Model: 4045B Arbitrary Function Generator USER MANUAL
Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operation, service, and repair of this instrument. Before applying power, follow the installation instructions and become familiar with the operating instructions for this instrument. If this device is damaged or something is missing, contact the place of purchase immediately.
adjustments must be made by qualified maintenance personnel. Disconnect the power cord before removing the instrument covers and replacing components. Under certain conditions, even with the power cable removed, dangerous voltages may exist. To avoid injuries, always disconnect power and discharge circuits before touching them. DO NOT SERVICE OR ADJUST ALONE Do not attempt any internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.
WARNING: To avoid electrical shock hazard, disconnect power cord before removing covers. Refer servicing to qualified personnel. CAUTION: Before connecting the line cord to the AC mains, check the rear panel AC line voltage indicator. Applying a line voltage other than the indicated voltage can destroy the AC line fuses. For continued fire protection, replace fuses only with those of the specified voltage and current ratings.
Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE) , and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Chassis (earth ground) symbol. On (Power). This is the In position of the power switch when instrument is ON. Off (Power). This is the Out position of the power switch when instrument is OFF. On (Supply). This is the AC mains connect/disconnect switch at the back of the instrument. Off (Supply). This is the AC mains connect/disconnect switch at the back of the instrument.
CE Declaration of Conformity The model 4045B meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnetic Compatibility Directive with the following standards. Low Voltage Directive - EMC Directive - EN61010 Safety requirements for electrical equipment for measurement, control, and laboratory use. EN55011 For radiated and conducted emissions.
1 INTRODUCTION .................... 12 1.1 Introduction ........................................... 12 1.2 Description ........................................... 12 1.3 Specifications ....................................... 13 2 INSTALLATION ..................... 18 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3 Introduction ........................................... 18 Package Contents ................................ 18 Instrument Mounting ............................. 19 Power Requirements ........................
3.6.4 SWEEP Key ................................. 34 3.6.5 MODULATION Key ...................... 36 3.7 ON Key .................................................48 3.8 Cursor Keys ..........................................49 3.9 Rotary Input Knob .................................49 3.10 Power-On Settings ..............................49 3.11 Memory...............................................50 3.12 Displaying Errors ................................51 3.13 Quick Start .....................................
4.3.1 The Input Buffer .......................... 68 4.3.2 The Output Queue ....................... 68 4.3.3 Response Messages ................... 68 4.4 Instrument Identification ....................... 69 4.5 Instrument Reset ................................. 69 4.6 Command Syntax ............................... 69 4.6.1 General Command Structure ..... 69 4.7 Status Reporting .................................. 74 4.7.1 The Error Queue .......................... 74 4.7.2 Error Codes .....................
1.1 Introduction 1 Introduction This manual contains information required to operate the B&K Precision model 4045B Arbitrary Function Generator. This section covers the instrument’s general description, specifications, and characteristics. 1.2 Description The 4045B is a versatile high performance function generators with arbitrary capabilities. Implemented using a DDS (direct digital synthesis) architecture, these instruments generate stable and precise sine, square, triangle and arbitrary waveforms.
1.3 Specifications Model 4045B Frequency Characteristics Sine 0.01 Hz – 20 MHz Square 0.01 Hz – 20 MHz Triangle 0.01 Hz – 2 MHz Accuracy 0.001% (10 ppm) at < 500 Hz: 0.001% + 0.006 Hz Resolution 6 digits or 10 mHz Output Characteristics Amplitude Range 10 mVp-p to 10 Vp-p (into 50 Ω) 20 mVp-p to 20 Vp-p (open circuit) Resolution 3 digits (1000 counts) Amplitude Accuracy ± 2 % ± 20 mV of programmed output from 1.01 V – 10 V Flatness ± 0.5 dB to 1 MHz ± 1 dB to 20 MHz Offset Range - 4.99 V to 4.
Square Rise/Fall Time Variable Duty Cycle/Symmetry < 20 ns (10% to 90% at full amplitude into 50 Ω) Square: 20% to 80 %, up to 2 MHz Triangle: 1 % to 99 % in 1% steps, up to 200 kHz ±1% Symmetry Accuracy at 50% Arbitrary Waveform Characteristics Sampling Rate 20 ns to 50 s Vertical Resolution 12 bits Accuracy 0.
