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YOKOGAWA 7556 User Manual

YOKOGAWA 7556 User Manual

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Digital Resistance Meter
IM 755601-01E
4th Edition

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Summary of Contents for YOKOGAWA 7556

  • Page 1 Digital Resistance Meter IM 755601-01E 4th Edition...
  • Page 2 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 1st edition: July 1999 2nd edition: September 2013 3rd edition: May 2014 4th edition: October 2017 4th Edition: October 2017 (YMI) All Rights Reserved, Copyright © 1999 Yokogawa Electric Corporation All Rights Reserved, Copyright © 2013 Yokogawa Test & Measurement Corporation IM 755601-01E...

  • Page 4: Checking The Contents Of The Package

    7556 Main Unit Check that the model name and suffix code given on the name plate on the side panel match those on the order.
  • Page 5 Checking the Contents of the Package Standard Accessories The following standard accessories are supplied with the instrument. Check that all items are present and that they are undamaged. 1. Power cord (one of the following power cords is supplied according to the instrument's suffix codes) UL/CSA standard VDE standard BS standard...

  • Page 6: Safety Precautions

    • To prevent an electric shock or fire, be sure to use the power cord supplied by YOKOGAWA. The main power plug must be plugged into an outlet with a protective grounding terminal. Do not invalidate protection by using an extension cord without protective grounding.
  • Page 7 Do Not Remove the Covers or Disassemble or Alter the Instrument Only qualified YOKOGAWA personnel may remove the covers and disassemble or alter the instrument. The inside of the instrument is dangerous because parts of it have high voltages.

  • Page 8: Waste Electrical And Electronic Equipment

    With reference to the equipment types in the WEEE directive, this product is classified as a “Monitoring and control instruments” product. When disposing of products in the EU, contact your local Yokogawa Europe B.V. office. Do not dispose in domestic household waste.

  • Page 9: How To Use This Manual

    How to Use this Manual Structure of the Manual This User’s Manual consists of the following 12 chapters, and an index. Chapter Title Description Functions Describes the measurement principles and functions of the instrument. Operating procedures are not given in this chapter. However, reading this chapter will help you understand the operating procedures given in the chapters that follow.
  • Page 10 How to Use this Manual Conventions Used in this Manual Symbols The following symbols are used in this manual. Affixed to the instrument. Indicates danger to personnel or instrument and the operator must refer to the User’s Manual. The symbol is used in the User’s Manual to indicate the reference. WARNING Describes precautions that should be observed to prevent injury or death to the user.
  • Page 11 How to Use this Manual A Procedure Example Pressing the SHIFT key then the MΩ key displays the contact check selection menu. LIMIT Press the key until the desired item appears on the screen. < > Press the ENTER key to confirm the selection. If you selected bEF or AFt, enter the contact check level using the numerical keys.

  • Page 12: Table Of Contents

    Contents Checking the Contents of the Package ..................ii Safety Precautions ........................iv Waste Electrical and Electronic Equipment ................. vi EU Battery Directive ........................vi How to Use this Manual ......................vii Chapter 1 Functions Block Diagram ........................... 1-1 Functions ..........................1-2 Digital Numbers and Characters and A List of Menus ..............
  • Page 13 Contents Chapter 8 Using the Serial (RS-232) Interface Serial (RS-232) Interface Functions and Specifications ............8-1 Connecting the Serial (RS-232) Interface Cable ............... 8-2 Handshaking ..........................8-4 Data Format ..........................8-6 Serial Communication Settings ....................8-7 Chapter 9 Using the GP-IB Interface GP-IB Interface Functions and Specifications ................
  • Page 14 Contents Chapter 11 Error Messages, Maintenance, and Inspection 11.1 Troubleshooting ........................11-1 11.2 Messages and Corrective Actions ................... 11-2 11.3 Self Test ..........................11-5 11.4 Adjustments ..........................11-7 11.5 Replacing the Power Fuse ....................11-12 Chapter 12 Specifications 12.1 Input Specifications ......................... 12-1 12.2 Trigger Specifications ......................

  • Page 15: Chapter 1 Functions

    LOCAL key GP-IB connector Chapter 1 Functions 1.1 Block Diagram Block Diagram Constant current source for measurement Analog section Digital section Display interface Printer interface interface converter Pre-amp Handler interface converter Communication interface Comparator Memory Diff. amp. Constant current source for contact check Measurement Principle A constant current is fed through the resistor under measurement from the H...

  • Page 16: Functions

    1.2 Functions Comparator Function Determines whether or not the measured result is within the comparison range set arbitrarily by the user. HI, IN, or LO mark is turned ON to indicate the comparator result. The result is also output via the handler interface. Contact Check Function Determines whether or not the item under measurement is properly connected to the measurement input terminal, and the result is output via the handler interface.
  • Page 17 1.2 Functions Handler Interface Function The handler interface is used to output comparator results, contact check results, index signals, and various other signals. For the specifications of each pin, see section 12.7 “Handler Interface Specifications.” Other Functions Storing/Recalling Measured Data Up to 2000 data sets can be stored.

