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53220A/53230A User’s Guide

293

Index

R

radix 25
range 124
range example 124
reading count

query 245
statistical functions 204

reading decimation 229
reading formats 238
reading memory 241

creating data files 251
creating folders 249
creating state files 253
default folder 251
reading threshold 246
transferring readings to output buffer

242

reading the battery level 21
reading the current count 169
reading transfer size 240
reading transfers

memory to output buffer 242
reading units 201
real data formats 238
REAL format
reading length 240

rear panel overview 14
reference oscillator

configuration 66
external frequencies 68
standby power 70
using an external reference 66

reference settings

auto level 29
date and time 28
measurement time out 29, 72
time base 29

reference values

example 199
scaling functions 198

relative threshold level 131
removing folders 261
resetting histograms 220

resetting limits 210
resolution

and gate time 158
digits 158

resolution enhancement 158
RF signal strength 140
rise and fall time measurements 93

S

safety information 3
safety symbols 4
sample count 153
saving states from the front panel 254
scale functions

assigning reading units 201
enabling 196
example 202
gain and offset 199
M/x-b 200
Mx-B 197
NULL 197
PCT 197
PPB 197
PPM 197
reference value 198
SCALe 197

scaling data 195
SCPI formats 73
screen capture 26
screen control 25
securing the instrument

NISPON 31

self-test

increasing the timeout using Interactive

IO 56

sensitivity 129
setting the gate source 156
setting the gate time

totalizing 165

setting up histogram data 215, 226
shipped with counter 15

signal conditioning

settings summary 120

signal conditioning path 120
signal levels 140
signal strength 140
single-period measurements 104
slope

threshold 139

slope example 140
smoothing data

example 195

software installation

Agilent IO libraries 41
IVI drivers 43
system requirements 42

standard deviation 204, 207
standby power 19, 70
start gate

configuration example 181

start gate delay 181
start gate source 177
statistical functions 203

Allan Deviation 206
average peak-to-peak value 205
average value 205
clearing values 207
enabling 203
example 205, 206
maximum value 204
mean 204
minimum value 204
reading count 204
standard deviation 204, 207

stop gate

configuration example 189

stop gate holdoff 183
stop gate source 185
storage and operating environments 17
storing instrument states 256
synchronization with other instruments 172
syntax conventions

SCPI 73

system auto-level range 134, 135

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Содержание 53220A

Страница 1: ...Agilent Technologies Agilent 53220A 53230A 350 MHz Universal Frequency Counter Timer User s Guide...

Страница 2: ...applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of mercha...

Страница 3: ...uct may be impaired if it is used in a manner not speci fied in the operation instructions Before Applying Power Verify that all safety precautions are taken Note the instrument s external markings de...

Страница 4: ...ed and the instrument is properly grounded To ensure safe operation of the instrument do not exceed the Protection Limits defined on the front panel WARNING During battery operation the maxi mum measu...

Страница 5: ...Instrument 15 Materials Included 15 Operating and Storage Environments 17 Electrical Requirements 18 Applying Power 18 Power On LED Status 19 Standby Power 19 Battery Operation 20 Battery Care 22 Usi...

Страница 6: ...ing the GPIB Interface 52 Using Interactive IO 55 Firmware and Driver Updates 56 Disabling Calibration Security 56 SCPI Language Emulation Mode 57 Downloading and Installing the Update Utility 57 Down...

Страница 7: ...riod 105 Totalizing Measurements 107 Gated 107 Continuous 110 Burst Pulse Measurements 112 Carrier Frequency 113 Pulse PRI and PRF 114 Positive and Negative Widths 117 4 53220A 53230A Input Signal Con...

Страница 8: ...Measurements 158 Totalizing 165 Time Interval Measurements 170 Enabling Gate Signals on the Gate In Out BNC 172 Burst Carrier Frequency Measurements 173 Advanced Gate Control Gate Start 177 Advanced G...

Страница 9: ...Block Transfer Byte Order 239 Data Flow 240 Counter File System 247 Creating Folders and Files in Flash Memory and on the USB Drive 249 User Defined Power On States 258 Managing Folders and Files 261...

Страница 10: ...10 53220A 53230A User s Guide Contents...

Страница 11: ...y Functions 23 Display Configuration 23 User Interaction 27 Reference Settings 28 How the User s Guide is Organized 32 Welcome This user s guide contains configuration and operating information for th...

Страница 12: ...Totalize Measure View System Trigger Gate Back Local 3 2 1 Channel Setup 1 Watt Max into 50W 53230A 350 MHz 20 ps Universal Frequency Counter Timer Agilent A B C D E F G H Opt 010 UOCXO Line 100 240V...

Страница 13: ...is displayed on the front panel Display configuration is covered later in this chapter Graphics math and data logging are covered in Chapter 6 C System Keys provide instrument wide configuration whic...

Страница 14: ...OT separate inputs Signals on the center conductor of either panel s channel BNCs are ALSO present on the opposite panel s center conductor Signal path configuration is covered in Chapter 4 B Ext Ref...

Страница 15: ...rd with the 53220A 53230A counter Channel Configuration Main Measurement Display Softkey Navigation Input Settings measurement start edge 10 trigger threshold AC input coupling ac or dc 1MW input Impe...

Страница 16: ...Opt 201 Add parallel Channel 1 and Channel 2 inputs on rear panel Opt 202 Install Option 106 115 on front panel Opt 203 Install Option 106 115 on rear panel Opt 300 Internal Lithium Ion Smart Battery...

Страница 17: ...in this user s guide applies to both the 53220A and 53230A Operating and Storage Environments When operating the 53220A 53230A counter note the following environmental specifications When storing the...

Страница 18: ...verification FPGA test front panel verification measurement board verification channel 3 test if present Option 300 battery test 300 if present Power Supply CAT I do not connect to AC mains 100 to 24...

Страница 19: ...r Option 010 Battery Option 300 itself supplies standby power for the OCXO when the 53220A 53230A is not connected to line voltage Refer to Standby Power to the Reference Oscillator in Chapter 3 for i...

Страница 20: ...n or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Under battery power the instrument chassis may float to the potential of th...

Страница 21: ...red in non volatile memory and does not change when power is cycled or following a reset RST or instrument preset SYSTem PREset or Preset key The battery should remain enabled while the counter is usi...

Страница 22: ...ry enabled 30 90 A fully discharged battery may need to be replaced if it has not been recharged for six to 18 months Operating Time typ 3 hours below 35 C Standby Time typ 24 hours below 35 C OCXO po...

Страница 23: ...ctions enable you to configure features of the instrument indirectly related to measurement selection and configuration These functions include display configuration display control and numeric data f...

Страница 24: ...r of digits is set with the rotary knob or Shift ed numeric keys See Resolution and Gate Time in Chapter 5 for more information when AutoDigits On is set When Graph is selected the data is displayed i...

Страница 25: ...The separator can be one of the following None there is no space between digits e g 10 967342515 MHz Space a space is inserted between every three digits e g 10 967 342 515 MHz On a comma or decimal p...

Страница 26: ...ing any key with the display turned off turns the display back on Screen Capture For documentation of product testing or as a convenience in gathering data the contents of the counter display can be c...

Страница 27: ...to an external USB device See Chapter 7 for information on selecting paths and creating file names User Interaction The features described in this section are related to the user s physical interactio...

Страница 28: ...ror generated from the front panel or over the remote interface Turning off the beeper disables the audio indication Note that the beeper setting does not apply to the tone heard when front panel keys...