– 10 s) Modulation Characteristics Amplitude Modulation Internal 0.1 Hz – 20 kHz sine, square, or triangle waveform External 5 Vp-p for 100% modulation, 10 kΩ input impedance Frequency Modulation Internal 0.
Accuracy Sensitivity General Memory Storage Arbitrary memory Power Requirements Max. Power Consumption Operating Temperature Storage Temperature Humidity Dimensions Weight Safety Standards ± 0.02 % ± 2 digits 25 mVrms typical Store up to 20 instrument settings 1,000 points in flash memory 100 V – 240 V AC ± 10% (90 V – 264 VAC), 47 – 63 Hz < 30 VA 0 °C – 50 °C -10 °C – 70 °C 95% RH, 0 °C – 30 °C 213 mm x 88 mm x 210 mm (WxHxD) Approx. 2.
To ensure the most current version of this manual, please download the latest version here: http://www.bkprecision.com/search/4045B For current up-to-date product information, please visit www.bkprecision.
2 Installation 2.1 Introduction This section contains installation information, power requirements, initial inspection and signal connections for the 4045B signal generator. 2.2 Package Contents Please inspect the instrument mechanically and electrically upon receiving it. Unpack all items from the shipping carton, and check for any obvious signs of physical damage that may have occurred during transportation. Report any damage to the shipping agent immediately.
Verify that all items above are included in the shipping container. If anything is missing, please contact B&K Precision. 2.3 Instrument Mounting The 4045B Arbitrary Function Generator is intended for bench use. The instrument includes a front feet tilt mechanism for optimum panel viewing angle. The instrument does not require special cooling when operated within conventional temperature limits.
2.5 Fuse Replacement There is a 1A, 250V rated slow blow fuse at the AC input. Should the fuse ever get blown, follow the steps below to replace: 1. Locate the fuse box next to the AC input connector in the rear panel. 2. With a small flat blade screwdriver, insert into the fuse box slit to pull and slide out the fuse box as indicated below. 3. Check and replace fuse if necessary. Fuse box Fuse box slit Check/Remove Fuse 2.
WARNING TO AVOID PERSONAL INJURY DUE TO SHOCK, THE THIRD WIRE EARTH GROUND MUST BE CONTINUOUS TO THE POWER OUTLET. BEFORE CONNECTION TO THE POWER OUTLET, EXAMINE ALL CABLES AND CONNECTIONS BETWEEN THE UNIT AND THE FACILITY POWER FOR A CONTINUOUS EARTH GROUND PATH. THE POWER CABLE MUST MEET IEC/UL SAFETY STANDARDS. 2.7 Signal Connections Use RG58U 50Ω or equivalent coaxial cables for all input and output signals to and from the instrument.
3 Operating Instructions 3.1 General Description This section describes the displays, controls and connectors of the function generator. All controls for the instrument local operation are located on the front panel.
1 Power Button 2 LCD Display 3 Function Keys 4 Waveform Buttons 5 Numeric Keypad 6 Units Keys 7 Rotary Knob 8 Cursor Keys 9 Enter Key Power ON/OFF unit Displays all instrument data and settings F1 – F4 function keys to select menu options Select Sine, Ramp/Triangle, Square or Arbitrary waveform shape Enter numeric values for parameters Select unit of frequency, time, or voltage Increment/decrement numerical values or menu selections Move cursor (when visible) left or right Confirm paramete
3.2 Display Window The function generator has a color LCD display that can display up to 400 x 240 dots. When powering on the unit, sine waveform is selected and current settings will appear in the display. The bottom of the display shows a menu (selectable with function keys) that corresponds to the function, parameter, or mode display selected. 3.3 Front Panel Controls The front-panel controls select, display, and change parameter, function, and mode settings.
delivered from the function generator. Output Connector Use this connector to transfer the main output signal from the function generator. Trig In Connector Use this connector to apply an external trigger or gate signal, depending on the waveform generator setting, to the generator. When the built-in frequency counter is enabled, this connector becomes an input for the counter. Sync Out Connector Use this connector to output a positive TTL sync pulse generated at each waveform cycle.
