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Solartron Analytical 1260 Operating Manual

Impedance/gain-phase analyzer
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Summary of Contents for Solartron Analytical 1260

  • Page 1 sales@artisantg.com artisantg.com (217) 352-9330 | Visit our website - Click HERE...
  • Page 2 1260 Impedance/Gain-Phase Analyzer OPERATING MANUAL 12600012_Gmacd/CB...
  • Page 3 1260 Impedance Gain-Phaze Analyzer Solartron is a division of Solartron Group Ltd. Any reference to Schlumberger or Schlumberger Instruments (the name of the company until November 1993) implies no liability on the part of Schlumberger. Solartron Issue CB: January 1996 Solartron Part No.
  • Page 4 1260 Impedance Gain-Phaze Analyzer Solartron a division of Solartron Group Ltd Victoria Road, Farnborough Hampshire GUI4 7PW England Tel +44 (0) 1252 376666 Fax +44 (0) 1252 543854 DECLARATION OF CONFORMITY The directives covered by this declaration 73123/EEC Low voltage Equipment Directive, amended by 93/68/EEC 89/336/EEC Electromagnetic Compatibility Directive, amended by 92/31/EEC &...
  • Page 5 1260 Impedance Gain-Phaze Analyzer GENERAL SAFETY PRECAUTIONS The equipment described in this manual has been designed in accordance with EN6 1010 ‘Safety requirements for electrical equipment for measurement, control and laboratory use’, and has been supplied in a safe condition. To avoid injury to an operator or service technician the safety precautions given below, and throughout the manual, must be strictly adhered to, whenever the equipment is operated, serviced or repaired.
  • Page 6 1260 Impedance Gain-Phaze Analyzer SAFETY PRECAUTIONS (continued from previous page) SAFETY SYMBOLS For the guidance and protection of the user, the following safety symbols appear on the equipment: SYMBOL MEANING Refer to operating manual for detailed instructions of use. Hazardous voltages.

  • Page 7: Table Of Contents

    1260 Impedance Gain-Phaze Analyzer Chapter 4: Menu Summary 1260 OPERATING MANUAL Menu Summary of: CONTENTS GENERATOR Chapter 1: Introduction ANALYZER SWEEP 1.1 Key Features DISPLAY 1.2 Use of the Manual PLOTTER 1.3 Specification PLOTTER AXES Chapter 2: Installation DATA OUTPUT 2.1 Accessories...
  • Page 8 1260 Impedance Gain-Phaze Analyzer 9.2.5 Group 4: Learnt Program; Chapter 7: Remote Control History File; Vernier Introduction 9.2.6 Group 5: Missing Modules GPIB Interface 9.2.7 Group 6: Illegal Input/Output 7.2.1 GPIB Capability Code 9.2.8 Group 7: System/Calibration 7.2.2 GPIB Connector 9.2.9 Group 8: Measurement Validity...
  • Page 9 Introduction Section Page Key Features Use of the Manual Specification 12600012_Gmacd/CB...

  • Page 10: Key Features

    Menu Terms 1260 Impedance Gain-Phaze Analyzer KEY FEATURES The 1260 Impedance/Gain-Phase Analyzer uses powerful microprocessor-controlled digital and analog techniques to provide a comprehensive range of impedance and frequency response measuring facilities. These include: Ø Single sine drive and analysis of the system or component under test over the frequency range 10µHz to 32MHz.

  • Page 11: Use Of The Manual

    1260 Impedance Gain-Phaze Analyzer Menu Terms USE OF THE MANUAL Chapter 2 Describes how to install the instrument. This procedure should be followed implicitly, to ensure safe and reliable operation of the instrument. Chapter 3 Introduces .the front panel controls and, by means of simple examples, shows you how to start using the instrument.

  • Page 12: Specification

    Menu Terms 1260 Impedance Gain-Phaze Analyzer 1260 SPECIFICATION These specifications will apply under any combination of stated operating conditions, such as temperature, humidity and signal type. They are guaranteed (not typical) and valid for one year after calibration. As part of the production procedure every instrument is thoroughly soak-tested, then autocalibrated to a tolerance better than that specified.
  • Page 13 1260 Impedance Gain-Phaze Analyzer Menu Terms Limits of Error Impedance Measurement Ambient temperature 20 ±10°C, integration time >200ms. Applies for stimulation level of 1V for impedances >50Ω or Single ended inputs with 50Ω termination, outer grounded. 20mA for impedances <50Ω, using 12601A.
  • Page 14 Menu Terms 1260 Impedance Gain-Phaze Analyzer DATA PROCESSING INTERFACES Scaling: normalization by measured spectrum Serial output: complies with RS 232 and RS 423 scaling by measured point baud rates: 110, 150, 300, 600 scaling by a complex constant 1200, 2400, 4800, 9600...
  • Page 15 Installation Section Page Accessories Safety 2.2.1 General Safety Precautions 2.2.2 Grounding Electromagnetic Compatibility Power Supply 2.4.1 Power Voltage Selector 2.4.2 Line Fuse 2.4.3 Power Cable 2.4.4 Connection Procedure Rack Mounting 2.5.1 Telescopic Slide Mounting Kit (Accuride) 2.5.2 Rack Dimensions 2.5.3 Ventilation 2.5.4 Fitting Telescopic Slide Mounting Kit (Accuride)

  • Page 16: Chapter 2: Installation

    Installation 1260 Impedance Gain-Phaze Analyzer CAUTION SAFETY BONDING TESTS (EN61010, clause 6.5.1.2 The analyzer input connectors and the generator output connector have driven screens (low terminal), which should not be subjected to a safety bonding test. Damage to the internal circuitry may be caused by the 25A test current, even when low terminal grounded is selected for single-ended operation.

  • Page 17: Accessories

    1260 Impedance Gain-Phaze Analyzer Installation ACCESSORIES The accessories supplied with the instrument are listed in Table 2.1. Item Fuse, 1A, Slo-blo, 20mmX 5mm Line fuse for 230V power supply Fuse, 2A, Slo-blo, 20mmX5mm Line fuse for 115V power supply Fuse, 750mA, Slo-blo, 8mmX6mm...

  • Page 18: Grounding

    Installation 1260 Impedance Gain-Phaze Analyzer power plug or external ground (as appropriate) must remain connected until all measuring and control circuits have been disconnected. 3. Any interruption of the ground connection (inside or outside the instrument) is prohibited. 4. When the instrument is connected to its supply the opening of covers or removal of parts could expose live conductors.

  • Page 19: Power Supply

    1260 Impedance Gain-Phaze Analyzer Installation POWER SUPPLY 2.4.1 POWER VOLTAGE SELECTOR The instrument can be powered from either a 115V or a 230V ac supply. Before connecting the instrument to the supply, proceed as follows: 1. Set the selector switch on the rear panel to correspond with the voltage of the local ac supply, i.e.

  • Page 20: Power Cable

    Installation 1260 Impedance Gain-Phaze Analyzer 2.4.3 POWER CABLE The power cable supplied has an IEC socket on one end (which mates with the power input plug on the instrument) and a power plug, compatible with power sockets in the country of destination, on the other end.

  • Page 21: Rack Mounting

    1260 Impedance Gain-Phaze Analyzer Installation RACK MOUNTING The instrument can be rack mounted in two ways: a) on fixed rails, that support the instrument from the underside of the case, b) on telescopic slides. Method b) allows easy withdrawal of the instrument for servicing.

  • Page 22: Fitting Telescopic Slide Mounting Kit (Accuride)

    Installation 1260 Impedance Gain-Phaze Analyzer 2.5.4 FITTING TELESCOPIC SLIDE MOUNTING KIT (ACCURIDE) 1. As shown in Figure 2.3, remove the following items from the instrument: a) Finisher Trim, Keep the four M4 X 16 panhead screws and M4 crinkle washers for securing the rack ears.
  • Page 23 1260 Impedance Gain-Phaze Analyzer Installation 2. As shown in Figure 2.4, fit the following items to the instrument: a) Rack Ears, Fit rack ears in place of the finisher trim, using the same fixings. The ears may be fitted in two ways: 1.
  • Page 24 Installation 1260 Impedance Gain-Phaze Analyzer c) Telescopic Slide Inner Members The telescopic slides are supplied with inner and outer members slotted together. Slide out the inner member as shown in Figure 2.5, depressing the locking catch at the halfway point.
  • Page 25 1260 Impedance Gain-Phaze Analyzer Installation b) Fixed Front Brackets and Support Brackets. Figure 2.7 - Fitting a front bracket and support bracket 4. Fit the M6 caged nuts for outer slide member and rack ear fixing into the rack, in the positions shown in Figure 2.8. The way to insert and remove caged nuts is shown in the figure detail.
  • Page 26 Installation 1260 Impedance Gain-Phaze Analyzer 5. Fit the outer slide members to the rack, as shown in Figure 2.9. Note that the tapped holes in the nut plate are positioned off-centre to provide maximum lateral adjustment. Fit the plates, as shown, with the holes offset towards the rack exterior.
  • Page 27 1260 Impedance Gain-Phaze Analyzer Installation 6. Finally, fit the instrument into the rack, as follows: a) Offer the instrument up to the rack and feed the inner telescopic slide members into the outer members, pushing the instrument into the rack until the locking catches engage and lock.