Страница 29: ...t The measurement time out is the time allowed for each measurement to complete If a measurement does not complete before the time out expires 9 91E37 not a number is returned and the display indicati...

Страница 30: ...l at which the counter begins the measurement Auto level is the automatic setting of this threshold based on the positive and negative peaks of the input signal The minimum frequency at which auto lev...

Страница 31: ...de With 53100 series compatibility mode selected all programming is through the counter s remote interface LAN USB GPIB The counter display responds according to the remote commands received Pressing...

Страница 32: ...itten for the operator using the instrument from the front panel and for the programmer controlling the counter from a remote LAN USB GPIB interface As such most topics include a front panel key seque...

Страница 33: ...panel and remote usage For general reference the information in this manual is organized as shown in Figure 1 3 Figure 1 3 53220A 53230A User s Guide Organization Signal Conditioning Chapter 4 Trigge...

Страница 34: ...34 53220A 53230A User s Guide 1 Preparation for Use...

Страница 35: ...rface 44 Configuring the USB Interface 49 Configuring the GPIB Interface 52 Using Interactive IO 55 Firmware and Driver Updates 56 Disabling Calibration Security 56 SCPI Language Emulation Mode 57 Dow...

Страница 36: ...und Table 2 1 53220A 53230A Development Environments and Drivers Interface Development Environment IO Driver Recommendations LAN Web enabled instrument interface SCPI Command Interface window Java ena...

Страница 37: ...ewing its Home Page Connect the counter directly to the PC or to the PC through a network switch using a standard LAN cable Obtaining the IP Address Turn on the counter and open the Web browser Allow...

Страница 38: ...rowser Configuration In some network configurations a proxy server may prevent access to the instrument i e page cannot be displayed after the IP address is entered In this situation the proxy must be...

Страница 39: ...the counter display to LXI Web Identify until the indicator is turned off by clicking on Turn Off Front Panel Identification Indicator Programming the Counter Selecting the Remote Control icon second...

Страница 40: ...can be sent by selecting Send Read after the command is entered Commands which do not return data are sent using Send Command NOTE Web interface pages other than the Welcome Page may be password prote...

Страница 41: ...librar ies also include Agilent Connection Expert described and used later in this chapter The IO Libraries are contained on the Agilent Automation Ready CD or may be downloaded from the Electronic Te...

Страница 42: ...recommended 1 GB minimum Available Disk Space 1 5 GB 1 GB recommended for Microsoft NET Framework 2 0 SP2 65 MB for Agilent IO Libraries Suite 1 5 GB 1 GB recommended for Microsoft NET Framework 2 0 S...

Страница 43: ...uring installation if prompted Setup type Typical is applicable for most users Adding Instruments to the PC Interface During installation of the Agilent IO Libraries the IO interfaces LAN USB GPIB det...

Страница 44: ...ommands in the SCPI SYSTem sub system This subsystem plus descriptions of all SCPI commands is located in the Programming Reference section of the 53210A 53220A 53230A Product Reference CD Configuring...

Страница 45: ...ayed in the right column Properties pane To search the network for the counter highlight the LAN interface LAN TCPIP0 and select Add Instrument located on the Connection Expert tool bar After selectin...

Страница 46: ...added to the LAN configuration can also use the Sockets protocol To use this connection select Add Address from the Add Instruments menu Figure 2 4 In this window enter the instrument s host name or...

Страница 47: ...d on the 53220A 53230A when shipped from Agilent This allows the instrument to automatically obtain an address on the network If there is a DHCP server on the network the server will assign the addres...

Страница 48: ...t s serial number The instrument host name is reported by Connection Expert for network serv ers that support Dynamic Domain Name Service DNS For network servers that do not support Dynamic DNS only t...

Страница 49: ...trument rear panel Adding Instruments to the USB Configuration With the 53220A 53230A and PC connected through the USB cable start Agi lent Connection Expert Figure 2 4 if it is not already open The P...

Страница 50: ...ument s USB address is included in the address string as follows USB0 2391 1287 0123456789 0 INSTR To simplify addressing during programming a VISA alias can be assigned and used in place of the compl...

Страница 51: ...fig followed by USB Settings and then USB Off When disabling or enabling the USB interface you must cycle power for the change to take affect When disabled the interface cannot be configured by the Co...

Страница 52: ...GPIB Configuration To add instruments to the GPIB interface highlight GPIB0 and select Add Instrument on the Connection Expert tool bar Figure 2 4 In the New GPIB Instrument window that appears Figur...

Страница 53: ...0A 53230A User s Guide 53 53220A 53230A Software Installation and Interface Configuration 2 Figure 2 7 Selecting the GPIB Address The counter s GPIB address can be read from the front panel as shown b...

Страница 54: ...ure 2 4 From the Connection Expert window highlight the GPIB instrument and then select Change Properties Within the configurable properties window Figure 2 7 change the address to the new address set...

Страница 55: ...PC s IO interfaces and allows you to send any command in the 53220A 53230A SCPI command set to the instrument You can also choose from a menu of IEEE 488 Common commands e g IDN RST TST Interactive IO...

Страница 56: ...n addition to setting the state to OFF The security code is set to AT53220A Agilent 53220A or AT53230A Agilent 53230A when the instrument is shipped from the factory Note however the security code may...

Страница 57: ...alled in the instrument using the Agilent update utility The utility and firmware update can be found at www agilent com find 53220A www agilent com find 53230A Once this page is displayed select the...

Страница 58: ...directory location as you will need to specify the path to the firmware file when you run the update utility Installing the Firmware Update After the update file is downloaded from the web site it can...

Страница 59: ...cify the path to the firmware file Figure 2 10 Once specified the instrument model number will appear in the Applicable Models window along with the revision and instrument descrip tion Select Next Fi...

Страница 60: ...0A will reboot once the update is complete NOTE Following a firmware update Agilent Connection Expert if running may report that the 53220A 53230A configuration has changed This is represented by a ye...

Страница 61: ...ates IVI COM and LabVIEW drivers for the 53220A 53230A when available are provided on the Web at either www agilent com find 53220A www agilent com find 53230A Once this page is displayed select the T...

Страница 62: ...62 53220A 53230A User s Guide 2 53220A 53230A Software Installation and Interface Configuration...

Страница 63: ...Out 74 SCPI Syntax Conventions 75 The MEASure and CONFigure Commands 77 Using MEASure 79 Using CONFigure 79 Frequency and Period Measurements 81 Frequency 81 Frequency Ratio 83 Period 85 Time Stamp 87...

Страница 64: ...uency RATio MEASure FREQuency RATio 53220A 53230A 1 2 3 Period CONFigure PERiod MEASure PERiod 53220A 53230A 1 2 3 SPeriod CONFigure SPERiod MEASure SPERiod 53220A 53230A 1 2 Burst Carrier Frequency C...

Страница 65: ...A 1 2 Positive Pulse Width CONFigure PWIDth MEASure PWIDth 53220A 53230A 1 2 Phase CONFigure PHASe MEASure PHASe 53220A 53230A 1 2 Totalize Continuous CONFigure TOTalize CONTinuous 53220A 53230A 1 2 T...

Страница 66: ...urements to occur The following information applies to the counter s standard temperature com pensated crystal oscillator TCXO and Option 010 Ultra High Stability oven controlled crystal oscillator OC...

Страница 67: ...automatic selection of the reference oscillator source If a 1 5 or 10 MHz signal is present on the counter s Ext Ref In connector source EXTernal is set If a valid signal is not present or is lost th...

Страница 68: ...hipped from the factory or following the SYSTem SECure IMMediate com mand The setting is stored in non volatile memory and is not changed after a reset RST or instrument preset SYSTem PREset or Preset...

