turn the knob to select INTERNAL PLL The highlight field that can be moved with the cursor keys to change modes parameters or parameter formats Full command for programming a 3 V high level The upper case letters represent the short form of the command which results in faster pro gramming times Common IEEE 488 command to reset instru ment to default status 10 Chapter 1 Chapter 2 Chapter 3 Contents NO UICC ss svbecc ce dee densciseedsvevsdeecteecedscavsceacevsssceleaveesecesescdecedesedecnsseeds 4 Safety SUMMar ys cveses cccslicedicededuseicecscctsbsscsdssecedseccevsstdesecedsescassecs 6 About this BOOK iccccsscccscccnscccscenscssssnscasssssssesscedsseesssvssedssesscossesses 9 General Programming Aspects The GP IB Interface Bus ccccccsseesssscccsssccceeeseeeeeesseeseees 14 Agilent 81130A Remote Control cccscccssccesssccnscccesseees 15 Programming Recommendations cccsscccessccsssccessccessseoes 16 Common Command Summary cccssccesscccsssccsscccsssccssseeceecs 18 Status Model sssscccccccssssssssscsscscccesseeesss
11. Programming Reference SCPI Instrument Command List Command TRIG SOUR Long TRIGger SEQuence 1 STARt SOURce Form Set amp Query Parameter IMMediate INTernal 1 EXTernal2 RST value INT Description Use this command to select the pulse period source of the Agilent 81130A by selecting the source of the pulse period trigger signal Pulse period sources set by TRIG SOUR Pulse period source TRIG SOURce internal PLL IMMediate INTernal 1 CLK IN EXTernal2 93 Programming Reference SCPI Instrument Command List 94 NOTE Specifications In this chapter you will find the specifications of the Agilent 81130A Pulse Generator and its output modules Agilent 81131A and Agilent 81132A At the end of this chapter Pulse Parameter Definitions on page 111 provides detailed information on the definition of the pulse parameters used by the instrument Warranted Performance Specifications describe the instrument s warranted performance Non warranted values are described as typical All specifications apply after a 30 minute warm up phase with 50 Ohm source a 50 Ohm load resistance and separate channels They are valid from 0 C to 55 C ambient temperature 95 Specifications Declaration of Conformity Manufacturer Safety EMC Supplementary Information Declaration of Conformity Agilent Technologies Boeblingen Verification Solutions Herrenberger Str 130 D
12. SEGM1 Use this command to set the first segment within a counted loop The start of the counted loop must be within the infinite loop if used To set up an infinite loop over segment 2 to segment 4 and a counted loop across segment 2 and segment 3 ARM SOUR EXT1 Set arming source to EXT IN ARM MODE STAR Set arming mode to started ARM SENS POS Arm on positive level DIG PATT LOOP INF ON Switch on infinite loop DIG PATT LOOP INF STAR SEGM2 Set jump destination to segment 2 DIG PATT LOOP 100 Set number of repetitions of segment2 and segment 3 DIG PATT LOOP STAR SEGM2 Set start of counted loop DIG PATT LOOP LENG 2 Set length of counted loop DIG PATT ON Switch on PATTERN mode 47 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Description Command Long Form Parameter RST value Specified Limits Description DIG PATT LOOP LENG DIGital STIMulus PATTern LOOP LEVel 1 LENGth Set amp Query J 2 lt 8 4 1 Use this command to set the number of segments to be repeated within the counted loop See previous example page 47 DIG PATT DIGital STIMulus PATTern STATe Set amp query ON OFF 1 O OFF Use this command to enable and disable PATTERN mode DIG PATT PRBS DIGital STIMulus PATTern PRBS Set amp Query Numeric 7 7 to 15 i
13. TRIG 1 MODE SOURce PULSe TRIGger 1 MODE Set amp Query CONTinuous STARt STARt Use this command to set read the TRIGGER OUT generation mode in pattern mode PULS TRIG 1 POS SOURce PULSe TRIGger 1 POSition Set amp Query 1 2 3 4 1 Use this command to set read the TRIGGER OUT position in pattern mode The specified value selects a segment number for the Agilent 81130A PULS TRIG 1 VOLT SOURce PULSe TRIGger 1 VOLTage LEVel IMMediate Set amp Query TTL PECL SYM ECLGND ECLN2V TTE 74 Description Command Long Form Parameter Parameter suffix RST value Specified Limits Description Example Programming Reference SCPI Instrument Command List Use this command to set read the output levels at the TRIGGER OUT connector Termination Termination Value High Level Low Level Voltage Resistor TTL 2 5V OV OV 50Q PECL 4 2V 3 3V 3 0V 50Q SYM 0 5V 0 5V OV 502 ECLGND 0 8V 1 7V OV 50Q ECLN2V 0 8V 1 7V 2 0V 50Q PULS WIDT 112 SOURce PULSe WIDTh 1 2 Set amp Query Numeric S with engineering prefixes 100 ns Agilent 81131A 1 25 ns to 999 9 ps Agilent 81132A 0 75 ns to 999 9 pis Use this command to program the width of the pulse signal If you want to set width as dutycycle use SOURce PULSe DCYCle 1 2 If you want the pulse width to remain constant when the pulse period is varied rather
14. amplitude at fastest transitions in continuous mode and 50 load impedance The Agilent 81130A is designed and recommended for an operation in the frequency range of 170 kHz to 400 660 MHz However it can be operated in the extended range down to 1 kHz Changes in specifications below 170 kHz are set in brackets Period amp Frequency Period can also be entered as frequency ere Agilent 81130A with Agilent 81130A with R requency Agilent 81131A Agilent 81132A Period range 2 5 ns to 1 ms 1 5 ns to 1 ms Frequency range 1 kHz to 400 0 MHz 1 kHz to 660 0 MHz Period frequency 4 digits 2 ps best case resolution Period accuracy 100 ppm 0 01 RMS jitter internal reference 0 001 15 ps internal clock a In burst mode the first period may be decreased by 150 ps Repeatability is typically four times better than accuracy 99 Specifications Agilent 81130A Specifications Width The width can be entered as absolute width duty cycle or trailing edge delay Width Agilent 81130A with Agilent 81130A with Agilent 81131A Agilent 81132A Width range 1 25 ns to period 1 25 ns 750 ps to period 750 ps Resolution 4 digits 2 ps best case 0 05 of period Accuracy t 100 ppm 200 ps 0 06 of period Jitter 0 001 15 ps Delay Measured between trigger output and main output Can be entered as absolute delay phase or of period ba Agilent 81130A with Agilent 81
15. from EXT INPUT ARM MODE GAT Set arming on levels ARM SENS POS Set arming on positive level 1 pulse period TRIG COUN 1 Single pulse output mode TRIG SOUR INT1 Pulse period trigger from internal PLL DIG PATT OFF Disable pattern data 90 Programming Reference SCPI Instrument Command List Influence of TRIGger COUNt and TRIGger COUNt PULSes 1 2 in started burst mode ARM SOUR IMM TRIG COUN 1 ARM MODE STAR TRIG COUN PULS1 20 TRIG COUN 5 TRIG COUN PULS1 gt 5 TRIG COUN 5 TRIG COUN PULS1 10 TRIG COUN gt 10 TRIG COUN 20 TRIG COUN 10 TRIG COUN 8 TRIG COUN PULS1 gt 8 TRIG COUN 1 TRIG COUN PULS1 gt 8 Set continuous mode Set Pulse mode Prepare started mode Set number of pulses on channel 1 to 20 Set Burst mode with a length of 5 clocks the number of pulses on both channels will be reduced to 5 if necessary Request number of pulses on channel 1 Request number of clock within the started burst Set number of pulses on channel 1 to 10 Request number of clocks within the started burst Set number of clocks within the started burst to 20 Request the number of clocks with in the started burst The return value is 10 because none of the channels will gener ate more than 10 pulses Set the number of clocks within the started burst to 8 Request the number of pulses on chan nel 1 The return value is 8 because the number of clocks
16. has been decreased to a value less than the currently used number of pulses on channel 1 Set Pulse mode Request the number of pulses on chan nel 1 The value stays unchanged since the instrument is no longer in started burst mode 91 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Specified limits Description Examples Command Long Form Parameter Parameter Suffix RST value Specified Limits Description Example TRIG COUN PULS 112 TRIGger SEQuence 1 STARt COUNt PULSes 1 2 Set amp Query Numeric 2 2 to 65504 Use this command to set read the number of pulses within a burst at OUTPUT 1 or OUTPUT 2 To set STARTED BURST of 16 pulse periods and 6 Pulses at Out 1 the burst is started by a positive level at the EXT INPUT ARM SOUR EXT1 Set arming from EXT INPUT ARM MODE STAR Set started mode ARM SENS POS Set arming on positive level TRIG COUN 16 Burst length 16 TRIG COUN PULS1 6 Set 6 pulses at OUTPUT 1 TRIG SOUR INT1 Pulse period trigger from internal PLL DIG PATT OFF Disable pattern operating mode TRIG LEV TERM TRIGger SEQuence 1 STARt LEVel TERMination Set amp Query Numeric V with engineering prefixes 0 0 V 2 1V to 3 3V Use this command to program the termination voltage compensation of the CLK IN connector TRIG LEV TERM 2 5V Set CLK IN termination voltage to 2 5 V 92
17. help for getting started is also available If warnings or errors occur the HELP key displays the warning error list accordingly Memory Non Volatile Memory Actual setting is saved on power down 4 user settings and 1 default setting are also stored in instrument Memory Card 99 settings can be stored per 1 MB MS DOS PCMCIA memory card Also used for convenient firmware updates Remote Control Operates according to IEEE standard 488 2 1987 and SCPI 1992 0 Function Code SH1 AH1 T6 L4 SR1 RL1 PPO DC1 DT1 C0 109 Specifications Agilent 81130A Specifications Programming Times all checks and display off Command Typical execution time Width delay transition times Period within one range Period between different ranges in pulse burst mode in pattern mode Levels Trigger modes Input parameters Save setting Recall setting in pulse burst mode in pattern mode with data and PRBS b Complete pattern memory transfer Pattern and Sequencing b 40 ms to 70 ms 100 ms to 260 ms 140 ms to 300 ms 100 ms to 5 05 s 43 ms lt 75 ms 28 ms 200 ms 515 ms to 800 ms 1 15 s to 5 5 s 1 25 ms 190 ms to 5 1 s a Range depends on segment length resolution b Depends on PRBS polynom setting 110 Specifications Pulse Parameter Definitions Pulse Parameter Definitions Here you find the pulse parameter definitions of te
18. instrument OUTPUTs in terms of voltage or current 66 Command Long Form Parameter Parameter suffix RST value Specified limits Value coupling Functional coupling Description Example Command Long Form Parameter Parameter suffix RST value Programming Reference SCPI Instrument Command List PHAS 1I2 SOURce PHASe 1 2 ADJust Set amp Query Numeric DEG or RAD A parameter without a suffix is interpreted as RAD 0 0 0 to 360 constrained by delay and period limits Phase Delay x Period Programming the pulse phase also executes SOURce PULSe HOLD PHASe so that the pulse phase is held constant when the signal frequency is changed Use this command to set read the relative phase delay of the output signal This is equivalent to setting an absolute or percentage pulse delay with SOURce PULSe DELay If you want the phase delay to remain constant when the pulse period is varied rather than the absolute pulse delay use SOURce PULSe DELay 1 2 HOLD PRATio PULS DEL1 500NS Set OUTPUT 1 delay to 500ns PHAS2 180 DEG Set OUTPUT 2 phase to 180 PULS DEL1 HOLD TIM Hold OUTPUT 1 delay constant with varying perio d PULS DEL2 HOLD PRAT Hold OUTPUT 2 phase constant with varying period PULS DCYC 1I2 SOURce PULSe DCYCle 1 2 Set amp Query Numeric PCT 10 0 derived from Width and Period 67 Programming Reference SCPI Instrument Command Li