  • Page 28: Fitting Telescopic Slide Mounting Kit (Jonathan)

    Installation 1260 Impedance Gain-Phaze Analyzer 2.5.5 FITTING TELESCOPIC SLIDE MOUNTING KIT (JONATHAN) 1. As shown in Figure 2.10, remove the following items from the unit: a) Finisher Trim Retain the four M4 x 16 panhead screws and M4 crinkle washers for securing the rack ears.
  • Page 29 1260 Impedance Gain-Phaze Analyzer Installation 2. Fit the self-adhesive feet (four off) to the inside of the replacement case bottom, in the same positions as those in the original case bottom. 3. As shown in Figure 2.11, fit the following items to the instrument: a) Rack Ears Fit the rack ears in place of the finisher trim, using the same fixings.
  • Page 30 Installation 1260 Impedance Gain-Phaze Analyzer 2-16 12600012_Gmacd/CB...

  • Page 31: Introduction

    Getting Started Section Page Introduction Instrument Keyboard Power-up Status Display Using a Control Menu Making a Simple Measurement 3.6.1 Preliminaries 3.6.2 Connecting the Item Under Test 3.10 3.6.3 Setting the Analyzer 3.10 3.6.4 Setting the Generator 3.12 3.6.5 Commanding a Measurement 3.14 3.6.6 Setting the Display...
  • Page 32 Getting Started 1260 Impedance Gain-Phaze Analyzer 12600012_Gmacd/CB...
  • Page 33 1260 Impedance Gain-Phaze Analyzer Getting Started INTRODUCTION This chapter introduces the local control features of the instrument and shows you how to use them. The features of the front panel keyboard are described generally in Sections 2 through Then, three simple examples in Sections 6, 7, and 8 show: •...
  • Page 34 Instrument Keyboard A logically arranged keyboard and a simple menu structure make the instrument very easy to use. 1260 IMPEDANCE/GAIN-PHASE ANALYZER NUMERIC KEY PAD SELF TEST CLEAR POWER RESTORED NEXT PREV [TIME 00:00:05] SOFT KEYS ENTER SCALE / DATA LEARN...
  • Page 35 Table 3.1 - Hard key assignments GENERATOR Selects the Generator menu. This menu defines the drive signal SCALE/LIMITS Selects the Scale/limits menu. This menu contains: (Chap. 5, Sect. 1) applied to the item under test: constant voltage/current; frequency, (Chap. 5, Sect. 9) a) a measurement normalization facility;...

  • Page 36: Power-Up Status

    Getting Started 1260 Impedance Gain-Phaze Analyzer POWER-UP STATUS POWER On power-up the instrument is tested automatically and the resulting control status is indicated in a power-up message. This message is important and should be understood before using the instrument. The various messages which may be displayed are: POWER RESTORED The normal power-up message.

  • Page 37: Using A Control Menu

    1260 Impedance Gain-Phaze Analyzer Getting Started USING A CONTROL MENU A few simple steps are all that is necessary to use each control menu. You are guided through these by a clear display of the choices available, shown in brackets. The steps are: 1.
  • Page 38 Getting Started 1260 Impedance Gain-Phaze Analyzer numeric parameter entries are invited with round brackets, e.g. GENERATOR [GENERATOR] TYPE FREQ V.AMPL V.BIAS FREQ FREQ + 100.00000 Hz (+_ ) [ Hz] TYPE FREQ V.AMPL V.BIAS Also displayed is the present parameter value. Numeric values are keyed in from the numeric keypad and appear between the brackets as each number key is pressed.

  • Page 39: Making A Simple Measurement

    1260 Impedance Gain-Phaze Analyzer Getting Started MAKING A SIMPLE MEASUREMENT In this example the impedance of a simple C,R network is measured at a single defined frequency and the results of analysis are displayed. 3.6.1 PRELIMINARIES 1. Ensure that the instrument is correctly installed, as described in Chapter 2.

  • Page 40: Connecting The Item Under Test

    Getting Started 1260 Impedance Gain-Phaze Analyzer 3.6.2 CONNECTING THE ITEM UNDER TEST Items under test may be connected to the instrument either directly through the front panel terminals or through one of the test modules that fit over the terminals.
  • Page 41 1260 Impedance Gain-Phaze Analyzer Getting Started Press the OUTER soft key..OUTER ... to display the present OUTER OUTER [grounded] setting (The default setting is RANGE COUPLING INPUT OUTER [grounded].) Select the NEXT setting..NEXT OUTER [floating] ... i.e. OUTER [floating]..

  • Page 42: Setting The Generator

    Getting Started 1260 Impedance Gain-Phaze Analyzer 3.6.4 SETTING THE GENERATOR Set the generator parameters to provide a suitable drive for the item under test (IUT). Remember that the drive specified must satisfy: • the generator output capability, • the rating of the JUT, and •...
  • Page 43 1260 Impedance Gain-Phaze Analyzer Getting Started ... and ENTER it. ENTER The menu title is displayed again, showing that entry is complete. An [GENERATOR] attempt to enter an unsuitable value results in an error message, and the TYPE FREQ V.AMPL V.BIAS...

  • Page 44: Commanding A Measurement

    Getting Started 1260 Impedance Gain-Phaze Analyzer 3.6.5 COMMANDING A MEASUREMENT Once the generator and analyzer have been set up it is possible to command a measurement and get some sensible results. SINGLE Press the SINGLE key ... “p” indicates a parallel network 12.500000 kHz...
  • Page 45 1260 Impedance Gain-Phaze Analyzer Getting Started ... enter it, to display the present ENTER coordinate setting... COORDS [L(or C),R] ... which is for the component values L(or C),R. VARIABLE RESULT PHASE CIRCUIT PREV Now select the previous setting... COORDS [ Z,θ...

  • Page 46: Using The Sweep Facility

    Getting Started 1260 Impedance Gain-Phaze Analyzer USING THE SWEEP FACILITY SWEEP allows any one of the generator output parameters, frequency, amplitude, or bias, to be stepped through a range of settings, a new setting being used for each measurement. The basic data of the series of measurements thus made are held in the history file and may be reviewed with the VIEW FILE facility.
  • Page 47 1260 Impedance Gain-Phaze Analyzer Getting Started ∆LOG Then press the ENABLE soft key..to display the present ‘enable’ ∆LOG setting. Thissetting selects the 200.00 pts/swp (+_ ) pts/swp generator output parameter to be ∆LOG ∆LIN ENABLE UP/DOWN swept and, for frequency sweeps, log or linear steps.

  • Page 48: Effect Of Sweep On Generator Loading

    Getting Started 1260 Impedance Gain-Phaze Analyzer ... select the next frequency units... NEXT F.MAX 1.0000000 MHz (+_ ) [kHz] ... i.e. kHz... FREQ V.AMPL V.BIAS I.AMPL I.BIAS ...key in a maximum frequency value of ... F.MAX 1.0000000 MHz (+900_ ) [kHz] ...

  • Page 49: Preparing The History File

    1260 Impedance Gain-Phaze Analyzer Getting Started 3.7.2 PREPARING THE HISTORY FILE The flow of data to the history file is controlled from the DATA OUTPUT menu. For the present example the default settings are used. As a result: Ø the file is cleared automatically at the beginning of sweep..
  • Page 50 Getting Started 1260 Impedance Gain-Phaze Analyzer VIEW Press VIEW FILE... FILE VIEW FILE ... to access the file control keys. DISPLAY LIST CLEAR DISPLAY Then press DISPLAY... nnn.nn Ω 100.00000 Hz nnn.nn dg ... to display a result from line #1...

  • Page 51: Using The Plot Facility 3

    1260 Impedance Gain-Phaze Analyzer Getting Started USING THE PLOT FACILITY With the present example a Z,θ plot may be made of the sweep results (stored in the history file) simply by pressing the PLOT key. This assumes, of course, that a digital plotter, suitably set up, is connected to the instruments GPIB interface.

  • Page 52: Commanding The Bode Plot

    Getting Started 1260 Impedance Gain-Phaze Analyzer 3.8.1.2 Commanding the Z,θ θ plot Press the PLOT key and the pen should move from the parking position to the top right corner of the plotting area; this shows that something is happening. Then, after a short “thinking”...

  • Page 53: Setting The Plotter Axes

    1260 Impedance Gain-Phaze Analyzer Getting Started ... enter it, to display the present ENTER coordinate setting..COORDS [ Z,θ ...which is for the polar coordinates of impedance, Z, θ. VARIABLE RESULT PHASE CIRCUIT PREV Now select the previous setting... COORDS [ ...
  • Page 54 Getting Started 1260 Impedance Gain-Phaze Analyzer ITEM [ par 1 ] ... which is [ par 1 ], the real coordinates... ITEM LIMITS LIN/LOG ... and enter it. ENTER [PLOTTER X-AXIS] The menu title is displayed again, to show that entry is complete.
  • Page 55 1260 Impedance Gain-Phaze Analyzer Getting Started [PLOTTER Y-AXIS OVERLAY] ...which is for the Y-axis overlay... ITEM LIMITS LIN/LOG ITEM Press the ITEM soft key... ITEM [ par 2 ] ... to display the present item assigned to the Y-axis overlay.

