Page 1 GS820 Multi Channel Source Measure Unit IM 765601-01E 6th Edition...
Page 2: Product Registration
Product Registration Thank you for purchasing YOKOGAWA products. YOKOGAWA provides registered users with a variety of information and services. Please allow us to serve you best by completing the product registration form accessible from our website. http://tmi.yokogawa.com/ PIM 103-04E...
Page 3: List Of Manuals
Thank you for purchasing the GS820 Multi Channel Source Measure Unit. This user’s manual contains useful information about the instrument’s functions and operating procedures and lists the handling precautions of the GS820. To ensure correct use, please read this manual thoroughly before beginning operation. Keep this manual in a safe place for quick reference in the event a question arises.
Page 4: Checking The Contents Of The Package
GS820 Check that the model name and suffix code given on the name plate on the side panel of the instrument match those on your order.
Page 5 Checking the Contents of the Package Standard Accessories The standard accessories below are supplied with the instrument. Name Model/Part No. Qty. Notes UL/CSA Standard Power Cord Power cord A1006WD A1009WD VDE Standard Power Cord BS Standard Power Cord A1054WD A1024WD AS Standard Power Cord GB Standard Power Cord A1064WD NBR Standard Power Cord A1088WD Rubber feet...
Page 6 — — cable WARNING • Use the accessories specified in this manual. Moreover, use the accessories of this product only with Yokogawa products that specify them as accessories. • Use the accessories of this product within the rated range of each accessory. When using several accessories together, use them within the specification range of the accessory with the lowest rating. • Due to the structure of the product, it is possible to touch the metal parts of the fork terminal adapter 758921. Be careful as this constitutes an electric shock hazard.
Page 7 Checking the Contents of the Package ATTENTION Utiliser les câbles BNC 366924 et 366925 pour les bornes E/S BNC. IM 765601-01E...
Page 8: Safety Precautions
The general safety precautions described herein must be observed during all phases of operation. If the instrument is used in a manner not specified in this manual, the protection provided by the instrument may be impaired. YOKOGAWA assumes no liability for the customer’s failure to comply with these requirements.
Page 9 WARNING Use the Instrument Only for Its Intended Purpose The GS820 is a signal source and measurement instrument that can output and measure voltage and current. Do not use this instrument for anything other than as a signal source and measurement instrument.
Page 10 Safety Precautions Measurement Category The measurement category of the GS820 signal input terminals is Other (O). Do not use it to measure the main power supply or for Measurement Categories II, III, and IV. Installation Location • T his instrument is designed to be used indoors. Do not install or use it outdoors. • I nstall the instrument so that you can immediately remove the power cord if an abnormal or dangerous condition occurs. Using in a Floating Condition • Depending on the connected external device, dangerous voltage may appear...
Page 11 Safety Precautions French AVERTISSEMENT Utiliser l’instrument aux seules fins pour lesquelles il est prévu Le GS820 est une source de signal et un instrument de mesure, qui peut émettre et mesurer la tension et le courant. N’utilisez pas cet instrument à d’autres fins que l’émission de signal et la réalisation de mesures. Inspecter l’apparence physique Ne pas utiliser l’instrument si son intégrité physique semble être compromise. Vérifier l’alimentation Avant de brancher le cordon d’alimentation, vérifier que la tension source correspond à la tension d’alimentation nominale du GS820 et qu’elle est compatible avec la tension nominale maximale du cordon d’alimentation. Utiliser le cordon d’alimentation et la fiche adaptés Pour éviter tout risque de choc électrique ou d’incendie, toujours utiliser le cordon...
Page 12 Relier l’instrument à la terre avant de le brancher sur des connexions externes Toujours relier l’instrument à la terre avant de le brancher aux appareils à mesurer ou à une commande externe. Avant de toucher un circuit, mettre l’instrument hors tension et vérifier l’absence de tension. Pour éviter tout risque de choc électrique, brancher la terre de la sonde et du connecteur d’entrée sur la terre de l’appareil à mesurer. Catégorie de mesure La catégorie de mesure des terminaux d’entrée de signal du GS820 est Autre (O). Ne pas l’utiliser pour mesurer l’alimentation électrique, ni pour les catégories de mesure II, III et IV. Installer et utiliser l’instrument aux emplacements appropriés • Ne pas installer, ni utiliser l’instrument à l’extérieur ou dans des lieux exposés à la pluie ou à l’eau. • Installer l’instrument de manière à pourvoir immédiatement le débrancher du secteur en cas de fonctionnement anormal ou dangereux.
Page 13: Sales In Each Country Or Region
Product Category With reference to the equipment types in the WEEE directive, this product is classified as a “Monitoring and control instruments” product. When disposing products in the EU, contact your local Yokogawa Europe B.V. office. Do not dispose in domestic household waste. EU Battery Directive EU Battery Directive (This directive is valid only in the EU.)
Page 14: Conventions Used In This Manual
Conventions Used in This Manual Markings The following markings are used in this manual. Improper handling or use can lead to injury to the user or damage to the instrument. This symbol appears on the instrument to indicate that the user must refer to the users manual for special instructions. The same symbol appears in the corresponding place in the user’s manual to identify those instructions.
Page 15 Conventions Used in This Manual Subheadings On pages that describe the operating procedures in chapters 3 through 17 and the appendix, the following symbols are used to distinguish the procedures from their explanations. Procedure Carry out the procedure according to the step numbers. All procedures are written with inexperienced users in mind;...
Page 16: Table Of Contents
System Configuration Diagram .................. 2-2 Synchronous Operation by Connecting the I/O Terminals for Synchronous Operation (SYNC IN/OUT) ......................2-2 Block Diagram ....................... 2-3 2.2 Source Measure Function of the GS820 ................2-4 GS820 Construction ...................... 2-4 Source Function and Measurement Function ............... 2-4 Combinations Source Function and Measurement Function ........2-4 Source and Measurement Timing ................. 2-5 Basic Timing of Source and Measurement ..............2-5 Setting the Timing Using Triggers ................2-5 Sweep Function ......................
Page 17 Highly Accurate Measurement and High-Speed Measurement ........2-18 Local Sense and Remote Sense ................2-18 Integration time ......................2-18 Offset Calibration Function ..................2-18 Sweep ..........................2-19 Sweep Function of the GS820 ..................2-19 Basic Operation of Sweeps ..................2-19 Linear Sweep ......................2-20 Log Sweep ........................2-21 Start Level and Stop Level ..................2-21 Step Count .......................
Page 18 Contents 2.10 Other Functions ......................2-36 USB Storage Function ....................2-36 Non-Volatile Storage (GS820ROM) ................. 2-36 Volatile Storage (GS820RAM) ................. 2-37 Formatting the Storage .................... 2-37 USB Communication (Command Control by Way of USB-TMC) ........ 2-37 Ethernet Communications ................... 2-38 Command Control Using VXI-II ................2-38 Panel Control Using a Browser ................2-38 File Transfer with FTP Clients.................. 2-38 Command Control Using Port 7655 ................. 2-38 GP-IB Communications ....................2-38 RS-232 Communications ....................
Page 19 Contents 5.10 Setting the Pulse Base ....................5-16 5.11 Setting the Pulse Width ....................5-17 5.12 Turning the Output ON/OFF and Zero Source ............... 5-18 Chapter 6 Sweep Setting the Linear Sweep ....................6-1 Setting the Log Sweep ..................... 6-5 Setting the Programmable Sweep ..................6-9 Setting the Single-Step Sweep ..................6-11 Starting the Sweep Operation ..................
Page 20 Contents Chapter 12 USB Interface 12.1 USB Interface Functions and Specifications ..............12-1 12.2 Selecting the USB Interface Function ................12-2 12.3 Viewing the VISA Setup Information................12-3 Chapter 13 Ethernet Interface 13.1 Ethernet Interface Functions and Specifications ............13-1 13.2 Connecting to the Network ..................... 13-2 13.3 Setting the Network (TCP/IP) ..................13-3 13.4 Viewing the Network Settings ..................13-6 13.5 Web Server Function ......................
Page 21 Contents 16.3 Status Reports ......................16-45 16.3.1 Status Reports ....................16-45 16.3.2 Status Byte ....................16-46 16.3.3 Standard Event Register................16-47 16.3.4 Source Event Register ................... 16-49 16.3.5 Measurement Event Register ................ 16-51 16.3.6 Output Queue and Error Queue ..............16-52 16.4 Sample Programs ......................
Page 22: Front Panel
Illuminates when a sampling error occurs in sweep start, source trigger, or measurement trigger. → Sections 5.7, 6.5, and 7.6 Display → Section 1.3 Soft keys Selects items on the soft key menu that appears when setting up the GS820. → Section 4.1 GS820 MULTI CHANNEL SOURCE MEASURE UNIT...
Page 23: Rear Panel
Used to connect multiple GS820s and perform synchronized operation. → Section 10.3 USB port Used to connect to a PC with a USB interface and control the GS820 with commands by way of the USB storage or USB-TMC function. → Sections 4.6 and 12.2 Ethernet port Connects to a LAN.
Page 24: Display Mode And Displayed Contents
Display Mode and Displayed Contents Display Mode ESC (DISPLAY) to switch the display mode. 2-Channel Display The left half of the display shows CH1 information, and the right half shows CH2 information. The channel that is currently controllable is displayed with a frame. Press CH to switch the controllable channel.
Page 25 1.3 Display Mode and Displayed Contents Source Waveform and Sweep Mode Indicator Displays the combination of the source waveform and sweep mode ON/OFF. The following four combinations are available. Indication Source Waveform Sweep Pulse DC Swp Pls Swp Pulse Wiring System Indicator Displays the selected wiring system. 2W/2Wire: Local sense 4W/4Wire: Remote sense Equation Computation Indicator Displays “MATH” when equation computation is ON.
Page 26: Key Groups And Menus
Key Groups and Menus The GS820 has five key groups for each function, output control, trigger control, SOURCE, MEASURE, and COMMON, as well as keys for switching the display and locking the keys. This section introduces each key group in a tree structure. How to View the Tree Structure Soft key menu shown...
Page 27 1.4 Key Groups and Menus SOURCE group V / I Switches the source function (voltage (VS) or current (IS)) (section 5.1) Shape CONFIG Selects the source waveform (DC or pulse source) (section 5.4) DC Pulse PULSE S.Delay Sets the source delay (section 5.5) SwpStart Sweep Start Selects the sweep...
Page 28 1.4 Key Groups and Menus MEASURE group V / I Switches the measurement function (voltage (V) or current (I)) (section 7.2) MODE Selects the measurement mode (Off, fixed Measure Mode function (Fixed), auto function (Auto), V / I SHIFT Off Fixed Auto V-Meter I-Meter R-Meter voltmeter (V Meter), ammeter (I Meter), MODE...
Page 29 Saves the setup data to Setup4 (GS820ROM) (section 11.1) Setup4 View Displays the contents of a setup file (section 11.2) PowerOn Selects the setup used when the GS820 is powered up (section 11.3) Setup Load Loads a setup (section 11.2) Setup...
Page 30 1.4 Key Groups and Menus COMMON group Continued from the previous page StartBNC Selects the sweep start BNC terminal (input or output) External Input Output (section 10.1) TrigBNC Selects the trigger BNC terminal (input or output) Input Output (section 10.1) Auxiliary Out Aux Out Selects the auxiliary trigger...
Page 31: Chapter 2 Explanation Of Functions
PC. In addition to the storage function, the USB can be used to perform command control by way of the USB-TMC protocol. Furthermore, command control can be performed by way of other communication interfaces such as GP-IB, RS-232, and Ethernet (VXI-11 protocol/7655 command socket). These interfaces allow multiple GS820s to be controlled simultaneously using commands. The Ethernet communication also has an FTP server function for the built-in storage and an HTTP server (Web server) function that allows information to be viewed and the GS820 to be controlled from a browser. Index IM 765601-01E...
Page 32: System Configuration Diagram
2.1 System Configuration and Block Diagram System Configuration Diagram Connect as external storage of a PC by way of the USB Command control Communication line storage function GS820 START START GS820 GS820 TRIG TRIG Internal storage SYNC IN SYNC OUT...
Page 33: Block Diagram
Power Amp * DUT: Device Under Test The GS820 consists of a digital section at ground potential and analog sections that are insulated from the digital section. The CH1 and CH2 analog sections are also mutually insulated. The power supply is a single output source. The desired circuit voltage is supplied to the digital section through a non-isolated DC-DC converter and to the analog sections through an isolated DC-DC converter.
Page 34: Source Measure Function Of The Gs820
This section describes the source measurement function, the basic function of the GS820. GS820 Construction The GS820 is equipped with two analog channels with each channel consisting of a constant voltage source (VS), a constant current source (IS), a voltmeter (VM), and an ammeter (IM). The two channels are isolated. Each channel allows voltage sensing using a two-wire system or a four-wire system by switching between local sense and remote sense.
Page 35: Source And Measurement Timing
2.2 Source Measure Function of the GS820 Source and Measurement Timing Basic Timing of Source and Measurement The GS820 has two source modes: DC source and pulse source. In either mode, source and measurement are carried out with a trigger input as the starting point. Measurement is performed over a preset integration time after starting the source operation. After the measurement, the auto zero measurement function, which measures the internal zero reference and performs offset correction in real-time, can be used.
Page 36: Sweep Function
2.2 Source Measure Function of the GS820 Asynchronous Operation of Source and Measure The GS820 can execute the trigger generation and measurement asynchronously. The figure below shows an example in which the source trigger is set to Timer1, the measure trigger is set to Timer2, and multiple measurements are performed on a single source trigger.
Page 37: Source
Source Source Range Source Range Indicates the range that the GS820 can generate or measure. 765601/ 765602 765611/ 765612 3.2 A 1.2 A 0.6 A 1.2 A −18 V −7 V 18 V −50 V −20 V 20 V 50 V −1.2 A...
Page 38: Current Range
2.3 Source Current Range The current range consists of the current source range and current limiter range. 765601/ 765602 1.2 A/18 V range 3.2 A/7 V range 200 mA/18 V range 20 mA/18 V range 2 mA/18 V range 200 µA/18 V range 20 µA/18 V range 2 µA/18 V range 200 nA/18 V range...
Page 39: Fixed Source Range And Auto Range
The target range is specified directly. You can set the source level within the source range (see “Voltage Range” and “Current Range” on pages 2-7 and 2-8) of the specified range. Auto Source Range The GS820 automatically switches to the most suitable range according to the source level. This allows you to set the source level within the source range (see “Source Range” on page 2-7) without having to worry about the range. However, the output may be temporarily discontinuous if the range switches.
Page 40: Source Timing Adjustment Using The Source Delay