19. into 50 Q OFFSet 0 0 LA 50 Q into 50 Q HIGH 10 mA 50 Q into 50 Q LOW 10 mA 50 Q into 50 Q LIMit HIGH 10 0 mA LOW 10 mA STATe OFF FREQuency 1 00 MHz AUTO not applicable HOLD VOLT PHAS 0 0 PULSe DCYCle 10 0 derived from Width and Period DELay 0 00 HOLD TIME UNIT SEC HOLD WIDTh PERiod lus AUTO not applicable TDELay 100 ns TRANsition HOLD TIME UNIT SEC 35 Programming Reference Default Values Standard Settings Parameter RST Default Values LEADING 0 8 ns Agilent 81131A or not applicable TRAiling 0 8 ns Agilent 81131A or not applicable TRAiling AUTO ON TRIGger MODE STARt POSition 1 VOLTage TTL WIDTh 100 ns ROSCillator SOURce INT EXTernal FREQuency 5 MHz VOLTage 1 00 V OFFSet 0 0 mV HIGH 500 mV LOW 500 mV LIMit HIGH 500 mV LOW 500 mV STATe OFF STATus OPERation not applicable PRESet not applicable QUESTionable ON SYSTem ERRor not applicable KEY not applicable PRESet not applicable SECurity OFF SET not applicable VERSion 1992 0 WARN COUNt not applicable STRing not applicable BUFFer not applicable 36 Programming Reference Default Values Standard Settings Parameter RST Default Values TRIGger COUNt 1 PULSes 2 LEVel TERMination 0 0V SOURce INT 37 Programming Reference Programming the Instrument Trigger Modes Programming the Instrument Trigger Modes The follow
20. limited to the implied warranties of merchantability and fitness for a particular purpose Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Warranty This Agilent Technologies product has a warranty against defects in material and workmanship for a period of three years from date of shipment During the warranty period Agilent Technologies will at its option either repair or replace products that prove to be defective For warranty service or repair this product must be returned to a service facility designated by Agilent Technologies The Buyer shall pay Agilent Technologies round trip travel expenses For products returned to Agilent Technologies for warranty service the Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges to return the product to the Buyer However the Buyer shall pay all shipping charges duties and taxes for products returned to Agilent Technologies from another country Notice Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instructions when properly installed on that instrument Agilent Technologies does not warrant that the operation of the instrument software or firmware will be uninterrupted or error free Limi
21. period from internal PLL DIGital PATTern OFF Disable pattern data Pattern Set Pattern mode by setting the DIGital STIMulus PATTern SEGMent 1 2 3 4 LENGth to the required pattern length and switching on digital pattern data The trigger source sets the pulse period for the data pulses See table in Pulses on page 39 Pattern length 512 DIGital STIMulus PATTern SEGMent1 LENGth 512 DIGital STIMulus PATTern SEGMent2 LENGth 0 DIGital STIMulus PATTern SEGMent3 LENGth 0 DIGital STIMulus PATTern SEGMent4 LENGth 0 Disable counted segment loop DIGital STIMulus PATTern LOOP COUNt 1 Jump back to start of segment 1 after the last bit of the last segment here segment 1 DIGital STIMulus PATTern LOOP INFinite STATe ON DIGital STIMulus PATTern LOOP INFinite STARt SEGM1 TRIGger SOURce INTernall Pulse period from internal PLL DIGital PATTern ON Enable pattern data DIGital SIGNall FORMat NRZ Set OUTPUT 1 data to NRZ ARM MODE STARted ARM SOURce EXT1 Switch to started by EXT1 40 Programming Reference Programming the Instrument Trigger Modes Manually Starting and Gating When starting and gating with the MAN key use the following commands STARTED TRG or INITiate CONTinuous ON to start the instrument INITiate CONTinuous OFF to stop the instrument GATED INITiate CONTinuous ON to open the gate INITiate CONTinuous OFF to close the gate TRG to gate for appro
22. that shall generate a PRBS DIG PATT UPD DIGital STIMulus PATTern UPDate Set amp query ON OFF ONCE ON Use this command to enable and disable the automatic updating of the pattern generating hardware following a DIG PATT SEGM 1 2 3 4 DATA command Disable the automatic updating if you want to set up new pattern data in the instrument without affecting the pattern which is currently being generated You can then update the hardware with the new pattern data by sending a DIG PATT UPD ONCE command DIG SIGN 112 FORM DIGital STIMulus SIGNal 1 2 FORMat Set amp Query RZ NRZ R1 Period Frequency RZ 54 Description Example Command Long Form Parameter RST value Description NOTE Example Programming Reference SCPI Instrument Command List Use this command to set and read the data format of channels 1 and 2 when using PATTERN mode If you don t specify a channel number in the command channel 1 is assumed RZ Return to Zero An RZ pulse is generated for each I in the data You can vary the width edges and levels of the pulse R1 Return to One An R1 pulse is generated for each 0 in the data You can vary the width edges and levels of the pulse NRZ Non Return to Zero A pulse of 100 dutycycle is generated for each 1 in the data You can vary the edges and levels of the pulse DIG SIGN FORM NRZ Set channel 1 data format to NRZ DISP DIS
23. this command to set up an infinite loop from the last used segment to the destination segment The infinite loop is ignored if ARM SOURce is IMMediate CONTINUOUS mode since in continuous mode there has to be a jump back to the start of the pattern always from segment 4 to segment 1 Example To setup an infinite loop over segment 2 to segment 4 ARM SOUR EXT1 Set arming source to EXT IN ARM MODE STAR Set arming mode to started ARM SENS POS Arm on positive level DIG PATT LOOP INF ON Enable infinite loop DIG PATT LOOP INF STAR SEGM2 Set jump destination to segment 2 DIG PATT LOOP 1 Disable counted loop DIG PATT ON Switch on PATTERN mode 46 Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Description Example Programming Reference SCPI Instrument Command List DIG PATT LOOP INF STAR DIGital STIMulus PATTern LOOP INFinite STARt Set amp Query SEGM1 SEGM2 SEGM3 SEGM4 1 2 3 4 SEGM1 Use this command to set up the destination segment The infinite loop is ignored if ARM SOURce is IMMediate CONTINUOUS mode since in continuous mode there has to be a jump back to the start of the pattern always from segment 4 to segment 1 See previous example page 46 DIG PATT LOOP STAR DIGital STIMulus PATTern LOOP LEVel 1 STARt Set amp Query SEGM1 SEGM2 SEGM3 SEGM4 1 2 3 4
24. to file 58 System Preset 87 Security 87 T Time Reference Point definition 112 Timing specifications 99 Trailing Edge definition 114 delay 72 Transition Filters 20 121 Index Transition Times 72 definition 114 specification 101 Transition Units 72 Trigger Delay definition 112 Trigger Modes specification 105 TRIGGER OUT level 74 mode 74 position 74 Vv Value Coupling 42 Voltage Limits 81 WwW Warnings 88 108 Warranted Performance 95 Warranty 98 Weight 98 Width specification 100 122 Front Panel Controls Zz DATA ENTRY gt CURSOR DIGIT MODIFY man 8 9 rmo RECALL PERIOD DELAY WIDTH m N Emoe CR SY AUTOSET LEAD TRAIL HIGH LOW ee G ie CE ie oO ON OFF1 ON OFFT ON OFF2 ON OFF2 mrt ENTER LOCAL DATA ENTRY CURSOR QUICK ACCESS Keys Keys Special ENTER amp KNOB FUNCTION UNIT Keys Keys Copyright Agilent Technologies 1998 2000 Edition E0300 Printed in Germany 81130 91021
25. 0 of period PULS HOLD 1I2 SOURce PULSe HOLD 1 2 Set amp Query WIDTh DCYCle TDELay WIDTh Use this command to set whether the pulse width the pulse dutycycle or the pulse trailing edge delay is held constant when the pulse period is changed PULS DEL HOLD1 TIME Hold OUTPUT 1 delay fixed when frequency varies PULS DEL 20NS Set OUTPUT 1 delay to 20ns PULS HOLD1 DCYC Hold OUTPUT 1 Dutycycle fixed when frequency varies PULS DCYC 25PCT Set OUTPUT 1 Dutycycle to 25 PULS PER SOURce PULSe PERiod Set amp Query Numeric 70 Parameter Suffix RST value Specified limits Value coupling Description Example Command Long Form Parameter RST value Description Example Programming Reference SCPI Instrument Command List S with engineering prefixes lus Agilent 81131A 2 5 ns to 1 ms Agilent 81132A 1 5 ns to 1 ms 1 Frequency i Period Use this command to set read the pulse period Select the pulse period source using TRIGger SOURce The currently selected source is programmed by this command Note that the specified limits and available resolution depend on the selected source You cannot set the pulse period if you have selected the CLK IN connector as the frequency source TRIG SOUR EXT2 Select internal PLL as pulse trigger Set pulse frequency to 25 ns TRIG SOUR INT PULS PER 25NS PULS PER AUTO SOURce PULSe PERiod AUTO
26. 1 typ 50 Q 5 typ Max external voltage 2 2 V to 5 5 V 2 0 V to 4 0 V Amplitude 0 10 Vpp to 3 80 Vpp 0 10 Vpp to 2 50 Vpp Level window 2 00 V to 3 80 V 2 00 V to 3 00 V Accuracy 2 50 mV 5 50 mV Limits high and low level can be limited to protect the DUT Resolution 3 digits 10 mV best case Short circuit current 80 mA to 152 mA 80 mA to 120 mA Baseline noise 4 mV RMS typ 8 mV RMS typ Connectors SMACf 3 5 mm Overshoot preshoot 5 50 mV of amplitude typ ringing Normal inverted differential outputs ON OFF relays connect disconnect output HiZ 102 Specifications Agilent 81130A Specifications External Input External Clock PLL Reference Input External Input The external input EXT INPUT is used as trigger gate input in started and gated mode It is sampled once per period External Clock PLL Reference Input The CLK IN REF input can either be used for external clock input or Phase Locked Loop PLL reference e External Clock The output period is determined by the signal at clock input Frequency accuracy can be increased by using a precise external clock e PLL Reference PLL locks either to an external frequency reference at the PLL Reference Input or to an instrument s internal reference PLLisa high accuracy period frequency source When locked to the internal reference period accuracy resolution and jitter are improved When locked to an ext
27. 130A with ae Agilent 81131A Agilent 81132A Variable delay range 0 to 3 00 ps independent of period gt 3 00 ps 0 ns to 1 period Resolution 4 digits 2 ps best case 0 05 of period Accuracy 0 01 100 ps relative to the zero delay 0 035 of period Jitter 0 001 15 ps Fixed Delay 32 ns typ 100 Specifications Agilent 81130A Specifications Deskew Compensation for different cable delays Desk Agilent 81130A with Agilent 81130A with EREE Agilent 81131A Agilent 81132A Range 25 ns Resolution 4 digits 2 ps best case For frequencies gt 170 kHz only Transition Times Measured between 10 and 90 of amplitude except for ECL levels 20 and 80 of amplitude Transition Ti Agilent 81130A with Agilent 81130A with ansion ames Agilent 81131A Agilent 81132A 800 ps or 1600 ps fixed Range selectable lt 600 ps for Vpp lt 1 V 500 ps typ Minimum transition lt 900 ps for Vpp gt 1 V At ECL levels lt 450 ps lt 350 ps 200 ps typ Digital Channel Add In this mode channel 1 and channel 2 are added and fed to channel 1 output Channel 2 is still available 101 Specifications Agilent 81130A Specifications Main Output Level Specifications Level parameters can be entered as high low level in terms of voltage or current or offset amplitude Level Agilent 81130A with Agilent 81130A with Specifications Agilent 81131A Agilent 81132A Output impedance 50 Q
28. 55 gt Set the Service Request Enable Mask SRE Read the Service Request Enable Mask STB Read the Status Byte TRG Trigger TST _ Execute instrument s selftest WAI Wait until all pending actions are complete 18 General Programming Aspects Status Model Status Model i UESTIONABLE STATUS Voltage Warning Current Warning Timing Warning Frequency Warning Pattern Warning BE OPERation Status NOT USED WODIYMMGMEWNH O Status Byte MAV SRO I Status gt e a m oS Ss Standart Operation Complete Query Error Device Dependent Error Execution Error Command Error YNOMOR WN oO Power On YRMORWN The instrument has a status reporting system conforming to IEEE 488 2 and SCPI The above figure shows the status groups available in the instrument Each status group is made up of component registers as shown in the following figure 19 General Programming Aspects Status Model Condition Transition Even Enable Register Filters Register Register Summary Bit Hardware and Firmware condition 1 1 Latched 0 L_Q PTR NTR Condition Register A condition register contains the current status of the hardware and firmware It is continuously updated and is not latched or buffered You can only read condition registers If ther