  • Page 56: Commanding The Nyquist Plot

    Getting Started 1260 Impedance Gain-Phaze Analyzer 3.8.2.3 Commanding the R,X Plot To start the R,X plot press the PLOT key: PLOT 3-26 12600012_Gmacd/CB...
  • Page 57 Menu Summary Section Page Menu Summary Generator Analyzer Sweep Display Plotter Plotter Axes Data Output Scale/Limits View File Vernier Status Store/recall Learn Program Self Test 12600012_Gmacd/CB...

  • Page 58: Chapter 4: Menu Summary

    Menu Summary 1260 Impedance Gain-Phaze Analyzer MENU SUMMARY This summary is intended as a memory aid for experienced users. Numeric parameters are indicated by round brackets. The generator output frequency, for example, appears thus: FREQ (+ ) Where applicable, the range and default values of a numeric parameter are shown against it.

  • Page 59: Generator

    1260 Impedance Gain-Phaze Analyzer Menu Summary MENU PARAMETER SETTINGS [voltage] • current GENERATOR TYPE (+ ) [Hz] • kHz • MHz • pHz • mHz FREQ 10µHz to 32 MHz default = 100Hz (+ ) [V] • mV 0V to 3V (f < 10MHz) V.

  • Page 60: Sweep

    Menu Summary 1260 Impedance Gain-Phaze Analyzer MENU PARAMETER SETTINGS ANALYZER Cont [auto] • 30mV • 300mV • 3V RANGE [INPUT V2] • ac COUPLING [dc] [single] • diff. INPUT [grounded] • floating OUTER [auto] • 6µA • 60µA • 600µA • 6mA • 60mA...

  • Page 61: Display

    1260 Impedance Gain-Phaze Analyzer Menu Summary MENU PARAMETER SETTINGS [freq] • ampl • bias DISPLAY VARIABLE RESULT SOURCE [Z1 = V1/I] Enter for COORDS: [L(or C),R] • L(or C),Q • L(or C),D • R,X • Z,θ • Y1 = I/V1 Enter for COORDS: [L(or C),R] •...

  • Page 62: Plotter Axes

    Menu Summary 1260 Impedance Gain-Phaze Analyzer MENU PARAMETER SETTINGS PLOTTER AXES [variable] • par 1 • par 2 ITEM [PLOTTER [auto] • manual • LIMITS X-AXIS] *MINIMUM (+ ) -999 x 10 to +999 x 10 *MAXIMUM (+ ) -999 x 10 to +999 x 10 [auto] •...

  • Page 63: Scale/Limits

    1260 Impedance Gain-Phaze Analyzer Menu Summary MENU PARAMETER SETTINGS DATA O/P Cont. [normal] • group delay FORMAT [FILE [auto] • manual CLEAR CONFIGURE] [par 1] • par 2 STATS SCALE/LIMITS [SCALING] [off] • on • evaluate NORM. [off] • on • evaluate...

  • Page 64: View File

    Menu Summary 1260 Impedance Gain-Phaze Analyzer MENU PARAMETER SETTINGS VIEW FILE DISPLAY Display file location #1. Go to beginning of file. Go to end of file. NEXT Go to next line (line n + 1). PREV Go to previous line (line n - 1).

  • Page 65: Store/Recall

    1260 Impedance Gain-Phaze Analyzer Menu Summary MENU PARAMETER SETTINGS STORE/ RECALL STORE ( )* Store control set-ups in location n. [SET UP] RECALL ( )* Recall control set-ups in location n. CLEAR ( )* Delete control set-ups in location n.
  • Page 66 Menu Summary 1260 Impedance Gain-Phaze Analyzer 4-10 12600012_Gmacd/CB...

  • Page 67: Selftest

    Menu Terms Section Page Generator Analyzer Sweep 5.12 Display 5.15 Plotter 5.18 Plot 5.23 Plotter Axes 5.24 Data Output 5.27 Scale/limits 5.31 5.10 View File 5.37 5.11 Vernier 5.38 5.12 Status 5.41 5.13 Store/recall 5.47 5.14 Learn program 5.48 5.15 Self test 5.50 12600012_Gmacd/CB...
  • Page 68 Menu Terns 7835/45/46/47 Technical Manual BIAS + AC peak AC(f>10MHz) AC(f≤10MHz) Current Limit of Generator Output The current limit curves shown above result from the voltage compliance limit of the current generator (3 volts rms) and the amplitude limit (60mA for 10MHz and below; 20mA for above 10MHz).

  • Page 69: Generator

    7835/45/46/47 Technical Manual Menu Terms GENERATOR The generator drives the item under test (IUT). The drive signal parameters are shown in Figure 5.1. Figure 5.1 - Drive signal parameters 5.1.1 [GENERATOR] Type of drive and constant voltage drive parameters. TYPE Selects constant voltage or constant current drive: •...
  • Page 70 Menu Terns 7835/45/46/47 Technical Manual 5.1.2 [GENERATOR Cont] Type of drive and constant current drive parameters. TYPE Selects constant voltage or constant current drive. Duplicate of TYPE in Section 1.1 above. FREQ Frequency of generator output. Duplicate of FREQ in Section 1.1 above. I AMPL Constant current ac amplitude, in the range 0mA to 60mA rms (ƒ...
  • Page 71 7835/45/46/47 Technical Manual Menu Terms Figure 5.2 - Simplified schematic of monitor feedback configurations 5.1.5 GENERATOR START AND STOP CONTROL The generator output is switched on, and stays on, when a measurement, SINGLE or RECYCLE, is commanded or when NULL [evaluate] or NORMALIZE [evaluate] is commanded.

  • Page 72: Analyzer

    Menu Terns 7835/45/46/47 Technical Manual ANALYZER The analyzer correlates the input signals V1,V2, and I at the drive signal frequency to obtain the frequency response and impedance of the item under test. From these basic measurement data the instrument can compute many different results in various formats: you select the result of your choice from the DISPLAY menu.
  • Page 73 7835/45/46/47 Technical Manual Menu Terms 5.2.1.3 AUTO ∫ ∫ Auto integration. Selects an integration time in keeping with the interference on a selected input. Measurement continues, within the ∫ TIME period, until the standard deviation of the input data reaches a target value: •...
  • Page 74 Menu Terns 7835/45/46/47 Technical Manual 5.2.1.4 MODE Selects a measurement mode suitable for the results to be displayed (see Section 4). • [normal] Single measurement. Used for all displayed functions, except r,t, r(dB), t, and auto circuit. • [group delay] Triple measurement.
  • Page 75 7835/45/46/47 Technical Manual Menu Terms 5.2.2 [INPUT V1] Parameters of the analyzer VOLTAGE 1 input. 5.2.2.1 RANGE Auto ranging or a fixed range can be used: • [auto] Auto ranging selects the most accurate range for the signal amplitude being measured.
  • Page 76 Menu Terns 7835/45/46/47 Technical Manual 5.2.2.3 INPUT AND OUTER These settings select the internal connections between the Hi and Lo voltage inputs and the analyzer input amplifier: 5.2.3 [INPUT V2] Same parameters as for [VOLTAGE 1] , but applicable to the VOLTAGE 2 input. 5-10 12600012_Gmacd/CB...
  • Page 77 7835/45/46/47 Technical Manual Menu Terms 5.2.4 [INPUT I] Parameters of the analyzer CURRENT input. 5.2.4.1 RANGE Auto ranging or a fixed range can be used: • [auto] Auto ranging selects the most accurate range for the signal amplitude being measured. Each measurement starts on the most sensitive range. If an overload is detected the result is discarded and measurement restarts on the next range up;...

  • Page 78: Sweep

    Menu Terns 7835/45/46/47 Technical Manual SWEEP SWEEP allows any one of the generator output parameters, frequency, amplitude, or bias, to be stepped through a range of settings, a new setting being used for each measurement. 5.3.1 [SWEEP] Selection of sweep type, direction, and resolution. 5.3.1.1 ENABLE Sweep type: •...
  • Page 79 7835/45/46/47 Technical Manual Menu Terms 5.3.1.4 ∆ ∆ LIN Numeric entry which defines, for a [lin freq] sweep. • [pts/swp] The number of points per sweep. • [unit/st] The number of units per step. The “units” are Hz on frequency sweeps and volts or amps on amplitude or bias sweeps.
  • Page 80 Menu Terns 7835/45/46/47 Technical Manual 5.3.2.3 V. BIAS Voltage bias limits: V MIN ( ) Minimum bias, in the range - 40.95V to +40.95V. V MAX ( ) Maximum bias, in the range - 40.95V to +40.95V. 5.3.2.4 I. AMPL Current amplitude limits: I MIN ( ) Minimum amplitude, in the range:...