2.3 Source Source Action for Linear Sweep, Log Sweep, and Programmable Sweep During the sweep period, the source setting changes to the next setting after the source delay time elapses from the time the source trigger is applied. SrcChg (source change) that is selectable as a measurement trigger is generated after the source delay time elapses from the time the source trigger is applied at the time the source setting is changed. In addition, source busy (TRIG OUT) is set low when the source trigger is applied and returns to high after the generation of SrcChg + software processing.
Page 41: Output On/Off And Zero Source
ZERO Zero Source Function In addition to the generation of zero voltage or current, the zero source function of the GS820 allows the voltage applied to the load or the current supply to be limited at an extremely low level by setting the current or voltage limiter to the minimum setting (high impedance setting for zero voltage or low impedance setting for zero current). Using this function rather than turning the output OFF avoids the problems of output relay chattering and contact life and also allows the operating time of turning the output ON and OFF to be reduced.
Page 42: Dut Protection Using The Limiter
Though dependent on the load, the electrical life of the relay is around 100,000 times. • If the output needs to be turned ON/OFF frequently, use the zero source function. For example, if you select high impedance for zero voltage source, the GS820 will simulate a relay OFF state. The output relay does not operate when switching between output ON and zero source.
Page 43: Response Mode
2.3 Source Limiter Operation in Voltage Source Mode High limit value Source voltage level Operating range Low limit value Limiter Operation in Current Source Mode Low limit value High limit value Source current level Operating range The high and low limiter values can be set separately. If tracking is turned ON, a single absolute setting is enabled, and the limiter functions in the positive and negative ranges around zero.
Page 44: Local Sense And Remote Sense
(See section 5.9 for the procedure) Offset Calibration If offset calibration is executed, the measurement function of the GS820 is used to correct the zero point offset of the source level. For example, this function is used to correct the offset fluctuation that results when the ambient temperature changes drastically. However, because measurements are performed to calibrate all the ranges, the source and measurement operations are suspended for a few seconds while the calibration is in progress.
Page 45: Measurement
Auto Measurement Range The GS820 automatically switches to the most suitable range according to the measured value. This setting is used when you do not know the range of the measured value. This setting allows you to make measurements without having to worry about the range.
Page 46: Measurement Mode
This mode is used to make measurements when there is a possibility of a limiter being activated. • Current measurement (IM) when using voltage source (VS) and voltage measurement (VM) when using current source (IS). • If a limiter is activated, the GS820 automatically switches to the other measurement function (from current measurement (IM) to voltage measurement (VM) or from voltage measurement (VM) to current measurement (IM)). Voltmeter Mode (V-Meter) Operates as a 0-A current source and functions as a voltmeter by measuring the voltage.
Page 47: Measurement Action
Stores to the storage memory Note Index If you change the GS820 settings while the measurement action is being carried out, the corresponding measurement becomes invalid. The measurement result display in this case becomes “-----,” and the result is not stored.
Page 48: Measurement Timing Adjustment Using The Measurement Delay
If the auto zero function is turned ON, the GS820 measures the internal zero reference for each measurement. The measured result is obtained by subtracting this value from the measured value canceling the offset drift of the measurement circuit in the GS820. However, if the auto zero function is ON, measurement is performed twice. Therefore, the measurement time is approximately twice the measurement time when the auto zero function is OFF. If speed takes precedence over accuracy, turn the auto zero function...
Page 49: Sweep
If the sweep function is selected, the GS820 enters a start-wait state. If a start trigger is applied, the GS820 enters a trigger-wait condition. After the sweep starts, the GS820 changes the source level each time a source trigger is received and repeats the source action the specified number of counts (1 to 1000 or infinity (∞)). When a sweep operation...
Page 50: Linear Sweep
2.5 Sweep (See section 6.1 for the procedure) Linear Sweep Performs a linear sweep operation at step levels at regular intervals from the specified start level to the stop level. When source waveform is DC When source waveform is pulse Trigger Trigger Trigger Trigger Trigger Trigger Trigger Trigger Trigger Trigger Stop level...
Page 51: Log Sweep
2.5 Sweep (See section 6.2 for the procedure) Log Sweep Sweeps the source level from the start level to the stop level in an exponential form divided by the step count. The step count can be set to any value in the range of 2 to 100000. However, if the start value and stop value have opposite signs, an error occurs, and the sweep operation cannot be carried out.
Page 52: Programmable Sweep
Programmable Sweep A programmable sweep created in advance on a PC (sweep pattern file in CSV format) is loaded into the GS820, and the GS820 sweeps the source level along the program file pattern. Arbitrary items other than the source level can also be swept simultaneously. The step count can be set to any value up to 100000. If the step count of the sweep pattern exceeds 100000, the first 100000 steps are loaded.
Page 53: Single-Step Sweep
2.5 Sweep Notation The first line is a title line. The terms to be defined are expressed using the character strings in the table below. Title Definition Description Term Expression [CHn.]SF CH1/CH2 source function V/I 105 Character string [CHn.]SR CH1/CH2 source range When SF=V: 0.2 to 18 Real number When SF=I: 200E-9 to 3 Real number [CHn.]SL CH1/CH2 source level...
Page 54: Repeat Count Of Sweeps
You can set a repeat count for linear sweep, log sweep, and programmable sweep. The selectable range is 1 to 1000 or infinity (∞). Specify zero for infinity (∞). For example, if the repeat count is set to 5, the GS820 repeats the sweep operation five times when it receives a start trigger. Then, the GS820 returns to the start-wait state. If the repeat count is set to infinity (∞), the GS820 repeats the sweep operation until you turn the sweep operation or output OFF. (See section 6.5 for the procedure)
Page 55: Overview
Triggering Overview The trigger function of the GS820 achieves various types of triggering through combinations. The following three types of triggers are available. Source Trigger (See section 5.7 for the procedure) This trigger is used to start a source action (see page 2-9). Select any of the following trigger sources. • External trigger • Auxiliary trigger (rising edge) (Aux ) • Auxiliary trigger (falling edge) (Aux ) • Timer1...
Page 56 2.6 Triggering Each trigger source is described below. External Trigger The falling edge of a signal applied to TRIG IN of the input terminal for synchronous operation (SYNC IN, see section 10.3, “Synchronous Operation”) or TRIGGER IN of the BNC I/O terminal (see section 10.1, “Setting the BNC I/O Terminal”) on the rear panel is used as a trigger. A trigger can also be generated using the TRIG key on the front panel or the “ :TRIGger ” or “ *TRG ” communication command. External Sweep Start The falling edge of a signal applied to START IN of the input terminal for synchronous operation (SYNC IN, see section 10.3, “Synchronous Operation”) or START IN of the...
Page 57: Auxiliary Trigger Source
2.6 Triggering Auxiliary Trigger Source (See section 10.5 for the procedure) You can select from the following four types. Measurement Busy (MeasBusy) This signal is set low when a measurement trigger is applied to CH1 and set high when the measurement action is completed. In essence, this signal indicates that measurement is in progress on CH1.
Page 58: Sweep Start Output, Trigger Output, And Auxiliary Trigger Output
Sweep Start Output, Trigger Output, and Auxiliary Trigger Output (See sections 10.1 and 10.3 for the procedure) The GS820 can output the sweep start, source trigger, and auxiliary trigger signals from the SYNC OUT terminal (output terminal for synchronous operation) or the BNC output terminal to the subsequent GS820s that are connected.
Page 59: Synchronization And External I/O
Synchronization Function and External I/O of the GS820 Synchronization Function There are two types of synchronization functions on the GS820. One is the inter- channel synchronization in which synchronous or asynchronous is specified between two channels. The other is the inter-unit synchronization in which master or slave is specified for the synchronous operation of multiple GS820s that are connected.
Page 60: Channel Expansion Function
2.7 Synchronization and External I/O (See section 10.6 for the procedure) Channel Expansion Function Allows the master unit to handle up to 10 channels. A program file in which the channel expansion is defined is loaded into the master unit and distributed to the slave units via the Ethernet network.
Page 61: Computation
OFF, it is automatically turned ON. (See section 8.3 for the procedure) Equation Computation In equation computation, the GS820 performs computation by parsing the user-defined file that is stored in the MATH directory on the built-in GS820ROM (see a description of the USB storage function on page 2-36). Four arithmetic operations, trigonometric functions, and the like can be performed on variables such as source values and measured values as well as constants.
Page 62: User-Defined File Format
2.8 Computation The built-in computation file is also a definition file for the equation computation that is available in the MATH directory when the GS820 is shipped from the factory or created when the storage is formatted (see page 4-9). • Decibel (dB.txt) ML = A*log(abs(ML/B)): Computes the decibel value of the measured value with respect to B. • Percent (Percent.txt) ML = (ML/A)*100: Computes the percentage of the measured value with respect to A.
Page 63: Store/Recall (Statistical Computation Value Display)
Store/Recall (Statistical Computation Value Display) Executing and Stopping the Storage Operation (See section 9.1 for the procedure) This function stores the measured results in the storage memory from when the storage is turned ON until the specified number of points are stored. The storage count can be set in the range of 1 to 100000. If the storage operation is aborted before reaching the specified storage count, the stored results up to that point is stored.
Page 64: Recalling Statistical Computation Values
2.9 Store/Recall (Statistical Computation Value Display) The name of the most recent result file is always Result.csv. Up to 33 result files are numbered and stored within the size of the GS820RAM (16 MB). When the storage operation is repeated, the result file is automatically numbered, and the file name is automatically updated. If two storage operations are completed, the most recent file will be Result.csv, and the previous result file will be Result1.csv.
Page 65: Reading The Storage Result Via Communications
2.9 Store/Recall (Statistical Computation Value Display) Reading the Storage Result via Communications (See section 9.2 for the procedure) If the stored results file generation function is OFF, the storage result in the GS820RAM can be read directly using the communication function. You can set the format used to read the data to ASCII or binary. In addition, statistical computation values can also be read using the communication function.
Page 66: Other Functions
PC, you can process the data or draw graphs on a general-purpose spreadsheet application. The system file that is used to update the GS820 system is also stored on this storage. Non-Volatile Storage (GS820ROM) GS820ROM is a non-volatile storage that retains the data on the storage even when the power is turned OFF. It contains three directories, MATH, PROGRAM, and SETUP.
Page 67 By factory default, sample program files are stored in this directory. The sample program files are not erased even if the storage is formatted. SETUP A directory for storing the GS820 panel settings. Any of the files in this directory can be selected as a setup file. By factory default, a default setup file is stored in this directory. The default setup file is not erased even if the storage is formatted.
Page 68: Volatile Storage (Gs820Ram)
(See chapter 14 for the procedure) GP-IB Communications An interface used to control the GS820 using commands. You can specify the same settings as you would using the front panel keys of the GS820 and output setup data and measured data. Because the command control of the GS820 is mutually independent, other communication functions can be used while controlling the GS820 using the GP-IB.
Page 69: Selecting The Settings Applied At Power On
Selecting the Settings Applied at Power ON (See section 11.3 for the procedure) The GS820 settings at power-on can be changed from the default settings to the settings selected by the user. If one of the saved setup files is selected as the settings applied at power-on, the GS820 starts up using the specified settings for subsequent power-ons.
Page 70: Handling Precautions
Handling Precautions Read the Safety Precautions Safety Precautions If you are using the GS820 for the first time, make sure to read “Safety Precautions” on pages vi to x. Do Not Remove the Case Do not remove the case from the instrument. Some sections inside the instrument have high voltages that are extremely dangerous. For internal inspection and adjustment,...
Page 71 3.1 Handling Precautions General Handling Precautions Do Not Place Objects on Top of the Instrument Never place objects containing water on top of the instrument, otherwise a breakdown may occur. Do Not Apply Shock or Vibration Do not apply shock or vibration as it may cause a malfunction. In addition, applying shock to the input/output terminal or the connected cable can cause electrical noise to enter or output from the instrument.
Page 72: Installation
Installation Installation Orientation WARNING • To prevent fire, never use the instrument with the rear panel facing down. There are outlet holes for the cooling fan on the rear panel. Placing the instrument with the rear panel down can cause a fire when the instrument malfunctions. • This instrument is designed to be used indoors. Do not install or use it outdoors. • Install the instrument so that you can immediately remove the power cord if an abnormal or dangerous condition occurs. CAUTION If you block the inlet or outlet holes on the instrument, it will become hot and may break down.
Page 73 3.2 Installation WARNING • When you put away the stand, be careful not to get your hand caught between the stand and the instrument. • Handling the stand without firmly supporting the instrument can be dangerous. Please take the following precautions. • Only handle the stand when the instrument is on a stable surface. • Do not handle the stand when the instrument is tilted. • Do not place the instrument in any position other than those shown in the above figures. French AVERTISSEMENT • Lorsque vous rabattez le support, veillez à ne pas vous coincer la main entre le support et l’instrument. • Lorsque vous manipulez le support, soutenez toujours l’instrument fermement. Prenez les précautions suivantes. • N e manipulez le support que lorsque l’instrument est placé sur une surface stable. • Ne manipulez pas le support lorsque l’instrument est incliné. • Ne pas placer l’instrument dans des positions autres celles indiquées ci-dessus.
Page 74 • Where an excessive amount of soot, dust, salt, and iron are present. • Where water, oil, or chemicals may splash. We strongly recommend you store the instrument in an environment with a temperature between 5 and 40°C and a relative humidity between 20 to 80%RH. Rack Mount When rack mounting the GS820, use the rack mount kit that is sold separately. For the procedure to rack mount the GS820, see the User’s Manual included in the rack mount kit. Name Model Notes Rack mount kit...