29. 71034 Boeblingen Germany We declare that the system Agilent 81100 Family of Pulse Data Generators Agilent 81110 A 330 165 MHz Pulse Pattern Generator Agilent 81104 A 80 MHz Pulse Pattern Generator Agilent 81101 A 50 MHz Pulse Pattern Generator Agilent 81112 A 330 MHz 3 5V Output Module Agilent 81130 A 400 660 MHz Puls Pattern Generator Agilent 81131 A 400 MHz 3 5V Output Module Agilent 81132 A 660 MHz 2 5V Output Module Agilent E 8305 A VXI Plugin 250 MHz Pulse Generator Agilent E 8306 A VXI Plugin 100 MHz Clock Generator conforms to the following standards TEC 1010 1 1990 A1 1992 A2 1995 EN61010 1 1993 EN 55011 1991 CISPR 11 Group 1 Class B EN 55011 1991 CISPR 11 Group 1 Class A EN 61000 4 2 1995 ESD 4kVcd 8 kVad 4kV c p EN 61000 4 3 1995 Radiated Immunity 3V m 80 AM ENV 50204 1995 Radiated Immunity 3V m 50 Dty EN 61000 4 4 1995 Fast Transients Bursts 0 5kV 1kV EN 61000 4 5 1995 Surges 1kVdiff 2kV com mode EN 61000 4 6 1995 Conducted Immunity EN 61000 4 8 1993 Power freq magn field 3A m 50Hz IEC1000 4 11 1994 Voltage Dips and Interruptions The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC During the measurements against EN55011 the I O ports were terminated with their nominal impedance the GP IB connection was terminated with the cable Agilent 10833B When the product is connected to other devices t
30. 8 Preshoot definition 116 Programming BURST mode 40 CONTINUOUS mode 39 GATED mode 39 PATTERN mode 40 PULSES mode 39 STARTED mode 39 Programming Times specification 110 Pulse Delay definition 113 120 Index Pulse Frequency 65 Pulse Levels definition 115 Pulse Parameter definitions 111 Pulse Performance definition 116 Pulse Period 70 definition 112 source 93 Pulse Width 75 definition 112 Q Questionable Status 24 Group 82 R Range Coupling 42 Reading Error Queue 84 Keyboard 84 Recalibration period 98 Repeatability definition 117 Reset 87 Ringing definition 116 RZ NRZ 54 S Safety 97 symbols 8 SCPI command dictionary 42 version 88 Segment data 49 length 49 52 53 type 53 Separate Channels 45 Sequences specification 107 Setting load into memory 58 Settling Time definition 116 Simulating Key presses 84 Skew definition 113 Specifications 95 burst mode 107 delay 100 deskew 101 frequency 99 general 97 level 102 memory card 109 output modes 106 patterns 107 period 99 PLL 103 programming times 110 pulse width 100 remote control 109 sequences 107 timing 99 timing PLL 103 transition times 101 trigger modes 105 width 100 Stability definition 115 Standard Event Status 22 Start instrument 45 STARTED level 44 mode 43 44 Started by 44 Status Byte 22 Status Group definition 19 questionable 82 Status Model 19 Preset 82 Stop instrument 45 Store from memory
31. 80 DEG Set OUTPUT 2 phase to 180 PULS DEL1 HOLD TIME Hold OUTPUT 1 delay constant with varying period PULS DEL2 HOLD PRAT Hold OUTPUT 2 phase constant with varying period PULS DEL 112 HOLD SOURce PULSe DELay 1 2 HOLD Set amp Query TIME PRATio TIME Use this command to set read the coupling between the pulse period and the pulse delay TIME The absolute pulse delay is held fixed when the pulse period is varied Pulse phase varies PRATio The pulse phase delay delay as ratio of period is held fixed when the pulse period is varied Pulse delay varies PULS DEL1 500ns Set OUTPUT 1 delay to 500ns PHAS2 180DEG Set OUTPUT 2 phase to 180 PULS DEL1 HOLD TIME Hold OUTPUT 1 delay constant with varying period PULS DEL2 HOLD PRAT Hold OUTPUT 2 phase constant with varying period 69 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Description Example Command Long Form Parameter PULS DEL 1 2 UNIT SOURce PULSe DELay 1 2 UNIT Set amp Query S SEC PCT DEG RAD SEC Use this command to set read the default units for the pulse delay parameter The default unit of a parameter is the unit used when the parameter is programmed to a value without a unit suffix PULS DEL1 UNIT PCT Set OUTPUT 1 delay unit to PULS DEL1 50 Set OUTPUT 1 delay to 5
32. 9 STATe OFFIONILIO Set read complement output state Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page SOURce CORRection 1 2 EDELay 60 TIMe lt value gt Set read channel delay deskew CURRent 1 2 The CURRent and VOLTage subsystem can 60 not be used at the same time Use the HOLD command to select between them LEVel IMMediate AMPLitude lt value gt Set read channel amplitude current OFFSet lt value gt Set read channel offset current 61 HIGH lt value gt Set read channel high level current 62 LOW lt value gt Set read channel low level current 63 LIMit HIGH lt value gt Set read maximum current limits 63 LOW lt value gt Set read minimum current limits 64 STATe ONIOFFI110 Enable Disable the current limits 64 FREQency lt value gt Set read frequency of pulses 65 CW FIXed AUTO ONCE Do a frequency measurement at CLK IN 66 HOLD 1 2 VOLTICURR Switch between VOLTage and CURRent 66 command subtrees 29 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page SOURce PHASe 1 2 lt value gt 67 ADJust lt value gt Set read channel phase PULSe DCYCle 1 2 lt value gt Set read channel dutycycle 67 DELay 1 2 lt value gt Set read channel delay to leading edge 68 HOLD TIMEIPRATio Hold absolute delayldelay as period fixed 69 with varying frequency UNIT S
33. ATA1 1501011 Set up pattern data for channel 1 DIG PATT SEGM1 LENG 5 Set pattern length last bit to 5 DIG PATT ON Switch on PATTERN mode 51 Programming Reference SCPI Instrument Command List Command DIG PATT SEGM 1121314 LENG Long DIGital STIMulus PATTern SEGMent 1 2 3 4 LENGth Form Set amp Query Parameter Numeric RST value 32 0 0 0 Segment 1 32 segments 2 3 and 4 0 Specified Limits 0 to 65504 Description Use this command to set up the number of bits within a segment If a segment is set to a length of 0 the segment will be skipped Restrictions e At least one segment s length has to be gt 0 e The overall length of the pattern has to be lt 65504 and gt two times segment length resolution e Ifat least one segment is used to generate a PRBS the overall pattern length has to be lt 32768 e The segment length has a resolution that depends on the current set frequency period e The segment at the start of a counted loop has a minimum length of 2 times the resolution Segment Length Resolution Pulse Period length must be multiple of lt 3ns 16 3ns lt 6ns 8 6ns lt 12ns 4 12ns lt 24ns 2 gt 24ns 1 NOTE Every change of a segment length will cause the unused pattern data to be overwritten no undo 52 Command Long Form Parameter RST value Specified Limits Description NOTE Command Long Form Parameter R
34. Agilent 81130A 400 660MHz Pulse Data Generator Reference Guide Agilent Technologies Front Panel Display and Softkeys Mode Parameter Area Modify Enter Area PRA A Use the KNOB to select a mode parameter format mode or ade parameter and formats Channel 1 valcke Gale Channel 2 Column Column Press ENTER or a UNIT key to confirm parameter changes gt ON Freq 50 00MHz OFF OFF or 2 Mopiry Delay Ops Delay Ops DtyCyc Width 100 0ns Entry eaae 5 0 0 Focus MODE TRG TIMING LEVELS PATTERN E E E E GRAPH ea j au Press a SOFTKEY to access the required entry screen Press MORE key to access the additional screen menus Screen Selection Area LIMITS TRG LEV MEMCARD CONFIG Reference Guide Agilent 81130A 400 660 MHz Pulse Data Generator Part No 81130 91021 Printed in Germany March 2000 Edition 1 0 E0300 Notice Notice Copyright 1998 Agilent Technologies 1998 2000 All rights reserved No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or translation into a foreign language without prior agreement and written consent from Agilent Technologies Inc as governed by United States and international copyright laws Notice The material contained in this document is subject to change without notice Agilent Technologies makes no warranty of any kind with regard to this material including but not
35. Event ONCE Not applicable Use this command to measure the period at the CLK IN connector If the CLK IN connector is the selected pulse period source you can then read the measured value with PULS PER Select ext CLK IN as pulse trigger Measure period at CLK IN Query pulse period TRIG SOUR EXT2 PULS PER AUTO ONCE PULS PER 71 Programming Reference SCPI Instrument Command List Command Long Form Parameter Parameter Suffix RST value Specified Limits Description Example Command Long Form Parameter RST value Description Command Long Form Parameter PULS TDEL 112 SOURce PULSe TDELay 1 2 Set amp Query Numeric S with engineering prefixes 100 ns Agilent 81131A 1 25 ns to 999 9 pis Agilent 81132A 0 75 ns to 999 9 ps Use this command to program the delay of the trailing edge of the pulse relative to the start of the pulse period This is an alternative method of programming the pulse width PULS DEL1 500NS Set OUTPUT 1 delay to 500 ns PULS DEL1 HOLD TIME Hold OUTPUT 1 delay constant with varying period PULS TDEL1 750NS Set OUTPUT 1 trailing delay to 750 ns PULS TRAN 112 UNIT SOURce PULSe TRANsition 1 2 UNIT Set amp Query Si SECI Er SEC Use this command to set the default units for the pulse transition times The default unit is used when the parameter is programmed to a value without a unit suffix PULS TRAN LI2 SOURce PU
36. ISECIPCTIDEGI Set read delay units 70 RAD HOLD 1 2 WIDTh DCYCle Hold Width DutycyclelTrailing edge delay 70 TDELay fixed with varying frequency PERiod lt value gt Set read pulse period 70 AUTO ONCE Measure pulse period at CLK IN 71 TDelay 1 2 lt value gt Set read trailing edge delay 72 TRANsition 1 2 72 UNIT SISECIPCT Set read transition time units 72 LEADing lt value gt Set read leading edge transition TRAiling lt value gt Set read trailing edge transition 73 TRIGger 1 MODE CONTinuous STARt Set read the mode of the trigger output sig 74 nal generation ignored if not in pattern mode POSition 1121314 Set read the trigger output signal position 74 VOLTage 74 LEVel IMMediate TTL PECL SYM Set read TRIGGER OUT put levels ECLGND ECLN2V WIDTh 1 2 lt value gt Set read channel pulse width 75 30 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page SOURce ROSCillator SOURce INTernallEXTernal Set read PLL reference source 76 EXTernal FREQuency lt value gt Set read frequency of external PLL 76 reference Value will be rounded to 1 MHz 2 MHz 5 MHz or 10 MHz VOLTage 1 2 te LEVel IMMediate AMPLitude lt value gt Set read channel amplitude voltage OFFSet lt value gt Set read channel offset voltage es HIGH lt value gt Set read channel high level voltage 78 LOW lt value gt Set read channel low level volta
37. LSe TRANsSition 1 2 LEADing Set amp Query Numeric 72 Parameter suffix RST value Specified limits Parameter coupling Description Example NOTE Command Long Form Parameter Parameter suffix RST value Specified limits Parameter coupling Description NOTE Programming Reference SCPI Instrument Command List S with engineering prefixes 0 8 ns Agilent 81131A 0 8 ns or 1 6 ns Trailing edge Leading edge fixed coupled Use this command to set read the transition time of the pulse leading edge Note that the leading and trailing edges of the pulse have to fit within the defined pulse width PULS TRAN1 1 6NS Set OUTPUT 1 leading edge to 1 6 ns Selectable transition time is only available with Agilent 81131A PULS TRAN 112 TRA SOURce PULSe TRANsition 1 2 TRAiling Set amp Query Numeric S with engineering prefixes 0 8 ns Agilent 81131A 0 8 ns or 1 6 ns Trailing edge Leading edge fixed coupled Use this command to set read the transition time of the pulse trailing edge Note that the leading and trailing edges of the pulse have to fit within the defined pulse width Selectable transition time is only available with Agilent 81131A 73 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description Command Long Form Parameter RST value Description Command Long Form Parameter RST value PULS