  • Page 81: Display

    7835/45/46/47 Technical Manual Menu Terms DISPLAY DISPLAY acts on the basic measurement data, obtained either from the analyzer or from the history file. These data are the amplitudes of the signals present at the V1, V2, and I inputs of the analyzer, and their phase relations. Various combinations of the data can be selected and the measurement results derived from them can be output in different forms.
  • Page 82 Menu Terns 7835/45/46/47 Technical Manual Table 5.1 - Measurement Source and Displayed Coordinates → → COORDS→ → SOURCE θ [Z1=Vl/I] [L(orC),R] L(orC),Q L(orC),D θ Y1=I/V1 L(orC),Q L(orC),D [L(orC),R] θ Z2=V2/I [L(orC),R] L(orC),Q L(orC),D θ Y2=I/V2 L(orC),Q L(orC),D [L(orC),R] θ θ θ...
  • Page 83 7835/45/46/47 Technical Manual Menu Terms 5.4.1.4 CIRCUIT The form of the circuit being measured, defined for SOURCE set to Z1, Y1, Z2, or Y2: • [parallel C,R] Capacitor and resistor in parallel. • [auto] With MODE in the ANALYSIS menu set to auto impedance the instrument automatically ascertains the form of the circuit being measured and displays component values for that form: a “p”...

  • Page 84: Plotter

    Menu Terns 7835/45/46/47 Technical Manual PLOTTER Measurement results can be plotted on a suitable digital plotter. The PLOTTER menu gives a choice of graphics language, plot size and trace, and on/off control of text, grid and axes. 5.5.1 [PLOTTER] Trace, text, grid, axes, and graphics language selection. 5.5.1.1 MODE Type of trace: •...
  • Page 85 7835/45/46/47 Technical Manual Menu Terms 5.5.1.4 AXES On/off control of text, grid and axes: • [off] Results alone are plotted; no text, grid or axes. • [on] Depending on the TEXT and GRID selections, plots may be made in the following styles: 5.5.1.5 DEVICE Plotting device:...
  • Page 86 Menu Terns 7835/45/46/47 Technical Manual 5.5.2.2 X-MIN, Y-MIN, X-MAX, Y-MAX Coordinates which define the plotting field, as shown in Fig 5.11. The coordinates can be set in the range 0 to 32000 units. One unit = 0.025mm, measured from the reference origin.
  • Page 87 7835/45/46/47 Technical Manual Menu Terms 5.5.3.1 TITLE ENTRY Characters are copied from the group in square brackets in the top left hand corner of the display. For each character to be copied the procedure is: 1. Select the group in which the character appears. Four different groups can be selected with NEXT or PREV: [ WXYABCDE ] upper case alpha characters,...
  • Page 88 Menu Terns 7835/45/46/47 Technical Manual 4. Repeat steps 1 to 3 until complete title is copied, then ENTER it. [klmnopqrs] <Group Delay Test No 10_ > <- -> COPY <-- --> ENTER Note that numbers may be keyed in from the keypad. Spaces may be created in a blank title space simply by moving the cursor with the right-hand “-->”...

  • Page 89: Plot

    7835/45/46/47 Technical Manual Menu Terms COPY COPY it and... [LMNOPQRST] <Group Delay Pest No 10 > ...”P” appears in place of “T” in the plot title. <- -> COPY <-- --> Now select the lower case letters in the square COPY <- <-...

  • Page 90: Plotter Axes

    Menu Terns 7835/45/46/47 Technical Manual PLOTTER AXES The displayed variable and the two result parameters, par 1 and par 2, can be assigned individually to any of the plotter axes. The relationship between displayed and plotted results for the default plotter axes settings is shown in Figure 5.10. PAR 2 VARIABLE PAR 1...
  • Page 91 7835/45/46/47 Technical Manual Menu Terms 5.7.1.2.1 MINIMUM and MAXIMUM These two settings define the full-scale range of an X-coordinate, when LIMITS is set to manual. A similar pair of values is defined for the Y-axes and the overall effect is as shown in Figure 5.11.
  • Page 92 Menu Terns 7835/45/46/47 Technical Manual 5.7.4 PLOT TYPES The ability to assign any display item to any plot axis allows a wide variety of plot types to be set up. A Bode plot, for example, is obtained with the settings [r(dB), θ] Ø...

  • Page 93: Data Output

    7835/45/46/47 Technical Manual Menu Terms DATA OUTPUT DATA OUTPUT selects: Ø the data output ports, Ø the data to be output, and Ø the data format. 5.8.1 [DATA OUTPUT] As well as being displayed, the measurement results may be output through any combination of the RS423 port, the GPIB port, and the history file.
  • Page 94 Menu Terns 7835/45/46/47 Technical Manual 5.8.1.1 HEADING Headings can be included in the data that are output to RS423 and the GPIB. Headings are intended for use with printers and VDUs, when data are presented in tabular form. A heading is assigned to each column to indicate the data type, units, etc. •...
  • Page 95 7835/45/46/47 Technical Manual Menu Terms 5.8.3 [RS423 CONFIGURE] RS423 parameters. Note that the RS423 port is intended mainly for data output to a printer, VDU, etc. Use it for limited remote control of the instrument only if you are fully conversant with RS423 protocol.
  • Page 96 Menu Terns 7835/45/46/47 Technical Manual 5.8.3.5 XOFF/XON Transmit off/transmit on software handshake facility. • [enable] handshake enabled; XOFF and XON used. • [disable] handshake disabled; XOFF and XON not used. This selection governs the use of the XON/XOFF code by the instrument, i.e. whether or not the instrument outputs the command to a device sending data to it.

  • Page 97: Scale/Limits

    7835/45/46/47 Technical Manual Menu Terms SCALE/LIMITS Under SCALE/LIMITS five functions are available: Ø Swept measurements may be normalized to separate the results of interest from background data. Ø Effect - of stray capacitance and inductance on the measurement results may be compensated for with the null facility.
  • Page 98 Menu Terns 7835/45/46/47 Technical Manual 5.9.1.2 NULL* Null on/off/evaluate: • [off] Null not applied. • [on] Effect of stray inductance and capacitance on measurement results is removed in accordance with previously evaluated null values. • [evaluate] Starts the null procedure, which is: 1.
  • Page 99 7835/45/46/47 Technical Manual Menu Terms LEARN displays a choice of variables and operators which the user may use to build up a scaling function. To ensure correct syntax, only valid choices are shown. CLEAR deletes the specified function, ready for the entry of a new function under the same number.
  • Page 100 Menu Terns 7835/45/46/47 Technical Manual 5.9.3.1 ENABLE The sorting method. This may be chosen from: • [off] No sorting done. • [continuous] Every component sorted. • [fixed count] Every nth component sorted. (n = STEP SIZE.) • [random] Random sort, within a maximum step size. 5.9.3.2 ITEM The display parameter sorted.
  • Page 101 7835/45/46/47 Technical Manual Menu Terms 5.9.4.1 RETRY Enter the maximum number of times each component is to be measured in an attempt to obtain a pass result. 5.9.4.2 LEVELS The voltage levels required to drive the component test machine. • [+5V] Drive levels are +5V and 0V.
  • Page 102 Menu Terns 7835/45/46/47 Technical Manual If the value of the sorted parameter is outside all specified tolerance bands then “99” is displayed to signify that the component has failed. The identity of the bin select line asserted is one greater than that of the number of bins. This line may be used to energise the fail trap on a mechanical sorter or, with manual sorting, to illuminate the fail bin.

  • Page 103: View File

    7835/45/46/47 Technical Manual Menu Terms 5.10 VIEW FILE VIEW FILE acts on the basic measurement data stored in the history file. The form of the output results is selected from the DISPLAY menu (see Section 4). 5.10.1 [VIEW FILE] DISPLAY Displays file location #1.

  • Page 104: Vernier

    Menu Terns 7835/45/46/47 Technical Manual 5.11 VERNIER Use VERNIER to adjust the generator output, whether measurements are being made or not. VERNIER can also be used to adjust the size of the plotting field, whilst watching the pen movement. 5.11.1 ADJUSTING GENERATOR PARAMETERS: FREQ, AMPL, OR BIAS The generator parameter on which the vernier is to act is selected from the first menu page.
  • Page 105 7835/45/46/47 Technical Manual Menu Terms 5.11.2 ADJUSTING PLOTTER SCALING Plotter scaling can be adjusted with the second [VERNIER] menu, which is selected with the NEXT key. (For this facility to work, [plotter] must be selected for the data output to the GPIB;...
  • Page 106 Menu Terns 7835/45/46/47 Technical Manual 5.11.5 REMOTE CONTROL OF THE VERNIER Vernier control of the generator parameters frequency, amplitude and bias is selected with the commands V0, V1 and V2. In reply to each of these commands the instrument outputs the present parameter value. The controller can then use the step vernier command SPF to increment or decrement the value accordingly.