Page 75: Connecting To The Power Supply
• Connect the power cord after checking that the power switch of the instrument is turned OFF. • To prevent electric shock or fire, be sure to use the power cord for the instrument that is supplied by YOKOGAWA. • Make sure to connect protective earth grounding to prevent electric shock. Connect the power cord to a three-prong power outlet with a protective earth terminal. • Do not use an extension cord without protective earth ground. The protective features of the instrument will be rendered ineffective.
Page 76 3.3 Connecting to the Power Supply Connecting the Power Cord Check that the power switch of the instrument is turned OFF. Connect the power cord plug to the power connector on the rear panel. (Use the power cord that comes with the package.) Connect the plug on the other end of the power cord to the outlet that meets the conditions below. The AC outlet must be of a three-prong type with a protective earth ground terminal.
Page 77: Turning The Power Switch On/Off
T R IG LI M H O L Power ON Operation Self-test starts automatically when the power switch is turned ON. If the test completes successfully, the GS820 is set according to the setup file selected in section 11.3, “Selecting the Settings Applied at Power ON.” Check that the GS820 has started normally before you use it. Note If you are turning the power switch ON after turning it OFF, allow at least 5 s before turning it When the Power-on Operation Does Not Finish Normally Turn off the power switch, and check the following items.
Page 78 We recommend that you save important setup data to the SETUP directory on the non-volatile storage (GS820ROM) (see “USB Storage Function” on page 2-36). Note The GS820 may produce a momentary beeping sound, but this sound does not indicate an error. CAUTION Do not turn off the power when the instrument’s output is turned on. Doing so can damage the GS820.
Page 79: Wiring Precautions
3 A range ±7 V 1.0 A range ±20 V • The maximum allowable voltage between the case and each terminal is ±250 Vpeak. Applying a voltage exceeding this value can damage the GS820. • Keep the voltage that is generated across OUTPUT Hi and SENSE Hi and across OUTPUT Lo and SENSE Lo less than or equal to ±0.5 Vpeak. • When making a four-terminal connection, be careful that the connection to the SENSE terminal does not get cut. If the voltage is not sensed correctly, abnormal voltage will appear across the OUTPUT Hi and OUTPUT Lo terminals.
Page 80 Avant le câblage • Relier l’instrument à la terre avant de le brancher sur l’appareil cible. Le cordon d’alimentation livré avec l’instrument est doté de trois broches. Brancher le cordon d’alimentation sur une prise de courant à trois plots mise à la terre. • Veillez à mettre le GS820 hors tension lorsque vous connectez le dispositif à tester. Câblage • Utilisez seulement des câbles en plomb dont les pièces conductrices sont recouvertes pour un raccordement aux bornes de sortie. Des pièces conductrices exposées peuvent entraîner une choc électrique. • N’utilisez pas de câble de plomb dont les pièces conductrices sont exposées, en raison de traces d’usure de l’isolation ou de câbles cassés, car ceci risque d’entraîner un court-circuit ou un choc électrique. • Ne raccordez pas une source de tension en mode source de tension ou une source de courant en mode source de courant. Un raccordement incorrect risque d’endommager le GS820. Index IM 765601-01E 3-11...
Page 81 Plage de 1 A ±18 V Plage de 0,5 A ±50 V Plage de 3 A ±7 V Plage de 1,0 A ±20 V • La tension maximale autorisée entre le boîtier et chacune des bornes est de ±250 Vcrête. L’application d’une tension dépassant cette valeur risque d’endommager le GS820. • Maintenez une tension entre les bornes OUTPUT Hi et SENSE Hi et OUTPUT Lo et SENSE Lo inférieure ou égale à ±0,5 Vcrête. • Lors d’une connexion aux quatre bornes, veillez à ce que la connexion aux bornes SENSE ne soit pas coupée. Si la tension n’est pas correctement détectée, une tension anormale est générée entre les bornes OUTPUT Hi et OUTPUT Lo. • Lors d’une connexion à deux bornes, utilisez les bornes OUTPUT. Si vous utilisez les bornes SENSE, les courants circulant dans la ligne SENSE empêchent le GS820 de fonctionner normalement et entraînent des dommages.
Page 82 Take measures such as using shielded wires. Making a connection as shown in the figure below is effective using the functional ground terminal on the rear panel. Measure against noise when handling minute currents Shield the lead wire of the high end at ground potential GS820 OUTPUT Hi OUTPUT Lo Index IM 765601-01E...
Page 83: Setting The Line Frequency
The line frequency that is currently detected is displayed under Detected. Press the soft key corresponding to the desired line frequency. Explanation If Auto is selected, the line frequency is automatically selected when the GS820 is turned ON. Select Auto in normal cases. Note The line frequency specified here is related to the integration time (see section 7.4, “Setting the Integration Time”). The integration time is set to an integer multiple of the PLC (Power Line...
Page 84: Setting The Date, Time, And The Time Difference From Gmt (Greenwich Mean Time)
Setting the Date, Time, and the Time Difference from GMT (Greenwich Mean Time) Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Next 1/2 soft key. Press the Time Adjust soft key. Setting the Date and Time Press the Clock Adjust soft key to display the date/time setup screen. Press the Edit soft key.
Page 85 Setting of the Time Difference from GMT Set the time difference in the range of −12 hours 00 minutes to 13 hours 00 minutes. For example, Japan standard time is ahead of GMT by 9 hours. In this case, set Hour to 9 and Minute to 00. Checking the Standard Time Check the standard time for the region where the GS820 is to be used using one of the following methods. • Check the date and time setting on your PC. • Check the website at the following URL:http://www.worldtimeserver.com/ Note The GS820 does not support Daylight Savings Time. To set the Daylight Savings Time, adjust...
Page 86: Chapter 4 Common Setup
Pressing the right arrow key erases all the entered characters. Rotary Knob Turn clockwise to increase the value. Cursor Turn counterclockwise to decrease the value. GS820 SAMPLE ERROR MASTER KEY LOCK Numeric keys REMOTE Enters a value directly.
Page 87 4.1 Basic Operation of Keys and Rotary Knob and How to Enter Values How to Operate the Setup Menu Procedure Press a key to display a corresponding setup menu. Press a soft key corresponding to an item. A: T he setting switches each time you press a corresponding soft key. The underlined item is selected.
Page 88: Switching The Display Channel
Switching the Display Channel Switching the Displayed Channel For 2-Channel Display Each time you press CH, the controllable channel switches. A frame is shown around a controllable channel. For 1-Channel Display Each time you press CH, CH1 and CH2 toggles. The channel shown on the display is the controllable channel.
Page 89: Setting The Inter-Channel Synchronization Mode
Setting the Inter-Channel Synchronization Mode Procedure Press SYNC to display the SYNC menu. On the Channel menu, press the Sync or Async soft key. Explanation Inter-Channel Synchronization Mode Inter-channel synchronization mode specifies whether two channels are to be operated in sync. The following two modes are available. Sync: T he two channels are synchronized (CH2 follows CH1). When selected, the SYNC key illuminates.
Page 90: Setting The Timer Period
Setting the Timer Period Procedure Press SHIFT+SYNC (TIMER) to display the Timer menu. Press the Timer1 or Timer2 soft key. Use the rotary knob or numeric keys&< > to set the timer period. If you use the numeric keys, press the soft key for the desired unit to confirm the value. Synchronizing the Timers Press the Timer Sync soft key.
Page 91: Selecting The Wiring System (Remote Sense Or Local Sense)
Selecting the Wiring System (Remote Sense or Local Sense) Procedure Press CONFIG in the MEASURE section of the front panel to display the CONFIG menu. Press the Wire soft key to select 4W or 2W. Explanation The GS820 has two wiring systems: 2W and 4W. 2W: Two-terminal connection (local sense) 4W: Four-terminal connection (remote sense) The connection diagrams are given on the next page. WARNING • When making a four-terminal connection, be careful that the connection to the SENSE terminal does not get cut. If the voltage is not sensed correctly, abnormal voltage will appear across the OUTPUT Hi and OUTPUT Lo terminals.
Page 92 OUTPUT Lo terminals will be larger than the voltage generated on the load. If the source voltage across the OUTPUT Hi and OUTPUT Lo terminals exceeds the source range, the GS820 will not be able to generate the voltage correctly, and abnormal load detection may be activated causing the output to be turned OFF. Be sure that the source voltage across the OUTPUT Hi and OUTPUT Lo terminals do no exceed the source range.
Page 93: Usb Storage Function
GS820. If you find out that the PC connected to the GS820 is infected with a computer virus, format the storage. Computer viruses in the GS820 will be erased.
Page 94 GS820RAM, the current settings are saved to a file named Setup.txt. When updating the system firmware, the system file (System.srec) is written in this directory from your PC. For details, see section 17.5, “Updating the System Firmware.” Formatting the Storage If GS820ROM cannot be detected on your PC, if you want to set the GS820 to factory default conditions, or if the storage is corrupt, you must format the storage. Index IM 765601-01E...
Page 95 Press the Exec soft key to execute the search. Note • Always format the storage from the GS820 menu. If you format the storage from your PC, default directories such as MATH and default files are not created. • You can also create subdirectories and write files to the storage, but be sure that the storage does not become full. • Do not change the existing directory names such as MATH. If you do, you will no longer be able to select files from the GS820. IM 765601-01E 4-10...
Page 96: Chapter 5 Source
Chapter 5 Source Switching the Source Function Procedure Press V/I in the SOURCE section of the front panel. Voltage (VS) and current (IS) switch alternately each time you press this key. Explanation Display Example of Source Function Voltage source display Current source display <<Corresponding Command Mnemonic>> [:CHANnel<n>]:SOURce:FUNCtion VOLTage|CURRent Index IM 765601-01E...
Page 97: Setting The Source Range
Setting the Source Range Procedure There are two source ranges: fixed range and auto range. Changing the Fixed Range Press the key under RANGE in the SOURCE section of the front panel to change the source range. Turning Auto Range ON/OFF Press SHIFT+ (AUTO) in the SOURCE section of the front panel. The auto range function turns ON and Auto appears in the display.
Page 98 5.2 Setting the Source Range 765611/765612 • Voltage Source Range Source Range Range Generated Resolution Max. Load Current 200 mV ±200.000 mV 1 µV ±1.2 A ±2.00000 V 10 µV ±1.2 A 20 V ±20.0000 V 100 µV ±1.2 A 50 V ±50.0000 V 100 µV...
Page 99 5.2 Setting the Source Range 765611/765612 • Source Voltage Level in Voltage Source Mode and Source Range Selected Automatically Condition Selected Range Resolution ≤ |X| ≤ 0.000 mV 200.000 mV 200 mV 1 µV < |X| ≤ 0.20000 V 2.00000 V 10 µV < |X| ≤ 2.0000 V 20.0000 V 20 V...
Page 100: Setting The Limiter
Setting the Limiter Procedure Turning the Limiter ON/OFF Press SHIFT+SWEEP (LIMIT) to display the Limiter setup menu. Press the Limit soft key to turn the limiter On or Off. Turning the Tracking ON/OFF Press the Tracking soft key to turn the tracking function On or Off. Setting the Limit Values •...
Page 101 5.3 Setting the Limiter Explanation Turning the Limiter ON/OFF ON: The limiter is activated at the specified limit values. OFF: T he limiter is activated at the boundary of the source range (see section 2.3). However, the limit values are not displayed. Tracking ON: Sets the limit values with the same absolute value but with opposite signs. Example High limit value: +1.00000 mA Low limit value: −1.00000 mA OFF: Set the limit values to arbitrary positive and negative values. Example High limit value: +1.50000 mA Low limit value: −1.00000 mA Setting the Limit Values In voltage source mode, the current limiter is enabled.
Page 102 5.3 Setting the Limiter 765611/765612 • Current Limiter | Setting | Range Resolution Minimum Setting 10.000 nA to 200.000 nA 200 nA 1 pA 10 nA 0.20001 µA to 2.00000 µA 2 µA 10 pA 10 nA 2.0001 µA to 20.0000 µA 20 µA 100 pA 100 nA...
Page 103: Selecting The Source Waveform And Source Level
Selecting the Source Waveform and Source Level Procedure Press CONFIG in the SOURCE section of the front panel to display the CONFIG menu. Selecting the Source Waveform Press the Shape soft key to select DC or Pulse. Setting the Source Level Use the rotary knob or numeric keys&< > to set the source level. If you use the numeric keys, press the soft key for the desired unit to confirm the setting.
Page 104 Selectable Range of Source Level See the source range for fixed range in section 5.2, “Setting the Source Range.” Note Because there is output capacitance indicated below across the OUTPUT Hi and OUTPUT Lo terminals of the GS820, the following effects are present. • If the load changes drastically such as when a short circuit occurs in voltage source mode, a large transient discharge current is generated from the output capacitance. • If a voltage source (power supply, amplifier, signal generator, and the like) is connected as a load, the load voltage source may be unstable due to the output capacitance.
Page 105: Setting The Source Delay
Setting the Source Delay Procedure Press CONFIG in the SOURCE section of the front panel to display the CONFIG menu. Press the S.Delay soft key to display the source delay setup screen. Use the rotary knob or numeric keys&< > to set the source delay. If you use the numeric keys, press the soft key for the desired unit to confirm the setting.
Page 106 Pulse base value Time ↑ Source trigger For Linear Sweep, Log Sweep, and Programmable Sweep The GS820 executes a step within a predefined pattern sweep after the source delay elapses from the source trigger point. Source Source delay Source delay Time ↑...
Page 107: Selecting The Sweep Start Source
Selecting the Sweep Start Source Procedure Press CONFIG in the SOURCE section of the front panel to display the CONFIG menu. Press the SwpStart soft key to display the Sweep Start menu. Press the soft key corresponding to the desired sweep start signal source. Explanation Sweep Start Source A signal source used to start the sweep operation. Select from the items below. External: External start Aux : Auxiliary trigger (rising edge)
Page 108: Selecting The Source Trigger
Selecting the Source Trigger Procedure Press CONFIG in the SOURCE section of the front panel to display the CONFIG menu. Press the SrcTrig soft key to display the Source Trigger menu. Press the soft key corresponding to the desired source trigger. Explanation Source Trigger A signal source used to trigger the source operation. Select from the items below. External: External trigger Aux : Auxiliary trigger (rising edge)
Page 109: Selecting The Response Mode
Press the soft key corresponding to the desired response mode. Explanation Response Mode Select an appropriate response mode according to the DUT used or the application objective. Normal: T he response time is short, but the GS820 may become unstable and oscillate when a highly inductive or capacitive load is connected. Stable: T his mode is robust to inductive and capacitive loads, but the response time is longer. <<Corresponding Command Mnemonic>>...
Page 110: Offset Calibration
Offset Calibration Procedure Press CONFIG in the SOURCE section of the front panel to display the CONFIG menu. Press the ZeroCal Exec soft key to execute the calibration. The ZeroCal Exec indicator in the display is highlighted while the calibration is in progress. Explanation Offset calibration is executed to correct the offset drift in the source level that is caused by temperature changes and the like.