38. Mediate LOW Set amp Query Numeric V with engineering prefixes 500 mV Agilent 81131A 2 00 V to 3 70 V Agilent 81132A 2 00 V to 2 90 V Amplitude High Low Offset High Low 2 High level This command programs the Low level voltage of the OUTPUT signal Note that to set the OUTPUT levels in terms of voltage you first have to execute the SOURce HOLD VOLTage command to enable the SOURce VOLTage subsystem The available voltage range is limited by the specified current limits HOLD VOLT VOLT1 LOW 500MV Enable VOLTAGE subsystem Set OUTPUT 1 low level to 500mV 79 Programming Reference SCPI Instrument Command List Command Long Form Parameter Parameter suffix RST value Description Example Command Long Form Parameter Parameter suffix RST value Description Example VOLT 112 LIM SOURce VOLTage 1 2 LIMit HIGH Set amp Query Numeric V with engineering prefixes 500 mV Use this command to set read the High level voltage limit If you switch on voltage limiting the High level voltage cannot be set above the programmed limit Note that the voltage is NOT limited by the OUTPUT hardware this is a software limit HOLD VOLT Enable VOLTAGE subsystem VOLT1 LIM 2V Set OUTPUT 1 High level limit to 2 V VOLT1 LIM STAT ON Switch on OUTPUT 1 limits VOLT 112 LIM LOW SOURce VOLTage 1 2 LIMit LOW Set amp Query Numeric V with engineering pr
39. OTE Examples Use this command to set read the number of trigger events pulse periods to be generated for each arming event in pulse and burst mode in pattern mode the number of trigger events depends on the used sequence This corresponds to selecting the event mode on the MODE TRG screen PULSES Set a trigger count of 1 so that a single pulse period is generated for each arming event BURST of Set a trigger count of 2 to 65504 so that a burst of 2 to 65504 pulse periods is generated for each arming event Switch off pattern mode so that a pulse is generated in each pulse period DIG PATT OFF For a started burst this command will reduce the number of pulses on channel 1 and channel 2 TRIGger COUNt PULSes 1 2 to the value set by TRIGger COUNt Changes of the number of pulses on the channels will increase the value to of TRIGger COUNt to reflect the changes on the channels To set STARTED BURST of 16 pulse periods and 6 Pulses at Out 1 the burst are started by a positive level at the EXT INPUT ARM SOUR EXT1 Set arming from EXT INPUT ARM MODE STAR Set started mode ARM SENS POS Set arming on positive level TRIG COUN 16 Burst length 16 TRIG COUN PULS1 6 Number of pulses at OUTPUT 1 TRIG SOUR INT1 Pulse period trigger from internal PLL DIG PATT OFF Disable pattern operating mode To set GATED PULSES Pulses at Out1 gated by a positive level at the EXT INPUT ARM SOUR EXT1 Set arming
40. Play WINDow STATe Set amp Query ON OFF 1 O ON This command is used to turn the frontpanel display on and off Switching off the display improves the programming speed of the instrument RST switches the display back on DISP OFF Switch off the frontpanel display 55 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description NOTE Command Long Form Parameter RST value Description gt MMEM CAT MMEMory CATalog Query A Not applicable Use this command to get a listing of the contents of the currently selected directory on the memory card As there is only one memory card slot the parameter A is optional The information returned is lt BYTES_USED gt lt BYTES_FREE gt lt FILE_ENTRY gt lt bytes_used gt The total number of bytes used on the memory card lt bytes_free gt The total number of bytes still available on the memory card lt file_entry gt String containing the name type and size of one file lt FILE_NAME gt lt FILE_TYPE gt lt FILE_SIZE gt The lt file_type gt is always blank A directory name has lt file_size gt 0 gt MMEM CDIR MMEMory CDIRectory Event directory_name Not applicable Use this command to change the current directory on the memory card If you don t specify a directory name parameter the root directory is selected 56 NOTE Examples Command L
41. ST value Programming Reference SCPI Instrument Command List DIG PATT SEGM 1121314 PRES 112 DIGital STIMulus PATTern SEGMent 1 2 3 4 PRESet 1 2 Set lt n gt lt length gt Not applicable lt n gt 0 to 32768 integer lt length gt 1 to 65504 integer Use this command to set up clock data starting from bit 1 with value 1 The parameter lt n gt is used as the divider to generate a CLOCK n sequence squarewave if NRZ data is selected The parameter lt length gt determines the length of the segment n 0 Fill with 0 n 1 Fill with 1 n 2 Sequence 101010101010101 n 4 Sequence 110011001100110 n 6 Sequence 111000111000111 n 8 Sequence 111100001111000 and so on The data length meets the same restrictions than the segment length see page 52 DIG PATT SEGM 1121314 TYPE 112 DIGital STIMulus PA Set amp Query DATA PRBS HIGH Tern SEGMent 1 2 3 4 TYPE 1 2 LOW DATA 53 Programming Reference SCPI Instrument Command List Description Command Long Form Parameter RST value Description Command Long Format Parameter Range Coupling RST value Use this command to set the type of the segment for one channel If the segment type of one channel is set to PRBS the other channel may not be set to DATA If at least one channel uses PRBS then the segment type combination used in this segment has to be used in every segment
42. able CURRENT subsystem Set OUTPUT 1 offset to 50 mA 61 Programming Reference SCPI Instrument Command List Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling Description Example CURR 112 HIGH SOURce CURRent 1 2 LEVel IMMediate HIGH Set amp Query Numeric A with engineering prefixes 10 mA 50 Q into 50 Q 3 8 V Outputs 50 Q into short max 152 mA typical 3 0 V Outputs 50 Q into short max 120 mA typical Amplitude High Low Offset High see Low level This command programs the High level current of the OUTPUT signal Note that to set the OUTPUT levels in terms of current you first have to execute SOURCE HOLD CURRent command to enable the SOURCE CURRent subsystem The available current range is limited by the specified voltage limits HOLD CURR CURR1 HIGH 150MA Enable CURRENT subsystem Set OUTPUT 1 High level to 150 mA 62 Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling Description Example Command Long Form Parameter Parameter suffix RST value Programming Reference SCPI Instrument Command List CURR 112 LOW SOURce CURRent 1 2 LEVel IMMediate LOW Set amp Query Numeric A with engineering prefixes 10 mA 50 Q into 50 Q 3 8V Outputs 50 into short max 152 mA ty
43. agilent com Service English index html Safety Summary Safety Summary The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies Inc assumes no liability for the customer s failure to comply with these requirements General This product is a Safety Class 1 instrument provided with a protective earth terminal The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions All Light Emitting Diodes LEDs used in this product are Class 1 LEDs as per IEC 60825 1 Environmental Conditions This instrument is intended for indoor use in an installation category II pollution degree 2 environment It is designed to operate at a maximum relative humidity of 95 and at altitudes of up to 2000 meters Refer to the specifications tables for the ac mains voltage requirements and ambient operating temperature range Before Applying Power Verify that the product is set to match the available line voltage the correct fuse is installed and all safety precautions are taken Note the instrument s external markings described under Safety Symbols on page 8 Safety Summary Ground the Instrument To minimize shock hazard
44. ble V V V V V OPERation x x x x x Standard Event Status x x x 2 3 Status Byte x x x 4 5 1 Present but not used COND and EVEN always 0 2 Use ESR to query 3 Use ESE to set ESE to query 4 Use STB to query 5 Use SRE to set SRE to query 21 General Programming Aspects Status Model Status Byte The status byte summarizes the information from all other status groups The summary bit for the status byte actually appears in bit 6 RQS of the status byte When RQS is set it generates an SRQ interrupt to the controller indicating that at least one instrument on the bus requires attention You can read the status byte using a serial poll or STB Bit Description Unused always 0 Unused always 0 Unused always 0 QUESTionable Status Summary Bit MAV Message AVailable in output buffer Standard Event Status summary bit RQS ReQuest Service OPERation Status summary Bit unused Noor WO SO KF O Standard Event Status Group w Description Operation Complete set by OPC Unused always 0 Query Error Device Dependent Error Execution Error Command Error Unused always 0 Nana FP WO DS FF Power On 22 OPERation Status Group This Status Group is not used in the instrument General Programming Aspects Status Model ey Description oO oo nu a a A wo Ne e e e a A N e O nused always 0 nused always 0 nused always 0 nu
45. d in Chapter 2 Programming Reference on page 25 13 General Programming Aspects The GP IB Interface Bus The GP IB Interface Bus The GP Interface Bus is the interface used for communication between a controller and an external device such as the Agilent 81130A The GP IB conforms to IEEE standard 488 1987 ANSI standard MC 1 1 and IEC recommendation 625 1 If you are not familiar with the GP IB please refer to the following books e The Institute of Electrical and Electronic Engineers IEEE Standard 488 1 1987 IEEE Standard Digital Interface for Programmable Instrumentation e The Institute of Electrical and Electronic Engineers IEEE Standard 488 2 1987 IEEE Standard Codes Formats and Common Commands for Use with IEEE Standard 488 1 1987 14 General Programming Aspects Agilent 81130A Remote Control Agilent 81130A Remote Control GP IB Address You can only set the GP IB address from the front panel of the instrument refer to the Quick Start Guide The default GP IB address is 10 Modes of The Agilent 81130A has two modes of operation Operation ee The instrument is operated using the front panel keys e Remote After receiving the first command or query via the GP IB the instrument is put into remote state The front panel is locked To return to local operating mode press SHIFT LOCAL 15 General Programming Aspects Programming Recommendations Programming Recom
46. e is no command to read the condition register of a particular status group then it is simply invisible to you Transition Filters Transition filters are used to detect changes of state in the condition register and set the corresponding bit in the event register You can set transition filter bits to detect positive transitions PTR negative transitions NTR or both Transition filters are therefore read write registers They are unaffected by CLS Event Register An event register latches transition events from the condition register as specified by the transition filters or records status events Querying reading the event register clears it as does the CLS command There is no buffering so while a bit is set subsequent transition events are not recorded Event registers are read only 20 General Programming Aspects Status Model Enable Register The enable register defines which bits in an event register are included in the logical OR into the summary bit The enable register is logically ANDed with the event register and the resulting bits ORed into the summary bit Enable registers are read write and are not affected by CLS or querying Although all status groups have all of these registers not all status groups actually use all of the registers The following table summarizes the registers used in the instrument status groups Registers in Group Status Group CONDition NTR PTR EVENt ENABLe QUEStiona