Excessive distortion or aberrations caused by improper termination are less noticeable at lower frequencies, especially with sine and triangle waveforms. To ensure waveform integrity, follow these precautions: 1. Use good quality 50 Ω coaxial cable and connectors. 2. Make all connections tight and as short as possible. 3. Use good quality attenuators if it is necessary to reduce waveform amplitudes applied to sensitive circuits. 4. Use termination or impedance-matching devices to avoid reflections. 5.
3.6 MENU Keys These keys select the main menus for displaying or changing a parameter, function, or mode. 3.6.1 WAVEFORM Keys These keys select the waveform output and display the waveform parameter menu (frequency, amplitude and offset).
F1: Frequency – Selects and displays the frequency. Change the frequency setting using the cursor keys, rotary knob, or numerical keys. F2: Amplitude – Selects and displays the amplitude. Change the amplitude setting using the cursor keys, rotary knob, or numerical keys. F3: Offset – Selects and displays the offset parameter. Change the offset by using the cursor keys, rotary knob, or numerical keys. If a certain setting cannot be produced, the waveform generator will display a “Setting Conflict” message.
Square Menu 3.6.2 MODE Key Selects the output mode: CONT (Continuous), TRIG (Triggered), GATE (Gated), and BRST (Burst).
Mode Menu F1: Continuous – Selects continuous output. F2: Triggered – Triggers one output cycle of the selected waveform for each trigger event. F3: Gated – Triggers output cycles as long as the trigger source asserts the gate signal. F4: Burst – Triggers ‘N’ number of output cycles for each trigger event, where N ranges from 2 to 65,535.
Trigger Menu F1: Manual – Selects manual as the trigger source. To trigger the waveform generator, press this MANUAL trigger button again. F2: Internal – Selects the internal trigger generator as the trigger source. Change the internal trigger rate displayed with the rotary input knob. F3: External – Selects the external trigger signal as the trigger source. The trigger source is supplied through the TRIG IN connector.
Burst Menu 3.6.
F1: Recall – Recalls a previously stored front-panel setup from the selected buffer. Change the buffer number by using the rotary input knob. Valid storage buffer numbers are from 1 to 19 Buffer 0 is the factory default setup. F2: Store – Stores the current front-panel setup to the specified storage buffer. Change the buffer number by using the data keys or the rotary input knob. Valid storage buffer numbers range from 1 to 19. F3: Out-On Def – Selects the OUTPUT state on power-up.
Counter Screen Press F1 - Off to turn off the counter. 3.6.4 SWEEP Key Selects the Sweep Mode and allows entering of sweep parameters: Sweep Start, Sweep Stop, and Sweep Rate.
Sweep Menu F1: Off – Disables the sweep function. F2: Linear – Selects the Linear sweep shape. F3: Logarithmic – Selects the Logarithmic sweep shape. F4: Set – Defines the Sweep Start and Stop frequencies.
Set Sweep Menu 3.6.5 MODULATION Key Selects the AM or FM Modulation mode.
Modulation Menu Press F2 to select AM menu: AM Menu 37
F1: % - Defines the modulation depth (from 0 to 100%) F2: Frequency - Selects the modulation frequency, from 0.1 Hz to 20.00 kHz. F3: Shape - Selects the modulating waveform between Sine, Square, or Triangle. F4: External - Selects and enables the external modulation by an external signal applied to the Modulation In connector in the rear panel.
F1: Deviation - Defines the FM deviation frequency. F2: Frequency - Selects the modulation frequency, from 0.1 Hz to 20.00 kHz. F3: Shape - Selects the shape of the modulating waveform between Sine, Triangle, or Square. F4: External - Selects and enables the external modulation by an external signal applied to the Modulation In connector in the rear panel. 3.6.