Page 111: Setting The Pulse Base
5.10 Setting the Pulse Base Procedure Press SHIFT+CONFIG (PULSE) in the SOURCE section of the front panel to display the PULSE menu. Press the Pulse Base soft key to display the pulse base setup screen. Use the rotary knob or numeric keys&< > to set the pulse base value. If you use the numeric keys, press the soft key for the desired unit to confirm the setting.
Page 112: Setting The Pulse Width
5.11 Setting the Pulse Width Procedure Press SHIFT+CONFIG (PULSE) in the SOURCE section of the front panel to display the PULSE menu. Press the P.Width soft key. Use the rotary knob or numeric keys&< > to set the pulse width. If you use the numeric keys, press the soft key for the desired unit to confirm the setting.
Page 113: Turning The Output On/Off And Zero Source
When Output Is OFF The source level is set to zero and then the output relay is turned OFF. Zero Source The GS820 generates 0 V in voltage source mode and 0 A in current source mode. Setting the Zero Source Impedance The impedance for generating a zero level signal can be selected. Voltage Source Mode...
Page 114: Chapter 6 Sweep
Chapter 6 Sweep Setting the Linear Sweep Procedure Press SWEEP to display the SWEEP menu. Press the Mode soft key to display the Sweep Mode menu. Selecting the Linear Sweep Mode Press the Linear soft key to display the Linear Sweep menu. Setting the Repeat Count Press the Repeat soft key to display the Repeat Count menu.
Page 115 Use the rotary knob or numeric keys&< > to set the step level. If you use the numeric keys, press the soft key for the desired unit to confirm the setting. Starting the Sweep Operation If the output is OFF or the GS820 is generating a zero level signal, turn the output ON (see section 5.12, “Turning the Output ON/OFF and Zero Source”). When a sweep start source is applied, the sweep operation starts (see section 6.5, “Starting the Sweep Operation.”). IM 765601-01E...
Page 116 • If the sweep count calculated from the start level, stop level, and step level exceeds 100000 points, an error occurs, and the sweep operation can be carried out only up to 100000 points. • If the source range is set to auto range, the range may be changed during the sweep Index operation, because the GS820 constantly selects the most suitable range. • If set to fixed range, the sweep operation is carried out in the range best suited to the source level with the highest resolution. IM 765601-01E...
Page 117 6.1 Setting the Linear Sweep <<Corresponding Command Mnemonic>> [CHANnel<n>]:SOURce:MODE SWEep [CHANnel<n>]:SOURce[:VOLTage]:SWEep:SPACing LINear [CHANnel<n>]:SOURce[:VOLTage]:SWEep:STARt <voltage>|MINimum|MAXimum [CHANnel<n>]:SOURce[:VOLTage]:SWEep:STOP <voltage>|MINimum|MAXimum [CHANnel<n>]:SOURce[:VOLTage]:SWEep:STEP <voltage>|MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:SPACing LINear [CHANnel<n>]:SOURce[:CURRent]:SWEep:STARt <current>|=MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:STOP <current>|MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:STEP <current>|MINimum|MAXimum IM 765601-01E...
Page 118 Setting the Log Sweep Procedure Press SWEEP to display the SWEEP menu. Press the Mode soft key to display the Sweep Mode menu. Selecting the Log Sweep Mode Press the Log soft key to display the Log Sweep menu. Setting the Repeat Count Press the Repeat soft key to display the Repeat Count menu.
Page 119 Press the Step Count soft key to display the Step Count menu. Use the rotary knob or numeric keys&< > to set the step count. If you use the numeric keys, press the Enter soft key to confirm the setting. Starting the Sweep Operation If the output is OFF or the GS820 is generating a zero level signal, turn the output ON (see section 5.12, “Turning the Output ON/OFF and Zero Source”). When a sweep start source is applied, the sweep operation starts (see section 6.5, “Starting the Sweep Operation.”).
Page 120 In addition, if the start level or stop level is zero, an error occurs, and the sweep operation cannot be carried out. • If the source range is set to auto range, the range may be changed during the sweep Index operation, because the GS820 constantly selects the most suitable range. • If set to fixed range, the sweep operation is carried out in the range best suited to the source level with the highest resolution. IM 765601-01E...
Page 121 6.2 Setting the Log Sweep <<Corresponding Command Mnemonic>> [CHANnel<n>]:SOURce:MODE SWEep [CHANnel<n>]:SOURce[:VOLTage]:SWEep:SPACing LOGarithmic [CHANnel<n>]:SOURce[:VOLTage]:SWEep:STARt <voltage>|MINimum|MAXimum [CHANnel<n>]:SOURce[:VOLTage]:SWEep:STOP <voltage>|MINimum|MAXimum [CHANnel<n>]:SOURce[:VOLTage]:SWEep:POINts <integer>|MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:SPACing LOGarithmic [CHANnel<n>]:SOURce[:CURRent]:SWEep:STARt <current>|MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:STOP <current>|MINimum|MAXimum [CHANnel<n>]:SOURce[:CURRent]:SWEep:POINts <integer>|MINimum|MAXimum IM 765601-01E...
Page 122: Setting The Programmable Sweep
Setting the Programmable Sweep Procedure Press SWEEP to display the SWEEP menu. Press the Mode soft key to display the Sweep Mode menu. Selecting the Programmable Sweep Mode Press the Program soft key to display the Program Sweep menu. Setting the Repeat Count Press the Repeat soft key to display the Repeat Count menu.
Page 123 6.3 Setting the Programmable Sweep Explanation Repeat Count Set a value between 1 and 1000 or infinity (∞). If the repeat count is set to infinity (∞), the GS820 repeats the sweep operation until you turn the sweep operation or output OFF. Program File For the notation used in program files, see “Programmable Sweep” on page 2-22. Note The maximum number of steps in a program pattern is 100000. If a pattern whose step count exceeds 100000 is selected, the first 100000 points are loaded.
Page 124: Setting The Single-Step Sweep
Setting the Single-Step Sweep Procedure Press SWEEP to display the SWEEP menu. Press the Mode soft key to display the Sweep Mode menu. Selecting the Single-Sweep Mode Press the Single soft key. Explanation This function holds the changed settings and applies them when a trigger is received afterwards.
Page 125: Starting The Sweep Operation
Starting the Liner Sweep, Log Sweep, or Programmable Sweep The initial state is Waiting for Sweep Start. The GS820 will be able to receive the source trigger once the sweep operation is started from the Waiting for Sweep Start state. After receiving the source trigger the number of times equal to sweep count ×...
Page 126: Chapter 7 Measurement
• Auto Auto function mode: W hen the source function is switched, the measurement function automatically switches so that it is not the same function as the source function. However, if the limiter is activated, the GS820 measures the same function as the source function. • V-Meter Voltmeter mode: Generates 0 nA and measures the voltage.
Page 127: Selecting The Measurement Function
Selecting the Measurement Function Procedure Press V/I in the MEASURE section of the front panel. Voltage measurement (VM) and current measurement (IM) switch alternately each time you press this key. Explanation Display Example of Measurement Function Voltage measurement display Current measurement display You can switch the measurement function using the V/I key only when the measurement mode is set to fixed function mode (see section 7.1, “Selecting the Measurement Mode”). If another mode is selected, the measurement function is automatically selected, and you cannot change the function directly.
Page 128: Setting The Measurement Range And Turning Auto Range On/Off
Setting the Measurement Range and Turning Auto Range ON/OFF Procedure There are two measurement ranges: fixed range and auto range. Changing the Fixed Range Press the key under RANGE in the MEASURE section of the front panel to change the measurement range. Turning Auto Range ON/OFF Press SHIFT+ (AUTO) in the MEASURE section of the front panel. The auto range function turns ON and Auto appears in the display.
Page 129 7.3 Setting the Measurement Range and Turning Auto Range ON/OFF Auto Range If turned ON, the GS820 automatically selects and measures at the best suited resolution. However, the time needed to make the measurement will be longer than when fixed range is used. Note Auto range cannot be selected if the source range and the measurement range are the same (voltage source and voltage measurement or current source and current measurement). The...
Page 130 Setting the Integration Time Procedure Press CONFIG in the MEASURE section of the front panel to display the CONFIG menu. Press the IntgTime soft key to display the integration time setup screen. Use the rotary knob or numeric keys&< > to set the integration time. If you use the numeric keys, press the Enter soft key to confirm the setting. Explanation Integration Time The stability of measured values increases as the integration time is set longer.
Page 131: Setting The Measurement Delay
Setting the Measurement Delay Procedure Press CONFIG in the MEASURE section of the front panel to display the CONFIG menu. Press the M.Delay soft key to display the measurement delay setup screen. Use the rotary knob or numeric keys&< > to set the measurement delay. If you use the numeric keys, press the soft key for the desired unit to apply the setting.
Page 132: Selecting The Measurement Trigger
Selecting the Measurement Trigger Procedure Press CONFIG in the MEASURE section of the front panel to display the CONFIG menu. Press the MeasTrig soft key to display the Measure Trigger menu. Next 1/2 Press the soft key to see the next page of available choices. Press the soft key corresponding to the desired measurement trigger. Explanation The measurement trigger is a signal source used to start the measurement.
Page 133: Auto Zero Function
Explanation Auto Zero Function • On Enables the auto zero function. The GS820 measures the internal zero point for each measurement. The measured result is obtained by subtracting this value from the measured value canceling the A/D offset drift of the measurement circuit in the GS820. However, the measurement takes approximately twice as long as when the auto zero function is OFF, because the GS820 measures twice.
Page 134 Chapter 8 Computation Averaging Procedure Press CONFIG in the MEASURE section of the front panel to display the CONFIG menu. Press the Average soft key to display the Average menu. Turning Averaging Mode ON/OFF Press Average soft key to select ON or OFF. Setting the Average Count Press the Count soft key. Use the rotary knob or numeric keys&< > to set the average count. If you use the numeric keys, press the Enter soft key to confirm the setting.
Page 135: Chapter 8 Computation
NULL Computation Procedure Turning the NULL Computation ON/OFF Press SHIFT+CONFIG (NULL) in the MEASURE section of the front panel to display the NULL menu. Press NULL soft key to select ON or OFF. Setting the NULL Value Press the Null Value soft key to display the NULL value setup screen. Use the rotary knob or numeric keys&< > to set the NULL value. If you use the numeric keys, press a unit soft key or the Enter soft key to confirm the setting.
Page 136: Equation Computation
Equation Computation Procedure Turning the Computation ON/OFF Press MATH to display the MATH menu. Selecting the Computation Definition Use the rotary knob and < > to move the cursor (underline) vertically and select a computation definition file. Press the Select File soft key to confirm the computation definition file. An asterisk is placed by the confirmed computation definition file.
Page 137: User-Defined Computation
ML = V*I: C alculates the power. However, the power cannot be calculated correctly if the source function and measurement function are the same or when the GS820 is in voltmeter, ammeter, or resistance meter mode. Set the GS820 to voltage source and current measurement modes or current source and voltage measurement modes.
Page 138 8.3 Equation Computation <<Corresponding Command Mnemonic>> [CHANnel<n>]:CALCulate:MATH[:STATe] 1|0|ON|OFF [CHANnel<n>]:CALCulate:MATH:SELect <character string>|NONE [CHANnel<n>]:CALCulate:MATH:CATalog? [CHANnel<n>]:CALCulate:MATH:DELete <character string> [CHANnel<n>]:CALCulate:MATH:PARameter:A or B or C <real number> Index IM 765601-01E...
Page 139 Comparison Operation Procedure Turning the Comparison Operation ON/OFF Press SHIFT+MATH (COMPARE) to display the COMPARE menu. Press Compare soft key to select On or Off. Setting the Reference Values Press the Upper soft key to display the Upper setup screen. Use the rotary knob or numeric keys&<...
Page 140 8.4 Comparison Operation Explanation Comparison Operation Determines the magnitude relation between the displayed value and the reference values (upper and lower) and displays the result. The results of the comparison are displayed as follows: Comparison Result Signal That is Activated in Displayed Value Shown on the Display the External Output + oL High Displayed value > Upper High Upper ≥ Displayed value ≥ Lower Lower >...
Page 141 2 into variable Y X = ML // Substitute the measured value into variable X ML = Y // Substitute variable Y into the measured value X and Y are variables that users can use freely. Variables are held until the GS820 is turned OFF. As shown above, statements written in multiple lines are evaluated in order from the top. In the above example, the initial value of variable X is undefined causing the first result to be a undefined value. To prevent this from happening, we will show an example in which NAN (Not A Number) is substituted in the initial value of variable X.
Page 142 8.5 User-Defined Computation To write multiple lines of statements to be executed, write them as follows: if conditional expression then { A statement to be executed if true : if conditional expression then { A statement to be executed if true : } else { A statement to be executed if false : Settings can be changed by substituting values into variables that represent settings such as SL. For example, the following statement will cause the source level to be varied...
Page 143: Specifications
8.5 User-Defined Computation Specifications Built-in Variables <Variable> Meaning <Reference> <Substitution> A real number that represents the elapsed seconds from 00:00:00 at January 1, 1970 in 1-µs resolution. 0: voltage, 1: current Yes (setting changed immediately) Source function 0: 200-mV range to 3: 18-V range Yes (setting changed immediately) Source range 0: 200-nA range to 8: 3-A range Yes (setting changed immediately) Source level Yes (setting changed immediately) Source delay Yes (setting changed immediately) Pulse width Yes (setting changed immediately) Pulse base Measurement function 0: voltage, 1: current Yes (setting changed immediately) 0: 200-mV range to 3: 18-V range...
Page 144 8.5 User-Defined Computation Relational Operators < Returns 1 if the left expression is less than the right expression, otherwise returns 0. <= R eturns 1 if the left expression is less than or equal to the right expression, otherwise returns 0. == Returns 1 if the left expression is equal to the right expression, otherwise returns 0. != R eturns 1 if the left expression is not equal to the right expression, otherwise returns 0. >= R eturns 1 if the left expression is greater than or equal to the right expression, otherwise returns 0. > Returns 1 if the left expression is greater than the right expression, otherwise returns 0.
Page 145: Chapter 9 Storing Measured Results And Recalling Statistical Computation Values
Chapter 9 Storing Measured Results and Recalling Statistical Computation Values Storing Measurement Results Procedure Press SHIFT+STORE (CONFIG) to display the STORE menu. Setting the Store Count Press the Count soft key to display the store count setup screen. Use the rotary knob or numeric keys&< > to set the store count. If you use the numeric keys, press the Enter soft key to confirm the setting.
Page 146 Note GS820RAM is a volatile storage. When the GS820 is turned OFF, the stored files are lost. If you want to save the result files, copy them to a different directory before you turn the GS820 OFF. Stopping the Storage Operation After storing the specified number of points, the storage operation automatically stops.
Page 147: Values