47. efixes 500 mV Use this command to set read the Low level voltage limit If you switch on voltage limiting the Low level voltage cannot be set below the programmed limit Note that the voltage is NOT limited by the OUTPUT hardware this is a software limit HOLD VOLT Enable VOLTAGE subsystem VOLT1 LIM LOW OV Set OUTPUT 1 Low level voltage VOLT1 LIM STAT ON Switch on OUTPUT 1 limits 80 Command Long Form Parameter RST value Description NOTE Example Command Programming Reference SCPI Instrument Command List VOLT 112 LIM STAT SOURce VOLTage 1 2 LIMit STATe Set amp Query ON OFF 1 O OFF This command switches the output limits on or off When you switch on the output limits cannot program the output levels beyond the programmed limits until you switch off the voltage limits The limits apply whether you program High Low levels or Amplitude Offset levels You can switch the limits on and off in both the SOURce CURRent and the SOURce VOLTage subsystems but the current and voltage limits are not enabled disabled independently The voltage and current limits are always enabled disabled together HOLD VOLT Enable VOLTAGE subsystem VOLT1 LIM 2V Set OUTPUT 1 High level voltage limit to 2 V VOLT1 LIM LOW OV Set OUTPUT 1 Low level voltage limit to 0 VOLT1 LIM STAT ON Switch on OUTPUT 1 limits STATus OPERation This command tree accesses the OPERation status group The OPERation
48. enated string 89 BUFFer Read maximum possible length of 89 concatenated string TRIGger Pulse mode and period source SEQuence 1 STARt COUNt lt value gt Set read number of triggered periods to be 89 generated per ARM event BURST period PULSes 1 2 lt value gt Set red the number of pulses within the trig 92 gered periods at OUTput 1 or OUTput 2 LEVel TERMination lt value gt Set read termination voltage level at CLKIN 92 SOURce IMM I INT 1 EXT2 Set read trigger source Immediate PLL 93 CLK IN 33 Programming Reference Default Values Standard Settings Default Values Standard Settings Parameter RST Default Values ARM LEVel THReshold 1 0 V TERM 0 0 V MODE STARted SENSe POS SOURce IMM INITiate CONTinuous ON CHANnel MATH OFF DIGital PATTern OFF LOOP INFinite ON LOOP INFinite STARt SEGM1 LOOP 1 LOOP STARt SEGM1 LOOP LENGth 1 PRBS 7 SEGMent DATA see page 49 SEGMent LENGth 32 0 0 0 SEGMent PRESet not applicable SEGMent TYPE DATA UPDate ON SIGNal FORMat RZ DISPlay ON MMEMory CATatalog not applicable CDIRectory not applicable COPY not applicable DELete not applicable 34 Programming Reference Default Values Standard Settings Parameter RST Default Values INITialize not applicable LOAD STATe not applicable STORe STATe not applicable OUTPut OFF COMPlement OFF CORRection EDELay 0 0s CURRent 20 mA 50 Q
49. ength of the length of the data 16 Length of the data 10 00 16 bytes of data 011213 Start of block 0 Replaces the data block length specification Length is calculated automatically 11213 5 bytes of data The data length meets the same restrictions than the segment length see page 52 DIG PATT SEGM1 DATA 1511213 50 Example Programming Reference SCPI Instrument Command List The instrument uses each byte of data set one Bit in the pattern memory If you don t specify a particular channel the lowest two bits of each byte are used to set all three channels and the top six bits are ignored Note that you can therefore use the ASCII characters 0 1 2 and 3 to program Outputs 1 and 2 in binary DATA CH2 OUTPUT2 ASCII ignored used D7 D6 D5 D4 D3 D2 D1 D0 0 00 1100 0 0 0 1 00 1100 0 1 0 2 00 1100 1 0 1 3 00 1100 Te J 1 CH1 OUTPUT1 rPorso DIG PATT SEGM1 DATA2 1501011 If you specify a particular channel the least significant bit of each byte is used to set the selected channel and the top seven bits are ignored Note that you can therefore use the ASCII characters 1 and 0 to set individual bits to 1 and 0 DATA CH2 CH1 OUTPUT2 OUTPUT1 ASCII ignored LSB D7 D6 D5 D4 D3 D2 D1 DO 0 00 1 1 00 0 remains unchanged 1 00 1 1 00 0 1 1 remains unchanged ARM SOUR IMM Set continuous mode DIG PATT SEGM1 D
50. ernal frequency reference the external frequency affects these accuracies 103 Specifications Agilent 81130A Specifications Specifications of EXT INPUT CLK IN REF Input Input Parameters External Input EXT IN External clock PLL reference CLK IN REF Connectors Termination voltage Termination voltage resolution Input Transitions Maximum input voltage Threshold Threshold resolution Input impedance coupling Input frequency Duty cycle Typical delay to trigger out Typical delay to output Sensitivity 1 4Vto 3 7 V 50 mV 50 Q typ de 0 to 330 MHz DC coupled 22 ns 0 1 period 54ns 0 1 period SMA f 3 5 mm 2 10 V to 3 30 V 50 mV lt 20 ns 3 V to 6 V ac coupled not applicable 50 Q typ ac External Clock 170 kHz to 660 MHz PLL Reference 1 2 5 10 MHz 50 10 duty cycle 21 ns 53 ns lt 400 mVpp a The uncertainty of 1 period can be eliminated if an external clock is used and the following setup and hold times are observed setup time 0 3 ns to 4 3 ns hold time 2 8 ns to 4 0 ns 104 Specifications Agilent 81130A Specifications Trigger Modes Continuous Generate continuous pulses bursts or patterns Externally Started Each active input transition rising or falling generates pulses a burst or a pattern The trigger source can be selected from e External Input e MAN key Exte
51. ge 79 LIMit HIGH lt value gt Set read maximum voltage limit 80 LOW lt value gt Set read minimum voltage limit 80 STATe ONIOFFI110 EnablelDisable the voltage limits 8 amp 1 31 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page STATus OPERation 81 EVENt Read Operation event register 8 amp 1 CONDition Read Operation condition register 81 ENABle Numeric Set Read Operation enable register 81 NTRansition Numeric Set Read Operation negative transition 8 amp 1 register PTRansition Numeric Set Read positive transition register 81 PRESet Clear and preset status groups 82 QUEStionable 82 EVENt Read Questionable event register 82 CONDition Read Questionable condition register 82 ENABle Numeric Set Read Questionable enable register 82 NTRansition Numeric Set Read Questionable negative transition 82 register PTRansition Numeric Set Read Questionable positive transition register 32 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page SYSTem ERRor Read error queue 84 KEY Numeric Simulate key press or read last key pressed 84 PRESet no function 87 SECurity 87 STATe ONIOFF Switch security on and off SET Block data Set read complete instrument setting 88 VERSion Read SCPI compliance setting 88 WARNing 88 COUNt J Read number of active warnings STRing Read active warnings as concat
52. he user must ensure that the connecting cables and the other devices are adequately shielded to prevent radiation Boeblingen June 09th 1998 Wolfgang Fenske Update Oct 13th 1998 Regulation Consultant 96 Specifications Agilent 81130A Specifications Agilent 81130A Specifications General Environmental Conditions Operating temperature 0 C to 55 C Storage temperature 40 C to 70 C Humidity 95 r h up to 40 C ambient temperature Altitude up to 2000 m Installation Category II Pollution Degree 2 EMC conforms to EN50082 1 EN55011 Class A Battery Lithium type CR2477 N Agilent part number 1420 0557 Safety IEC1010 CSA1010 Power requirements 100 240 Vac 10 50 60 Hz 100 120 Vac 10 400 Hz Power consumption 300 VA max Maximum Dimensions H x W x D 89 mm x 426 mm x 521 mm 97 Specifications Agilent 81130A Specifications Weight Net 8 5 kg Single Channel 9 2 kg Dual Channel Shipping 13 8 kg Dual Channel Recalibration period 1 year recommended Warranty 3 years standard Acoustic Noise Emission For ambient temperature up to 30 C under normal operation and at the typical operator position LpA 52 dB 5 9 bel typical 47 dB 5 3 bel at 23 C typical Measured in accordance with ISO 7779 EN 27779 98 NOTE Specifications Agilent 81130A Specifications Timing Specifications The timing characteristics are measured at 50
53. ing figure shows the instrument s arming triggering model RST or power on p Idle xk Trigger system it stall initiated no longer initiated Y Initiated A still initiated y wait for Arm A completed of Trigger Notes ARM conditions loops ere satisfied or 1 The instrument is always initiated in CONTINUOUS modes no longer initiated The instrument is automatically initiated in MANual started gated modes wait for Trigger 2 1 in Pulses Mode same as TRIGger COUNt i TRIGger COUNt in Continuous Gated Mode j Maximum of TRIGger COUNt PULSes1 and TRIGger COUNt PULSes2 Ne Pa in Started Burst mode Trigger conditions Depends on sequence in Pattern Mode may be infinite satisfied For details ofthe You program the comprehensive triggering capabilities of the instrument trigger count using the SCPI ARM and TRIGger subsystems Using these two command refer to command subsystems you can program the operating modes of the TRIG COUN on instrument which are set up using the MODE TRG screen on the page 89 frontpanel Use the ARM subsystem to select the overall triggering mode of the instrument CONTINUOUS STARTED GATED and the TRIGger subsystem to select the pulse period source triggering and number of pulse periods per ARM event BURST length In pattern mode the pattern length is the sum of each used segment s length 38
54. into the instrument s output buffer If the queue is empty the value 0 is returned meaning No Error If the queue overflows at any time the last error code is discarded and replaced with 350 meaning Queue overflow SYS ERR Query for errors Output example 222 Data out of range overlap at output 1 Width gt Period The above message is an example of a customized description Generic descriptions are available in the SCPI 1995 Command Reference items 21 8 4 to 21 8 11 Send SYST WARN STR Alternatively the HELP key shows the current errors and warnings and their description on the instruments display SYST KEY SYSTem KEY Set amp Query Numeric No suffix allowed Not Applicable 84 Specified limits Programming Reference SCPI Instrument Command List No Key Description 255 No key pressed Query only 0 DATA ENTRY 0 1 DATA ENTRY 1 2 DATA ENTRY 2 3 DATA ENTRY 3 4 DATA ENTRY 4 5 DATA ENTRY 5 6 DATA ENTRY 6 7 DATA ENTRY 7 8 DATA ENTRY 8 9 DATA ENTRY 9 10 DATA ENTRY 11 DATA ENTRY 12 Cursor Up 13 Cursor Down 14 Cursor Left 15 Cursor Right 16 MAN 17 STORE 18 HELP 19 SHIFT 20 MORE 21 Softkey 1 22 Softkey 2 23 Softkey 3 24 Softkey 4 25 NANO 85 Programming Reference SCPI Instrument Command List Description NOTE No Key Description 26 MICRO MEGA 27 MILLI KILO 28 ENTER 29 Modify Knob Left counter clockwise 30 M
55. iting the Low level current cannot be set below the programmed limit The current is NOT limited by the OUTPUT hardware this is a software limit HOLD CURR Enable CURRENT subsystem CURR1 LIM LOW 50MA Set OUTPUT 1 Low level current limit to 50mA CURR1 LIM STAT ON Switch on OUTPUT 1 limits CURR 112 LIM STAT SOURce CURRent 1 2 LIMit STATe Set amp Query ON OFF 1 O 64 RST value Description NOTE Example Command Long Form Parameter Parameter Suffix RST value Specified limits Value coupling Programming Reference SCPI Instrument Command List OFF This command switches the output limits on or off When you switch on the output limits cannot program the output levels beyond the programmed limits until you switch off the output limits The limits apply whether you program High Low levels or Amplitude Offset levels You can switch the limits on and off in both the SOURce CURRent and the SOURce VOLTage subsystems but the current and voltage limits are not enabled disabled independently The voltage and current limits are always enabled disabled together Enable CURRENT subsystem Set OUTPUT 1 High level current limit to 50 m Set OUTPUT 1 LOW level current limit to 50mA HOLD CURR CURR1 LIM 50MA CURR1 LIM LOW 50MA CURR1 LIM STAT ON Switch on OUTPUT 1 limits FREQ SOURce FREQuency CW FIXed Set amp Query Numeric Hz with engineering prefixes o
56. mendations Here are some recommendations for programming the instrument Start programming from the default setting The common command for setting the default setting is RST Switch off the automatic update of the display to increase the programming speed The device command for switching off the display is DISPlay OFF The SCPI standard defines a long and a short form of the commands For fast programming speed it is recommended to use the short forms The short forms of the commands are represented by upper case letters For example the short form of the command to set 100 ns delay is PULS DEL 100NS To improve programming speed it is also allowed to skip optional subsystem command parts Optional subsystem command parts are depicted in square brackets e g set amplitude voltage of output 1 SOURce VOLTage 1 LEVel IMMediate AMPLitude Sufficient to use VOLT 1 2V For the commands to set the timing and level parameters except of period frequency you can explicitly specify the output to be programmed for compatibility reasons If there is no output specified the commands will set the default output 1 So for setting a high level of 3 Volts for output 1 the commands are VOLT HIGH 3V sets high level of 3 V at out 1 VOLT1 HIGH 3V sets high level of 3 V at out 1 16 General Programming Aspects Programming Recommendations e Itis recommended to test a new setting that will be p