F1: Frequency Rate - (Frequency) Selects and displays the frequency. Change the frequency setting using the cursor keys, rotary knob or numerical keys. If a certain wavelength can't produce the waveform at the desired frequency, the waveform generator will display an “Out of Range” error message. Displays the Point Rate (for Arbitrary Waveform only). The Rate parameter governs the rate at which waveform points are executed and thus the frequency of the output.
waveform generator will display a “Setting Conflict” error message. F4: Arb - Selects the Arbitrary waveform editing menu: Arbitrary Editing Menu F1: Start - Selects the arbitrary waveform start address. F2: Length - Selects the arbitrary waveform length. Use the START and LENGTH keys to mark a selection of the waveform memory that will be executed. Changing one of the arbitrary parameters as start and length cause an updating of the output waveform to the new parameters.
waveform, a message to save the Arbitrary wave will be displayed. Select YES or NO to save the new waveform. 3.6.7 Arbitrary EDIT Menu Enters data for creating arbitrary waveforms. You can enter data one point at a time, as a value at an address, draw a line from one point (a value at an address) to another point, create a predefined waveform, or combine these to create complex waveforms. The valid data values range is -2047 to 2047. The valid waveform memory addresses range from 1 to 1,000.
Edit Menu F1: Point - This menu allows point-bypoint waveform editing.
F1: Adrs - Select the current address in the arbitrary waveform memory. F2: Data F2: Line - Selects the data point value at the current address. You can change the point value from -2047 to 2047. - This menu allows a line to be drawn between two selected points.
F1: From - Selects the starting point address. F2: To - Selects the ending point address. F3: Exec - Displays the Confirmation menu, F1:NO and F2:YES Confirmation Menu F3: Predef - (Predefined Waveforms) Selects one of the predefined waveforms: Sine, Triangle, Square and Noise.
Predefine Menu F1: Type - Use the rotary dial to select the waveform Sine, Triangle, Square or Noise. If Noise function is selected, a submenu is displayed to allow adding the noise to an available waveform or to generate it as a new noise waveform. F2: From Data - Selects the starting point of the generated waveform and data value.
waveform (number of points for a full wave). Different waveforms have different limitations on the length, as shown in Table 3-1. Table 3-1: Waveform Length Limits for Predefined Waveforms Wave Sine Triangle Square Noise Minimum Length 16 16 2 16 Divisible by 4 4 2 1 F3: Scale - Selects the scale factor of the waveform. 100% means that the waveform spans the full scale of -2047 to 2047. Scale factors are limited by the point data value of the starting point and automatically calculated by the unit.
function menu options, ADD and NEW are available. Select ADD to add noise to an existing waveform, or NEW to create a new noise waveform. F4:Show - Displays the Arbitrary waveform on the full LCD display. Press any button to return to the MENU selection display. Full Display 3.7 ON Key Use this key to control the main output signal. When the output is active, the ON key will be lit. By default, this will be ON (enabled) from a power-up.
3.8 Cursor Keys Use these keys to move the cursor (when visible) either left or right. They are used in conjunction with the rotary input knob to set the step size of the rotary input knob. 3.9 Rotary Input Knob Use this knob to increase and decrease numeric values. The cursor indicates the low-order position of the displayed value which changes when you rotate the knob (for straight numeric entries only). For other types of data, the whole value changes when you rotate the knob. 3.
assumes power-on default settings. Table 1 lists the factory default settings or selected after RECALL 0. Table 1 – Power-on Default Settings Key Function Function Frequency Amplitude Value Sine 1.0000 kHz 5.00 V Offset Output Sweep Modulation 0.
3.12 Displaying Errors The waveform generator displays error messages when front-panel settings are either invalid or may produce unexpected results. Table 2 – Error Messages Message Text Out of range Setting conflict Empty location Trig rate short Save RAM Must divide by 4 Must divide by 2 Description The set value is out of the instrument’s limits. Settings conflict with another parameter setting or value. Attempt to recall settings from an empty storage location.
3.13 Quick Start This section explains how to generate various waveforms and modify the output waveform. * Generating a waveform output * Modifying waveform output * Storing and recalling a waveform generator setup 3.13.1 Selecting a Standard Waveform You can select several standard waveforms as: sine, triangle, square. Creating a standard waveform requires selecting the waveform type, parameters and their settings that define the waveform.