Recalling Statistical Computation Values Procedure Press SHIFT+STORE(CONFIG) to display the STORE menu. Press the Recall soft key to display the statistical computation values on the measured values of the most recent stored result. Explanation Statistical Computation Parameters The following statistical computation parameters are displayed.CH1 and CH2 are displayed simultaneously.
Page 148 Transmits the sweep start of the GS820. This is the same signal as START OUT of the output terminal for synchronous operation (SYNC OUT) on the rear panel. TrigBNC • Input Receives triggers. This is the same signal as TRIG IN of the input terminal for synchronous operation (SYNC IN) on the rear panel. The falling edge functions in the same manner as the TRIG key. • Output Transmits the trigger of the GS820. This is the same signal as TRIG OUT of the output terminal for synchronous operation (SYNC OUT) on the rear panel. Index IM 765601-01E 10-1...
Page 149 10.1 Setting the BNC I/O Terminal (START IN/OUT and TRIGGER IN/OUT) Input Section (TRIGGER IN and START IN) Input level: TTL level Input logic: Negative logic, falling edge Minimum pulse width: 10 µs or greater • Input Circuit +5 V 10 kΩ 100 Ω Output Section (TRIGGER OUT and START OUT) Output level: TTL level Output logic: Negative logic, falling edge Minimum pulse width: Approx. 10 µs •...
Page 150 10.2 Pin Assignments of the External I/O Connector (EXT I/O) There are no I/O settings for the external I/O connector (EXT I/O) of the rear panel that you specify on the GS820 screen. Make connections according to the pin assignments given below. Input Section Input level: TTL level Input logic: Negative logic (interlock input) • Input Circuit +5 V 10 kΩ 100 Ω Output Section...
Page 151 10.2 Pin Assignments of the External I/O Connector (EXT I/O) Pin Assignments 765601/765611 765602/765612 Signal Names and Functions 765601/765611 765602/765612 Signal Signal Name Function Type Active Pin No. Pin No. CH1 END CH1 comparison complete (low at measurement end, high at Pulse Pin 2 Pin 6 the next measurement start) CH1 comparison result LOW (measured result < min. value) CH1 LOW Level Pin 3 Pin 7...
Page 152 10.2 Pin Assignments of the External I/O Connector (EXT I/O) 765601/765611 765602/765612 Signal Signal Name Function Type Active Pin No. Pin No. DI10 Digital input Level Pin 27 DI11 Digital input Level Pin 28 DI12 Digital input Level Pin 29 DI13 Digital input Level...
Page 153: Synchronous Operation
• When using a 2-wire straight cable: Only the trigger is synchronized. • When using a 4-wire straight cable: Start, trigger, and auxiliary trigger are synchronized. • When using a 6-wire straight cable: S tart, trigger, auxiliary trigger, and output state are synchronized. If you use 6-wire straight cables between GS820s and set the highest level GS820 to master and other lower level GS820s to slaves, all channels of the connected GS820s are synchronized. For the procedure to set master and slave, see section 10.4, “Setting the Synchronization Mode between Units (Master and Slave).” You can also set synchronous or asynchronous between channels of each GS820. For the procedure...
Page 154 A control input for CH1 zero source. This signal functions in the same way as the ZERO key. The zero source turns ON when a falling edge is applied, and the output turns ON when a rising edge is applied. ZERO OUT (Zero Source Control Output) Transmits the zero source condition of CH1. Transmits a high signal if the output is OFF or ON and a low signal if the zero source is ON. Note GS820 GS820 GS820 IN OUT IN OUT IN OUT SYNC...
Page 155: Setting The Synchronous Mode Between Units (Master And Slave)
On the Operation menu, press the Master or Slave soft key. Explanation In synchronous operation, the highest level GS820 is set to master and all subsequent GS820s to slave. The master and multiple slave units are synchronized to CH1 of the master unit.
Page 156 10.5 Setting the Auxiliary Trigger Source (AUX OUT) Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the External I/O soft key to display the External I/O menu. Setting the Auxiliary Trigger Output Source Press the Aux Out soft key to display the Auxiliary Out menu. Press the soft key corresponding to the desired auxiliary trigger output source. Explanation Select the auxiliary trigger output source from the four types below. For details on the auxiliary trigger source, see “Trigger Block Diagram” in section 2.6, “Triggering” (page...
Page 157: Channel Expansion Function
10.6 Channel Expansion Function Procedure Press SYNC on the master unit of the synchronous operation to display the SYNC menu. Press Expand soft key to select On or Off. Explanation Preparations Necessary before Using the Channel Expansion Function The IP address (see section 13.4, “Viewing the Network Settings”) of slave units must be specified on the master unit that has completed the synchronous operation setting. Create a file named NodeList.txt in the SETUP directory in the GS820ROM on the master unit (see “USB Storage Function” on page 2-36) Write the IP address of each slave unit separating each IP address with a line feed (CR+LF) in the NodeList.txt file. Up...
Page 158: Chapter 11 Other Functions
Chapter 11 Other Functions 11.1 Saving the Setup Data Procedure Press SETUP to display the saved files and the SETUP menu. Press the Save Setup soft key to display the area for saving the setup data. • RamDisk: the volatile storage (GS820RAM) • Setup1 to Setup4: the non-volatile storage (GS820ROM) Saving to the Volatile Storage (GS820RAM) Press the RamDisk soft key.
Page 159 11.1 Saving the Setup Data Explanation Saving to the Volatile Storage (GS820RAM) A setup file (Setup.txt) is saved in the GS820RAM. If a setup file already exists, it is overwritten. This setup file is used to transfer the file to a PC. Saving to the Non-Volatile Storage (GS820ROM) A setup file (Setup1 to Setup4.txt) is saved in the SETUP folder in the GS820ROM. If a setup file with the same number already exists, it is overwritten. Note • The setup file is a text file containing a sequence of command mnemonics. You can edit the contents on your PC.
Page 160: Loading The Setup Data
Press the Load Setup soft key. The setup file is loaded, and the display returns to the numeric display. Explanation A saved setup file can be loaded to restore the settings. Note Loading the Default.txt file sets the GS820 to factory default settings. For details on the Default. txt file, see appendix 18.6, “Contents of the Factory Default Setup File (Default.txt).” <<Corresponding Command Mnemonic>> :SYSTem:SETup:LOAD <character string> *RCL 1|2|3|4...
Page 161: Selecting The Settings Applied At Power-On
Procedure Press SETUP to display the SETUP menu. Use the rotary knob and < > to move the cursor (underline) vertically and select a setup file that is applied when the GS820 is turned ON. View soft key allows you to view the contents of the selected setup file. Press the PowerOn Setup soft key. An asterisk is appears by the selected setup file.
Page 162 You can select the display brightness in the range of 1 to 4. The darkest setting is 1, and the brightest setting is 4. Turning the Display OFF Turning the display OFF extends the life of the display and suppresses the noise that the display generates. In addition, the communication speed improves slightly. Note The settings are retained even if the GS820 is turned OFF. <<Corresponding Command Mnemonic>> :SYSTem:DISPlay[:STATe] 1|0|ON|OFF :SYSTem:DISPlay:BRIGht <integer>|MINimum|MAXimum|UP|DOWN Index IM 765601-01E...
Page 163: Selecting The Csv File Format
11.5 Selecting the CSV File Format Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the CSV Setting soft key to display a menu for selecting the CSV file format. Press the DecPoint or Separate soft key to select the CSV file format. The two soft keys are linked.
Page 164: Turning The Beep Sound On/Off
11.6 Turning the Beep Sound ON/OFF Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Next 1/2 soft key. Press Beep soft key to select On or Off. Explanation If the beep sound is turned ON, a beep sound is generated such as when an error occurs during operation. Note The setting is retained even if the GS820 is turned OFF. <<Corresponding Command Mnemonic>> :SYSTem:BEEPer 1|0|ON|OFF Index IM 765601-01E 11-7...
Page 165: Error Log Display
Descriptions and Corrective Actions.” Note • The error memory is also cleared if the error is read using a communication command “ :SYSTem:ERRor? ” or if the GS820 is turned OFF. You can also clear the error memory by sending the “ *CLS ” communication command. • If the error memory becomes full, “− 350 : Queue overflow ” is entered as the last error indicating that any addition errors will be discarded. If the error memory is cleared, the ERROR key turns OFF.
Page 166: App
11.8 Key Lock Procedure Turning the Key Lock ON Press SHIFT + • (KEY LOCK). The key lock turns ON, and the KEY LOCK indicator to the left of the display illuminates. After the key lock is turned ON, all keys are disabled except for the power switch and the SHIFT + • (KEY LOCK) key. Turning the Key Lock OFF Press SHIFT + • (KEY LOCK) when key lock is ON. The key lock turns OFF, and the KEY LOCK indicator turns OFF. All keys are enabled. Explanation <<Corresponding Command Mnemonic>> :SYSTem:KLOCk 1|0|ON|OFF Index IM 765601-01E 11-9...
Page 167: Selecting The Loading Data Type For The Communication Command
Press the BinReply soft key, then select Bin or Asc. Explanation Normally this setting is not available. With the channel expansion function, if you have a GS820 of firmware revision 1.09 or later as a slave device and a GS820 of firmware revision 1.08 or earlier as the master device, use this setting to specify a data type of ASCII.
Page 168: Usb Interface Functions And Specifications
PC (see section 4.6, “USB Storage Function”). Command Control Function by Way of USB-TMC The GS820 can be controlled using commands from a VISA (Virtual Instrument Software Architecture) library. A VISA library must be installed in your PC in advance to perform command control by way of USB-TMC. USB Interface Specifications Electrical and mechanical specifications: Conforms to USB Rev. 2.0...
Page 169: Selecting The Usb Interface Function
12.2 Selecting the USB Interface Function Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Remote I/F soft key to display the Remote I/F menu. Selecting the USB Interface Function Press the USB soft key to display the USB Mode menu. Press the soft key corresponding to the desired USB interface function. Explanation Selecting the USB Interface Function Storage Select this to use the USB storage function (see section 4.6, “USB Storage Function”). USB-TMC Select this to perform command control from a VISA library. <<Corresponding Command Mnemonic>>...
Page 170: Viewing The Visa Setup Information
12.3 Viewing the VISA Setup Information Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Remote I/F soft key to display the Remote I/F menu. Viewing the VISA Information Press the VISA Info soft key to display the network setup information that is necessary for communications using a VISA library. Explanation VISA information contains the character string that is passed to open a device (viOpen()) using a VISA library.
Page 171: Ethernet Interface Functions And Specifications
FTP server function: A n anonymous FTP server at port 21 that allows up to five clients to connect. HTTP server (Web server) function: A function that enables various information to be displayed and performs remote control of the GS820 through port 80 using a Web browser. Ethernet Interface Specifications Connector type: RJ-45 Number of ports: Electrical and mechanical specifications: Conforms to IEEE 802.3...
Page 172: Connecting To The Network
G E R IN /O ETHERNET Illuminates when the link between the 100BASE-TX port on the GS820 and the connected device is established and communication is mutually possible. RJ-45 modular jack Connection Cable Use either of the following cables to make the connection.
Page 173: Setting The Network (Tcp/Ip)
13.3 Setting the Network (TCP/IP) Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Remote I/F soft key to display the Remote I/F menu. Press the LAN soft key to display the LAN menu. Turning DHCP ON/OFF Press DHCP soft key to select On or Off. Setting the IP Address You can set the IP address only if DHCP is OFF. Press the IP Address soft key to display the IP address setup screen. Press the numeric keys to set the IP address.
Page 174 Press the Term soft key to display the Terminator menu. Press the soft key corresponding to the desired terminator. Explanation To use the network function of the GS820, the TCP/IP parameters must be configured. DHCP (Dynamic Host Configuration Protocol) DHCP is a protocol that allocates settings that are temporarily needed to PCs connecting to the network. If DHCP is turned ON, the following settings will be automatically...
Page 175 • This parameter is automatically assigned in environments using DHCP. Transmission Terminator You can set the terminator that is used to send data from the command control server at port 7655. • Select CR, LF, or CR+LF. • The GS820 handles CR, LF, and CR+LF as a terminator when receiving data. Note • If you change the network settings, you may need to power cycle the GS820. • Network parameters such as the IP address must be specified also on your PC. For details on the setup, check the manual (help) for your PC or consult your network administrator. <<Corresponding Command Mnemonic>>...
Page 176: Viewing The Network Settings
If the settings have been changed after the GS820 was turned ON, the settings before the change are displayed until the power is cycled. Explanation You can view the following network settings. • MAC address A unique 48-bit address assigned to the GS820. • IP address (see section 13.3) • Subnet mask (see section 13.3) • Default gateway (see section 13.3) Note If DHCP is enabled, “0.0.0.0” will be displayed for the IP address, subnet mask, and default gateway until the addresses are assigned.
Page 177: Web Server Function
13.5 Web Server Function The Web server function on the GS820 links the Web browser on your PC to the GS820 and enables the GS820 to be controlled from the Web browser window. The following functions are available. • Remote panel function Set or control the GS820 using the keys on the remote panel.
Page 178 Logging into the Web Server (GS820) Start Internet Explorer. Type the IP address name of the GS820 in the Address box, and press ENTER. IP address example http://10.0.159.30/ If a connection to the GS820 Web server is established, the top page of the GS820 Web Service is displayed.
Page 179 Click to reflect the operations carried out on the GS820 panel. The GS820 can be controlled in the same manner as using the actual keys on the GS820. Point the cursor to the desired key and click. The operation on the remote panel is immediately applied to the GS820.
Page 180 Response display area You can send communication commands from the command control window that is displayed in the remote panel to set or query the GS820. Type the communication command in the command transmission area, and click Submit. The response to the transmitted communication command is displayed in the response display area.
Page 181 13.5 Web Server Function FTP Server Function Click the word “FTP” in the Web server window to display the FTP page. The GS820RAM folder and GS820ROM folder that are displayed are linked to the volatile storage (GS820RAM) and non-volatile storage (GS820ROM) on the GS820. The files in the GS820 storage can be viewed, duplicated, deleted, or transferred to your PC from the remote panel. For details on the volatile storage (GS820RAM) and non-volatile storage (GS820ROM), see “USB Storage Function” on page 2-36. Index IM 765601-01E...
Page 182: Chapter 14 Gp-Ib Interface
The settings selected in section 11.3, “Selecting the Settings Applied at Power ON.” If you issue (13) Device condition after a successful calibration the *RST common command, the GS820 always The settings return to the conditions that existed returns to the factory default settings. before the calibration, measurements are...
Page 183 14.1 About the IEEE 488.2-1992 Standard (18) The length of the *RDT and *RDT? resource names *RDT and *RDT? are not supported. (19) The change in the status due to *RST, *LRN?, *RCL, and *SAV *RST, *RCL, and *SAV See section 16.2.14, “Common Commands.” *LRN? This common command is not supported.