  • Page 107: Status

    7835/45/46/47 Technical Manual Menu Terms 5.12 STATUS The STATUS pages display control information not accessible under other control keys. Two leader pages [ STATUS 1 ] and [ STATUS 2 ] display the information sources; each source has available several pages of information. Pages are selected with NEXT and PREV.
  • Page 108 Menu Terns 7835/45/46/47 Technical Manual 5.12.1.2 µ µ P Microprocessor status. (Two pages.) Page 1:Microprocessor Operation PROCESSOR MODE LAST ERROR NORMAL 00 00 00 Learn Program mode. Selected by the rear panel switch: Code numbers of last three errors detected. SUPERVISOR All learn program facilities can be used, with all programs.
  • Page 109 7835/45/46/47 Technical Manual Menu Terms Page 2: GPIB status Serial poll byte, parallel poll identity and sense, and control state: GPIB SER POLL PAR POLL CONTROL 00000011 local Serial poll status byte. Each bit Parallel poll Poll sense, true Control state of the impedance represents a specific ‘event’, for (T) or false (F).
  • Page 110 Menu Terns 7835/45/46/47 Technical Manual 5.12.1.5 FILE History file status. (Two pages) Page 1: File Summary Number of measurements made, accepted (passed limits test) and filed: FILE SUMMARY READINGS 50 ACCEPTED 47 FILED 47 Number of measurements made, with Number of measurements filed. Number of measurements [DATA OUTPUT] FILE set to all, fail, that have passed the limits...
  • Page 111 7835/45/46/47 Technical Manual Menu Terms Page 2: Function Slots In Use in Non-Volatile Program Memory Numbered function slots NV FUNCTION 10 17 18 LEARNT F = function learnt Page 3 to 20: Function stored FUNCTION 1 V!^2 5.12.2.2 CONST Scaling constant stores in use, and constants stored. (Ten pages.) Numbered constant slots CONSTANT ENTERED...
  • Page 112 Menu Terns 7835/45/46/47 Technical Manual Page 2: Stored Results RESULT STORE 1 g. delay = 5.3479ns a = 13.567 b = 1.259 5.12.2.4 STATS Statistics of measurements stored in history file. (Two pages) MEAN MINIMUM MAXIMUM COUNT STANDARD DEV VARIANCE The results from which the statistics are to be derived are selected as Par 1 or Par 2, from STATS in the FILE CONFIGURE menu.

  • Page 113: Store/Recall

    7835/45/46/47 Technical Manual Menu Terms 5.13 STORE/RECALL Control set-ups, and measurement results, can be stored in memory for later use. 5.13.1 [SET UP] Sixteen locations are available for control set-ups. Control set-up action: STORE Stores the present settings of all control parameters, in any free location from 1 through 16.

  • Page 114: Learn Program

    Menu Terns 7835/45/46/47 Technical Manual 5.14 LEARN PROGRAM LEARN PROGRAM allows the instrument to be programmed with a series of commands. A maximum of eighteen separate programs can be stored, and each is started from EXECUTE PROGRAM. See program STATUS (Section 12.1) for memory availability.
  • Page 115 7835/45/46/47 Technical Manual Menu Terms 5.14.5 PROGRAM KEYSWITCH The setting of the PROGRAM keyswitch on the rear panel determines the use of the non-volatile memory for learn programs. Two switch positions are used: a) SUPERVISOR Learn programs may be stored in, or recalled from, any location, from 1 through 18.

  • Page 116: Selftest

    Menu Terns 7835/45/46/47 Technical Manual 5.15 SELF TEST Under SELF TEST, four functions are available: 5.15.1 TEST Checks the operation of the measurement hardware, the microprocessor, the keyboard, and the display. On entry, the microprocessor is tested first. Then a test is made on the display. The first stage of the display test starts immediately, but user action is required to progress through the remaining stages.
  • Page 117 7835/45/46/47 Technical Manual Menu Terms 5.15.2 INIT Sets the control parameters to the default state, clears the history file, the result/control stores and learn program memory, and displays ‘INITIALIZED’. CAUTION: The content of the non-volatile stores and program memory is cleared if the PROGRAM keyswitch is set to SUPERVISOR when INIT(ialize) is commanded.

  • Page 118: Introduction

    Measurement Connections Section Page Introduction Analyzer Input Configurations 6.2.1 Single-ended Inputs 6.2.2 Differential Inputs High Frequency Measurements Equivalent Circuits Basic Connections for In-circuit Impedance Measurements 6.5.1 Cable Lengths The Test Modules 6.6.1 12601A Component Test Module 6.6.1.1 Component Clamps 6.6.1.2 Fitting and Removing the Test Module 6.6.1.3 Test Module Connections 6.6.2 12603A In-Circuit Test Module...
  • Page 119 Measurement Connections 1260 Impedance Gain-Phaze Analyzer 12600012_Gmacd/CB...
  • Page 120 1260 Impedance Gain-Phaze Analyzer Measurement Connections INTRODUCTION Connections to the item under test are made from BNC sockets on the instrument front panel. The GENERATOR output is connected to the input of the item under test, and three input channels, VOLTAGE 1, VOLTAGE 2, and CURRENT, are available for measuring the test response.
  • Page 121 Measurement Connections 1260 Impedance Gain-Phaze Analyzer A floating screen can accomodate a limited common mode signal from the item under test. Figure 6.2 - Single-ended input configuration, with a) floating screen and b) grounded screen 6.2.2 DIFFERENTIAL VOLTAGE INPUTS Differential inputs may be used where the signal to be measured has a reference point separate from the general ground.

  • Page 122: High Frequency Measurements

    1260 Impedance Gain-Phaze Analyzer Measurement Connections The connections made for differential inputs, floating or grounded screen, are shown in Figure 6.4. Figure 6.4 - Differential input configuration, with a) floating screen and b) grounded screen HIGH FREQUENCY MEASUREMENTS For drive frequencies in the region of 1MHz and above, care must be taken to match the input and output impedances of the instrument and item under test with the impedance of the connecting cables (50Ω).

  • Page 123: Equivalent Circuits

    Measurement Connections 1260 Impedance Gain-Phaze Analyzer EQUIVALENT CIRCUITS The equivalent circuits of the generator output and the analyzer inputs are given in Figures 6.6 and 6.7. These may be used when estimating loading effects on a) the item under test and b) the generator output.

  • Page 124: Basic Connections For In-Circuit Impedance Measurements

    1260 Impedance Gain-Phaze Analyzer Measurement Connections BASIC CONNECTIONS FOR IN-CIRCUIT IMPEDANCE MEASUREMENTS The basic connections for in-circuit impedance measurements are shown in figure 6.8. This is intended as a guide when connections are made other than through a test module, e.g. in automatic test systems.

  • Page 125: The Test Modules

    Measurement Connections 1260 Impedance Gain-Phaze Analyzer THE TEST MODULES Two types of impedance test module are available: the 12601A module, for testing loose components, and the 12603A module, for measuring components in-circuit. Both types are available as options. 6.6.1 12601A COMPONENT TEST MODULE The 12601A component test module makes it easy to connect loose components to the instrument front panel terminals.

  • Page 126: Fitting And Removing The Test Module

    1260 Impedance Gain-Phaze Analyzer Measurement Connections 6.6.1.2 FITTING AND REMOVING THE TEST MODULE The test module fits onto the four upper BNC terminals on the instrument front panel and is locked onto these by a pair of lever-operated connectors. To fit the module, set the levers to UNLOCK,...

  • Page 127: 12603A In-Circuit Test Module

    Measurement Connections 1260 Impedance Gain-Phaze Analyzer 6.6.3 12603A IN CIRCUIT TEST MODULE The 12603A test module allows components to be measured in-circuit. The effect of parallel component networks may be eliminated by using virtual earth guarding. The 12603A is not recommended for use above 1MHz.
  • Page 128 Remote Control: GPIB & RS423 Section Page Introduction GPIB Interface GPIB Capability Code 7.2.2 GPIB Connector 7.2.3 GPIB Switches 7.2.3.1 Device Address 7.2.3.2 Input Command Terminator 7.2.3.3 Talk Only 7.2.3.4 Example of GPIB Switch Settings 7.2.4 Output to the GPIB 7.2.4.1 ASCII Output to a Talk Only Device 7.2.4.2 Normal ASCII Output (for Talker-listener Devices) 7.2.4.3 GPIB Dump Output...
  • Page 129 Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer 12600012_Gmacd/CB...

  • Page 130: Introduction

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 INTRODUCTION The instrument is fitted, as standard, with a GPIB interface and an RS423 interface, for communication with remote devices. Full control and data input/output is possible through the GPIB. RS423 is intended mainly for data output to a printer, VDU, etc, but, if the user is fully conversant with RS423 protocol, limited control of the instrument may, in some cases, be possible.

  • Page 131: Gpib Switches

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer 7.2.3 GPIB SWITCHES Some interface functions are set by miniature toggle switches on the rear panel of the instrument. These functions are described below. (The remaining interface functions are set from the [GPIB CONFIGURE] menu.) The GPIB switches are shown in Fig 7.2.