Страница 69: ...e AUTO OFF must be set The following example checks for an external reference signal applied to the Ext Ref In connector SENS ROSC SOUR EXT set source also disables automatic source selection SENS ROS...

Страница 70: ...Cillator INTernal POWer STANdby OFF ON SENSe ROSCillator INTernal POWer STANdby query form On enables standby power which maintains the temperature of the OCXO when the front panel power button is swi...

Страница 71: ...ble for making frequency fre quency ratio and average period measurements The measurement mode is set using the command SENSe FREQuency MODE AUTO RECiprocal CONTinuous SENSe FREQuency MODE query form...

Страница 72: ...phs describe continuous gap free mea surements with an example one second gate time Figure 3 1 53230A Continuous Gap Free Measurement Sequence gate open Reading 1 Reading 2 Reading n start 2 3 4 1 sto...

Страница 73: ...ignal frequency during the measurement can impact the counter s observable continuous gap free char acteristic As previously mentioned all readings in the current reading count are based on the number...

Страница 74: ...reason a measurement is unable to complete The measurement time out is set with the command SYSTem TIMeout time MINimum MAXimum INFinity DEFault SYSTem TIMeout MINimum MAXimum DEFault query form time...

Страница 75: ...resolution MINimum MAXimum DEFault channel The programming conventions are as follows Command Keywords and Abbreviated Commands Command keywords e g MEASure FREQuency are separated by a colon Upper ca...

Страница 76: ...ting the CALCulate2 subsystem CALC2 TRAN HIST STAT ON CALC2 TRAN HIST POIN 15 CALC2 TRAN HIST RANG AUTO ON CALC2 TRAN HIST RANGe AUTO COUNt 300 can be sent in a string as CALC2 TRAN HIST STAT ON POIN...

Страница 77: ...or MEASure Executing commands from the CONFigure and MEASure subsystems is equiv alent to setting parameters individually using the commands subsystems shown in Table 3 2 Table 3 2 Counter Configurat...

Страница 78: ...OPe External Gate Source Gate In Out BNC OUTPut STATe Burst Gate Auto On enabled SENSe FREQuency BURSt GATE AUTO Burst Gate Delay 0 0 seconds SENSe FREQuency BURSt GATE DELay Burst Gate Time 1 0 us SE...

Страница 79: ...nd or remain unchanged from previously programmed values Because the measurement is taken immediately changes to the counter config uration are limited to the parameters within the command Using CONFi...

Страница 80: ...E TIME 0 005 SENS FREQ GATE SOUR TIME INIT Using CONFigure The following command CONFigure returns the measurement function configured by the last CONFigure or MEASure command sent to the instrument S...

Страница 81: ...2 Figure 3 2 Standard Frequency Measurement NOTE The SCPI commands listed in these examples are provided as an introduction to how frequency measurements are made Commands may be included even though...

Страница 82: ...hannel 3 Option 106 100 MHz 6 0 GHz default 500 MHz expected channel 3 Option 115 300 MHz 15 GHz default 500 MHz resolution all channels 1 0E 15 expected to 1 0E 5 expected default resolution correspo...

Страница 83: ...requency ratio measurements are MEASure FREQuency RATio expected MINimum MAXimum DEFault resolution MINimum MAXimum DEFault channel_pair CONFigure FREQuency RATio expected MINimum MAXi mum DEFault res...

Страница 84: ...set 6 digits of resolution of ratio measurement RST reset to start from known state MEAS FREQ RAT 1 1 0E 6 1 2 using CONFigure ratio measurement expecting a 1 1 ratio set 9 digits of ratio resolution...

Страница 85: ...m MAXimum DEFault channel CONFigure PERiod expected MINimum MAXimum DEFault resolution MINimum MAXimum DEFault channel expected is the expected input signal period resolution is the desired measuremen...

Страница 86: ...12 digit resolution RST reset to start from known state MEAS PER 100E 9 1E 12 1 using CONFigure measure the period of a 100 ns 10 MHz signal with 12 digit resolution RST reset to start from known stat...

Страница 87: ...on the counter input channels An example of time stamp measurements between the edges of an input waveform is shown in Figure 3 5 Time stamp measurements are available with the 53230A only Figure 3 5...

Страница 88: ...rate is the rate at which time stamp readings are generated rate values are 10 0E3 100E3 800E3 and 1 0E6 The actual rate depends on the frequency of the input signal Following a reset RST or instrume...

Страница 89: ...lues will either be the signal period itself scale factor 1 for input frequencies the time stamp rate or the signal period multiplied by the scale factor For example a 10 MHz input signal and a 1 MHz...

Страница 90: ...in these examples are provided as an introduction to how time interval measurements are made Commands may be included even though they specify default values but which should be considered when modif...

Страница 91: ...t The commands used to make time interval measurements are MEASure TINTerval channel_pair CONFigure TINTerval channel s channel_pair are channels in the form 1 2 2 1 channel s can be a channel pair or...

Страница 92: ...level on ch 1 INP2 LEV AUTO ON enable auto level on ch 2 INP1 LEV1 REL 10 set ch 1 threshold level to 10 INP2 LEV1 REL 10 set ch 2 threshold level to 10 INP1 SLOP POS start meas on ch 1 rising edge IN...

Страница 93: ...ts as set by CONFigure except for those set as shown RST reset to start from known state CONF TINT 1 INP COUP AC set AC coupling INP IMP 50 set input impedance to 50 ohm INP LEV1 1 0 set start thresho...

Страница 94: ...wn in Figure 3 8 Figure 3 8 Rise Time and Fall Time Measurements The commands used to make rise and fall time measurements are MEASure RTIMe lower_ref MINimum MAXimum DEFault upper_ref MINimum MAXimum...

Страница 95: ...numeric value with no suffix or with the suffix PCT e g 30 or 30 PCT To specify rise or fall time levels in absolute voltage within the ranges 5 125V range 5 125V to 5 125V 51 25V range 51 25V to 51...

Страница 96: ...segment from 1 25V to 1 4V RST reset to start from known state CONF FTIM 1 4V 1 25V 1 INP COUP DC set DC coupling INP IMP 50 set input impedance to 50 ohm READ Notes 1 Lower and upper references can b...

Страница 97: ...idths are shown in Figure 3 9 Figure 3 9 Positive and Negative Pulse Width Measurements The commands used to make positive and negative pulse width measurements are MEASure PWIDth reference MINimum MA...

Страница 98: ...positive rising direction defines the negative width To specify a threshold level from 10 to 90 of the peak to peak input volt age use a numeric value with no suffix or with the suffix PCT e g 30 or...

Страница 99: ...m known state CONF NWID 500 MV 1 INP COUP DC set DC coupling INP IMP 50 set input impedance to 50 ohm READ Notes 1 The reference threshold can be specified as a percentage of the peak to peak amplitud...

Страница 100: ...ive duty cycle measurements are the ratio of the positive or negative widths to the period of the signal Figure 3 10 Figure 3 10 Positive and Negative Duty Cycle Measurements The commands used to make...

Страница 101: ...defines the positive duty cycle Similarly the level at which the signal passes through the threshold in the negative falling direc tion and again in the positive rising direction defines the negative...

Страница 102: ...ycle at a 50 0V reference RST reset to start from known state CONF NDUT 50 PCT 1 TRIG SOUR EXT set an external trigger source INIT Notes 1 The reference threshold can be specified as a percentage of t...