  • Page 18: Digital Numbers And Characters And A List Of Menus

    1.3 Digital Numbers and Characters and A List of Menus Digital Numbers and Characters Because the instrument’s display is a seven-segment LED, the following special characters are used to represent the alphanumeric characters. Some characters are not used by the instrument. ∧...
  • Page 19 1.3 Digital Numbers and Characters and A List of Menus Measured data store menu (page 6-1) STORE (Number of stored data sets) SHIFT DATA Measured data recall menu (page 6-1) RECALL SHIFT DATA Communication interface setting menu (page 8-7 and 9-6) SHIFT * Displayed only on instruments that have the optional GP-IB interface.
  • Page 20 1.3 Digital Numbers and Characters and A List of Menus Misc menu (pages 4-5, 4-10, 4-11, 6-3, 6-4, 6-7, 7-4, and 11-6) k Ω (Start printing) MISC SHIFT (Printer output) (Stop printing) (40 characters, no measured data) (Output format) (40 characters, with measured data) (A4 size, no measured data) (A4 size, with measured data) (Percent limit)

  • Page 21: A List Of Initial Values

    1.4 A List of Initial Values Parameter Factory Default Initial Settings Resume Function* Display Deviation Deviation Deviation reference (REF) 100 kΩ 100 kΩ Measurement time NORMAL NORMAL Trigger mode EXTERNAL EXTERNAL Trigger delay 0 ms 0 ms Contact check function Contact check timing Before Before...

  • Page 22: Chapter 2 Names And Uses Of Parts

    LOCAL key GP-IB connector Chapter 2 Names and Uses of Parts 2.1 Names of Parts Front Panel Setting value/setting display (Main display, 5 digits on the 755601) HI LIMIT display (4 digits on the 755601) Reference display LO LIMIT display (4 digits on the 755601) DIGITAL RESISTANCE METER SETUP/MEAS HIGH...

  • Page 23: Keys And Error Displays

    2.2 Keys and Error Displays Display The selected measurement time lights Lights while storing measured data Lights while recalling measured data Indicates the comparator result Lights during contact check Lights while operating under remote control SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE...
  • Page 24 2.2 Keys and Error Displays Keys used during the SETUP mode SHIFT key Pressing this key once causes the keys to enter the shifted condition. Pressing it again clears the shifted condition. During the shifted condition, the functions indicated in purple characters are effective.
  • Page 25 2.2 Keys and Error Displays Error Display Overrange display When the measured value exceeds the display range or the maximum display value for the corresponding measurement range, an overrange results. The display shows the following when the measured value is over the range. “...

  • Page 26: Chapter 3 Before Starting Measurements

    • Do not remove the cover from the instrument. Some sections inside the instrument have high voltages that are extremely dangerous. For internal inspection or adjustment, contact your nearest YOKOGAWA dealer as listed on the back cover of this manual.

  • Page 27: Installing The Instrument

    3.2 Installing the Instrument Installation condition Install the instrument in a place that meets the following conditions. Flat, even surface Install the instrument on a stable horizontal surface. Otherwise, precise measurements may be impeded. Ambient temperature and humidity Ambient temperature: 5 to 40°C Ambient humidity: 20 to 80%RH (no condensation) Do not install the instrument in the following places:...

  • Page 28: Connecting The Power Cord

    OFF. • To prevent electric shock or fire, always use the power cord supplied by YOKOGAWA. • Always use protective grounding to prevent electric shock. Connect the power cord of the instrument to a three-pole power outlet that has a protective grounding terminal.
  • Page 29 6.3, “Initializing Setup Parameters” on page 6-7. If the instrument still fails to power up after checking these points, contact your nearest YOKOGAWA dealer for repairs. For Making Accurate Measurements Allow the instrument to warm up for at least 30 minutes after turning ON the power switch.

  • Page 30: Wiring

    3.4 Wiring CAUTION Do not apply any voltage or current across the measurement input terminals and across the measurement input terminal and the guard (the outside of the BNC connector). The maximum common-mode voltage across the case and input terminals is ±42 Vpeak. Not meeting these conditions can damage the instrument.
  • Page 31 3.3 Connecting the Power Cord Note • When measuring a resistor that contains capacitive components in parallel, the response becomes slow and correct measurements may not be obtained. In this case, turn OFF the contact check function, and perform the measurement after the response is adequately stable. •...

  • Page 32: Chapter 4 Setting The Measurement Conditions

    LOCAL key GP-IB connector Chapter 4 Setting the Measurement Conditions 4.1 Switching the Limit Mode Keys Indicator is off during SETUP mode SETUP/MEAS HIGH STORE RECALL NORMAL CHECK REMOTE FAST LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS...

  • Page 33: Changing The Range (Reference)

    4.2 Changing the Range (Reference) When the limit mode is set to deviation (%) Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ...
  • Page 34 4.2 Changing the Range (Reference) When the percent limit is set to 99.9% Reference Range Display Range 0.001 to 1.009 Ω 10 Ω “-99.99% 1.01 to 10.09 Ω 100 Ω 10.1 to 100.09 Ω 1 kΩ 199.99%” 0.101 k to 1.009 kΩ 10 kΩ...

  • Page 35: Using The Comparator Function

    4.3 Using the Comparator Function When the limit mode is set to deviation (%) Keys Indicates the comparator result Set/Display HI limit value SETUP/MEAS HIGH STORE RECALL CHECK REMOTE NORMAL FAST LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE...
  • Page 36 4.3 Using the Comparator Function Explanation Setting range of limit values (HI and LO values) The limit value is set in terms of the deviation (%) from the reference value that was set in section 4.3, “Changing the Range (Reference).” Limit Value Setting Range When the percent limit is 9.99% When the percent limit is 99.9%...
  • Page 37 4.3 Using the Comparator Function When the limit mode is set to absolute (R) Keys Indicates the comparator result Set/Display HI limit value SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE...