  • Page 132: Output To The Gpib

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 EOI is one of the five GPIB management lines. Some controllers automatically assert EOI accompanied by a command terminator. In this case, select “EOI” with switches F1 and F2. If the controller itself offers a choice of command terminator, choose carriage return, line feed, or semicolon: this prevents command data being lost or corrupted.

  • Page 133: Ascii Output To A Talk Only Device

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer 7.2.4.1 ASCII Output to a Talk Only Device When the instrument is set for talk only operation (TALK ONLY switch set to ON) the format of ASCII data output to the GPIB is the same as for data output to an RS423 printer.

  • Page 134: Serial Poll/ Parallel Poll: Gpib

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 The full precision of the frequency setting cannot be represented in the 4-byte version of the IEEE 754 format. So, if full precision is required, a separate FR? command should be sent. The frequency can then be read in ASCII format.

  • Page 135: Service Request Enable

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer Event Comments Event status byte. Set when there is a correspondence between one or more of the bits set in the event status register and one or more of the bits set in the event status enable register.

  • Page 136: Assigning Error Events

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 Once the instrument has requested service, the service request enable register must be set up again before another request can be made. The command *SREn with which this is done also resets the RQS bit (bit 64) in the status register.

  • Page 137: Parallel Poll

    Enables the instrument to set the operation complete bit in the event status register when the idle state is next entered. *IDN? Instrument outputs the identifier string “ 1260 IMPEDANCE ANALYZER, SOLARTRON, 0, 0” *TST? Starts a self test, on completion of which the instrument outputs the result: “0”...

  • Page 138: Serial Interface

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 SERIAL INTERFACE The serial interface is suitable for use with printers, display units and keyboards compatible with RS232 and RS423. 7.3.1 DATA HANDSHAKE The instrument supports XON/XOFF data handshake. The.ASCII commands XON (transmit on) and XOFF (transmit off) are recognised when outputting data to an external device.

  • Page 139: Output To Serial Interface

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer Pin 1 = Ground Pin 4 = RTS (Request to Send) Pin 7 = Ground Pin 2 = Serial Data to instrument Pin 5 = CTS (Clear to Send) Pin 8 = DCD (Data Carrier Detect)

  • Page 140: Ascii Output To A Controller

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 7.3.6.2 ASCII Output to a Controller The controller format, selected from [RS 423 CONFIGURE] MODE, is the same as that of the ASCII output to a talker/listener on the GPIB (see Section 7.2.4.2). The output terminator and separator are selected from the [R5423 CONFIGURE] menu (Chapter 5, Section 5.8.3).

  • Page 141: Dump Output Format, For Rs423 And Gpib

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer DUMP OUTPUT FORMAT, for RS423 and GPIB There are two types of dump output, dump and dump all. The binary numbers which make up these outputs are all in IEEE 754 standard format.

  • Page 142: Floating Point Format

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 7.4.3 FLOATING POINT FORMAT (“Dump” and “Dump All” Data) The floating point format conforms to the ANSI / IEEE Standard 754. It consists of a 4-byte (32 bit) floating point number, as shown below:...

  • Page 143: Remote/Local Control

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer REMOTE/LOCAL CONTROL The REMOTE/LOCAL facility enables the instrument to receive commands from either a remote or a local source. The remote facility is provided by the GPIB interface and has priority over local control.

  • Page 144: Local Lockout

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 7.5.1 LOCAL LOCKOUT The remote/local facility can have a local lockout condition superimposed by a command from the GPIB controller. Once local lockout is applied, control can be transferred only by the controller.

  • Page 145: Combined Use Of Rs423 And Gpib Devices

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer Local lockout prevents the control settings of the instrument being altered by unauthorized use of the front panel. Fig. 7.7 shows the relationship of local lockout to the remote and local states previously shown in Fig. 7.6.

  • Page 146: Control Program Examples

    1260 Impedance Gain-Phaze Analyzer Remote Control: GPIB & RS423 CONTROL PROGRAM EXAMPLES To demonstrate the use of the GPIB port for remote control of the instrument, several examples are given of GPIB Controller programs. Each example is written as a series of abbreviated commands, including some BASIC programming language instructions.

  • Page 147: Example: Outputting Readings To The Gpib

    Remote Control: GPIB & RS423 1260 Impedance Gain-Phaze Analyzer 7.6.2 EXAMPLE: Outputting Readings to the GPIB The use of comma as separator and crlf as terminator is assumed. Instruction Meaning OUTPUT “CV0” Select co-ordinates a,b OUTPUT “OP2,1” Send all readings to the GPIB OUTPUT “SI”...
  • Page 148 Remote Commands Section Page Section Page Introduction Query Commands: Command Syntax Analyzer 8.12 View File 8.12 Command Summary 8.3 Program 8.12 Generator Self Test 8.12 Monitor Firmware 8.12 Analysis Calibration 8.13 Input V1 Statistics 8.13 Input V2 Calibration Commands 8.13 Input I Command Index 8.14...

  • Page 149: Chapter 8: Remote Commands

    Remote Commands 1260 Impedance Gain-Phaze Analyzer INTRODUCTION This chapter lists the instrument remote commands. The commands are the same for RS423 and GPIB-operation. They are presented in menu order to relate to Chapter 5, “Menu Terms”. COMMAND SYNTAX The majority of codes are qualified by a numeric argument. In the following lists: F is a floating point number ±...

  • Page 150: Generator

    1260 Impedance Gain-Phaze Analyzer Remote Commands Parameter Command Argument Setting GENERATOR TYPE voltage current FREQ FR F 10E-6 to 32E6 hertz V. AMPL VA F volts 0 to 3 (f≤10MHz) volts 0 to 1 (f>10MHz) V. BIAS VB F -40.95 to +40.95 volts I.

  • Page 151: Input I

    Remote Commands 1260 Impedance Gain-Phaze Analyzer Parameter Command Argument Setting INPUT V1 RANGE RA I,I auto 30mV 300 mV COUPLING DC I,I INPUT IP I,I single differential OUTER OU I,I grounded floating INPUT V2 RANGE RA I,I auto 30mV 300 mV...

  • Page 152: Display

    1260 Impedance Gain-Phaze Analyzer Remote Commands Parameter Command Argument Setting SWEEP LIMITS FREQ FM F 10E-6 to 32E6 min. freq, hertz FX F 10E-6 to 32E6 max. freq, hertz V. AMPL VM F min. ampl, volts 0 to 3 (f≤10MHz) min.

  • Page 153: Plotter

    Remote Commands 1260 Impedance Gain-Phaze Analyzer Parameter Command Argument Setting DISPLAY (Cont.) Z coordinates CZ I Z,θ L (orC),R L (orC),Q L (orC),D Y coordinates CY I Y,θ L (orC),R L (orC),Q L (orC),D PHASE UW I normal unwrapped ERROR BEEP...

  • Page 154: Plot

    1260 Impedance Gain-Phaze Analyzer Remote Commands Parameter Command Argument Setting PLOT PLOTTER X-AXIS ITEM XI I variable par 1 par 2 LIMITS XL I auto manual MINIMUM XM0, F -999 x 10 to +999 x 10 MAXIMUM -999 x 10...

  • Page 155: Data Output

    Remote Commands 1260 Impedance Gain-Phaze Analyzer Parameter Command Argument Setting DATA OUTPUT RS423 OP I,I fail pass dump dump all GPIB OP I,I fail pass dump dump all plotter FILE OP I,I fail pass HEADING RH I GPIB CONFIGURE PAR ROLL...

  • Page 156: Rs423 Configure

    1260 Impedance Gain-Phaze Analyzer Remote Commands Parameter Command Argument Setting RS423 CONFIGURE MODE RR I controller printer ECHO EC I TERM RT I cr lf cr lf and null cr and null RP I comma terminator XOFF/XON XO I enable...

  • Page 157: Limits

    Remote Commands 1260 Impedance Gain-Phaze Analyzer Parameter Command Argument Setting LIMITS ITEM LI I paramenter 1 parameter 2 LOWER LIMIT LV 0, F -999x10 to +999x10 UPPER LIMIT LV 1, F -999x10 to +999x10 BINSORT A ENABLE BN I continuous...

  • Page 158: Vernier

    1260 Impedance Gain-Phaze Analyzer Remote Commands Parameter Command Argument Setting VERNIER FREQ VR 0 AMPL VR 1 BIAS VR 2 X-MIN VR 3 0 to 32000 Y-MIN VR 4 0 to 32000 X-MAX VR 5 0 to 32000 Y-MAX VR 6...

  • Page 159: Self Test

    Remote Commands 1260 Impedance Gain-Phaze Analyzer Parameter Command Argument Setting SELF TEST TEST TT 0 INIT TT 1 RESET TT 2 TIME TM I, I 0 to 23, 0 to 59 hours, minutes TM0? hours? TM1? minutes? TM2? seconds? EP I 1 to 18 program no.