Page 184: Gp-Ib Interface Functions And Specifications
Listener Basic listener capability, unlisten on MTA (My Talk locked. Address), and no listen- • Settings entered in local mode are retained even only capability. Service request SR1 Full service request when the GS820 switches to remote mode. capability Remote local RL1 Full remote/local When Switching from Remote to Local Mode capability Parallel polling PP0 No parallel polling Pressing SHIFT (LOCAL) when the instrument is in the...
Page 185: Connecting The Gp-Ib Cable
14.3 Connecting the GP-IB Cable GP-IB cable Precautions to Be Taken When The GP-IB available on the GS820 is a 24-pin Connecting the Cable • Firmly tighten the screws on the GP-IB cable connector that conforms to the IEEE St’d 488-1987. Use a GP-IB cable that conforms to this standard. connector. • Multiple devices can be connected to a single GP-IB system. However, no more than 15 devices (including Connection Procedure the controller) can be connected to a single system. Connect the cable as shown below.
Page 186: Setting The Gp-Ib Address
If you use the numeric keys, press the Enter soft key to confirm the setting. Explanation GP-IB Address Each device that can be connected via GP-IB has a unique address within the GP-IB system. This address is used to distinguish the device from others. If you are connecting the GS820 to a controller such as a PC, select the GP-IB address of the GS820 on the PC side. Selectable range: 0 to 30 <<Corresponding Command Mnemonic>> :SYSTem:COMMunicate:GPIB:ADDRess <integer>...
Page 187: Responses To Interface Messages
14.5 Responses to Interface Messages What Are Interface Messages Responses to Interface Messages Interface messages are also referred to as interface Responses to Uni-Line Messages • IFC commands or bus commands. They are commands that are issued by the controller. They are classified as Clears the talker and listener functions.
Page 188: Interface Functions And Specifications
• When Switching from Remote to Local Mode standard (for the 9-pin interface of Pressing SHIFT (LOCAL) when the instrument is in the EIA-232 (RS-232) standard) the remote mode causes the instrument to switch to Connection: Point-to-point the local mode. The GS820 switches to local mode Transmission mode: Full duplex when it receives a “:SYSTem:LOCal” command from Synchronization: Start-stop synchronization your PC. Baud rate: 9 600, 14400, 19200, 38400, • T he remote indicator to the left of the display...
Page 189: Connection Via The Rs-232 Interface
15.2 Connection via the RS-232 Interface If you connect the GS820 to your PC, you will need to set the GS820 so that the handshaking method, baud rate, data format, and other parameters match with those on your PC. For details on the settings, see the following pages. In addition, use an interface cable that meets the specifications of the GS820.
Page 190 15.2 Connection via the RS-232 Interface Signal Wiring Example The pin numbers are for the 9-pin connector. In general, use a cross cable. GS820 GS820 CTS/RTS handshaking CTS/RTS handshaking is not possible is possible Index IM 765601-01E 15-3...
Page 191: Handshaking
15.3 Handshaking When using the serial (RS-232) interface for transferring data, it is necessary to synchronize the equipment so that data is not transmitted in excess of the receive buffer on the receiving end (overrun). This procedure is called handshaking. The GS820 can use any of the three methods below. Match the setting with your PC. No Handshaking If the entire command sequence fits in the receive buffer (64 K on the GS820) or if a query command is included in the middle of the command sequence, overrun will not occur.
Page 192: Setting The Rs-232 Interface
15.4 Setting the RS-232 Interface Procedure Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Remote I/F soft key to display the Remote I/F menu. Press the RS232 soft key to display the RS-232 interface menu. Selecting the Baud Rate Press the BaudRate soft key to display the baud rate menu. Press the soft key corresponding to the desired baud rate.
Page 193 Specify the following settings if you want to use a controller to set information that can be set using the front panel keys on the GS820 or if you want to transmit the setup data or output waveform data to the controller.
Page 194: Chapter 16 Communication Commands
Chapter 16 Communication Commands 16.1 Program Format 16.1.1 Symbols Used in the Syntax 16.1.2 Messages The following table indicates symbols that are used in Messages the syntax mainly in section 16.2. For details on the Messages are used to exchange information between data, see pages 16-5 and 16-6. the controller and the instrument. Messages that are sent from the controller to the instrument are called Symbol Meaning Example...
Page 195: Response Messages
16.1 Program Format <PMT> Response Messages <PMT> is a program message terminator. The following Data that are sent from the instrument to the controller three types are available. are called response messages. The response message • NL (New Line) format is shown below. Same as LF (Line Feed). ASCII code “0AH” • ^END <Response message unit> <PMT>...
Page 196 16.1 Program Format Precautions to Be Taken when 16.1.3 Commands Transferring Messages • If a program message that does not contain a query Commands There are three types of commands (program headers) is sent, the next program message can be sent at any time. that are sent from the controller to the instrument. They • If a program message that contains a query is sent, differ in their program header formats.
Page 197 16.1 Program Format When Concatenating Commands When Separating Commands with <PMT> Command Group If a terminator is used to separate two commands, A command group is a group of commands that have each command is a separate message. Therefore, the common compound headers arranged in a hierarchy.
Page 198 16.1 Program Format 16.1.4 Response 16.1.5 Data When the controller sends a message unit that has Data a question mark in its program header (query), the Data contain conditions and values that are written instrument returns a response message to the query. after the header. A space is used to separate the header and data. Data is classified as follows: Notation Meaning...
Page 199 16.1 Program Format <Block Data> <Block data> is data containing 8-bit arbitrary values. It is only used in response messages on the GS820. The syntax is as follows: Syntax Example #N<N-digit decimal number><data byte sequence> #800000010ABCDEFGHIJ • #N Indicates that the data is <Block data>. “N” indicates the number of succeeding data bytes (digits) in ASCII code characters. • <N-digit decimal number> Indicates the number of bytes of data (example: 00000010 = 10 bytes). • <Data byte sequence> Expresses the actual data (example: ABCDEFGHIJ). • Data is comprised of 8-bit values (0 to 255). This means that the ASCII code “0AH,” which stands for “NL,” can also be a code used for data. Hence, care...
Page 200: Commands
16.2 Commands 16.2.1 List of Commands Command Function Page Output Commands (OUTPut Group) [:CHANnel<n>] :OUTPut Sets the output state (ON/OFF/Zero) or queries the current setting. 16-13 [:STATe]/? Sweep Commands (SWEep Group) [:CHANnel<n>] :SWEep Sets the sweep start (external, auxiliary trigger, Timer1, Timer2, or :TRIGger/? measurement end) or queries the current setting. 16-14 :AUXiliary Sets the auxiliary trigger polarity (normal or inverted) or queries the :POLarity/? current setting. 16-14 :COUNt/? Sets the sweep repeat count or queries current setting. 16-14 Source Commands (SOURce Group) [:CHANnel<n>]...
Page 201 16.2 Commands Command Function Page :SWEep Sets the sweep type (linear or log) or queries the current setting. 16-18 :SPACing/? :STARt/? Sets the voltage sweep start value or queries the current setting. 16-18 :STOP/? Sets the voltage sweep stop value or queries the current setting. 16-19 :STEP/? Sets the linear voltage sweep resolution or queries the current setting. 16-19 :POINts/? Sets the number of divisions of the voltage log sweep or queries the...
Page 202 16.2 Commands Command Function Page Sets the measurement function (voltage or current) or queries the :FUNCtion/? current setting. 16-26 [:VOLTage] :RANGe/? Sets the voltage measurement range or queries the current setting. 16-26 Turns ON/OFF the auto measurement range or queries the current :AUTO/? setting. 16-26 [:CURRent] :RANGe/? Sets the current measurement range or queries the current setting. 16-26 Turns ON/OFF the auto measurement range or queries the current :AUTO/? setting.
Page 203: Data
16.2 Commands Command Function Page Measured Value Read Commands (INITiate, FETCh, READ, and MEASure Groups) [:CHANnel<n>] :INITiate Clears the measured result. 16-31 :FETCh? Queries the measured result. 16-31 :READ? Clears the measured result and queries the measured result. 16-31 :MEASure? Clears the measured result, generates a trigger, and queries the measured result.
Page 204 16.2 Commands Command Function Page System Commands (SYSTem Group) :SYSTem :DISPlay Turns ON/OFF the display or queries the current setting. 16-37 [:STATe]/? :BRIGht/? Sets the display brightness or queries the current setting. 16-37 :TEXT/? Sets and displays the user message or queries the current setting. 16-37 :CLEar Clears the user message display. 16-37 Switches the display (CH1 display, CH2 display, or both CH display).
Page 205 16.2 Commands Command Function Page Status Commands (STATus Group) :STATus :SOURce :CONDition? Queries the source event condition register. 16-42 :EVENt? Queries the source event register and clears the register. 16-42 :ENABle/? Sets the source event enable register or queries the current setting. 16-42 :SENSe :CONDition?
Page 206: Output Commands (Output Group)
16.2 Commands 16.2.2 Output Commands (OUTPut Group) [:CHANnel<n>]:OUTPut[:STATe]/? Function Sets the output state (ON/OFF/Zero) or queries the current setting. [:CHANnel<n>]:OUTPut[:STATe] Syntax 1|0|ON|OFF|ZERO 1 or ON Turns the output ON. 0 or OFF Turns the output OFF. ZERO Sets the output to zero. [:CHANnel<n>]:OUTPut[:STATe]? → 1 The output is ON. → 0 The output is OFF. → ZERO The output is zero. :OUTP ON Example :CHAN2:OUTP:STAT ZERO :CHAN1:OUTP:STAT? Index IM 765601-01E 16-13...
Page 207: Sweep Commands (Sweep Group)
16.2 Commands 16.2.3 Sweep Commands (SWEep Group) [:CHANnel<n>]:SWEep:COUNt/? [:CHANnel<n>]:SWEep:TRIGger/? Function Sets the sweep repeat count or queries current Function Sets the sweep start (external, auxiliary trigger, setting. Timer1, Timer2, or measurement end) or queries [:CHANnel<n>]:SWEep:COUNt Syntax the current setting. <integer>|INFinity|MINimum|MAXimum [:CHANnel<n>]:SWEep:TRIGger Syntax <integer> Specify any repeat count. EXTernal|AUXiliary|TIMer1|TIMer2| INFinity Sets the count to infinity. SENSe MINimum Sets the count to minimum (= 1). EXTernal Selects external start. MAXimum Sets the count to maximum (= 1000). AUXiliary Selects auxiliary trigger. [:CHANnel<n>]:SWEep:COUNt? TIMer1 Selects Timer1 (constant period). → <integer> Current repeat count TIMer2 Selects Timer2 (constant period).
Page 208: Source Commands (Source Group)
16.2 Commands 16.2.4 Source Commands (SOURce Group) [:CHANnel<n>]:SOURce:TRIGge: [:CHANnel<n>]:SOURce:RESPonse/? AUXiliary:POLarity/? Function Sets the response mode (normal or stable) or Function Sets the auxiliary trigger polarity (normal or queries the current setting. inverted) or queries the current setting. [:CHANnel<n>]:SOURce:RESPonse Syntax NORMal|STABle [:CHANnel<n>]:SOURce:TRIGge: Syntax NORMal Selects normal. AUXiliary:POLarity NORMal|INVerted STABle Selects stable. NORMal Selects normal (falling edge). INVerted Selects inverted (rising edge). [:CHANnel<n>]:SOURce:RESPonse? → NORM Set to normal. [:CHANnel<n>]:SOURce:TRIGge: → STAB Set to stable. AUXiliary:POLarity? → NORM Set to normal (falling edge).
Page 209 → 18E+0 Set to 18 V range (765601/765602). → NONE Pattern file not selected. → 20E+0 Set to 20 V range (765611/765612). :SOUR:LIST:SEL "Test1.csv" Example → 50E+0 Set to 50 V range (765611/765612). :CHAN2:SOUR:LIST:SEL "Test2.csv" :SOUR:VOLT:RANG 2E+0 Example :CHAN1:SOUR:LIST:SEL? :CHAN2:SOUR:VOLT:RANG 7V :CHAN1:SOUR:VOLT:RANG MAX :CHAn1:SOUR:VOLT:RANG? Description If VOLTage is omitted, the GS820 assumes that the present source function was specified. IM 765601-01E 16-16...
Page 210 Example Example :CHAN2:SOUR:VOLT:RANG:AUTO 0 :CHAN2:SOUR:VOLT:PROT:STAT 0 :CHAN1:SOUR:VOLT:RANG:AUTO? :CHAN1:SOUR:VOLT:PROT:STAT? Description If VOLTage is omitted, the GS820 assumes that Description If VOLTage is omitted, the GS820 assumes that the present source function was specified. the present limit function was specified. [:CHANnel<n>]:SOURce[:VOLTage]: [:CHANnel<n>]:SOURce[:VOLTage]:...
Page 211 :CHAN2:SOUR:VOLT:SWE:SPAC LIN :SOUR:VOLT:PROT:UPP 2.0 :CHAN1:SOUR:VOLT:SWE:SPAC? Example :CHAN2:SOUR:VOLT:PROT:UPP 2.5V Description If VOLTage is omitted, the GS820 assumes that :CHAN1:SOUR:VOLT:PROT:UPP? the present source function was specified. Description If VOLTage is omitted, the GS820 assumes that [:CHANnel<n>]:SOURce[:VOLTage]: the present limit function was specified.
Page 212 Example Example :CHAN2:SOUR:VOLT:SWE:STOP 9.5V :CHAN2:SOUR:VOLT:SWE:POIN MAX :CHAN1:SOUR:VOLT:SWE:STOP? :CHAN1:SOUR:VOLT:SWE:POIN? Description If VOLTage is omitted, the GS820 assumes that Description If VOLTage is omitted, the GS820 assumes that the present source function was specified. the present source function was specified. [:CHANnel<n>]:SOURce[:VOLTage]: [:CHANnel<n>]:SOURce[:VOLTage]:...
Page 213 :CHAN2:SOUR:VOLT:PULS:BASE -250mV :CHAN2:SOUR:CURR:RANG MAX :CHAN1:SOUR:VOLT:PULS:BASE? :CHAN1:SOUR:CURR:RANG 20uA :CHAN1:SOUR:CURR:RANG? Description If VOLTage is omitted, the GS820 assumes that the present source function was specified. Description If CURRent is omitted, the GS820 assumes that the present source function was specified. [:CHANnel<n>]:SOURce[:VOLTage]:ZERO: IMPedance/? [:CHANnel<n>]:SOURce[:CURRent]:...
Page 214 :CHAN2:SOUR:CURR:PROT:LINK 0 :CHAN1:SOUR:CURR:PROT:LINK? In fixed range mode, it is set to the maximum value within the range. Description If CURRent is omitted, the GS820 assumes that In auto range mode, it is set to the present limit function was specified. 3.2 A (765601/765602) or 1.2 A (765611/765612).
Page 215 :CHAN2:SOUR:CURR:SWE:SPAC LIN :SOUR:CURR:PROT:UPP 2.5 :CHAN1:SOUR:CURR:SWE:SPAC? Example :CHAN2:SOUR:CURR:PROT:UPP 2.0A Description If CURRent is omitted, the GS820 assumes that :CHAN1:SOUR:CURR:PROT:UPP? the present source function was specified. Description If CURRent is omitted, the GS820 assumes that [:CHANnel<n>]:SOURce[:CURRent]:SWEep the present limit function was specified.
Page 216 Example Example :CHAN2:SOUR:CURR:SWE:STOP 1.5A :CHAN2:SOUR:CURR:SWE:POIN MAX :CHAN1:SOUR:CURR:SWE:STOP? :CHAN1:SOUR:CURR:SWE:POIN? Description If CURRent is omitted, the GS820 assumes that Description If CURRent is omitted, the GS820 assumes that the present source function was specified. the present source function was specified. [:CHANnel<n>]:SOURce[:CURRent]: [:CHANnel<n>]:SOURce[:CURRent]:...
Page 217 [:CHANnel<n>]:SOURce[:CURRent]:PULSe: BASE? → <current> T he present current pulse base value. :SOUR:CURR:PULS:BASE 0.75 Example :CHAN2:SOUR:CURR:PULS:BASE 5mA :CHAN1:SOUR:CURR:PULS:BASE? Description If CURRent is omitted, the GS820 assumes that the present source function was specified. [:CHANnel<n>]:SOURce[:CURRent]:ZERO: IMPedance/? Function Sets the impedance (high or low) for current zero source or queries the current setting. [:CHANnel<n>]:SOURce[:CURRent]:ZERO: Syntax IMPedance HIGH|LOW HIGH Sets to high impedance.
Page 218: Measurement Commands (Sense Group)
16.2 Commands 16.2.5 Measurement Commands (SENSe Group) [:CHANnel<n>]:SENSe:TRIGger/? [:CHANnel<n>]:SENSe[:STATe]/? Function Sets the measurement trigger source (source Function Turns ON/OFF the measurement function or change, sweep end, auxiliary trigger, Timer1, 2, or queries the current setting. immediate) or queries the current setting. [:CHANnel<n>]:SENSe[:STATe] 1|0|ON| Syntax [:CHANnel<n>]:SENSe:TRIGger SOURce| Syntax SWEep|AUXiliary|TIMer1|TIMer2| 1 or ON T urns the measurement function ON. IMMediate 0 or OFF T urns the measurement function SOURce Selects source change.