  • Page 38: Using The Contact Check Function

    4.4 Using the Contact Check Function Keys Indicator is ON while contact check is in progress SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE...

  • Page 39: Setting The Measurement Time

    4.5 Setting the Measurement Time Keys The appropriate indicator turns ON SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω...

  • Page 40: Using The Trigger Function

    4.6 Using the Trigger Function Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ CHECK Ω...
  • Page 41 4.6 Using the Trigger Function Selecting the edge [Main display] k Ω MISC SHIFT LIMIT [Main display] Ω ,% Ω ,% ENTER ENTER LIMIT Manual trigger (only when the trigger mode is set to MANUAL) SETUP/MEAS Press the key to switch to the measurement mode. SHIFT TRIG Trigger is activated every time the...
  • Page 42 4.6 Using the Trigger Function Selecting the trigger mode Select from the following list of choices. EXTERNAL: Trigger is activated using the input signal at the external trigger input terminal or the number 8 pin of the handler interface, and the measurement is made.

  • Page 43: Chapter 5 Making Measurements

    LOCAL key GP-IB connector Chapter 5 Making Measurements 5.1 Setting the Measurement Mode Keys Indicator is ON during the measurement mode Displays the measured value SETUP/MEAS HIGH STORE RECALL NORMAL CHECK REMOTE FAST LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK...
  • Page 44 5.1 Setting the Measurement Mode Precautions to be taken during measurement Precautions on the “HOLD” signal of the handler interface When the HOLD signal of the handler interface is set to “L,” the instrument switches to the measurement mode regardless of the mode it is currently in (the trigger mode is set to EXTERNAL), and makes measurements.

  • Page 45: Switching Between Deviation (%) And Absolute (R) Displays

    5.2 Switching between Deviation (%) and Absolute (R) Displays Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ...

  • Page 46: Chapter 6 Other Functions

    LOCAL key GP-IB connector Chapter 6 Other Functions 6.1 Store/Recall Measured Data Keys Indicator is ON while storing data Indicator is ON while recalling data SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK...
  • Page 47 6.1 Store/Recall Measured Data Note • Pressing the STORE DATA (SHIFT+0) key in the measurement mode while the store operation is in progress (“STORE DATA” indicator is ON) aborts the operation and continues the measurement. • Pressing the RECALL DATA (SHIFT+ .) key while the recall operation is in progress (“RECALL DATA”...

  • Page 48: Printing Data

    6.2 Printing Data Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ CHECK Ω REFERENCE LO LIMIT k Ω...
  • Page 49 BUSY (Busy) GND (Ground) PE (Paper end) NC (No connection) SLCT (Select) NC (No connection) NC (No connection) NC (No connection) NC (No connection) For details, contact your nearest GND (Ground) YOKOGAWA dealer. GND (Ground) NC (No connection) IM 755601-01E...
  • Page 50 6.2 Printing Data Output items Output Items Description, Limitations Number of stored data points Reference value Not output when the limit mode is set to absolute (R). Limit values (LO, HI) Comparator result Frequencies of HI, IN, and LO results Contact check error Frequencies of –nC–...
  • Page 51 6.2 Printing Data Print example IM 755601-01E...

  • Page 52: Initializing The Setup Information

    6.3 Initializing the Setup Information Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ CHECK Ω...

  • Page 53: Chapter 7 Using The Handler Interface

    LOCAL key GP-IB connector Chapter 7 Using the Handler Interface 7.1 Handler Interface Functions and Specifications Handler Interface Specifications The types of interface signals are as follows: • Comparator result output signal (HI, IN, LO) • Handshaking signal (EXT TRIG, INDEX, EOM) •...
  • Page 54 7.1 Handler Interface Functions and Specifications Output Signal Behavior The behavior of the INDEX, EOM, NO CONTACT, HI, IN, and LO output signals varies depending on the trigger mode as follows: When the trigger mode is set to EXTERNAL INDEX: The signal is generated (set to L) when a trigger occurs, regardless of the measurement result.
  • Page 55 7.1 Handler Interface Functions and Specifications Pin Arrangement, Shape Pin No. For details, contact your nearest YOKOGAWA dealer. Input Circuit (Isolated) +12V EXT TRIG HOLD 1.65 kΩ Output Circuit (Isolated) +12 V +12 V INDEX, EOM NO CONTACT HI, IN, LO...

  • Page 56: Setting The Pulse Width Of The Eom Signal

    7.2 Setting the Pulse Width of the EOM Signal Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ...

  • Page 57: Timing Chart

    7.3 Timing Chart The measurement timing varies depending on the trigger mode, contact check, and other settings. The timing chart when the trigger mode is set to EXTERNAL (external trigger) is shown below. When the contact check is OFF EXT TRIG (Example (Trigger delay) (Integral time)
  • Page 58 7.3 Timing Chart When the contact check is ON (after measurement) EXT TRIG (Example (Trigger delay) (Integral time) (Contact check period) INDEX HI, IN, LO IM 755601-01E...