  • Page 160: Self Test

    WK I 1 to 53 Calibration place PC text “..” * These commands are obeyed only when the instrument is operating in the calibration mode. The use of the calibration commands is described in the 1255/1260 Maintenance Manual. 8-13 12600012_Gmacd/CB...

  • Page 161: Command Index

    Remote Commands 1260 Impedance Gain-Phaze Analyzer COMMAND INDEX Note: In the remote commands listed below CA F ideal calibration value • I = integer, CC I display: circuit • F= floating point number. clear error code edit program: go to previous line...
  • Page 162 1260 Impedance Gain-Phaze Analyzer Remote Commands IX F sweep limits: I amplitude max. QX F sweep limits: I bias, max. IP1,I input V1 single/diff. IP2,I input V2 single/diff. RA1,I input V1 range IS F analyzer integration time RA2,I input V2 range...
  • Page 163 Remote Commands 1260 Impedance Gain-Phaze Analyzer VP I plotter Y-axis overlay pen frequency vernier amplitude vernier bias vernier plotter X-min. vernier plotter Y-min. vernier plotter X-max. vernier plotter Y-max. vernier statistics query: variance VX F sweep limits: V amplitude max.
  • Page 164 Messages and Error Codes Section Page 9.1 Introduction 9.2 Command Summary Group 0: Command Structure Group 1: Learn Program Group 2: Combined Parameters Group 3: Generator Group 4: Learnt Program; History File; Vernier Group 5: Missing Modules Group 6: Illegal input/Output Group 7: System/Calibration Group 8: Measurement Validity Group 9: Store/recall...

  • Page 165: Introduction

    Messages and Error Codes 1260 Impedance Gain-Phaze Analyzer INTRODUCTION Displayed messages tell the user: a) that an operation has been completed, b) that an undesirable situation exists, or c) that the requested operation is not possible. Each message is preceded by number, e.g. “81. INPUT OVERLOAD”. Where necessary, this number is included in the data output to remote devices as an error code.

  • Page 166: Error Code Summary

    1260 Impedance Gain-Phaze Analyzer Messages and Error Codes ERROR CODE SUMMARY 9.2.1 GROUP 0: COMMAND STRUCTURE MESSAGE EXPLANATION 01. UNKNOWN COMMAND Command not included in instrument command set 02. ARG MISMATCH Command contained the wrong type, or wrong number, of arguments.

  • Page 167: Group 2: Combined Parameters

    Messages and Error Codes 1260 Impedance Gain-Phaze Analyzer Or, program “nesting” to more than five levels attempted. For example, the sequence: P1:EP2→ P2:EP3→ P3:EP4→ P4:EP5→ P5:EP6→ P6:EP7 results in error message 14 at the command EP7. (P1:EP2 means “Program 1 commands the execution of Program 2”, and so on.) However, if EP7 were EP1 then the sequence would be...

  • Page 168: Group 3: Generator

    1260 Impedance Gain-Phaze Analyzer Messages and Error Codes 27. GPIB/PLOTTER ERR. If results are to be plotted from the history file, the GPIB data output should be set to [off]. Or, if results are to be plotted as measurements are made, the GPIB data output should be set to [plotter].

  • Page 169: Group 5: Missing Modules

    Messages and Error Codes 1260 Impedance Gain-Phaze Analyzer 46. ILL FILE SIZE Sweep too large. With [on] or [evaluate] selected for null or normalize the following max. file sizes apply: Analyzer Mode Max. File Size null normal null group delay...

  • Page 170: Group 7: System/Calibration

    One copy of calibration data is corrupted. 76. RECALIBRATE Both copies of calibration data are corrupted. Instrument should be recalibrated as described in 1255/1260 Maintenance Manual. 77. ILL RANGE COMB. Autorange is not applicable. Attempt made to calibrate with autorange selected. Or wrong combination of range commanded.

  • Page 171: Group 8: Measurement Validity

    Messages and Error Codes 1260 Impedance Gain-Phaze Analyzer 78. ILL FREQUENCY Illegal frequency. Calibration frequency incorrectly set. 79. ILL CAL. SOURCE Illegal calibration source. 9.2.9 GROUP 8: MEASUREMENT VALIDITY MESSAGE EXPLANATION 81. INPUT OVERLOAD Overload on displayed channel(s). 82. AUTO INT. FAILED Auto-Integration terminated before valid result obtained.
  • Page 172 Measurement Scaling and Limit Checking Section Page 10.1 Scaling Facilities 10.3 10.2 Normalizing Sweep Measurements 10.3 10.3 Scaling a Measurement 10.5 Checking the Constants Store 10.5 10.3.2 Entering a Scaling Constant 10.6 10.3.3 Checking the Function Store 10.8 10.3.3.1 Accessing the Function Status Page 10.8 10.3.3.2 Accessing the Program/Function (Memory) status page 10.9...
  • Page 173 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer 10-2 12600012_Gmacd/CB...

  • Page 174: Scaling Facilities

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking 10.1 SCALING FACILITIES Measurement results may be scaled in two ways: a) sweep measurements may be normalised, and b) individual results may have a scaling function applied to them. These two facilities may be used independently. When they are both used, normalisation occurs before function.
  • Page 175 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer An evaluate sweep then starts 12.500000 kHz -5.036dB -38.15dg automatically and messages are displayed [TIME 00:15:32] 40.FILE CLEARED to show the sweeps progress. First the history file is cleared..then evaluation starts...

  • Page 176: Scaling A Measurement

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking 10.3 SCALING A MEASUREMENT Individual measurements are scaled by entering a user-defined scaling function and then selecting “FUNCTION” as the display source. A scaling function may include user-defined scaling constants. Eighteen scaling functions may be stored, nine in battery-maintained memory and nine in non-volatile memory.

  • Page 177: Entering A Scaling Constant

    Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer 10.3.2 ENTERING A SCALING CONSTANT To enter a scaling constant, the procedure is: Press the SCALE/LIMITS hard key..SCALE/ LIMITS [SCALING] ... to display the SCALING page. NORM NULL CONSTS FUNCTION DEV∆...
  • Page 178 1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking r +2.2500E+00 (+1.75_ NORM NULL CONSTS FUNCTION DEV∆ ... and enter it. ENTER Next, the present value of the θ θ +36.500E+00 coordinate is displayed, again with an invitation to enter a new value.

  • Page 179: Checking The Function Store

    Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer 10.3.3 CHECKING THE FUNCTION STORE Before trying to enter a function check that • a function slot is vacant (FUNCTION status) and • sufficient memory space is available to hold the function (PROGRAM status).

  • Page 180: Accessing The Program/Function (Memory) Status Page

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking NV FUNCTION 10 11 12 13 ...the function stores in use in non- volatile memory... ENTERED ...and then, with each successive NEXT press of the NEXT key... FUNCTION 1 ...the functions stored.

  • Page 181: Clearing A Scaling Function

    Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer 10.3.4 CLEARING A SCALING FUNCTION If none of the functions presently stored in the instrument are wanted then the whole program/function memory may be cleared by initializing the instrument. Remember, however, that this will also erase the history file and other stored data and set the control settings to their default states.

  • Page 182: Entering A Scaling Function

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking 10.3.5 ENTERING A SCALING FUNCTION To enter a scaling function: Press the SCALE/LIMITS hard key..SCALE/ LIMITS [SCALING] ... to select the first page of the scaling menu. NORM NULL CONSTS FUNCTION DEV∆...

  • Page 183: Scaling Function Example

    Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer 10.3.6 SCALING FUNCTION EXAMPLE A practical example shows how scaling functions work. In this particular case the open-loop gain (A) of an amplifier is computed from the closed-loop gain (A’), using the function...
  • Page 184 1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking Enter the [a,b] setting, and key in a real value (a) of “1”... ENTER a not entered (+1_ NORM NULL CONSTS FUNCTION DEV∆ Enter the a value, and key in a ENTER imaginary value (b) of “0”...

  • Page 185: Entering The Function

    Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer ...and an imaginary value of zero. ENTER b not entered (+0_ NORM NULL CONSTS FUNCTION DEV∆ ENTER [SCALING] NORM NULL CONSTS FUNCTION DEV∆ The fixed values “1” and R are now held as constants.
  • Page 186 1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking Key in the first item, which, in the present example, is V2..FUNCTION 1 = V2 This item appears after “FUNCTION 1 = “, and the next selection of items appears.
  • Page 187 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer FUNCTION 1 = V2/V1/ jω FUNCTION 1 = V2/V1/( [ V1 FUNCTION 1 = V2/V1/(C INPUT CONSTANT NUMBER FUNCTION 1 = V2/V1/(C1 ↑ NEXT FUNCTION 1 = V2/V1/(C1 The function keyed in so far is :...
  • Page 188 1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking FUNCTION 1 = V2/V1/(C1- [ V1 FUNCTION 1 = V2/V1/(C1-C INPUT CONSTANT NUMBER FUNCTION 1 = V2/V1/(C1-C2 ↑ FUNCTION 1 = V2/V1/(C1-C2* [ V1 FUNCTION 1 = V2/V1/(C1-C2*V2 ↑ The function keyed in so far is :...
  • Page 189 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer FUNCTION 1 = V2/V1/(C1-C2*V2/ [ V1 FUNCTION 1 = V2/V1/(C1-C2*V2/V1 ↑ NEXT FUNCTION 1 = V2/V1/(C1-C2*V2/V1 FUNCTION 1 = V2/V1/(C1-C2*V2/V1) ↑ Having keyed in the function, press ENTER ENTER..[SCALING] ...and the display returns to the “SCALING”...