Page 219 Set to 2 mA range. :CHAN2:SENS:VOLT:RANG MAX → 20E-3 Set to 20 mA range. :CHAN1:SENS:VOLT:RANG 200mV → 200E-3 Set to 200 mA range. :CHAN1:SENS:VOLT:RANG? → 600E-3 Set to 0.5 A range (765611/765612). Description If VOLTage is omitted, the GS820 assumes that → 1.2E+0 S et to 1 A range. the present measurement function was specified. → 3.2E+0 Set to 3 A range (765601/765602). :SENS:CURR:RANG 1.2 Example :CHAN2:SENS:CURR:RANG MAX :CHAN2:SENS:CURR:RANG 20mA :CHAN2:SENS:CURR:RANG? Description If CURRent is omitted, the GS820 assumes that the present measurement function was specified.
Page 220 Example Example :CHAN2:SENS:CURR:RANG:AUTO 0 :CHAN2:SENS:RES:RANG:AUTO 0 :CHAN1:SENS:CURR:RANG:AUTO? :CHAN1:SENS:RES:RANG:AUTO? Description If CURRent is omitted, the GS820 assumes that Description If RESistance is omitted, the GS820 assumes that the present measurement function was specified. the present measurement function was specified. [:CHANnel<n>]:SENSe:[:RESistance]: [:CHANnel<n>]:SENSe:NPLC/?
Page 221 16.2 Commands [:CHANnel<n>]:SENSe:DELay/? [:CHANnel<n>]:SENSe:ZERO:AUTO/? Function Sets the measurement delay or queries the Function Turns ON/OFF the auto zero function or queries current setting. the current setting. [:CHANnel<n>]:SENSe:DELay [:CHANnel<n>]:SENSe:ZERO:AUTO Syntax Syntax <time>|MINimum|MAXimum 1|0|ON|OFF <time> S pecify any measurement delay 1 or ON T urns the auto zero function ON. 0 or OFF T urns the auto zero function OFF. value. MINimum Sets the minimum value (= 0 s). [:CHANnel<n>]:SENSe:ZERO:AUTO? MAXimum S ets the maximum value (= 3600 s). → 1 The auto zero function is ON. → 0 The auto zero function is OFF. [:CHANnel<n>]:SENSe:DELay? → <time>...
Page 222: Computation Commands (Calculate Group)
16.2 Commands 16.2.6 Computation Commands (CALCulate Group) [:CHANnel<n>]:CALCulate:NULL[: [:CHANnel<n>]:CALCulate:MATH: STATe]/? SELect/? Function Turns ON/OFF the NULL computation function or Function Sets the equation definition file or queries the queries the current setting. current setting. [:CHANnel<n>]:CALCulate:NULL[:STATe] [:CHANnel<n>]:CALCulate:MATH:SELect Syntax Syntax 1|0|ON|OFF <character string> 1 or ON T urns the NULL computation function <character string> S pecify any MATH definition file name. 0 or OFF T urns the NULL computation function NONE M ATH definition file not selected OFF.
Page 223 16.2 Commands [:CHANnel<n>]:CALCulate:MATH: [:CHANnel<n>]:CALCulate:MATH:LIMIT: PARameter:B/? UPPer/? Function Sets equation parameter B or queries the current Function Sets the upper limit for comparison or queries the setting. current setting. [:CHANnel<n>]:CALCulate:MATH: [:CHANnel<n>]:CALCulate:MATH:LIMIT: Syntax Syntax PARameter:B <real number> UPPer <real number> <real number> S pecify any parameter B value. <real number> S pecify any upper limit for [:CHANnel<n>]:CALCulate:MATH: comparison. PARameter:B? [:CHANnel<n>]:CALCulate:MATH:LIMIT: → <real number> T he present parameter B UPPer? → <real number> T he present upper limit for value.
Page 224: Measured Value Read Commands (Initiate, Fetch, Read, Measure Group)
16.2 Commands 16.2.7 Measured Value Read Commands (INITiate, FETCh, READ, MEASure Group) For the procedure on how to use the measured value read commands, see the sample programs. [:CHANnel<n>]:INITiate [:CHANnel<n>]:MEASure? Function Clears the measured result. Function Clears the measured result, generates a trigger, [:CHANnel<n>]:INITiate [DUAL] Syntax and queries the measured result. [:CHANnel<n>]:MEASure? [DUAL] DUAL Requests the command on two channels. Syntax If DUAL is not specified, the request is DUAL Requests the command on two channels.
Page 225: Trigger Commands (Start And Trigger Groups)
16.2 Commands 16.2.8 Trigger Commands (STARt and TRIGger Groups) :STARt Function Generates a sweep start. :STARt Syntax :STAR Example :TRIGger Function Generates a trigger (equivalent to *TRG). :TRIGger Syntax :TRIG Example :TRIGger:AUXiliary Function Generates an auxiliary trigger. :TRIGger:AUXiliary Syntax :TRIG:AUX Example :TRIGger:HOLD/? Function Turns ON/OFF the hold off function or queries the current setting. :TRIGger:HOLD 1|0|ON|OFF Syntax 1 or ON Enables trigger hold. 0 or OFF Releases trigger hold.
Page 226: Store/Recall Commands (Trace Group)
16.2 Commands 16.2.9 Store/Recall Commands (TRACe Group) :TRACe:POINts/? :TRACe[:STATe]/? Function Sets the storage count or queries the current Function Turns ON/OFF the storage function or queries the setting. current setting. :TRACe:POINts Syntax :TRACe[:STATe] 1|0|ON|OFF Syntax <integer>|MINimum|MAXimum 1 or ON Starts the storage operation. <integer> Specify any storage count. 0 or OFF Stops the storage operation. MINimum Sets the minimum value (= 1). :TRACe[:STATe]? MAXimum S ets the maximum value (= 100000). → 1 Storage operation in progress. :TRACe:POINts? → 0 S torage operation not in progress. → <integer> The present storage count.
Page 227 16.2 Commands :TRACe:CHANnel<n>:DATA:READ? Function Reads the stored data. :TRACe:CHANnel<n>:DATA:READ? Syntax [TM|DO|DI|SF|SL|MF|ML|LC|HC|CP] Requests a timestamp sequence. B inary format is double-precision real number. Requests a digital output sequence. Binary format is word. Requests a digital input sequence. Binary format is word. Requests a source function sequence. Binary format is byte. Requests a source level sequence. B inary format is double-precision real number. R equests a measurement function sequence. Binary format is byte.
Page 228: Synchronization Commands (Synchronize Group)
16.2 Commands 16.2.10 Synchronization Commands (SYNChronize Group) :SYNChronize:MODE/? Function Sets the synchronization mode between units (master or slave) or queries the current setting. :SYNChronize:MODE MASTer|SLAVe Syntax MASTer Specifies master. SLAVe Specifies slave. :SYNChronize:MODE? → MAST Set to master. → SLAV Set to slave. :SYNC:MODE SLAV Example :SYNC:MODE? :SYNChronize:CHANnel/? Function Turns ON/OFF the inter-channel synchronous operation or queries the current setting. :SYNChronize:CHANnel 1|0|ON|OFF Syntax 1 or ON S pecifies synchronous operation...
Page 229: External I/O Commands (Route Group)
16.2 Commands 16.2.11 External I/O Commands (ROUTe Group) :ROUTe:BNC:STARt/? Function Sets the signal direction (input or output) of the start BNC or queries the current setting. :ROUTe:BNC:STARt INPut|OUTPut Syntax INPut Sets the start BNC to input. OUTPut Sets the start BNC to output. :ROUTe:BNC:STARt? → INP Set to input. → OUTP Set to output. :ROUT:BNC:STAR OUTP Example :ROUT:BNC:STAR? :ROUTe:BNC:TRIGger/? Function Sets the signal direction (input or output) of the trigger BNC or queries the current setting. :ROUTe:BNC:TRIGger INPut|OUTPut Syntax INPut Sets the trigger BNC to input. OUTPut Sets the trigger BNC to output. :ROUTe:BNC:TRIGger? → INP Set to input.
Page 230: System Commands (System Group)
16.2 Commands 16.2.12 System Commands (SYSTem Group) :SYSTem:DISPlay[:STATe]/? :SYSTem:DISPlay:CHANnel Function Turns ON/OFF the display or queries the current Function Switches the display (CH1 display, CH2 display, or both CH display). setting. :SYSTem:DISPlay[:STATe] 1|0|ON|OFF :SYSTem:DISPlay:CHANnel 1|2|DUAL Syntax Syntax 1 or ON Turns the display ON. Sets to CH1 display. 0 or OFF Turns the display OFF. Sets to CH2 display. :SYSTem:DISPlay[:STATe]? DUAL Sets to dual channel display. → 1 The display is ON.
Page 231 :SYSTem:CLOCk:TIME <character string> Syntax setting. <character string> S pecify a character string in :SYSTem:SETup:PON <character string> Syntax “hh:mm:ss” format. <character string> N ame of the setup data file hh = Hours (00 to 23) that is used to start up the mm = Minutes (00 to 59) GS820. ss = Seconds (00 to 59) :SYSTem:SETup:PON? :SYSTem:CLOCk:TIME? :SYST:SET:PON "XY_Test.txt" Example → <character string> Time “hh:mm:ss” format :SYSTem:ERRor? :SYST:CLOC:TIME "17:30:45" Example Function Queries the error code and description.
Page 232 16.2 Commands :SYSTem:BEEPer/? :SYSTem:COMMunicate:RS232:BAUDrate/? Function Turns ON/OFF the beep sound for error Function Sets the RS-232 baud rate (9600 bps to 115200 bps) or queries the current setting. occurrences or queries the current setting. :SYSTem:BEEPer 1|0|ON|OFF :SYSTem:COMMunicate:RS232:BAUDrate Syntax Syntax 1 or ON Enables the beep sound. 9600|14400|19200|38400|57600|115200 0 or OFF Disables the beep sound. 9600 Selects 9600 bps. :SYSTem:BEEPer? 14400 Selects 14400 bps. → 1 Beep sound enabled. 19200 Selects 19200 bps. → 0 Beep sound disabled.
Page 233 16.2 Commands :SYSTem:COMMunicate:RS232:SBITs/? :SYSTem:COMMunicate:ETHer:PORT? Function Sets the RS-232 stop bits (1 bit or 2 bits) or Function Queries the command socket port number of queries the current setting. Ethernet. :SYSTem:COMMunicate:RS232:SBITs 1|2 :SYSTem:COMMunicate:ETHer:PORT? Syntax Syntax → 7655 T he port number of the command Selects 1 bit. Selects 2 bits. socket. :SYSTem:COMMunicate:RS232:SBITs? :SYST:COMM:ETH:PORT? Example → 1 Set to 1 bit. → 2 Set to 2 bits. :SYSTem:COMMunicate:ETHer:DHCP/? :SYST:COMM:RS232:SBIT 1 Example Function Turns ON/OFF the DHCP function of Ethernet or :SYST:COMM:RS232:SBIT? queries the current setting.
Page 234 16.2 Commands :SYSTem:COMMunicate:ETHer:GATE/? Function Sets the Ethernet default gateway or queries the current setting. :SYSTem:COMMunicate:ETHer:GATE Syntax <character string> <character string> S pecify the default gateway in the “0.0.0.0” format. :SYSTem:COMMunicate:ETHer:GATE? → <character string> The present default gateway. :SYST:COMM:ETH:GATE "192.168.0.255" Example :SYST:COMM:ETH:GATE? :SYSTem:COMMunicate:ETHer: TERMinator/? Function Sets the Ethernet command socket terminator (CR, LF, or CR+LF) or queries the current setting. :SYSTem:COMMunicate:ETHer:TERMinator Syntax CR|LF|CRLF Selects CR. Selects LF. CRLF Selects CR+LF. :SYSTem:COMMunicate:ETHer:TERMinator? → CR Set to CR.
Page 235: Status Commands (Status Group)
16.2 Commands 16.2.13 Status Commands (STATus Group) :STATus:SENSe:ENABle/? :STATus:SOURce:CONDition? Function Sets the measurement event enable register or Function Queries the source event condition register. queries the current setting. :STATus:SOURce:CONDition? Syntax :STATus:SENSe:ENABle <integer> Syntax → <integer> T he present source event condition <integer> S pecify any value between 0 to register value. 65535. :STAT:SOUR:COND? Example :STATus:SENSe:ENABle? → <integer> T he present source event enable :STATus:SOURce:EVENt? register value. Function Queries the source event register and clears the :STAT:SOUR:ENAB 16385 Example...
Page 236: Common Commands
*RCL *IDN? Function Loads the setup data. Function Queries the device information. *RCL 1|2|3|4 Syntax *IDN? Syntax Loads setup data from Setup1.txt. → “YOKOGAWA, product model, serial number, Loads setup data from Setup2.txt. firmware revision” Loads setup data from Setup3.txt. Product model: 765601, 765602, 765611, 765612 Loads setup data from Setup4.txt. *IDN? Example *RCL 2...
Page 237 16.2 Commands *OPC Function Generates a standard event OPC when the execution of all previous commands is completed. *OPC Syntax *OPC Example *OPC? Function Generates a response when the execution of all previous commands is completed. *OPC? Syntax → 1 E xecution of all commands completed. *OPC? Example *WAI Function Waits for the completion of the overlap command. *WAI Syntax *WAI Example IM 765601-01E 16-44...
Page 238 16.3 Status Reports 16.3.1 Status Reports Status Reports The figure below shows the status report that is read by serial polling. This status report is an extended version of the status report defined in IEEE 488.2-1992. Standard Event Power On / / / / / / Command Error...
Page 239: Status Reports
16.3 Status Reports Registers and Queues That Affect the 16.3.2 Status Byte Status Byte Status Byte Registers that affect the bits of the status byte are shown below. ESB MAV EAV SSB MSB • Standard event register: Sets bit 5 (ESB) of the status byte to 1 or 0. • Output queue: Sets bit 4 (MAV) of the status byte Bits 3 and 7 Not used (always 0)
Page 240: Standard Event Register
16.3 Status Reports Status Byte Operation 16.3.3 Standard Event Register A service request is issued when bit 6 of the status byte becomes 1. Bit 6 is set to 1 when any of the other Standard Event Register bits becomes a 1 (when the corresponding bit of the CME EXE DDE QYE RQC OPC service request enable register is also set to 1). For example, if an event occurs and the logical AND Bit 7 PON (Power ON) of the standard event register and the corresponding Set to 1 when the instrument is turned ON.
Page 241 16.3 Status Reports Standard Event Register Operation The standard event register is a register for the eight types of events that occur inside the instrument. Bit 5 (ESB) of the status byte is set to 1 when any of the bits in this register becomes 1 (or when the corresponding bit of the standard event enable register becomes 1). Example 1. A query error occurs. 2. Bit 2 (QYE) is set to 1. 3. Bit 5 (ESB) of the status byte is set to 1 if bit 2 of the standard event enable register is 1. In addition, you can also check what type of event occurred in the instrument by reading the contents of the standard event register.
Page 242 The bit in the condition register is set to 1 if the an overlapped sweep start is applied before the sweep temperature error or overcurrent protection of CH1 is activated and the GS820 needs to be turned OFF. The operation is completed and a sampling error occurs. The bit in the event register is set to 1 when the bit in the event register is set to 1 when the condition condition register bit changes from 0 to 1.
Page 243: Source Event Register
16.3 Status Reports Clearing the Source Event Register The source event register is cleared in the following three cases. • When the contents of the source event register is read by the :STATus:SOURce:EVENt? command. • When a *CLS command is received. • When the instrument is power cycled. IM 765601-01E 16-50...
Page 244 16.3 Status Reports 16.3.5 Measurement Event Register Measure Event Register Condition Register OVR2 CHI2 CLO2 EOM2 OVR1 CHI1 CLO1 EOM1 :STATus:SENSe:CONDition? Event Register :STATus:SENSe:EVENt? OVR2 CHI2 CLO2 EOM2 OVR1 CHI1 CLO1 EOM1 Bit 15 TSE (Trigger Sampling Error) Bit 5 OVR12 (CH1 Over Range) The bit in the condition register temporarily set to 1 The bit in the condition register is set to 1 if the if an overlapped trigger is applied while sourcing or...
Page 245: Measurement Event Register
16.3 Status Reports Clearing the Measurement Event Register 16.3.6 Output Queue and Error Queue The measurement event register is cleared in the following three cases. Output Queue • When the contents of the source event register is The output queue stores response messages for the read by the :STATus:SENSe:EVENt? command. queries. • When a *CLS command is received. The example below shows that data is stored record • When the instrument is power cycled.
Page 246: Sample Programs
16.4 Sample Programs Notes on Using the Sample Programs YOKOGAWA assumes no liability for any problems that may occur as a result of using the sample programs. 16.4.1 Before Programming Platform and Language Target machine: Windows PC Language: Visual Basic Version 5.0 Professional Edition or higher. GPIB board: AT-GPIB/TNT IEEE-488.2 by National Instruments.
Page 247: Interface Access Function
Attribute VB_Name = "CommLib" ' Interface Access Function ' Used modules: VISA interface by National Instruments visa32.bas and vpptype.bas ' RS232 settings (match with the settings on the GS820) Const RS232_BAUD = 115200 ' Baud rate for RS232 9600/14400/19200/38400/57600/115200 Const RS232_DBIT = 8...
Page 248 16.4 Sample Programs ' Transmission function Function CommSend(ByVal vi As Long, ByVal msg As String) As Long Dim act, ret As Long ret = viWrite(vi, msg + Chr(10), Len(msg) + 1, act) ' Add LF to the character string and send If (ret <...
Page 249: Sample 1 (Example Of Reading The Measured Results During Free Run Using Constant Period Trigger)
16.4 Sample Programs 16.4.3 Sample 1 (Example of Reading the Measured Results during Free Run Using Constant Period Trigger) Attribute VB_Name = "Sample1" '================================================================ Sample 1 (Example of Reading the Measured Results during Free Run Using Constant Period Trigger) CALL SampleSequence1() '================================================================ '---------------------------------------------------------------- Setup 1...