57. nation Voltage 43 Threshold 43 External Clock 103 External Input 103 F Frequency specification 99 Functional Coupling 42 G GATED level 44 mode 43 44 Gated by 44 General Specifications 97 GP IB information 14 H HELP Key 109 HIGH 53 High level current 62 current limit 63 definition 115 voltage 78 voltage limit 80 119 Index Human Interface 108 I Infinite Loop 46 47 108 Instrument Setting 88 Interchannel Delay definition 113 J Jitter definition 115 K Key code Reference 86 L Last Key Pressed 84 Leading Edge 72 definition 114 Level specification 102 Linearity definition 114 Load file into memory 58 Loop Length 48 Loop Start 47 LOW 53 Low level current 63 current limit 64 definition 115 voltage 79 voltage limit 80 M Main Output Level Specification 102 Measure CLK IN frequency 66 period 71 Memory Card catalog DIR 56 change directory 56 copy file 57 delete file 57 format 58 initialize 58 load from Form 58 store to 59 N Non Volatile Memory 109 NRZ RZ 54 o Offset current 61 definition 115 voltage 77 Operation Status 23 Output modes specification 106 OUTPUT ON OFF 59 Overprogramming 108 Overshoot definition 116 P PATTERN Data 49 LENGTH 52 LOOP 45 46 47 48 mode 48 PRBS 48 Update 54 Pattern Clock n 53 Patterns specification 107 Period specification 99 Phase 67 PLL Reference 76 frequency 76 Input 103 Power requirements 97 PRBS 53 10
58. nformation please refer to Chapter 1 General Programming Aspects on page 13 25 Programming Reference Agilent 81130A SCPI Command Summary Agilent 81130A SCPI Command Summary Command Parameter Description see page ARM Trigger mode and source SEQuence 1 STARt LAYer 1 LEVel THReshold lt value gt Set read threshold level at EXT INPUT 43 TERMination lt value gt Set read the termination voltage at EXTIN 43 PUT MODE GATed STARted Set read the trigger mode if the source is 43 not IMMediate SENSe POSitive NEGative Set read trigger on edge or gate on level 44 SOURce EXT1 IMM MAN Set read trigger source 44 EXT INPUT IMMediate MAN key INITiate CONTinuous ON OFF 1110 Starts or stops the instrument ifthe arming 45 source is not IMMediate CHANnel MATH OFF DIGital Set read addition of channels of channels 1 45 amp 2 at output 1 26 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page DIGital STIMulus PATTern 48 LOOP 45 INFinite 46 STATe ON OFF1110 Enables Disables the infinite loop STARt SEGM1 SEGM2 Set read the start of the infinite loop the 47 SEGMS SEGM4 segment to restart the output after the last bit of the last used segment LEVel 1 COUNt lt value gt Set read the segment loop count STARt SEGM1 SEGM2 Set read the start segment for the counted 47 SEGMB SEGM4 segme
59. ng edge of the trigger output Width jitter is the stability of the trailing edge with regard to the leading edge Stability Long term average instability over a specific time for example hour year Jitter is excluded Pulse Levels Pulse output is specified as pulse top and pulse base usually referred to as high level and low level or as peak to peak amplitude and median offset A window specification shows the limits within which the pulse can be positioned High Level Pe Witte A Median Max Amplitude 8 fe Mus High Level Window Low Level Offset esa oe Pe pe a Min Low Level Zero Volts 115 Specifications Pulse Parameter Definitions Preshoot Overshoot Ringing Preshoot and overshoot are peak distortions preceding following an edge Ringing is the positive peak and negative peak distortion excluding overshoot on pulse top or base For example a combined preshoot overshoot and ringing specification of 5 implies e Overshoot undershoot lt 5 e Largest pulse top oscillation lt 5 of pulse amplitude Overshoot e g 5 Ringing POSITIVE y e g 3 100 0 Amplitude mauz n n v Preshoot A e g 2 Settling Time Time taken for pulse levels to settle within level specifications measured from 90 point on leading edge 90 Amplitude Settling Time 116 Specifications Pulse Parameter Definitions Repeatability When an instrument opera
60. nt loop LENGth 1121314 Set read the number of segments within the 48 segment loop PRBS lt base gt Set read the PRBS base the same for all 48 PRBS segments SEGMent 1 21314 DATA 1 2 lt data gt Set read pattern data 49 LENGth lt segment length gt Set read the length of the segment if the 52 length is increased 0 bits are appended PRESet 1 2 lt n gt lt length gt Set preset pattern with frequency CLOCK n 53 TYPE 1 2 DATAI Set read the type of the segment 53 PRBSIHIGHILOW STATe OFFIONIOI1 Switch PATTERN pulse mode on or off UPDate OFFIONIONCE Update the hardware with pattern data 54 SIGNal 1 2 FORMat RZ R11 NRZ Set read data format of output channel 54 27 Programming Reference Agilent 81130A SCPI Command Summary Command Parameter Description see page DISPlay 55 WINDow STATe ONIOFFI110 Set read frontpanel display state MMEMory CATalog A Read directory of memory card 56 CDIRectory lt name gt Change directory on memory card 56 COPY lt source gt A lt dest gt Copy a file on memory card ar LA DELete lt name gt A Delete a file from memory card at INITialize A DOS Initialize memory card to DOS format 58 LOAD STATe lt n gt lt name gt Load file from memory card to memory n 58 STORe STATe lt n gt lt name gt Store memory n to memory card 58 OUTPut 1 2 59 NORMa1 STATe OFFIONILIO Set read normal output state COMP lement 5
61. nteger Use this command to set up PRBS polynom for all PRBS segments on all channels 48 Example Command Long Form Parameter RST value Programming Reference SCPI Instrument Command List To set up a repeating 2 1 PRBS on OUTPUT 1 ARM SOUR IMM Set continuous mode DIG PATT SEGM1 LENG 1023 Set segment 1 pattern length last bit to 1023 DIG PATT SEGM2 LENG 0 Set segment 2 to be ignored DIG PATT SEGM3 LENG 0 Set segment 3 to be ignored DIG PATT SEGM4 LENG 0 Set segment 4 to be ignored DIG PATT SEGM1 TYPE1 PRBS Set type of segment 1 on channel 1 to PRBS DIG PATT LOOP 1 Disable segment looping DIG PATT PRBS 10 Set PRBS base to 10 DIG PATT ON Switch on PATTERN mode DIG PATT SEGM 1121314 DATA 1I2 DIGital STIMulus PATTern S EGMent 1 2 3 4 DATA 1 2 Set amp Query lt data gt Segment 1 Channel 112 Description Bit 1 Bit 2 1 CH1 OUTPUT 1 1 0 2 CH2 OUTPUT 2 0 1 Segment 2 to Segment 4 set to all bits set to zero 49 Programming Reference SCPI Instrument Command List Description NOTE Example Use this command to set or read a segment s data of one or all channels starting from Bit 1 The lt data gt is an arbitrary block of program data as defined in IEEE 488 2 7 7 6 2 for example 1511213 Start of block 1 Length of the length of the data 5 Length of the data 11213 5 bytes of data 2161000100010001000 Start of block 2 L
62. odify Knob Right clockwise In query form this command reads the last key pressed The buffer is emptied by RST and returns the value 1 when empty In set form the command simulates pressing a key on the frontpanel Simulated key press are also recorded as the last key pressed SYST KEY 19 sets the instrument to LOCAL mode 1 In remote mode only the softkeys under the display and the SHIFT LOCAL key are active Since the instrument normally switches to remote mode when any command is received including SYSTem KEY simulating one of the other disabled keys has no effect If you want to simulate full frontpanel operation you must prevent the instrument from entering remote mode by using the REN line of the GP IB to maintain local mode LOCAL 7 in BASIC If you do this the SYSTem KEY command is the only command which works Any other commands will be buffered in the instrument blocking any further SYSTem KEY commands until remote mode is enable 86 Command Long Form Command Long Form Parameter RST value Description CAUTION Programming Reference SCPI Instrument Command List SYST PRES SYSTem PRESet Same as RST SYST SEC SYSTem SECurity STATe Set amp Query ON OFF OFF Do not switch on system security unless you are willing to erase the instrument settings stored in the instrument All instrument memories including the current setting will be
63. ong Form Parameter RST value Description Examples Command Long Form Parameter RST value Description Programming Reference SCPI Instrument Command List Note that you cannot use DOS pathnames as directory names you can only select a directory name within the current directory Use the directory name to move back to the parent directory of the current directory unless you are already in the root directory MMEM CDIR Select root directory MMEM CDIR PERFORM Select directory PERFORM MMEM CDIR Select parent directory MMEM COPY MMEMory COPY Event filename A copyname A Not applicable Use this command to copy an existing file filename in the current directory to a new file copyname If copyname is the name of a sub directory in the current directory a copy of the file filename is made in nou the sub directory Use as copyname to copy a file into the parent directory of the current directory MMEM COPY test1 test2 Copy testl to test2 MMEM COPY test1i 0 Copy test1 into parent directory MMEM DEL MMEMory DELete Event filename Not applicable Use this command to delete file filename from the currently selected directory 57 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description CAUTION Command Long Form Parameter RST value Specified Limits
64. oop count 1 to 220 Memory depth per channel 65504 PRBS repetition length Segment length 1 to 65504 Frequency dependent resolution see ta ble below Data types Data editable High Low PRBS 2 1 with n 7 8 15 Data formats RZ R1 NRZ 107 Specifications Agilent 81130A Specifications The following rules apply for pattern sequences e The resolution of the segment length value depends on the frequency Resolution Frequency in MHz Period in ns 16 333 4 666 7 1 500 2 999 8 166 7 333 3 3 000 5 999 4 83 4 166 6 6 000 11 99 2 41 7 83 3 12 00 23 99 1 min freq 41 6 24 00 max period e Ifthe counted loop is used the minimum length of the first segment is twice the resolution e An infinite loop over a single segment requires a minimum segment length of twice the resolution e Within a segment PRBS is allowed to be combined with data type PRBS High or Low only e PRBS must be combined with always the same data type in all segments Human Interface Overprogramming Parameter values can be entered exceeding the specified range Warnings and Errors Warning messages indicate potentially conflicting parameters due to accuracy tolerances Error messages indicate conflicting parameters 108 Specifications Agilent 81130A Specifications Help Key Displays a context sensitive message about the selected parameter Concept
65. or adhered to could result in personal injury Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met The CAUTION sign denotes a hazard It calls attention to an operating procedure or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met About this Book About this Book This guide provides reference information primarily for programming the Agilent 81130A via remote control Chapter 1 General Programming Aspects on page 13 gives general hints for programming instruments like the Agilent 81130A using SCPI commands Chapter 2 Programming Reference on page 25 provides detailed information on the SCPI commands supported by the instrument Chapter 3 Specifications on page 95 lists the instrument s technical specifications and provides exact definitions for the instrument s parameters For an introduction and information on the Agilent 81130A s user interface please refer to the Quick Start Guide p n 81130 91020 About this Book Conventions Used in this Book This book uses certain conventions to indicate elements of the Agilent 81130A s user interface The following table shows some examples Softkeys Press the MODE TRG softkey to access the Mode Trigger screen Hardkeys