Страница 103: ...for information on configuring the input signal path and Chapter 5 for information on Triggering Phase Phase measurements indicate the phase difference or shift between signals on counter channels 1...

Страница 104: ...or a positive or negative value between 180 POSitive returns the measured phase difference as a positive value between 0 and 360 CENTered returns the measured phase difference as a positive or negati...

Страница 105: ...at is CENTered and the signal on channel 2 is delayed for a period equivalent to 90 the measurement will be 90 for the channel pair 1 2 If under the same signal conditions the channel pair were specif...

Страница 106: ...od measurement on channel 1 start measurement when signal reaches 1 5V threshold RST reset to start from known state CONF SPER 1 INP LEV 1 5 set 1 5V threshold level READ Notes 1 For period averaging...

Страница 107: ...pecified period The relationship of the gate to the period input events are totalized is shown in Figure 3 12 NOTE The SCPI commands listed in these examples are provided as an introduction to how tot...

Страница 108: ...Talize TIMed gate_time MINimum MAXimum DEFault channel gate_time specifies the time input events on the counter channel are total ized The range for gate_time is 53220A 100 s to 1000s 10 s resolution...

Страница 109: ...OUR INP2 gate is ext signal on ch 2 SENS GATE STAR SLOP POS start gate on rising edge SENS GATE STOP HOLD SOUR TIME hold off gate close SENS GATE STOP HOLD TIME 1 0 hold off close for 1s SENS TOT GATE...

Страница 110: ...for a specified gate time continuous totalizing continues indefinitely until the measurement is aborted or cleared and restarted from the front panel The command used to make continuous totalizing mea...

Страница 111: ...10 seconds wait 10 seconds SENS TOT DATA query count after 20 seconds ABOR stop measurement FETC retrieve final count Notes 1 Pressing Clear Count on the front panel will not clear or abort continuou...

Страница 112: ...ive off width Figure 3 13 identifies these measurements within a burst signal NOTE The SCPI commands listed in these examples are provided as an introduction to how measurements involving microwave pu...

Страница 113: ...Measurements Carrier Frequency The commands used to measure the carrier frequency of a burst pulse are MEASure FREQuency BURSt channel CONFigure FREQuency BURSt channel channel is optional channel 3 s...

Страница 114: ...t a detector threshold of 6 dB SENS FREQ BURS GATE NARR OFF narrow pulse mode off SENS FREQ BURS GATE AUTO ON automatic gate set up READ Notes 1 See Burst Measurement Detector Threshold in Chapter 4 f...

Страница 115: ...E 15 expected to 1 0E 5 expected default resolution corresponds to a 0 1s gate time channel is counter channel 3 specified as 3 MEASure FREQuency PRF expected MINimum MAXimum DEFault resolution MINimu...

Страница 116: ...dB READ measure an expected 1 kHz pulse repetition frequency with 6 digit mHz resolution RST reset to start from known state MEAS FREQ PRF 1E3 001 3 measure the pulse repetition frequency using CONFi...

Страница 117: ...t channel MEASure NWIDth BURSt channel CONFigure NWIDth BURSt channel channel is counter channel 3 specified as 3 Positive Width and Negative Width Examples measure the positive on width of the burst...

Страница 118: ...URS 3 measure the negative off width using CONFigure set a 12 dB detector threshold RST reset to start from known state CONF NWID BURS 3 INP3 BURS LEV 12 set a detector threshold of 12 dB READ Notes 1...

Страница 119: ...ing Low Pass Filter 127 Threshold Level and Sensitivity 129 Burst Measurement Detector Threshold 136 Noise Rejection Hysteresis 137 Threshold Slope 139 Measuring Input Signal Levels and Signal Strengt...

Страница 120: ...not apply to third channel Option 106 or 115 The counter channels with the exception of frequency ratio and selected time interval measurements are separate and can be configured independently Measure...

Страница 121: ...ction INPut 1 2 PROTection CLEar INPut 1 2 LEVel 1 2 SYSTem ALEVel FREQuency INPut 1 2 LEVel AUTO INPut 1 2 LEVel 1 2 RELative INPut3 BURSt LEVel INPut 1 2 NREJect INPut 1 2 SLOPe 1 2 Selectable 100 k...

Страница 122: ...termination and bridging applications respectively Using Probes If using a 1 1 or 10 1 probe the input impedance of the counter should be set to match the compatibility e g 50 1 M high Z of the probe...

Страница 123: ...ically determine if the protection relay has been opened the command INPut 1 2 PROTection queries the relay state 0 relay closed 1 relay open With the input volt age removed or reduced below the damag...

Страница 124: ...0 0V When a 10 1 probe factor is selected the avail able ranges are 50 0V and 500 0V CONFigure and MEASure do not change the input range setting Following a reset RST or a front panel preset Preset th...

Страница 125: ...the channel input The probe factor is set with the command INPut 1 2 PROBe factor MINimum MAXimum DEFault INPut 1 2 PROBe MINimum MAXimum DEFault query form Probe factor settings are 1 for a 1 1 prob...

Страница 126: ...uency range across the full bandwidth of the instrument 1 mHz 350 MHz CONFigure and MEASure do not change the coupling setting Following a reset RST or front panel preset Preset the coupling is set to...

Страница 127: ...DC component DC coupled will typi cally center around 0V AC coupled in one second Coupling Example period measurement of expected 10 MHz signal maximum resolution use channel 1 CONF PER 0 1E 6 MAX 1 I...

Страница 128: ...N INPut 1 2 FILTer LPASs STATe query form On enables the filter OFF disables the filter Figure 4 3 shows the effects on the instrument s measurable frequency range when the filter is enabled Figure 4...

Страница 129: ...es Figure 4 4 identifies these characteristics and conditions of the input signal The dynamic range of the input signal is indicated on the front panel Figure 4 4 Input Signal Threshold Level and Sens...

Страница 130: ...ion 500V range w 10 1 probe 512 5V 250 mV resolution LEVel LEVel1 sets the absolute threshold for all measurements except rise fall time and single channel time interval For rise fall time measure men...

Страница 131: ...ing Relative Threshold Levels The CONFigure and MEASure commands enable auto leveling and set a 50 threshold level A reset RST or front panel preset Preset also enables auto leveling at a 50 threshold...

Страница 132: ...art event and LEVel2 sets the threshold for the stop event CONFigure and MEASure set the threshold to 50 and enable auto leveling A reset RST or front panel preset Preset also sets the threshold to 50...

Страница 133: ...IT take reading Input Coupling and Threshold Levels Figure 4 5 shows a scale of how relative thresholds apply to the input signal When the signal includes a DC offset the absolute value of a relative...

Страница 134: ...ueried using INPut 1 2 LEVel 1 2 ABSolute or computed as Vmin threshold x Vpp level w DC coupling 0 5 0 30 x 3 1 4V level w AC coupling 1 5 0 30 x 3 0 6V System Auto Level Range Auto leveling is avail...

Страница 135: ...aking two channel measurements The default setting is 50 Hz The value is stored in non volatile memory and does not change when power is cycled or following a reset RST or a front panel preset Preset...

Страница 136: ...ents are relative to the pulse width The on por tion of the pulse width is established by a 6 dB and 12 dB detector threshold Figure 4 6 is an example of the thresholds relative to the peak amplitude...

Страница 137: ...B levels are 6 and 12 and are nominal i e non specified values CONFigure and MEASure do not change the detector threshold setting Fol lowing a reset RST or front panel preset Preset the threshold is s...

Страница 138: ...MEASure do not change the noise rejection setting Following a reset RST or instrument preset Preset noise rejection is disabled off Noise Rejection from Bandwidth Limiting For input signals up to 100...