Page 250 16.4 Sample Programs Call CommSend(dev, ":CHAN1:SENS:MODE FIX") ' Measurement mode fixed function Call CommSend(dev, ":CHAN1:SENS ON") ' Measurement Call CommSend(dev, ":CHAN1:SENS:NPLC 1") ' Integration time 1 PLC Call CommSend(dev, ":CHAN1:SENS:ZERO:AUTO ON") ' Auto zero Call CommSend(dev, ":CHAN1:SENS:TRIG SOUR") ' Measurement trigger Source change Call CommSend(dev, ":CHAN1:SENS:DEL MIN") ' Measurement delay...
Page 251: Sample 2 (Example Of Generating A Trigger From The Pc And Reading The Measured Results)
16.4 Sample Programs 16.4.4 Sample 2 (Example of Generating a Trigger from the PC and Reading the Measured Results) Attribute VB_Name = "Sample2" '================================================================ Sample 2 (Example of Generating a Trigger from the PC and Reading the Measured Results) CALL SampleSequence2() '=============================================================== '---------------------------------------------------------------- Setup 2...
Page 252 16.4 Sample Programs Call CommSend(dev, ":CHAN2:SENS:MODE FIX") ' Measurement mode Fixed function Call CommSend(dev, ":CHAN2:SENS ON") ' Measurement ON Call CommSend(dev, ":CHAN2:SENS:FUNC CURR") ' Measurement function Current Call CommSend(dev, ":CHAN2:SENS:NPLC MIN") ' Integration time Minimum Call CommSend(dev, ":CHAN2:SENS:ZERO:AUTO OFF") ' Auto zero Call CommSend(dev, ":CHAN2:SENS:TRIG SOUR") ' Measurement trigger Source change...
Page 253: Sample 3 (Example Of Changing And Measuring Simultaneously On Two Channels Using Single-Step Sweep)
16.4 Sample Programs 16.4.5 Sample 3 (Example of Changing and Measuring Simultaneously on Two Channels Using Single-Step Sweep) Attribute VB_Name = "Sample3" '================================================================ Sample 3 (Example of Changing and Measuring Simultaneously on Two Channels Using Single-Step Sweep) CALL SampleSequence3() '=============================================================== '---------------------------------------------------------------- Setup 3 Channel synchronization...
Page 254 16.4 Sample Programs Call CommSend(dev, ":CHAN1:SOUR:PROT OFF") ' CH1 Limiter Call CommSend(dev, ":CHAN1:SOUR:DEL MIN") ' CH1 Source delay Minimum Call CommSend(dev, ":CHAN1:SOUR:FUNC VOLT") ' CH1 Source function Voltage Call CommSend(dev, ":CHAN1:SENS:FUNC CURR") ' CH1 Measurement function Current Call CommSend(dev, ":CHAN1:SENS:TRIG SOUR") ' CH1 Measurement trigger Source change Call CommSend(dev, ":CHAN1:SENS:DEL 250us")
Page 255 16.4 Sample Programs Call CommSend(dev, ":CHAN1:SOUR:LEV 0.2V") ' CH1 Source level 0.2 (The actual output has not changed. ' Will change on a subsequent trigger.) Call CommSend(dev, ":CHAN2:SOUR:LEV -5mA") ' CH2 Source level-5 mA (The actual output has not changed. ' Will change on a subsequent trigger.) Call CommSend(dev,":CHAN1:INIT") ' CH1 New measurement...
Page 256: Troubleshooting
Chapter 17 Troubleshooting and Maintenance 17.1 Troubleshooting • For the appropriate corrective actions when an message is shown on the display, see section 17.2. • If servicing is necessary, or if the instrument is not operating correctly after performing the corrective actions described below, contact your nearest YOKOGAWA dealer. Problem Probable Cause Corrective Action Reference Section The power does not turn ON. Using a power supply Use a correct power supply.
Page 257 “Hardware the specifications. input abnormal error” is displayed. “Abnormal Temperature” is The exhaust or inlet holes Provide adequate space around the GS820. 3.1, 3.2 displayed. are blocked. “Circuit Protection” is Connected a load outside Connect a load within the specifications.
Page 258: Error Code Descriptions And Corrective Actions
17.2 Error Code Descriptions and Corrective Actions The following two types of messages can appear in the center of the display. • Error messages Displayed when an inappropriate operation is carried out. • Confirmation messages Confirmation messages are not entered in the error queue, but displayed in the error log.
Page 259 Queue overflow 16-38, error queue using *CLS. 16-43, 16-50 −361 Parity error Check that the communication settings on the GS820 15-5 and PC match. If the settings are correct, check the cable, and lower the baud rate. −362 Framing error Check that the communication settings on the GS820 15-5 and PC match.
Page 260 17.2 Error Code Descriptions and Corrective Actions Instrument Errors (+100 and higher) Error No. Error Message Corrective Action Page +101 Too complex expression Keep the total number of constants, variables, and operators in a MATH definition less than or equal to 256.
Page 261 Corrective Action Page ch1/2 mauto samefunction Change the measurement range to fixed range, or set 7-2, 7-3 the GS820 so that the measurement function and the source function are not the same. ch1/2 mauto autofunction Change the measurement range to fixed range or 7-1, 7-2 select a measurement mode other than auto function.
Page 262: Self-Test
17.3 Self-Test Procedure Displaying the Self-Test Menu Press SHIFT+SETUP (MISC) to display the MISC menu. Press the Next 1/2 soft key. Press the Test soft key. Executing the Display Test Press the Display soft key. The entire display illuminates. To end the test, press ESC. Executing the Key Test Press the Key soft key.
Page 263 If it does not, contact your nearest YOKOGAWA dealer. Self-Test Tests whether the internal functions of the GS820 are operating correctly. If an error appears, contact your nearest YOKOGAWA dealer. <<Corresponding Command Mnemonic>>...
Page 264: Viewing The Product Information
17.4 Viewing the Product Information Procedure Press SHIFT+ERROR (INFO). Explanation The following information is displayed. Product name Serial number Most recent firmware revision and update date/time Most recent logic revision Model Calibration date <<Corresponding Command Mnemonic>> *IDN? Index IM 765601-01E 17-9...
Page 265: Updating The System Firmware
An error will occur if there is no system file in the GS820RAM. When the update operation is completed, a message prompting you to power cycle the GS820 appears. If the message is displayed, cycle the GS820 power. Note • It takes some time to completely copy the system file to the volatile storage (GS820RAM).
Page 266: Recommended Replacement Parts And Maintenance
Recommended Replacement Period Cooling fan 3 years Backup battery (lithium battery) 5 years VFD 3 years Calibration We recommend that you calibrate the GS820 once a year to assure its measurement accuracy. Contact your nearest YOKOGAWA dealer to have your GS820 calibrated. Index IM 765601-01E 17-11...
Page 267: Chapter 18 Specifications
Chapter 18 Specifications 18.1 Source Section DC Voltage Source 765601/765602 Range Range Generated Resolution Max. Load Current Accuracy (One Year) Temperature Coefficient ± (% of setting + V) ± (% of setting + V)/°C 200 mV ±200.000 mV 1 µV ±3.2 A 0.02 + 250 µV 0.003 + 35 µV...
Page 268 18.1 Source Section 765611/765612 Range Range Generated Resolution Max. Load Voltage Accuracy (One Year) Temperature Coefficient ± (% of setting + A) ± (% of setting + A)/°C 200 nA ±200.000 nA 1 pA ±50 V 0.06 + 3 nA 500 pA 2 µA ±2.00000 µA...
Page 269 18.1 Source Section Voltage Limiter 765601/765602 | Setting | Range Resolution Minimum Setting 1.000 mV to 200.000 mV 200 mV 1 µV 1 mV 0.20001 V to 2.00000 V 10 µV 1 mV 2.0001 V to 7.0000 V 100 µV 5 mV 7.0001 V to 18.0000 V 18 V...
Page 270: Measurement Section
18.2 Measurement Section DC Voltage Measurement 765601/765602 Range Range Resolution Accuracy Temperature Coefficient Measured ± (% of reading + V) ± (% of reading + V)/°C 200 mV ±210.000 mV 1 µV 0.015+200 µV(250 µV){300 µV}[500 µV] 0.0025+30 µV(40 µV){45 µV}[60 µV] 2 V ±2.10000 V 10 µV 0.015+200 µV(400 µV){1 mV}[5 mV] 0.0025+30 µV(60 µV){200 µV}[800 µV] 7 V ±7.1000 V 100 µV 0.015+2 mV(4 mV){10 mV}[50 mV] 0.0025+300 µV(600 µV){2 mV}[8 mV] 18 V ±18.0000 V...
Page 271: Function
18.3 Function Source Source function: Voltage and current Source waveform: DC and pulse Sweep mode: L inear, logarithmic, program (up to 100000 steps), and single-step Trigger source: External, internal timer1 and 2 (period: 100 µs to 3600 s) Sweep start source: External, internal timer1 and 2 (period: 100 µs to 3600 s) Source delay: 15 µs to 3600 s Response characteristics: Normal and stable Measurement Measurement function: V oltage, current, auto, voltmeter mode, ammeter mode, and resistance meter modes Integration time: 0.001 to 25PLC (Power Line Cycle) Trigger source: External, internal timer1 and 2 (period: 100 µs to 3600 s) Measurement delay: 0 µs to 3600 s Measurement data storage: Up to 100000 data points Average: Moving average (average count: 2 to 256) Voltage sense: Two-wire system and four-wire system Computation Equation Computation Loads the equation definition file created in text format and performs the computation.
Page 272: External I/O Section (Bnc (Trigger In/Out And Start In/Out), Digital I/O (Ext I/O), And I/O For Synchronous Operation (Sync In/Out))
18.4 External I/O Section (BNC (TRIGGER IN/OUT and START IN/OUT), Digital I/O (EXT I/O), and I/O for Synchronous Operation (SYNC IN/OUT)) BNC I/O Connector: BNC connector I/O level: I/O logic format: Negative logic, falling edge Minimum pulse width: 10 µs Digital I/O Connector: 15 pins (765601/765611 digital I/O 2 bit model) 50 pins (765602/765612 digital I/O 16 bit model) I/O level: Minimum pulse width: 10 µs I/O for Synchronous Operation Connector: RJ-11 connector I/O level:...
Page 273: Interface
18.5 Interface GP-IB Interface Electrical and mechanical specifications: Conforms to IEEE St’d 488-1978 Functional specifications: S H1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, and C0 Protocol: Conforms to IEEE St’d 488.2-1992 Address: 0 to 30 RS-232 Interface Electrical specifications: Conforms to EIA RS-232 Connection format: Point-to-point Transmission mode: Full duplex Synchronization mode: Start-stop synchronization Baud rate: 9 600, 14400, 19200, 38400, 57600, and 115200 bps USB Interface Number of ports: Connector type: Type B connector (receptacle) Electrical and mechanical specifications: Conforms to USB Rev. 2.0 Protocol: Mass storage class, USB-TMC Ethernet Interface Number of ports: Connector type: RJ-45 connector...
Page 274: Contents Of The Factory Default Setup File (Default.txt)
18.6 Contents of the Factory Default Setup File (Default.txt) Item Source Mode Function Voltage Voltage Auto range (765601/765602) Voltage range 18 V 18 V (765611/765612) 50 V 50 V Voltage level Voltage pulse base Current range 200 mA 200 mA Current level 0 mA 0 mA...
Page 275 18.6 Contents of the Factory Default Setup File (Default.txt) Item Setting Synchronization Channel Asynchronous Between units Master External I/O BNC START terminal IN (input) BNC TRIGGER terminal IN (input) Auxiliary trigger output source Through Store Store count Result file generation function Time Timer1 50 ms Timer2 50 ms Index IM 765601-01E 18-9...
Page 276: General Specifications
18.7 General Specifications Safety Standards Item Specifications Safety Standards Complying Standard EN61010-1, EN61010-2-030 Measurement category Other (O) (250 Vpeak) The overvoltage category (Installation category) CAT II Pollution degree 2 Emissions Complying Standards EN61326-1 Class A EN55011 Class A, Group 1 EN61000-3-2 Class A EN61000-3-3 EMC Regulatory Arrangement in Australia and New Zealand EN 55011 Class A, Group 1 Korea Electromagnetic Conformity Standard ( 한국 전자파적합성기준 ) This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
Page 277 This category applies to measurement of secondary electric circuits in equipment across a transformer. The estimated transient overvoltage that may be applied to the GS820 signal input terminals is 1500 V. Measurement category II applies to measurement of circuits, such as household electric appliances and portable electric tools, that are connected to low-voltage installations.
Page 278 18.7 General Specifications Maximum allowable input voltage Across SENSE Hi-SENSE Lo and across OUTPUT Hi-OUTPUT Lo ±18 Vpeak (765601/765602) ±50 Vpeak (765611/765612) Across SENSE Hi-OUTPUT Hi and across SENSE Lo-OUTPUT Lo ±0.5 Vpeak Across each terminal of CH1 and each terminal of CH2 ±250 Vpk Maximum Power Consumption Approx. 250 VA Maximum Common-Mode Voltage Across each terminal and case ±250 Vpeak External Dimensions Approx. 213 (W) x 132 (H) x 450 (D) mm excluding projections.
Page 279: External Dimensions
18.8 External Dimensions Unit: mm 765601/765611 765602/765612 Rear View 12.3 28.5 ±5 Dimensions with the JIS rack mount kit Mounting surface ±1 ±1 Mounting surface ±1 ±1 Dimensions with the EIA rack mount kit Mounting surface 460.3 ±1 482.6 ±1 Mounting surface 460.3 ±1...
Page 280: Appendix
Appendix Appendix 1 Program File Examples This section provides program file examples and their output patterns. (1) Change the Source Level of CH1 Program example Output pattern Source level When source mode = DC When source mode = pulse CH1.SL (2) Change the Source Level and Timer 1 of CH1 Program example Output pattern...
Page 281 Appendix 1 Program File Examples (4) Change the Source Level and Auxiliary Trigger Source of CH1 Program example Output pattern Auxiliary trigger When source mode = DC Source level Source Auxiliary trigger signal Auxiliary trigger signals are CH1.SL output from the output terminal for synchronous operation.
Page 282: Appendix 2 Digital Input/Output
Appendix 2 Digital Input/Output The GS820 can output digital signals and read input digital signals in sync with source action or measure action. Digital Signal Output Method There are two methods to output digital signals. One is to use program sweeping, and the other is to use user-defined computation.
Page 283 Appendix 2 Digital Input/Output Method Using User-Defined Computation You can change the digital output signals by using variable DO in a user-defined computation expression and substituting values in DO. When changing DO using user- defined computation, the output timing is that of measure action. For example, if you write the expression “DO=3,” D0 and D1 will be set to low level and all other bits to high level at the measure action timing. By combining user-defined computation with conditional expressions, you can change the digital output only when certain conditions are met.
Page 284 CONFIG key ....4-6, 5-8, 5-10, 5-12, 5-13, 5-14, 5-15, GPIB soft key..............14-5 7-5, 7-6, 7-7, 7-8, 8-1 GP-IB cable, connection ............. 14-4 Index Count soft key..............8-1, 9-1 Greenwich Mean Time............3-16 CSV format ................11-6 GS820 construction .............. 2-4 CSV Setting soft key............11-6 IM 765601-01E Index-1...
Page 285 Index GS820RAM ............2-37, 4-9, 11-1 MISC ....3-14, 3-15, 4-10, 10-1, 10-9, 11-5, 11-6, 11-7, GS820ROM ............2-36, 4-9, 11-1 12-2, 12-3, 13-3, 13-6, 14-5, 15-5, 17-7, 17-10 MODE ................... 7-1 model ..................ii Page Mode soft key ..........6-1, 6-5, 6-9, 6-11 handling precautions ............
Page 286 Index Save Setup soft key............. 11-1 Page S.Delay soft key..............5-10 TCP/IP ................13-3 Select File soft key ............6-9, 8-3 Term soft key ............. 13-4, 15-5 self-test ................17-7 Test soft key................ 17-7 Selftest soft key ..............17-8 through ................2-27 separate................11-6 Through ..............

YOKOGAWA GS820 User Manual

Chapter 1 Names and Functions of Parts

Chapter 2 Explanation of Functions

App

Index

Chapter 3 Instrument Preparation and Common Operations

Chapter 4 Common Setup

Chapter 5 Source

Chapter 6 Sweep

Chapter 7 Measurement

Chapter 8 Computation

Chapter 9 Storing Measured Results and Recalling Statistical Computation Values

Values

Chapter 10 BNC I/O, External I/O, and Synchronous Operation

Chapter 11 Other Functions

App

Chapter 12 USB Interface

Chapter 13 Ethernet Interface

Chapter 14 GP-IB Interface

Chapter 15 RS-232 Interface

Chapter 16 Communication Commands

Chapter 17 Troubleshooting and Maintenance

Chapter 18 Specifications

Appendix

Appendix 1 Program File Examples

Appendix 2 Digital Input/Output

Quick Links

Need help?

Questions and answers

Related Manuals for YOKOGAWA GS820

Summary of Contents for YOKOGAWA GS820