  • Page 59: Chapter 8 Using The Serial (Rs-232) Interface

    Even, odd, none Stop bit: 1 or 2 bits Connector: For details contact your nearest YOKOGAWA dealer. Hardware handshaking: User can select whether to fix the CA and CB signals to TRUE or use the signal for flow control. Software handshaking:...

  • Page 60: Connecting The Serial (Rs-232) Interface Cable

    For details, see the following pages. Also, make sure to use interface cables that match the specifications of the instrument. Connector and Signal Names For details contact your nearest YOKOGAWA dealer. 2 RD (Received Data): Data received from the PC.
  • Page 61 8.2 Connecting the Serial (RS-232) Interface Cable Table of EIA-574 Standard Signals and Their JIS and CCITT Abbreviations Abbreviation Pin No. Description (9-pin connector) RS-232 CCITT AB (GND) Signal ground Transmitted data BA (TXD) BB (RXD) Received data CA (RTS) Request to send Clear to send CB (CTS)

  • Page 62: Handshaking

    8.3 Handshaking When using the serial (RS-232) interface for transferring data, it is necessary for equipment on both sides to agree on a set of rules to ensure the proper transfer of data. The set of rules is called handshaking. Because there are many handshaking methods that can be used between the instrument and the PC, one must make sure that the same method is chosen by both the instrument and the PC.
  • Page 63 8.3 Handshaking XON-RS Data transmission control Software handshaking is performed between the instrument and the PC. When an X- OFF code is received while sending data to the PC, the instrument stops the data transmission. When it receives the next X-ON code, it resumes the data transmission. CS signal from the PC is ignored.

  • Page 64: Data Format

    8.4 Data Format The serial (RS-232) interface on the instrument communicates using start-stop synchronization. With the start-stop synchronization, a start bit is added every time a character is transmitted. The start bit is followed by the data bits, parity bit, and stop bit. (See the figure below.) Circuit back to idle state (dotted line) or the start...

  • Page 65: Serial Communication Settings

    8.5 Serial Communication Settings Keys Indicator is ON during the remote mode SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω...
  • Page 66 8.5 Serial Communication Settings Explanation When you wish to use a PC to set the information that can be specified using the keys on the instrument, or output setup information or measured data to a PC, set the serial interface as follows. Selecting the mode Select the mode from the following list of choices.

  • Page 67: Chapter 9 Using The Gp-Ib Interface

    LOCAL key GP-IB connector Chapter 9 Using the GP-IB Interface 9.1 GP-IB Interface Functions and Specifications GP-IB Interface Functions Listener function • All of the information that you set with the panel keys can be set through the GP-IB interface except turning the power switch ON/OFF and setting the communication parameters.
  • Page 68 9.1 GP-IB Interface Functions and Specifications GP-IB Interface Specifications Electrical and mechanical specifications: Conforms to IEEE St’d 488.1-1987. Interface Functions: See the table below. Protocol: IEEE St’d 488.2-1992. Code: ISO (ASCII) code Mode: Addressable mode/Talk-only mode Address setting: The address can be set in the range from 0 to 30 using the address setting menu that is displayed with the I/F key (SHIFT+3).

  • Page 69: Connecting The Interface Cable

    9.2 Connecting the Interface Cable GP-IB Cable The GP-IB connector used on this instrument is a 24-pin connector that conforms to the IEEE St’d 488.1-1987. Use a GP-IB cable that conforms to this standard. Connection Procedure Connect the cable as shown below. Precautions to be taken when Connecting the Cable •...

  • Page 70: Responses To Interface Messages

    9.3 Responses to Interface Messages Responses to Interface Messages Responses to a uni-line message IFC(Interface Clear) Clears the talker and listener functions. Stops output if data are being output. REN(Remote Enable) Switches between the remote and local modes. IDY (Identify) is not supported. Responses to a multi-line message (address command) GET(Group Execute Trigger) Generates a trigger when the trigger mode is set to MANUAL.
  • Page 71 9.3 Responses to Interface Messages Multi-line messages Eight data lines are used to transmit multi-line messages. The messages are classified as follows: Address commands These commands are valid when the instrument is designated as a listener or as a talker. The following five commands are available. Commands that are valid on an instrument that is designated as a listener GTL (Go To Local) PPC (Parallel Poll Configure)

  • Page 72: Switching To The Addressable Mode

    9.4 Switching to the Addressable Mode Keys Indicator is ON during the remote mode SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ...
  • Page 73 9.4 Switching to the Addressable Mode Explanation Switching to the addressable mode Select “Adr” in the mode selection menu. Switch to the addressable mode if you wish to use the controller to set the information that you would normally use the panel keys to set or when outputting setup information or measured data to the controller.

  • Page 74: Switching To The Talk-Only Mode

    9.5 Switching to the Talk-only Mode Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA MEAS& HI LIMIT SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ CHECK Ω...

  • Page 75: Chapter 10 Communication Commands

    Chapter 10 Communication Commands 10.1 Before Programming The communication commands used by this instrument are based on the IEEE488.2 Standard. However, SCPI (Standard Commands for Programmable Instruments) is not supported. 10.1.1 Messages <PMT> PMT is a program message terminator. The following three types of terminators are available.
  • Page 76 10.1 Before Programming Response Messages Precautions to be Taken When Transferring Messages The response message format is shown below. • If a program message that does not contain a query is sent, the next program message can be sent at <Response message unit>...