Страница 139: ...negative falling edge Figure 4 4 NEGative the trigger point occurs on the negative edge with the reset point occurring on the positive edge The slope setting does not apply to pulse width duty cycle...

Страница 140: ...nd Signal Strength Minimum maximum and peak to peak levels of the input signal are indicated on the bottom of the counter s main measurement display area and an exam ple is included in Figure 4 4 Thes...

Страница 141: ...ngths returned by the command indicate the following Color Strength Description None Yellow Green Red 0 1 2 3 4 Signal strength too low May not be able to make measurement For continuous wave CW measu...

Страница 142: ...142 53220A 53230A User s Guide 4 53220A 53230A Input Signal Conditioning...

Страница 143: ...ing 165 Time Interval Measurements 170 Enabling Gate Signals on the Gate In Out BNC 172 Burst Carrier Frequency Measurements 173 Advanced Gate Control Gate Start 177 Advanced Gate Control Gate Stop Ho...

Страница 144: ...rce Gate start delay events Gate start delay time Gate stop source Gate stop slope Gate stop holdoff source Gate stop holdoff events Gate stop holdoff time External External Negative Immediate 1 0 0s...

Страница 145: ...ptions and examples of each step in the cycle Input events received are ignored Gate enabled Auto Gate Extension INIT IMMediate Trigger Trigger Delay Time Gate Start Start Gate Delay Time Events Gate...

Страница 146: ...ngs SAMPle COUNt Yes No ABORt RST Yes No INITiate IMMediate READ MEASure TRIGger COUNt SAMPle COUNt Sample Count Trigger Count Trigger Delay Trigger Slope Trigger Source TRIGger SOURce TRIGger SLOPe T...

Страница 147: ...gate extension measurement completes on next edge of input signal after gate is closed measurement complete frequency and period measurements internal TIME SENSe FREQuency GATE POLarity SENSe TOTaliz...

Страница 148: ...is in the idle state Figure 5 3 This includes configuration of the system trigger As shown the counter is placed in the idle state by either of the following the commands ABORt aborts a measurement i...

Страница 149: ...Trigger Sequence System Trigger Source return to idle state w hen readings TRIGger COUN t x SAMPle COUN t ABORt R ST TRIGger COUNt SAM Ple C OU Nt Sam ple Count Trigger Count Trigger Delay Trigger Slo...

Страница 150: ...te sets a continuous trigger signal By default CON Figure sets the trigger source to IMMEDiate trigger source EXTernal sets the trigger source to an external trigger applied to the rear panel Trig In...

Страница 151: ...r parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS trigger slope positive System Trigger Delay The delay between receipt of the internal or external system trigger si...

Страница 152: ...eceive before returning to the idle state from the wait for trigger state is set with the command TRIGger COUNt count MINimum MAXImum DEFault TRIGger COUNt MINimum MAXimum DEFault query form The trigg...

Страница 153: ...he trig ger count and the sample count is greater than 1 000 000 readings data must be read from reading memory fast enough to prevent memory overflow If memory does overflow new readings will overwri...

Страница 154: ...NOTE The trigger count and sample count are ignored when making continuous totalize measurements The trigger count is also ignored when making continuous gap free frequency or period measurements Only...

Страница 155: ...SAMP COUN 100 take 100 readings per system trigger INIT initiate the counter wait for trigger state FETc retrieve measurements from reading memory READ equivalent to executing INITiate IMMediate direc...

Страница 156: ...lated parameters that must be considered A gate source is required for all frequency totalizing and time interval measurements Although selection of the gate source is shown at the beginning of the cy...

Страница 157: ...ion with external events or requiring more precise gate control an external gate or advanced gating is used Exter Gate Source IMMediate ADVanced SENSe FREQuency GATE SOURce SENSe TOTalize GATE SOURce...

Страница 158: ...EQuency GATE SOURce query form gate source TIME is used to achieve a desired resolution in number of digits It uses an internal gate signal and is the default gate source It enables the gate to remain...

Страница 159: ...Resolution Digits Auto Continuous Resolution Digits Reciprocal Calculating Digits and Gate Time Reciprocal Mode 1 usec 4 7 4 7 Digits as a function of gate time Digits Log10 gate time Tss Digits as a...

Страница 160: ...er programming However setting changing the gate time separate from the CONFigure MEASure command allows you to change only the gate time while preserving other configuration settings Querying the Gat...

Страница 161: ...ct the corresponding gate time SENS FREQ GATE TIME 100e 3 set gate time 100 ms SENS FREQ GATE SOUR TIME set gate source As another example assume a measurement requiring 6 digit resolution of a 5 ns 2...

Страница 162: ...unter s rear panel Gate In Out BNC and INPut 1 INPut2 represented by softkeys Chan 1 and Chan 2 are the counter s channel 1 and channel 2 inputs External Gate Signal Polarity When using any external g...

Страница 163: ...nput and stops the measurement on the next positive edge CONFigure and MEASure do not change the polarity setting Following a reset RST or instrument preset SYSTem PRESet or Preset key the negative ed...

Страница 164: ...ditioning When using external sources INPut 1 and INPut2 the channel selected as the gate source cannot be the same channel on which the measured signal is applied That is the gate source channel cann...

Страница 165: ...igure TOTalize TIMed The command used to set or change the gate source is SENSe TOTalize GATE SOURce TIME EXTernal INPut 1 INPut2 ADVanced SENSe TOTalize GATE SOURce query form gate source TIME enable...

Страница 166: ...SOUR TIME set gate source External Gate Sources Gate sources EXTernal INPut 1 and INPut2 are external sources EXTernal is the counter s rear panel Gate In Out BNC and INPut 1 INPut2 represented by sof...

Страница 167: ...on the next negative edge NEGa tive starts totalizing on a negative edge on the Gate In Out BNC or channel 1 channel 2 input and stops totalizing on the next positive edge CONFigure and MEASure do not...

Страница 168: ...polarity of the signal crossing the threshold closes the gate When using sources INPut 1 and INPut2 the channel selected as the gate source cannot be the same channel on which input events are totali...

Страница 169: ...events that are totalized to positive Refer to Chapter 4 53220A 53230A Input Signal Conditioning for information on the commands in the INPut subsystem used to change these parameters Reading the Cur...

Страница 170: ...nds on the next stop event defined The CONFigure commands set the time interval gate source to IMMediate gate source EXTernal is the counter s rear panel Gate In Out BNC Using an external gate the mea...

Страница 171: ...edge the measurement begins on the first start event after the gate edge Following a reset RST or instrument preset SYSTem PRESet or Preset key the negative edge polarity is selected Gate Source ADVa...

Страница 172: ...rom sources Time internal IMMediate internal and INPut 1 INPut2 Chan 1 and Chan 2 softkeys can be routed to the rear panel Gate In Out con nector and assigned a polarity using the commands OUTPut STAT...

Страница 173: ...ut and Pulse Microwave Measurement Option 150 enables measurement of the burst carrier frequency A representation of the carrier frequency is shown in Figure 5 6 Figure 5 6 Burst Carrier Frequency 6 d...

Страница 174: ...F ON SENSe FREQuency BURSt GATE NARRow query form ON enables narrow pulse mode for on durations less than 10 s Automatic gate set up SENSe FREQuency BURSt GATE AUTO ON is always used when narrow mode...

Страница 175: ...form when ON the gate time and delay are automatically configured based on the characteristics of the pulse signal Following a reset RST or instrument pre set SYSTem PRESet or Preset key automatic ga...