66. ot Applicable Description This command reads the event register in the QUEStionable status group STATus QUEStionable CONDition Form Query RST value Not Applicable Description This command reads the condition register in the QUEStionable status group STATus QUEStionable ENABle Form Set amp Query Parameter Numeric RST value Not affected by RST Specified 0 32767 limits Description This command sets or queries the enable register in the QUEStionable status group STATus QUEStionable NTRansition Form Set amp Query Parameter Numeric RST value Not applicable Specified 0 32767 limits Description This command sets or queries the negative transition register in the QUEStionable status group STATus QUEStionable PTRansition Form Set amp Query Parameter Numeric RST value Not applicable Specified 0 32767 limits Description This command sets or queries the positive transition register in the QUEStionable status group 83 Programming Reference SCPI Instrument Command List Command Long Form RST value Description Example Command Long Form Parameter Parameter suffix RST value SYST ERR SYSTem ERRor Query Not Applicable Use this command to read the instrument error queue The instrument error queue can store up to 30 error codes on a first in first out basis When you read the error queue the error number and associated message are put
67. overwritten with the default settings if you e Switch off system security e Switch the instrument off and on again e If you accidentally switch on system security and want to rescue the settings stored in the instrument store the settings on a memory card You can then recall them from the memory card later Use this command to switch on system security mode Switch on system security if you need to make sure that all instrument settings stored in the instrument are erased automatically when the instrument is switched off or when security mode is switched off The instrument settings are erased by overwriting them with the default settings System security mode is not available via the frontpanel If you want to erase all settings by hand 1 SHIFT STORE 0 to RECALL the default settings from memory 0 2 STORE 1 STORE 2 STORE 4 to store the defaults in memories 1 to 4 87 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description Command Long Form RST value Description Command Long Form RST value Description SYST SET SYSTem SET Set amp Query Block data Not applicable In query form the command reads a block of data containing the instrument s complete set up The set up information includes all parameter and mode settings but does not include the contents of the instrument setting memories the status group registers or the DISPlay
68. pical 3 0V Outputs 50 Q into short max 120 mA typical Amplitude High Low Offset High e High level This command programs the Low level current of the OUTPUT signal Note that to set the OUTPUT levels in terms of current you first have to execute the SOURce HOLD CURRent command to enable the SOURce CURRent subsystem The available current range is limited by the specified voltage limits Enable CURRENT subsystem Set OUTPUT 1 Low level to 50 mA HOLD CURR CURR1 LOW 50 MA CURR 112 LIM SOURce CURRent 1 2 LIMit HIGH Set amp Query Numeric A with engineering prefixes 10 0 mA 63 Programming Reference SCPI Instrument Command List Description NOTE Example Command Long Form Parameter Parameter suffix RST value Description NOTE Example Command Long Form Parameter Use this command to set read the High level current limit If you switch on current limiting the High level current cannot be set above the programmed limit The current is NOT limited by the OUTPUT hardware this is a software limit HOLD CURR Enable CURRENT subsystem CURR1 LIM 50 MA Set OUTPUT 1 High level current limit to 50 mA CURR1 LIM STAT ON Switch on OUTPUT 1 limits CURR 1 2 LIM LOW SOURce CURRent 1 2 LIMit LOW Set amp Query Numeric A with engineering prefixes 10 0 mA Use this command to set read the Low level current limit If you switch on current lim
69. r MHZ for Megahertz 1 00 MHz Agilent 81131A 1 kHz to 400 MHz Agilent 81132A 1 kHz to 660 MHz 1 Frequency Period 65 Programming Reference SCPI Instrument Command List Description Example Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Description Use this command to set read the pulse frequency Select the frequency source for the pulse frequency using TRIGger SOURce The currently selected source is programmed by this command Note that the specified limits and available resolution depend on the selected source You cannot set the pulse frequency if you have selected the CLK IN connector as the frequency source TRIG SOUR EXT Select internal PLL as pulse trigger Set pulse frequency to 75 MHz TRIG SOUR INT FREQ 75MHz FREQ AUTO SOURce FREQuency CW FIXed AUTO Event ONCE Not applicable Use this command to measure the frequency at the CLK IN connector If the CLK IN connector is the selected pulse frequency source you can then read the measured value with FREQ TRIG SOUR EXT2 Select ext CLK IN as pulse trigger FREQ AUTO ONCE Measure frequency at CLK IN FREQ Query pulse frequency HOLD SOURce HOLD Set amp Query VOLTage CURRent VOLT Use this command to enable either of the SOURce VOLTage or SOURce CURRent subsystems You can control the signal levels of the
70. rms used in the instrument specifications In the following figure a graphical overview of the pulse parameters is provided Pulse Period i External a gt Trigger i i Signal 7 r 4 i Trigger i 1 Trigger Delay I Output i 1 i l Pulse Transition Pulse Delay Width i Times r l Output i i Channel A _DelayA_ Output lt gt f i lt a BI nterchanne i i Delay Skew i Channel B i Output ne i e Delay B 111 Specifications Pulse Parameter Definitions Time Reference Point The time reference point is at the median of the amplitude 50 amplitude point on pulse edge 100 50 Median 0 Pulse Period The time interval between the leading edge medians of consecutive output pulses 50 Pulse Period Trigger Delay Interval between trigger point of the external trigger input signal and the trigger output pulse s leading edge median Pulse Width Interval between leading and trailing edge medians The specified and displayed value is that obtained with fastest edges essentially equal to the interval from the start of the leading edge to the start of the trailing edge By designing so that the pulse edges turn about their start points the interval from leading edge start stays unchanged in 112 Specifications Pulse Parameter Definitions practice start points may shift with changes in transition time when transi
71. rnally Gated The active input level high or low enables pulses bursts or patterns The output is stopped immediately on an external gate signal therefore the last cycle may be incomplete The gate source can be selected from e External Input e MAN key 105 Specifications Agilent 81130A Specifications Specification of Trigger Output This output provides one pulse per period with 50 duty cycle typically In pattern mode the trigger pulse can be set to mark the start of any segment Trigger Output Specification Agilent 81130A Level into 50 Q selectable TTL into GND PECL into 3 V ECL into 2 V ECL into GND Output impedance 50 Q typ Trigger pulse width 50 of period typ Maximum external voltage 2 V to 3 V Transition times 600 ps typ Delay from trigger to output 32 ns typ Output Modes The output mode determines whether the output signal consists of e pulses e bursts of pulses e patterns of pulses The output signal is controlled by the Trigger mode 106 Specifications Agilent 81130A Specifications Burst Mode Burst Agilent 81130A Burst count 2 to 65504 Burst period 2 to 65504 clocks a Minimum number of clocks is twice the segment length resolution see table Patterns and Sequences Patterns and Sequences Patterns Sequences Specifications Agilent 81130A Number of segments 4 Number of infinite loops 1 Number of counted loops 1 L
72. rogrammed on the instrument by setting it up manually Enable the outputs so that the instrument s error check system is on and possible parameter conflicts are immediately displayed When you have found the correct setting then use this to create the program In the program it is recommended to send the command for enabling outputs for example OUTPut ON as the last command e Selftest of the instrument can be invoked by the common command TST e Ifit is important to know whether the last command is completed then send the common command OPC 17 General Programming Aspects Common Command Summary Common Command Summary This table summarizes the IEEE 488 2 common commands supported by the Agilent 81130A Command Parameter Description CLS Clear the status structure ESE lt 0 255 gt Set the Standard Event Status register mask ESE Read the state of the Standard Event Status enable register ESR Read the state of the Standard Event Status event register IDN Read the Instrument s Identification string LRN Read the complete Instrument Setting OPC Set the Operation Complete bit when all pending actions are complete OPC Read the status of the Operation Complete bit OPT Read the installed options RCL lt 0 4 gt Recall a complete Instrument Setting from memory RST Reset the instrument to standard settings SAV lt l1 4 gt Save the complete Instrument Setting to memory SRE lt 0 2
73. sed always 0 nused always 0 nused always 0 nused always 0 nused always 0 nused always 0 nused always 0 nused always 0 nused always 0 nused always 0 U U U U U U U Unused always 0 U U U U U U U nused always 0 Always 0 23 General Programming Aspects Status Model QUEStionable Status Group ey QUEStionable U U U U U oO oOo nu a a A wo Ne e e m won e e oO U U U U U en A Voltage warning Current warning Time warning nused always 0 nused always 0 Frequency warning nused always 0 nused always 0 nused always 0 Pattern warning nused always 0 nused always 0 nused always nused always 0 nused always 0 15 Always 0 The QUEStionable Status group is used to report warning conditions amongst the voltage current pulse timing frequency and pattern parameters Warnings occur when a parameter although not outside its maximum limits could be causing an invalid signal at the output because of the actual settings and uncertainties of related parameters 24 Programming Reference This chapter provides reference information on the following topics e Agilent 81130A SCPI Command Summary on page 26 e Default Values Standard Settings on page 34 e Programming the Instrument Trigger Modes on page 38 e SCPI Instrument Command List on page 42 For general programming i
74. sssssscesesssseeeeseeees 19 Programming Reference Agilent 81130A SCPI Command Summary cceesseees 26 Default Values Standard Settings ccccccssssseeeeeessseees 34 Programming the Instrument Trigger Modes 0ssse00 38 SCPI Instrument Command List cc eescsssseeeeeeeeeeeeeeees 42 Specifications Declaration Of Conformity ccscccsscccsssccssscccessccessccoesees 96 xi Contents Agilent 81130A Specifications ccccssccsscccsssccsssccensceees 97 General eraran riirii n dete ith cack ease ati E EEan 97 Timing Specifications sn eesssessiresiscisiiiinstiserrirideenrasrsoiistiainesenia te 99 Main Output Level Specifications essssssseessseeesssresssersrssesreseseesess 102 External Input External Clock PLL Reference Input 103 Trigger MOS armoa eri an iah eane tec oaea raa KEA A AKEak LAARA EEEa EUAN chen 105 Output Modes keanan omna E e E E E ia 106 Human Interface s cccccccccsssesssssectccesssnssessentcsnstersonsesesenscncseasensssntedzens 108 MOTOR Ya AEE E E E A E EAEE EEE ET 109 Remote Control sree E E E E Ea E eens 109 Pulse Parameter Definitions eesssesesssesssssesscsssssesssssesssseees 111 xii General Programming Aspects This chapter provides general information on writing GP IB SCPI programs for instruments like the Agilent 81130A Detailed information on programming the Agilent 81130A can be foun