  • Page 77: Commands

    10.1 Before Programming 10.1.2 Commands When Concatenating Commands • Command Group Commands A command group is a group of commands that There are three types of commands (program headers) have the same compound header. A command that are sent from the controller to the instrument. group may contain sub-groups.

  • Page 78: Responses

    10.1 Before Programming 10.1.3 Responses Upper-level Query An upper-level query is a query in which a question When the controller sends a message unit that has a mark (?) is appended to the highest level command of question mark (?) in its program header (query), the a group.

  • Page 79: Data

    10.1 Before Programming 10.1.4 Data <Resistance>, <Time> <Resistance> and <Time> indicate decimal values that Data have physical dimensions. <Multiplier> or <Unit> can Data contain conditions and values that are written be attached to the <NRf> format that was described after the header. A space is used to separate the earlier.
  • Page 80 10.1 Before Programming <Register> <Block data> <Register> indicates an integer that can be expressed <Block data> are data containing arbitrary 8-bit values. not only in <Decimal> notation, but also <Block data> are only used for response messages on <Hexadecimal>, <Octal>, or <Binary>. <Register> is the instrument.

  • Page 81: Synchronization With The Controller

    10.1 Before Programming 10.1.5 Synchronization with the Using the *WAI command Controller CMD$ = COMM:OPSE #H2000 ....(1) " " ' CALL IBWRT(M7556%, CMD$) Sequential and Overlap Commands CMD$ = PRIN:EXEC; ....(2) " " There are two types of commands: sequential and CALL IBWRT(M7556%, CMD$) overlap commands.
  • Page 82 10.1 Before Programming Using the *OPC? query Using the external event register CMD$ = COMM:OPSE #H2000 ....(1) CMD$ = STOR:COUN 200 ....(1) " " " " CALL IBWRT(M7556%, CMD$) CALL IBWRT(M7556%, CMD$) CMD$ = PRIN:EXEC;*OPC? ....(2) CMD$ = STOR ON ....(2) "...

  • Page 83: Programming Of Various Functions

    10.1 Before Programming 10.1.6 Programming of Various Using the :COMMunicate:WAIT command Functions CMD$ = STOR:COUN 200 ....(1) " " CALL IBWRT(M7556%, CMD$) This section describes the commands that are used for CMD$ = STOR ON ....(2) " " each function and presents examples showing their use. CALL IBWRT(M7556%, CMD$) Use this section as a reference when you are actually CMD$ =...
  • Page 84 10.1 Before Programming Setting and checking the reference value and limit Setting the contact check values Use the following command. When the limit mode is set to deviation (%) :CHECk[:MODE] Use the following command. :CHECk:LEVel Set the reference value. :LIMit:PCNT:REFerence Example Set the input range :LIMit:PCNT:PLIMit...
  • Page 85 10.1 Before Programming (11) Clear the SRQ line. Setting the trigger (12) Read the extended event register in order to To trigger the measurement from the external controller clear the register. or by using the trigger function on the instrument, use (13) Enable the SRQ interrupt once again.
  • Page 86 10.1 Before Programming Example 3 Output Example Set the trigger mode to internal trigger and trigger 1.00083E+02 the measurement 1.00083E+02 1.00083E+02 CMD$ = TRIG:MODE INT ....(1) 1.00083E+02 " " CALL IBWRT(M7556%, CMD$) 1.00083E+02 CMD$ = MEAS ON ....(2) " " 1.00082E+02 CALL IBWRT(M7556%, CMD$) 1.00083E+02...

  • Page 87: Commands

    10.2 Commands 10.2.1 A List of Commands Command Function Page CHECk Group Queries all settings related to the contact check function. 10-15 :CHECk? Sets the contact check level or queries the current setting. 10-15 :CHECk:LEVel Turns ON/OFF the contact check function and sets the check timing or queries the current setting. 10-15 :CHECk[:MODE] COMMunicate Group...
  • Page 88 10.2 Commands Command Function Page READ Group Queries the measured data. 10-25 :READ? RECall Group Queries all settings related to the recalling of the measure data. 10-26 :RECall? :RECall:DATA[:ASCii]? Queries the measured data that are stored (ASCII format). 10-26 :RECall:DATA:BINary? Queries the measured data that are stored (binary format). 10-27 Queries the statistics related to the stored measured data.

  • Page 89: Check(Contact Check) Group

    10.2 Commands 10.2.2 CHECk(contact CHECk) Group The commands in the CHECk(contact CHECk) Group deal with the contact check function. These commands can be used to make the same settings and inquiries as when the CHECK key on the front panel is pressed.

  • Page 90: Communicate Group

    10.2 Commands 10.2.3 COMMunicate Group The commands in the COMMunicate Group deal with communications. There are no front-panel keys that correspond to the commands in this group. :COMMunicate HEADer <Space> <NRf> LOCKout <Space> <NRf> OPSE <Space> <Register> OPSR OVERlap <Space> <Register>...
  • Page 91 10.2 Commands :COMMunicate:OPSE :COMMunicate:REMote (Operation Pending Status Enable register) Function Switches to remote/local mode or queries the current setting. When the setting is set to ON, it Function Sets the overlap commands that are subject to is set to the remote mode. , and or queries the current *OPC...