Страница 176: ...key the gate time is set to 1 s delay sets the gate delay at the start of the measurement The delay starts when the input level reaches the detector threshold 6 dB 12 dB set by the INPut3 BURSt LEVel...

Страница 177: ...mode off SENS FREQ BURS GATE AUTO OFF manually set delay time SENS FREQ BURS GATE DEL 5E 6 set gate delay SENS FREQ BURS GATE TIME 10E 6 set gate time READ Advanced Gate Control Gate Start Setting th...

Страница 178: ...SOURce SENSe GATE STARt SLOPe SENSe GATE STARt DELay SOURce SENSe GATE STARt DELay EVENts input channel SENSe GATE STARt DELay TIME IMMediate Gate Start open internal not available with time interval...

Страница 179: ...form gate source BNC is the counter s rear panel Gate In Out BNC gate source INPut 1 and INPut2 represented by softkeys Chan 1 and Chan 2 are the counter s channel 1 and channel 2 inputs These sources...

Страница 180: ...input The gate is stopped closed based on the corresponding stop gate settings Following a reset RST or instrument preset SYSTem PRESet or Preset key a negative slope is selected External Gate Start S...

Страница 181: ...g multiple parameters configure the counter for an externally gated frequency measurement The gate start signal is applied to the rear panel Gate In BNC CONF FREQ 2 frequency measurement on channel 2...

Страница 182: ...terval measurements delay events are counted on the start channel For frequency ratio measurements delay events are counted on the denominator channel The number of events is specified with the comman...

Страница 183: ...when specifying a hold off for a number of input events the hold off begins on the first event after the gate opens Figure 5 1 from Gate Start open not available with time interval Gate Stop Source S...

Страница 184: ...ge the hold off source setting Following a reset RST or instrument preset SYSTem PRESet or Preset key hold off source IMMediate is selected disabled hold off source EVENts holds off the gate stop clos...

Страница 185: ...me is 100 usec for the 53220A or 1 usec for the 53230A INFinity or 9 9E 37 is accepted only for the TOTalize measurement func tion When selected the gate remains open until an ABORt or RST command or...

Страница 186: ...XTernal SOURce query form gate source EXTernal is the counter s rear panel Gate In Out BNC gate source INPut 1 and INPut2 not available with time interval measure ments are the counter s channel 1 and...

Страница 187: ...STOP SLOPe POSitive NEGative SENSe GATE STOP SLOPe query form POSitive stops closes the gate on a positive edge on the Gate In Out BNC or channel 1 channel 2 input NEGative stops the measurement on a...

Страница 188: ...olts MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum DEFault query form The specified edge slope of the gate signal crossing the threshold stops the gate More information on the I...

Страница 189: ...SOUR EXT select rear panel Gate In BNC SENS GATE STAR SLOP POS set a pos start gate slope OUTP STAT OFF disable BNC as an output configure hold off and stop gate SENS GATE STOP HOLD SOUR TIME hold off...

Страница 190: ...190 53220A 53230A User s Guide 5 Triggering and Gating...

Страница 191: ...ams 211 Trend Charts 224 Data Logging 230 Graphics Functions and Reading Memory 236 The Agilent 53220A 53230A counter features math operations that allow you to scale readings test limits and statisti...

Страница 192: ...adings processed for a given trigger cycle Chapter 5 Trig gering and Gating is determined by the trigger count TRIGger COUNt and the number of readings per trigger SAMPle COUNt The default trigger cou...

Страница 193: ...is sent directly to the output buffer and or read ing memory with no math operations performed regardless of any math operations enabled reading memory CALCulate1 AVERage statistics CALCulate1 SCALe s...

Страница 194: ...random noise a moving average boxcar filter can be inserted into the data path Figure 6 1 To enable the filter and specify the number of read ings subset to average the following commands are used CAL...

Страница 195: ...reading is the average of all readings up to the specified response 10 50 100 At that point the reading is the moving aver age of the last 10 50 or 100 measurements Equal weighting is applied to all...

Страница 196: ...ll 53220A 53230A scaling functions are enabled with the command CALCulate 1 SCALe STATe OFF ON CALCulate 1 SCALe STATe query form ON enables scaling OFF disables scaling Following a reset RST or instr...

Страница 197: ...a percent change operation The result is the difference between the measurement and the reference value expressed in percentage PPM performs a parts per million change operation The result is the diff...

Страница 198: ...can be obtained auto matically or specified directly with the commands CALCulate 1 SCALe REFerence AUTO OFF ON CALCulate 1 SCALe REFerence AUTO query form CALCulate 1 SCALe REFerence reference MINimu...

Страница 199: ...f 50000 000 CONF FREQ 50E3 1 SAMP COUN 100 take 100 readings CALC STAT ON enable CALCulate1 subsystem CALC SCAL STAT ON enable scaling CALC SCAL FUNC PCT select scale function PCT CALC SCAL REF 50 000...

Страница 200: ...eset RST or instrument preset SYSTem PRESet Inverting the Reading 1 x Each reading as it is taken can be inverted prior to its use in the Mx B equation which thus becomes M x B Inversion is enabled wi...

Страница 201: ...ction The user string replaces the instrument assigned measurement units Hz pct ppm The unit prefix m k M remains The units string is displayed on the counter and defined using the commands CALCulate...

Страница 202: ...The following example is a typical sequence of scaling commands from the SCPI CALCulate 1 subsystem Scale 500 readings M x B and assign reading units CONF FREQ 1 frequency measurement SAMP COUN 500 5...

Страница 203: ...mmands used to generate statistical data are covered in this section As mentioned multiple operations can be enabled at the same time Figure 6 3 is an example with statistics and limit checking enable...

Страница 204: ...the Statistics function are enabled The number of readings on which a given set of statistics are based is shown as the Count value Figure 6 3 The count can also be queried with the command CALCulate...

Страница 205: ...LCulate1 subsystem CALC AVER STAT ON enable statistics INIT initiated the measurements WAI wait for all rdgs to complete CALC AVER ALL compute statistics Typical data returned for this command is mean...

Страница 206: ...rigger SENS FREQ GATE TIME 10e 3 10 ms gate time CALC STAT ON enable CALCulate1 subsystem CALC AVER STAT ON enable statistics INIT initiate the measurements WAI wait for all rdgs to complete CALC AVER...

Страница 207: ...an deviation Standard Deviation Standard deviation is available with both counters using the command CALCulate 1 AVERage SDEViation The CALCulate1 subsystem and statistics must also be enabled before...

Страница 208: ...d upper limit Limits that are exceeded are reported in the counter s Questionable Data reg ister bits 11 and 12 Register definitions and are contained in Chapter 8 When enabled limit checking appears...

Страница 209: ...e MINimum MAXimum DEFault CALCulate 1 LIMit LOWer DATA MINimum MAXimum DEFault query form CALCulate 1 LIMit UPPer DATA value MINimum MAXimum DEFault CALCulate 1 LIMit UPPer DATA MINimum MAXimum DEFaul...

Страница 210: ...r see Clearing Limit Conditions Example Limit Checking The following is an example of enabling and using limit checking CONF FREQ 1 configure measurement SAMP COUN 500 check limit on 500 rdgs CALC STA...

Страница 211: ...iator and clear only the limit sensing bits 11 12 in the Condition register without clearing reading memory the following command is used CALCulate 1 LIMit CLEar IMMediate Histograms The distribution...

Страница 212: ...MODE query form The Graph key followed by the Histogram softkey enables and automatically starts histograms from the front panel Histograms can also be turned off from the softkey menu Remotely a rese...