75. st Specified limits Value coupling Description Example Command Long Form Parameter Parameter suffix RST value Specified limits Value coupling 0 1 99 9 depends on Width amp Period Duty Cycle 100 Width x Period Use this command to program the dutycycle of the pulse signal If you want to set an absolute pulse width use SOURce PULSe WIDTh 1 2 If you want the pulse dutycycle to remain constant when the pulse period is varied rather than the absolute pulse width use SOURce PULSe HOLD 1 2 DCYCle PULS DCYC1 25PCT PULS HOLD1 DCYC Set OUTPUT 1 dutycycle to 25 Hold dutycycle constant with varying period PULS DEL 112 SOURce PULSe DELay 1 2 Set amp Query Numeric S with engineering prefixes You can change the default unit using SOURce PULSe DELay 1 2 UNIT 0 0 0 to 3 00 ps Phase _Delay x 360 Period Delay pelay x 100 68 Description Example Command Long Form Parameter RST value Description Example Programming Reference SCPI Instrument Command List Use this command to set read the pulse delay Delay is the time between the start of the pulse period and the start of the leading edge of the pulse If you want the pulse delay to remain constant when the pulse period is varied rather than the phase delay use SOURce PULSe DELay 1 2 HOLD TIM Gl PULS DEL1 500NS Set OUTPUT delay to 500 ns PHAS2 1
76. status group is not used by the instrument therefore this command tree is redundant STATus OPERation EVENt STATus OPERation CONDition STATus OPERation ENABle STATus OPERation NTRansition STATus OPERation PTRansition 81 Programming Reference SCPI Instrument Command List Command Long Form RST value Description Command STATus PRESet STATus PRESet Event Not Applicable This command e Clears all status group event registers e Clears the error queue e Presets the status group enable PTR and NTR registers as follows Status Group Register Preset value OPERation ENABle 0000000000000000 PTR 0111111111111111 NTR 0000000000000000 QUEStionable ENABle 0000000000000000 PTR 0111111111111111 NTR 0000000000000000 STATus QUEStionable This command tree accesses the QUEStionable status group The QUEStionable status group contains warning bits for voltage current time and frequency parameters A warning occurs when the output signal could be out of specification due to the combined specification uncertainties of many parameters although all parameters are set within their individually specified limits If a parameter is set outside its specified limits an error is generated The following commands are used to access the registers within the status group 82 Programming Reference SCPI Instrument Command List STATus QUEStionable EVENt Form Query RST value N
77. tation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance No other warranty is expressed or implied Agilent Technologies specifically disclaims the implied warranties of merchantability and fitness for a particular purpose Exclusive Remedies The remedies supplied are the Buyer s sole and exclusive remedies Agilent Technologies shall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any other legal theory Certification Agilent Technologies certifies that this product met its published specifications at the time of shipment Agilent Technologies further certifies that its calibration measurements are traceable to the United States Institute of Standards and Technology to the extent allowed by the Institute s calibrating facility and to the calibration facilities of other International Standards Organization members Services and Support Any adjustment maintenance or repair of this product must be performed by qualified personnel Contact your customer engineer through your local Agilent Technologies Service Center You can find a list of local service representatives on the Web at http www
78. tes under the same environmental conditions and with the same settings the value of a parameter will lie within a band inside the accuracy window Repeatability defines the width of this band Accuracy Window ie Repeatability Band 117 Specifications Pulse Parameter Definitions 118 Index A Acoustic Noise Emission 98 Added at Output 1 45 Amplitude definition 115 Amplitude current 60 Amplitude voltage 77 Automatic restart the instrument 45 B BURST length 89 92 mode 89 92 number of pulses 92 period 89 92 Burst Mode specification 107 Cc Certification met specifications 5 Channel addition 45 Clear Error Queue 82 Clear Status 82 CLK IN Termination 92 Common Commands 18 Condition Register 20 CONTINUOUS mode 44 46 47 Counted Loop 45 47 48 108 Current Limits 64 D DATA 53 Declaration of Conformity 96 Default Units 70 Definition interchannel delay 113 jitter 115 Linearity 114 pulse delay 113 pulse levels 115 pulse parameters 111 pulse performance 116 pulse period 112 pulse width 112 repeatability 117 settling time 116 stability 115 time reference point 112 transition time 114 trigger delay 112 Delay 69 70 specification 100 Delay 68 69 70 Deskew specification 101 Digital Channel Add 45 101 Dimensions 97 DIR 56 DISPLAY ON OFF 55 Duty Cycle 67 E Enable Register 21 Environmental Conditions 97 Error Queue 84 Errors 108 Event Register 20 EXT INPUT Termi
79. than the dutycycle use SOURce PULSe HOLD 1 2 WIDTh PULS WIDT1 50NS Set OUTPUT 1 pulse width to 50 ns PULS HOLD1 WIDTH Hold pulse width constant with varying period 75 Programming Reference SCPI Instrument Command List Command Long Form Parameter RST value Description Example Command Long Form Parameter RST value Specified limits Description Example ROSC SOUR SOURce ROSCillator SOURce Set amp Query INTernal EXTernal INT Use this command to set read the reference source for the PLL If you select the external reference CLK IN connector you can choose to use a 1 MHz 2 MHz 5 MHz or 10 MHz reference signal using ROSC EXT FREQ Lock the PLL to its internal reference Lock the PLL to a reference signal at the CLK IN connector The exter nal reference signal can be 1 2 5 or 10 MHz INTernal EXTernal Set external PLL reference CLK IN Set expected PLL reference frequency to 10 MHz ROSC SOUR EXT ROSC EXT FREQ 10 MHZ ROSC EXT FREQ SOURce ROSCillator EXTernal FREQuency Set amp Query Numeric 5 MHz 1 MHz 2 MHz 5 MHz or 10 MHz Use this command to set read the expected reference frequency for the PLL at the CLK IN connector The external reference can be a 1 2 5 or 10 MHz signal Note that if you program any value other than the specified values the value will be set to the nearest of the specified values Set e
80. ting in memory 2 MMEM STOR STAT 2 SETTING2 Store memory 2 to file SETTING2 RCL 3 Recall memory 3 as current setting OUTP 112 OUTPut 1 2 NORMal STATe Set amp Query ON OFF 1 O OFF Use this command to switch the normal OUTPUTs on or off Switch on OUTPUT 1 Switch off OUTPUT 2 OUTP1 ON OUTP2 OFF OUTP 112 COMP OUTPut 1 2 COMPlement STATe Set amp Query ON OFF Use this command to switch the complement OUTPUTS on or off OFF 1 0 OUTP1 COMP ON OUTP2 COMP OFF Switch on complement OUTPUT 1 Switch off complement OUTPUT 2 59 Programming Reference SCPI Instrument Command List Command Long Form Parameter Parameter suffix RST value Specified Limits Description Example Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling CORR 112 EDELay SOURce CORRection 1 2 EDELay TIMe Set amp Query Numeric S with engineering prefixes 0 0s 25 0 ns to 25 0 ns Use this command to program the OUTPUT Deskew delay This allows you to deskew the OUTPUTS so that the zero delay points of both OUTPUT signals are the same at the device under test CORR1 EDEL ONS Set OUTPUT 1 DESKEW to 0 CORR2 EDEL 5 18NS Set OUTPUT 2 DESKEW to 5 18 ns CURR 1I2 SOURce CURRent 1 2 LEVel IMMediate AMPLitude Set amp Query Numeric A with engineering prefixes 20 mA
81. tion times are varied This is more convenient for programming and the width display is easy to interpret Pulse Delay Interval between leading edge medians of trigger output pulse and output pulse Trigger Output Signal Fixed Delay Variable Delay The specified and displayed value is that obtained with the fastest leading edge Pulse delay has two components a fixed delay from trigger output to output signal and a variable delay with respect to the trigger output Interchannel Delay Skew Interval between corresponding leading edge medians of the output signals 113 Specifications Pulse Parameter Definitions Transition Time Interval between the 10 and 90 amplitude points on the leading trailing edge 100 90 Amplitude f _ Transition Time 10 Amplitude 0 Linearity Peak deviation of an edge from a straight line through the 10 and 90 amplitude points expressed as percentage of pulse amplitude 100 Amplitude 90 Amplitude 10 Amplitude 0 Amplitude 114 Specifications Pulse Parameter Definitions Jitter Short term instability of one edge relative to a reference edge Usually specified as rms value which is one standard deviation or sigma If distribution is assumed Gaussian six sigma represents 99 74 of the peak peak jitter The reference edge for period jitter is the previous leading edge That for delay jitter is the leadi
82. x 10ms 41 Programming Reference SCPI Instrument Command List Command Long Form Parameter Parameter Suffix Functional Coupling Value Coupling Range Coupling RST value Specified Limits Absolute Limits Example SCPI Instrument Command List The following reference sections list the instrument commands in alphabetical order In addition to a command description the attributes of each command are described under the following headings Not all of these attributes are applicable to all commands The commands are conform to the IEEE 488 2 SCPI standard Shows the short form of the command Shows the long form of the command Most commands can be used in different forms Set The command can be used to program the instrument Query The command can be used to interrogate the instrument Add a to the command if necessary Event The command performs a one off action The type of parameter if any accepted by the command The minimum and maximum value of numeric parameters can be accessed by the option MINimum or MAXimum The suffixes that may follow the parameter Any other commands that are implicitly executed by the command Any other parameter that is also changed by the command Any other parameters whose valid ranges may be changed by the command The value state following a RST command The specified limits of a parameter Some parameters can be programmed beyond their specified limits
83. xternal PLL reference CLK IN Set expected PLL reference frequency to 10 MHz ROSC SOUR EXT ROSC EXT FREQ 10MHZ 76 Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Range coupling Description Example Command Long Form Parameter Parameter suffix RST value Programming Reference SCPI Instrument Command List VOLT 1I2 SOURce VOLTage 1 2 LEVel IMMediate AMPLitude Set amp Query Numeric V with engineering prefixes 1 00 V Agilent 81131A 0 10 Vpp to 3 80 Vpp Agilent 81132A 0 10 Vpp to 2 50 Vpp High Offset IPH ee Low Offset _Amplitude 2 Offset This command programs the amplitude voltage of the OUTPUT signal Note that to set the OUTPUT levels in terms of voltage you first have to execute the SOURce HOLD VOLTage command to enable the SOURce VOLTage subsystem The available voltage range is limited by the specified current limits HOLD VOLT Enable VOLTAGE subsystem VOLT1 2V Set OUTPUT 1 amplitude to 2 V VOLT 1I2 OFFSet SOURce VOLTage 1 2 LEVel IMMediate OFFSet Set amp Query Numeric v with engineering prefixes 0 0 mV 77 Programming Reference SCPI Instrument Command List Specified Limits Value coupling Range coupling Description Example Command Long Form Parameter Parameter suffix RST value Specified Limits Value coupling Agilent 81131A 1 95 V to

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