  • Page 92: Handler Group

    10.2 Commands :COMMunicate:WAIT? Function Creates the response that is returned when the specified event occurs. Syntax :COMMunicate:WAIT? <Register> <Register> = 0 to 65535 (Extended event register, see page 10-39) Response 1 (Fixed) Example :COMMUNICATE:WAIT? 65535→1 10.2.4 DISPlay Group The commands in the DISPlay Group deal with the measurement display.These commands can be used to make the same settings and inquiries as when the R/% key on the front panel is pressed.

  • Page 93: Header Group

    10.2 Commands 10.2.6 HEADer Group The commands in the HEADer Group deal with the measurement information when querying the measured data. These commands can be used to make the same settings and inquiries as the “HE. ” menu accessible through the I/F key on the front panel.

  • Page 94: Limit Group

    10.2 Commands 10.2.7 LIMit Group The commands in the LIMit Group deal with the limit mode and limit values. These commands can be used to make the same settings and inquiries as the “PLmt” menu accessible through the LIMIT MODE, REF, LIMIT, and MISC key on the front panel. :LIMit MODE <Space>...
  • Page 95 10.2 Commands :LIMit:PCNT? :LIMit:PCNT:PLIMit Function Queries all settings when the limit mode is set Function Sets the percent limit when the limit mode is set to deviation mode (%). to deviation (%) or queries the current setting. Syntax Syntax :LIMit:PCNT? :LIMit:PCNT:PLIMit {<NRf>} Example :LIMIT:PCNT?→:LIMIT:PCNT:...

  • Page 96: Measure Group

    10.2 Commands 10.2.8 MEASure Group The commands in the MEASure Group deal with measurements. These commands can be used to make the same settings and inquiries as when the SETUP/MEAS key on the front panel is pressed. :MEASure <Space> <NRf> :MEASure Function Starts or stops the measurement...

  • Page 97: Mtime(Meas Time) Group

    10.2 Commands 10.2.9 MTIMe(Meas TIMe) Group The commands in the MTIMe(Meas TIMe) Group deal with the measurement time. These commands can be used to make the same settings and inquiries as when the MEAS TIME key on the front panel is pressed. :MTIMe <Space>...

  • Page 98: Print Group (Option)

    10.2 Commands 10.2.11 PRINt Group (Option) The commands in the PRINt Group deal with the print functions available via the Centronics interface. These commands can be used to make the same settings and inquiries as the “Prin” or “dAtA” menu accessible through the MISC key on the front panel.

  • Page 99: Read Group

    10.2 Commands 10.2.12 READ Group The commands in the READ Group deal with the querying of the measured data. There are no front-panel keys that correspond to the commands in this group. :READ :READ? • When abnormalities are detected in the test current : Function Queries the measured data.

  • Page 100: Recall Group

    10.2 Commands 10.2.13 RECall Group The commands in the RECall Group deal with the recalling of the measured data. These commands can be used to make the same settings and inquiries as when the RECALL DATA key on the front panel is pressed.
  • Page 101 10.2 Commands :RECall:DATA:BINary? :RECall:RESult? Function Queries the measured data that are stored in Function Queries the statistics related to the measured binary format. data that are stored. Syntax Syntax :RECall:DATA:BINary? {<NRf>, <NRf>} :RECall:RESult? {LIMit|COUNt|STATistics} (Parameters can be omitted) (Parameters can be omitted) <NRf>, <NRf>...

  • Page 102: Selftest Group

    10.2 Commands Example :RECall[:STATe] :RECALL:RESULT? LIMIT →PCNT,1.0000E+05,5.00, —5.00 Function Sets the measured data recall state (ON/OFF) :RECALL:RESULT? COUNT→1971,14,8,7 or queries the current setting. :RECALL:RESULT? STATISTICS→1990,10, Syntax :RECall[:STATe] {<Boolean>} 0.06378E+02,—0.05249E+02,0.11627E+02, :RECall:STATe? 0.010057E+02,0.0462821E+02,0.1388463E+02 Response {1|0} Description • If the parameter is omitted, it is equivalent to Example :RECALL:STATE ON specifying STATistics.

  • Page 103: Status Group

    10.2 Commands 10.2.15 STATus Group The commands in the STATus Group are used to set or query the settings related to the status report. There are no front-panel keys that correspond to the commands in this group. For details related to the status report, see section 10.3. :STATus CONDition EESE...

  • Page 104: Store Group

    10.2 Commands :STATus:ERRor? :STATus:QENable Function Queries the error code and message Function Sets whether or not to store messages other information (beginning of the error queue). than errors in the error queue or queries the Syntax current setting. :STATus:ERRor? Response Syntax <NR1>, <Character string>...
  • Page 105 10.2 Commands :STORe:POINts? Function Queries the number of data points that are stored. Syntax :STORe:POINts? Example :STORE:POINTS?→0 Response <NR1> form Description Outputs the number of measured data points that are currently stored in the internal memory. :STORe[:STATe] Function Sets the measured data store state (ON/OFF) or queries the current setting.

  • Page 106: Trigger Group

    10.2 Commands 10.2.17 TRIGger Group The commands in the TRIGger Group deal with the trigger mode, trigger delay, edge, and other settings. These commands can be used to make the same settings and inquiries as the “td” or “EdGE” menu accessible through the TRIG MODE or MISC key on the front panel.