Страница 213: ...bin s percentage of the total reading count Max Rdgs LR Bin out of range Rdgs UR Bin out of range Mkr 1 maximum value within bin at marker location Mkr 2 maximum value within bin at marker location S...

Страница 214: ...computation OFF disables histogram computation Following a reset RST instrument preset SYSTem PRESet or front panel Preset histograms are disabled CALCulate2 TRANsform HISTogram STATe ON CALCulate2 TR...

Страница 215: ...d on number of bins points a lower range and an upper range Number of Bins The number of bins is specified with the command CALCulate2 TRANsform HISTogram POINts value MINimum MAXimum DEFault CALCulat...

Страница 216: ...ng the Outer Bins softkey and the bin indices Figure 6 6 account for the bins whether they are displayed or not Bin Representation The softkey corresponds to the bin with the largest number of entries...

Страница 217: ...When setting the ranges both a lower range and an upper range must be spec ified Any of the following steps will prevent a settings conflict error e g lower range greater than upper range due to the...

Страница 218: ...Automatic Range Setting Alternately lower and upper range values can be set automatically based on a minimum value and maximum value obtained from the first n number of readings taken Automatic range...

Страница 219: ...ng example creates a 15 bin histogram of 3 000 counter measure ments The lower and upper ranges are automatically determined from the first 300 readings taken CONF FREQ 50E3 1 configure frequency meas...

Страница 220: ...ny part of the histogram number of bins lower or upper range a new measurement cycle INITiate IMMediate READ MEASure sending a new SCPI command or changing a current SCPI parameter an instrument reset...

Страница 221: ...ne measurement per line ASCII format Selecting Save Readings opens the Export action window from which a path and file name can be selected or created The number of readings exported is the total numb...

Страница 222: ...m is adjusted the X Min and X Max indices Figure 6 6 are changed to show the current bin range Pan scans the histogram left or right once a zoom percentage has been set By moving the Pan window region...

Страница 223: ...the upper range value An example data string for a 15 bin histogram based on 3 000 readings of a 50 kHz input signal is 4 998912590059145E 004 5 001118414176608E 004 3000 0 4 8 27 71 221 422 612 695 5...

Страница 224: ...an Y Max Y Min Function Channel Current reading count memory Maximum and minimum scale boundaries and reading units Boundaries can be auto scaled or set manually Auto scaled boundaries keep all readin...

Страница 225: ...nly trend chart parameter that can be set programmatically i e using SCPI commands All other trend chart parame ters are set using the front panel Pressing the Graph key followed by the Trend Chart so...

Страница 226: ...scaled on boundaries keep all readings within the trend window Manually set boundaries off can result in readings outside the window Manual boundaries are set using the front panel knob or Shift ed nu...

Страница 227: ...or to an external USB memory device as comma separated values CSV in one measurement per line ASCII format Selecting Save Readings opens the Export action window from which a path and file name can be...

Страница 228: ...dings displayed by increasing the resolu tion at the center region of the trend chart window Each time the zoom is adjusted the reading indices Figure 6 8 are changed to show the current reading range...

Страница 229: ...is the reading count 100 Figure 6 10 is a trend chart of 100 000 readings in which the readings have been decimated Figure 6 10 Trend Chart Display Format with Decimation Max maximum reading values wi...

Страница 230: ...terest The reading number corresponding to the marker position is the first reading in the group This may not be the maximum or minimum value within the group 2 Select Pan and using the Shift ed numer...

Страница 231: ...with the data logger application Figure 6 11 Starting the Counter Data Logger NOTE Logged readings ARE NOT saved to internal flash memory or external USB mem ory until the logging duration is complet...

Страница 232: ...n external USB memory are comma separated values CSV in one measurement per line ASCII format A default path and file name Internal DataLog is used if one is not specified The drive Internal or Extern...

Страница 233: ...ration is reached In terms of Readings data logging continues until the specified number of read ings are complete The reading count is set using the rotary knob and arrow keys or using the Shift ed n...

Страница 234: ...id path file exists A default path and file name of Internal DataLog is used when the data logger application is started Select Yes to overwrite the file and begin Viewing Readings A trend chart is po...

Страница 235: ...n be used review the data Note that pressing the Graph key followed by the Trend Chart softkey does not retain the data in the display If greater than 100 readings are logged the readings are decimate...

Страница 236: ...ord record Reset Histogram clears current histogram record does not clear reading memory does not abort readings clears count and new histogram re starts on next reading after reset record Clear Readi...

Страница 237: ...ter File System 247 Creating Folders and Files in Flash Memory and on the USB Drive 249 User Defined Power On States 258 Managing Folders and Files 261 The Agilent 53220A 53230A counters allow you to...

Страница 238: ...62393720E 006 15 digits REAL definite length or indefinite length arbitrary block format 64 bits Format ASCII are ASCII characters Each reading is comma separated The instrument always returns 15 sign...

Страница 239: ...buffer the readings are con verted to REAL format Setting the Block Transfer Byte Order Indefinite length and definite length REAL binary data transfers Table 7 1 associated with the READ FETCh R and...

Страница 240: ...external USB memory The commands which determine data flow are listed in Table 7 2 and are described in the following paragraphs output buffer Agilent 53220A 53230A Counter LAN GPIB USB MMEMory STORe...

Страница 241: ...eading memory is cleared after a function change during execution of the READ INITiate IMMediate or MEASure command after cycling power or following an instrument reset RST or preset SYSTem PRESet Com...

Страница 242: ...e PC creating room in the buffer No readings are lost Transferring Readings from Memory to the Output Buffer The following commands transfer readings from volatile reading memory to the buffer READ is...

Страница 243: ...d in the string FETCh Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG COUN 1 set trigger count SAMP COUN 10 take 10 readings INIT IMM initiat...

Страница 244: ...buffer and erases the readings in reading memory Unlike FETCh DATA REMove can be used to transfer readings before the total reading count is reached TRIGger COUNt x SAMPle COUNt to prevent a memory o...

Страница 245: ...mand can be sent before the total reading count TRIGger COUNt x SAMPle COUNt is reached DATA LAST Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter...

Страница 246: ...from memory to the output buffer once a given number of measurements have occurred Once the threshold is reached the number of readings in memory must drop below the threshold level in order to detec...

Страница 247: ...l STAT OPER COND serial poll condition reg sleep 100 wait 100 ms while spoll 4096 repeat until threshold is reached R 10E3 retrieve readings from memory 10k at a time Counter File System Measurements...

Страница 248: ...current folder for MMEMory Subsystem USB Storage Device Agilent 53220A 53230A Counter MMEMory STORe DATA RDG_STORE file creates data csv dat files MMEMory STORe STATe file creates state sta files fil...

Страница 249: ...uide 249 Formats and Data Flow 7 Creating Folders and Files in Flash Memory and on the USB Drive Folders and files are created in instrument memory and on a USB drive as described in the following sec...

Страница 250: ...r Name from the Front Panel With the Create new folder window displayed as shown on the previous page enter a folder name or any file name as follows 1 Press the Browse soft key and use the front pane...

Страница 251: ...and data1 is create folder dut_1 and select it as the current folder create sub folder data1 MMEM MDIR INT dut_1 MMEM CDIR INT dut_1 MMEM MDIR data1 When specifying a folder name the current folder is...

Страница 252: ...ters The format of the transferred readings is specified by the file_name exten sion If csv is specified the data is stored as comma separated values CSV in one measurement per line ASCII format If da...

Страница 253: ...sh memory or on a USB memory device and recalled later to restore a specific configuration Figure 7 2 The commands used to store and load counter states are MMEMory STORe STATe file MMEMory LOAD STATe...