  • Page 190: Applying A Scaling Function

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking 10.3.7 APPLYING A SCALING FUNCTION Once a scaling function has been entered (as shown in the previous section) it is applied by selecting “FUNCTION” as the display source. The procedure is: DISPLAY Press the DISPLAY hard key ...
  • Page 191 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer DISPLAY ...and “DISPLAY” is displayed again to show that entry is complete. VARIABLE RESULT PHASE CIRCUIT Press ENTER again... ENTER ...to display the present measurement 200.00000Hz 10.274k -15.95 dg * result in its scaled form. All other...

  • Page 192: The Limits Facility

    1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking 10.4 THE LIMITS FACILITY Measurement results may be checked against a user-defined limits, which define pass and fail zones. Fig 4.1 shows the set-up: Value of result FAIL (HI) UPPER LIMIT...
  • Page 193 Measurement Scaling and Limit Checking 1260 Impedance Gain-Phaze Analyzer ITEM Then press ITEM soft key..to display the present status of ITEM [ off ] the limit check. [off] indicates that ITEM LIMITS a limits check is not applied. Select the item to be limits checked,...
  • Page 194 1260 Impedance Gain-Phaze Analyzer Measurement Scaling and Limit Checking UPPER LIMIT +0.0000 (+_ Key in the upper limit value... ITEM LIMITS LOWER LIMIT +0.0000 (+1.25_ ITEM LIMITS ENTER ...and enter it. [ LIMITS ] “LIMITS” is displayed again to show that entry is complete.
  • Page 195 Learnt Programs Section Page 11.1 Learnt Program Facilities 11.3 1.1 Program Storage 11.3 11.1.2 Program Keyswitch 11.3 11.2 Checking the Program Memory Space 11.4 11.3 Clearing a Learnt Program 11.5 11.4 Creating a Learnt Program 11.6 Entering the Learn Mode 11.6 11.4.2 Learnt Program Example...

  • Page 196: Chapter 11: Learnt Programs

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer 11-2 12600012_Gmacd/CB...

  • Page 197: Learnt Program Facilities

    1260 Impedance Gain-Phaze Analyzer Learnt Programs 11.1 LEARNT PROGRAM FACILITIES The instrument is able to store a series of commands, which may be actioned later as a learnt program. A learnt program is useful where a test sequence is used repeatedly, as, for example, in production testing.

  • Page 198: Checking The Program Memory Space

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer 11.2 CHECKING THE PROGRAM MEMORY SPACE Before trying to create a learnt program check that • a vacant program slot is available and • sufficient memory space is available to hold all the instructions.

  • Page 199: Clearing A Learnt Program

    1260 Impedance Gain-Phaze Analyzer Learnt Programs 11.3 CLEARING A LEARNT PROGRAM If none of the learnt programs presently stored in the instrument are wanted then the whole program memory may be cleared by initializing the instrument. Remember, however, that this will also erase the history file and other stored data and set the control settings to their default states.

  • Page 200: Creating A Learnt Program

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer 11.4 CREATING A LEARNT PROGRAM To create a learnt program, simply set the instrument into the learn program mode and then enter commands in the order in which they are to be executed. Remember that a recall set- up instruction can set any number of control parameters in one go.

  • Page 201: Learnt Program Example

    1260 Impedance Gain-Phaze Analyzer Learnt Programs 11.4.2 LEARNT PROGRAM EXAMPLE In the following example the instrument is programmed to subject the item under test to a series of frequency sweeps of increasing amplitude. The aim is to test the item for linearity.
  • Page 202 Learnt Programs 1260 Impedance Gain-Phaze Analyzer ... to select the view menu. The VIEW FILE titles of the file facilities are shown DISPLAY LIST CLEAR above the soft keys. CLEAR Press the CLEAR soft key to erase any data that may be in the history file.
  • Page 203 1260 Impedance Gain-Phaze Analyzer Learnt Programs [FILE CONFIGURE] ...and “FILE CONFIGURE” is displayed again, to show that the last FORMAT CLEAR STATS entry is complete. GENERATOR Next, press the GENERATOR hard key..[GENERATOR] ...to select the [GENERATOR] menu. TYPE FREQ V.AMPL...
  • Page 204 Learnt Programs 1260 Impedance Gain-Phaze Analyzer V.AMPL (+.2_ TYPE FREQ V.AMPL V.BIAS ENTER V.AMPL (+.5_ TYPE FREQ V.AMPL V.BIAS RECYCLE PROGRAM 1 learn mode QUIT QUIT When the last program instruction has been entered, press QUIT to exit from the learn mode.

  • Page 205: Executing A Learnt Program

    1260 Impedance Gain-Phaze Analyzer Learnt Programs 11.5 EXECUTING A LEARNT PROGRAM A program is started simply by entering the program number from EXECUTE PROGRAM. The procedure is: Press the EXECUTE PROGRAM EXECUTE PROGRAM hard key... EXEC. PROGRAM ( _) ...and the display invites you to select a program.

  • Page 206: Editing A Learnt Program

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer 11.6 EDITING A LEARNT PROGRAM EDIT allows a learnt program to be altered. Instructions may be inserted or deleted. 11.6.1 ENTERING THE EDIT MODE To enter the edit mode the procedure is: Press the LEARN PROG hard key..

  • Page 207: Listing Of Example Program

    1260 Impedance Gain-Phaze Analyzer Learnt Programs 11.6.2 LISTING OF EXAMPLE PROGRAM Command code Comments 00 RS 01 Recall set-up number 1 00 FC File Clear, i.e. clear the history file 00 MC 01 Set history file clear mode to manual. This inhibits the automatic file clear function and allows the history file to store the data from several sweeps.

  • Page 208: Using The Edit Functions

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer 11.7 USING THE EDIT FUNCTIONS The way in which the edit functions are used to modify a program is shown in the following example. In this particular sequence the aim is to change the drive amplitude of the first sweep in the example program.
  • Page 209 1260 Impedance Gain-Phaze Analyzer Learnt Programs V.AMPL (+.15_ ) [ V] (The new value appears within the round brackets.) TYPE FREQ V.AMPL V.BIAS Enter the new amplitude value... ENTER [GENERATOR] ...and “GENERATOR” is displayed to show that entry is complete.

  • Page 210: Copying A Learnt Program

    Learnt Programs 1260 Impedance Gain-Phaze Analyzer REMEMBER THE LEARNT PROGRAM RULES: • A program may call another program as a sub-routine, from anywhere within itself. This sub-routine, in turn, may call a sub-sub-routine, and program “nesting” may be extended in this way up to five levels (counting the initial program as the first level). A sixth level is permitted on one condition, that the routine at this level calls the initial program on completion.
  • Page 211 1260 Impedance Gain-Phaze Analyzer Learnt Programs ENTER Enter the request..and, to show that something is 12.500000 kHz -5.036dB -38.15dg happening, the message, “COPYING” [TIME 00:07:55] COPYING is displayed..followed, when copying is complete, by 12.500000 kHz -5.036dB -38.15dg the message, “19. COPY COMPLETE”.
  • Page 212 INDEX accessories 2.3 edit learn program 5.48 alternative circuit forms (display) 5.17 error beep 5.50 analyzer event status enable 7.9 auto-integration 5.6 execute program, remote command 8.12 current input coupling 5.11 current input range 5.11 file default settings 3.11 clear 5.37 integration time 5.6 configure 5.30 measurement delay 5.6...
  • Page 213 input command terminator and character display 5.15 frame, RS423 7.11 generator 5.3 input, analyzer, remote commands 8.4 learn program 5.48 installinga GPIB plotter (for PLOT) 3.21 plotter 5.18 instrument keyboard 3.4 plotter axes 5.24 scale / limits 5.31 key features (of instrument) 1.3 self test 5.50 status 5.41 learn program...
  • Page 214 plotter axes output data format 7.12 menu summary 4.6 standards 7.11 menu terms 5.24 serial poll 7.7 setting the (example) 3.23 service request enable 7.8 plotter X-axis set-up store status 5.43 item 5.24 setting limits 5.24 the display coordinates 3.22 full scale range (LIMITS) 5.24 the generator (example) 3.12 lin / log scaling 5.25...
  • Page 215 sweep (continued) type (enable) 5.12 setting the 3.16 talk only, GPIB 3.21, 7.5 telescopic slide fitting (Accuride) 2.8 telescopic slide fitting (Jonathan) 2.14 telescopic slide kit (Accuride) 2.7 use of manual 1,4 using a control menu 3.7 using the plot facility 3.21 ventilation 2.7 vernier generator adjustment 5.38...

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