  • Page 107: Common Command Group

    10.2 Commands 10.2.18 Common Command Group The commands in the common group are defined in the IEEE 488.2-1992 and are independent of the instrument’s functions. There are no front-panel keys that correspond to the commands in this group. *CLS *ESE <Space>...
  • Page 108 Syntax the options is installed. *IDN? Example • The “ ” command must be the last query *IDN?→YOKOGAWA,755601,0,F1.01 *OPT? Description A reply is returned in the following form: in a program message. Otherwise, an error <Manufacturer>, <Model>, <Serial number results.
  • Page 109 10.2 Commands *SRE (Service Request Enable register) *TST? (TeST) Function Sets the service request enable register or Function Performs a self test and queries the result. queries the current setting. Syntax *TST? Syntax Example *SRE {<NRf>} *TST?→0 Description • Performs an internal self-test, and returns the *SRE? sum of the error codes as a test result.

  • Page 110: Status Report

    10.3 Status Report 10.3.1 About the Status Report Service request enable register <Status Report> & The figure shows the status report that is read & by serial polling. This status report is an & extended version of the & status report defined in &...

  • Page 111: Status Byte

    10.3 Status Report 10.3.2 Status Byte Summary of the Registers and Queues Name Function Write Read Status byte Status byte — Serial polling (RQS), *STB?(MSS) 6 ESB MAV EES EAV 1 Service request Status byte mask *SRE *SRE? enable register Standard event Changes in device —...

  • Page 112: Standard Event Register

    10.3 Status Report 10.3.3 Standard event register Status Byte Operation A service request is issued when bit 6 of the status Standard event register byte becomes a “1.” Bit 6 is set to “1” when any of the CME EXE DDE QYERQCOPC other bits becomes a “1”...

  • Page 113: Extended Event Register

    10.3 Status Report Standard Event Register Operation Reading the Standard Event Register Standard event register is a register for the eight types command can be used to read the contents *ESR? of events that occur inside the instrument. When any of the standard event register.

  • Page 114: Output Queue And Error Queue

    10.3 Status Report 10.3.5 Output Queue and Error Queue Output Queue The output queue stores response messages for the queries. For example, when the controller sends a command requesting the output of measured :READ? data, data are stored in the output queue until they are read.

  • Page 115: Ascii Character Codes

    10.4 ASCII Character Codes ‘ ” & ’ < > (RUBOUT) Address Universal Listener Talker Secondary Command Command Address Address Command Example octal GP-IB code ASCII character code hexadecimal decimal 10-41 IM 755601-01E...

  • Page 116: About The Ieee.488.2-1992 Standard

    10.5 About the IEEE.488.2-1992 Standard The GP-IB interface of the instrument conforms to the IEEE 488.2-1992 Standard. This standard specifies that the following 23 points be stated in the document. This section will describe these points. 1 Of the IEEE 488.1 interface functions, the subsets that are supported See section 9.1, “GP-IB Interface Functions and Specifications.”...
  • Page 117 10.5 About the IEEE.488.2-1992 Standard 11 Size of the response data block 4 to 10000((1 + 4) × 2000) bytes 12 A list of supported common commands See section 10.2.18, “Common Command Group.” 13 Device condition after a successful calibration command is not supported.

  • Page 118: Chapter 11 Error Messages, Maintenance, And Inspection

    • For corrective actions when a message appears on the screen, read the following pages. • If servicing is required or if the instrument does not operate properly after taking the following corrective actions, contact your nearest YOKOGAWA dealer. Problem...

  • Page 119: Messages And Corrective Actions

    11.2 Messages and Corrective Actions Error Messages If an error occurs during operation, an error code (example: ) may appear on the screen. This section describes the meanings of the error messages and the corrective actions which they require. For errors that occur while operating the instrument remotely via the communication interface, the “...
  • Page 120 11.2 Messages and Corrective Actions Errors in communication execution (-200 to -299) Code Message Probable Cause/Corrective Action Page -221 Setting conflict Check the relevant setting values. Section 10.2 -222 Data out of range Check the setting range for dat.a Section 10.2 -223 Too much data Check the length of bytes of data.
  • Page 121 11.2 Messages and Corrective Actions Error in System Operation (901 to 905) Code Message Probable Cause/Corrective Action Page ROM checksum error Servicing is required – Backup lithium battery low Servicing is required for battery replacement. – Setup param. checksum error (other than comm.) Servicing is required –...

  • Page 122: Self Test

    11.3 Self Test Keys SETUP/MEAS HIGH STORE RECALL NORMAL FAST CHECK REMOTE LIMIT SPEED DATA DATA HI LIMIT MEAS& SHIFT EXIT LOCK TRIG SAMPLE MEAS LIMIT TRIG EXTERNAL TIME MODE MODE MΩ Ω M Ω MANUAL kΩ CHECK Ω REFERENCE LO LIMIT k Ω...
  • Page 123 Select “HAnd” at step 5. Explanation The self-test can be performed on the following items. If any part of the test fails, contact your nearest YOKOGAWA dealer. Key test Tests whether or not the front panel keys are operating correctly. If the correct number corresponding to the pressed key (00 to 18 correspond to the SHIFT key to the Ω/% key...