Страница 254: ...urrent folder and a state file is stored and recalled from that folder MMEM CDIR INT SETUP_1 specify as current folder configure instrument programmatically or from front panel MMEM STOR STAT test1 st...

Страница 255: ...tension is added to the file name 6 States state files are recalled by pressing the RECALL STATE soft key highlighting the file name and pressing Select The state is recalled immediately Storing User...

Страница 256: ...h instru ments User preferences cannot be stored or loaded retrieved using the front panel Using SAV and RCL Additional commands that can be used to save and recall instrument states are the IEEE 488...

Страница 257: ...le of the command is RCL 1 recall the configuration from state location 1 When recalling a state using RCL only the location number is specified When recalling a numbered state location from the front...

Страница 258: ...ollowing commands save state in instrument state locations 0 4 SAV 0 1 2 3 4 or store state in state file sta internal or USB MMEMory STORe STATe file enable automatic recall at power on MEMory STATe...

Страница 259: ...recalled and MMEM MDIR INT SETUP_A create folder in INT memory configure counter store state in file MMEM STOR STAT INT SETUP_A test_A sta MEM STAT REC AUTO ON enable state recall at power on MEM STAT...

Страница 260: ...stem Select the desired state to be set at power on by selecting the desired folder and file name Remember that instrument state locations 0 4 are identified by file name e g STATE_3 sta For states sa...

Страница 261: ...folder MMEMory CDIRectory cannot be deleted From the front panel un empty folders can be deleted as prompted as can the SCPI designated current folder Deleting a Folder Example The following example d...

Страница 262: ...extension For example delete data file data1 csv in USB folder dut_1 MMEM DEL USB dut_1 data1 csv State files saved in state locations 0 4 can also be deleted with the com mands MEMory STATe DELete 0...

Страница 263: ...ss Browse again to view and select the contents within a folder 3 When folder or file appears in within the Path or File window press Perform Delete Deleting State Files Additionally state files can b...

Страница 264: ...e1 file2 copies or moves source file1 to destination file2 The file format is drive path file_name drive is either INT internal flash memory or USB external memory device If the file copied or moved i...

Страница 265: ...rename file from state1 sta to state2 sta MMEM MOVE INT dut_1 state1 sta INT dut_1 state2 sta Copying Files and Folders from the Front Panel With file action Copy selected as shown on the previous pa...

Страница 266: ...t directory are returned The format of the data returned is total memory used total memory free file listing file listing with quotes included is further separated into file name file type file size M...

Страница 267: ...s 8 Instrument Status Agilent 53220A 53230A Status System 269 Questionable Data Register Group 269 Standard Operation Register Group 270 Standard Event Register 272 Status Byte Register 273 This chapt...

Страница 268: ...268 53220A 53230A User s Guide 8 Instrument Status Figure 8 1 The 53220A 53230A Status System...

Страница 269: ...counter input voltage overload time interval frequency phase totalize measurement hardware time out calibration data time base error lower limit exceeded upper limit exceeded reading memory overflow C...

Страница 270: ...re enabled with the command STATus QUEStionable ENABle enable STATus QUEStionable ENABle query form enable decimal value corresponding to the binary weighted sum of the bits in the register For exampl...

Страница 271: ...vent Register is read with the command STATus OPERation EVENt Unlike the Condition Register the bits in the Event Register remain set following the state that occurred The bits are cleared by reading...

Страница 272: ...clear the bits The bits are cleared by sending CLS Enabling the Standard Event Register The Standard Event Enable register specifies which bits in the Standard Event Status register can generate a su...

Страница 273: ...e register The difference between the commands is that STB does not clear bit 6 RQS The serial poll SPOLL does clear bit 6 All bits in the Status Byte register except bit 4 are cleared with the comman...

Страница 274: ...274 53220A 53230A User s Guide 8 Instrument Status...

Страница 275: ...20A 53230A 350 MHz Universal Counter Timer User s Guide Agilent Technologies Appendix A 53220A 53230A Error Messages Appendix A contains a description of the error messages associated with the 53220A...

Страница 276: ...re received than expected for the command header 109 Missing parameter Command requires a parameter or parameters 110 Command header error An error was detected in the command header but more specific...

Страница 277: ...er error was detected in the command header or in a parameter but more specific infor mation is not available 141 Invalid character data Either an invalid character was received or the character is no...

Страница 278: ...ppended to the Settings conflict message describes the conflict and how it was resolved 222 Data out of range The parameter value received was outside the range for the given command 223 Too much data...

Страница 279: ...or not a folder name The folder name specified in the memory opera tion is the name of an existing file 257 File name error path is a folder name The file name specified in the memory operation is the...

Страница 280: ...verify that the instrument has the latest firmware revision installed Firm ware updates can be located beginning at the Technical Support tab at www agilent com find 53220A or www agilent com find 532...

Страница 281: ...as I O settings the reference oscillator setting measurement time out setting have been lost due to a firmware update 330 Self test failed See the appended message for more information 350 Error queue...

Страница 282: ...emoving or reducing the signal below the damage level and pressing the flashing chan nel key or sending INPut PROTection CLEar resets the protection relay 302 Cannot reset input protec tion high volta...

Страница 283: ...power must be 13 dBm 317 Channel 3 power changed during measurement The measurement could not be completed due to a change too low or too high in input signal power 318 Channel 3 input is not a pulsed...

Страница 284: ...01 License file corrupt or empty The lic file specified for installation contains cor rupted data or is empty Recopy the Option 150 license file to the USB drive and repeat the instal lation process 6...

Страница 285: ...error calibration memory is secured A calibration cannot be performed when calibra tion memory is secured See To Unlock The Counter For Calibration and To Lock the Counter in Chapter 2 of the service...

Страница 286: ...lete within the 1 2 seconds allowed Per form a self test to verify operation of the Channel 3 board and re check the parameters of the input signal 720 Auto calibration failed input signal detected No...

Страница 287: ...FPGA revision is less than expected 907 Self Test failed PIC communication failure 908 Self Test failed battery test failed These self tests perform a communication test to detect the presence of the...

Страница 288: ...288 53220A 53230A User s Guide A 53220A 53230A Error Messages...

Страница 289: ...limiting 127 noise rejection 138 battery level 21 battery operation 20 battery in use 21 enabling and disabling the battery 21 reading the battery level 21 beeper 27 block data transfers 239 byte ord...

Страница 290: ...ents 84 memory threshold 246 period measurements 86 phase measurements 104 pulse width measurements 98 R 243 READ 242 rise and fall time measurements 95 setting the auto level frequency 135 single per...

Страница 291: ...esetting 220 setting minimum and maximum bin ranges 217 setting up 215 226 viewing data 225 host name and IP address obtaining 38 host names and IP addresses 47 hysteresis 137 time interval errors 138...

Страница 292: ...stamp 86 totalizing continuous 109 totalizing timed 106 measuring low frequency signals low frequency signals 132 memory internal flash 247 moving average filter 194 moving files 264 Mx B 197 199 N NI...

Страница 293: ...assigning reading units 201 enabling 196 example 202 gain and offset 199 M x b 200 Mx B 197 NULL 197 PCT 197 PPB 197 PPM 197 reference value 198 SCALe 197 scaling data 195 SCPI formats 73 screen captu...

Страница 294: ...imed measurements 106 transients 18 trend charts reading decimation 229 trigger cycle 145 triggering idle state 148 sample count 153 settings summary 144 system trigger 148 system trigger count 152 sy...

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