  • Page 124: Adjustments

    100 Ω to 100 kΩ ±15ppm 1 MΩ ±25 ppm 10 MΩ ±50 ppm 100 MΩ ±100 ppm Recommended instrument: 4808 (Fluke), 2792 (YOKOGAWA) Environment and Conditions while making the adjustment Ambient temperature: 23±1°C Relative humidity: 45 to 75%RH Supply voltage: 100 V±5%...
  • Page 125 L POT H POT H CUR Guard Note Use shielded wires, and connect the shield to the Guard terminal of the 4808. When using 2792 (by YOKOGAWA) Instrument being adjusted L CUR L POT H POT H CUR Standard resistor...
  • Page 126 11.4 Adjustments Completing the adjustment in the middle of the range Press the ENTER key when the adjustment range is blinking on the main display. “WritE” is displayed. When the ENTER key is pressed, the adjusted values existing in the range previous to that which was blinking are written to the EEPROM and the adjustment terminates.
  • Page 127 11.4 Adjustments Communication Commands Related to the Adjustment Method The functions in the CALibrate group are valid only during the range adjustment mode. Read pages 10-1 to 10-4 carefully before executing commands in this group. CANCel :CALibrate ADJust FULL <Resistance> RANGe <Space>...
  • Page 128 11.4 Adjustments :CALibrate:ADJust:RANGe :CALibrate:ADJust:ZERO Function Sets the adjustment range or queries the Function Executes the zero measurement on all ranges current setting. at once to determine the new zero adjustment Syntax value. :CALibrate:ADJust:RANGe {<Resistance>| Syntax DOWN|MIN} :CALibrate:ADJust:ZERO Example :CALibrate:ADJust:RANGe? :CALIBRATE:ADJUST:ZERO Description If the result of the zero measurement is <Resistance>...

  • Page 129: Replacing The Power Fuse

    11.5 Replacing the Power Fuse WARNING • To prevent the possibility of fire, use only a fuse having the specified rating (voltage, current, and type). • Make sure to turn OFF the instrument and unplug the power cord before replacing the fuse. •...

  • Page 130: Chapter 12 Specifications

    LOCAL key GP-IB connector Chapter 12 Specifications 12.1 Input Specifications Range When the measurement display is in absolute values (R) Range Maximum Display Resolution Test Current 755601 755611 755601 755611 1 Ω 1.2000 1.20000 100 µΩ 10 µΩ 100 mA 10 Ω...
  • Page 131 12.1 Input Specifications For 755611 (1 digit = 0.001%) • Accuracy 90 days after adjustment Range NORMAL FAST HIGH SPEED 1 Ω 0.012+10 0.012+20 0.012+30 10 Ω 0.01+3 0.01+10 0.01+20 100 Ω 0.008+3 0.008+10 0.008+20 1 kΩ 0.006+3 0.006+10 0.006+20 10 kΩ...

  • Page 132: Trigger Specifications

    12.2 Trigger Specifications Trigger mode: INTERNAL, EXTERNAL, MANUAL Trigger delay: Setting valid when the trigger mode is set to EXTERNAL or MANUAL Setting range: 0 to 1000 ms (resolution: 0.1 ms) Trigger edge: Select rising or falling edge Setting valid only when the trigger mode is set to EXTERNAL Trigger ignore time (Time until the next trigger becomes valid) Types of Measurement Time Trigger Input Ignore Time...

  • Page 133: Contact Check Specifications

    12.4 Contact Check Specifications Item Specifications Check level setting range 1 to 30 Ω (resolution: 1 Ω) Check time 2 ms Execution timing Select before or after the measurement Test current 50 mA When a contact check occurs Display : “–nC–” Determination : HI Handler interface...

  • Page 134: Other Specifications

    Display: “–CF–” Determination: Handler output: NO CONTACT, HI output 12.7 Handler Interface Specifications Connector For details contact your nearest YOKOGAWA dealer Signal Name Pin No. Signal Name Active Condition Input/Output Function/Operation Output L when the comparator result is HI. Output L when the comparator result is IN.

  • Page 135: Communication Specifications

    12.8 Communication Specifications Serial (RS-232) Interface Item Specifications Connector For details, contact your nearest YOKOGAWA dealer. Electrical specifications Conforms to the EIA-574 standard (for the 9-pin interface of the EIA-232 (RS-232) standard) Connection Point-to-point Communication Full-duplex Synchronization Start-stop synchronization Baud rate...
  • Page 136 12.9 General Specifications Item Specifications Emissions Complying standard EN61326-1 Class A EN55011 Class A, Group1 EMC Regulatory Arrangement in Australia and New Zealand EN 55011 Class A, Group 1 EN6100-3-2 EN6100-3-3 Korea Electromagnetic Conformity Standard 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 137: External Dimensions

    12.10 External Dimensions Unit: mm Rear View Unless specified otherwise, the tolerance is ±3%. However, in cases of less than 10 mm, the tolerance is ±0.3 mm. 12-8 IM 755601-01E...
  • Page 138 Index abbreviated form ............... 10-4 GET ..................9-4 absolute (R) mode .............. 4-1 GTL ..................9-4 address ................9-7 addressable mode .............. 9-7 adjustment ............11-7, 11-10 handler interface ..........1-3, 7-1, 10-18 handshaking method ........... 8-4, 8-8 header ................. 9-7 HI LIMIT ................
  • Page 139 Index main display ................ 2-1 SDC ..................9-4 MANUAL ................4-11 self test ............10-28, 10-35, 11-5 maximum common mode voltage ........12-2 sequential command ............10-7 maximum input voltage ............. 12-5 serial polling ................ 9-4 maximum load current ............12-5 SETUP mode ..........

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