3.13.3 Using Voltage Offset Through the offset parameter you can add a positive or negative DC level to the output waveform. To set voltage offset: 1. Select a waveform to display its menu. 2. Press F3:Offset to display the offset setting. 3. Use the rotary input knob or the numerical keys to set the voltage offset. To turn the voltage offset OFF, repeat the steps above, but set the offset voltage level to 0. 3.13.
The function generator will overwrite and store settings into a buffer that had settings previously stored inside without a warning. Recalling Setups To recall stored front-panel setup: 1. Press UTILITY to display the menu. 2. Press F1:Recall to select the Recall mode. 3. Use the rotary input knob to select a buffer number. Valid buffers numbers range from 0 to 19. Buffer 0 is a read-only buffer that contains the default power-on setup.
3.13.5 Creating an Arbitrary Waveform You can create an arbitrary waveform using the following methods: * Enter individual data points * Draw lines between data points * Create a predefined waveform * Combine any of these methods NOTE You can use the free downloadable software to create arbitrary waveforms. For more information, please visit www.bkprecision.com. You can program any number of waveforms into waveform memory, keeping in mind the addresses where one waveform ends and the other begins.
memory, follow these steps: 1. Press ARB main key to display the selection menu. 2. Press F4 :ARB to display the arbitrary menu. 3. Press F3:EDIT to display the Edit menu. 4. Press F1:POINT, to select the point by point programming mode. 5. Press F1:ADDRESS 6. Use the rotary knob or the numerical keys to enter the address. 7. Press F2:DATA. 8. Use the rotary knob r the numerical keys to enter the value for the data point. Valid entries range from –2047 to 2047. 9.
execution point rate is the execution time between each point in the waveform.
3.13.8 Setting the Amplitude The following equation represents the relative output amplitude voltage relationship between the front-panel amplitude peak-to-peak setting and the data point values in waveform memory: 𝑜𝑢𝑡𝑝𝑢𝑡 𝑣𝑜𝑙𝑡𝑎𝑔𝑒 𝐴𝑚𝑝𝑙𝑖𝑡𝑢𝑑𝑒 𝑝 − 𝑝 𝑠𝑒𝑡𝑡𝑖𝑛𝑔 𝑥 𝑑𝑎𝑡𝑎 𝑝𝑜𝑖𝑛𝑡 𝑣𝑎𝑙𝑢𝑒 = 4095 + 𝑜𝑓𝑓𝑠𝑒𝑡 Where 4095 is the data point value range in waveform memory. Table 3-4: Relative Amplitude for Waveform Output (Examples) Front Panel Amplitude Setting 5V p-p 5V p-p 10V p-p 3.13.
2. Press the ARB key and select the F4:ARB function. 3. Press F1:START to set the address. Valid entries range from 1 to 999. 4. Press F2:LENGTH to display the length of the waveform. 6. Use the rotary input knob or the numerical keys to enter the waveform length. Valid entries range from 2 to 1000.
4 Programming 4.1 Overview This section provides detailed information on programming the generator via the USB (virtual COM) interface. 4.1.1 Connecting to USB (Virtual COM) Interface Currently, the USB (virtual COM) interface supports Windows® XP/7 operating systems. To connect to a PC for remote communication, please follow the steps below: For Windows 7: 1. The USB driver is included in the CD that comes with the instrument. You can also go to www.bkprecision.
4. Click the “Close” button to stop the automatic search of the driver from Windows Update. 5. Now, go to Device Manager on the computer (Open up the “start” button, and right-click “Computer” and select “Properties”. Click “Device Manager” link on the top left of the side menu) 6. There will be an item listed under “Other devices” labeled “AT91USBSerial”.
7. In the following window, select “Browse my computer for driver software”, and following this, select “Let me pick from a list of device drivers on my computer”. 8. Now there will be a window listing Common hardware types. Click the “Next” button and select on the following screen “Have Disk…” 9. From the “Install From Disk” window, click “Browse…” and locate and double-click the USB driver file downloaded from the website labeled “atm6124_cdc.inf”.
10. Now click “OK”. It will show in the window under Model “AT91 USB to Serial Converter”. Click “Next” and you will get the following note: 11. Go ahead and click “Yes”. When you get the following prompt, select “Install this driver software anyway”. 12. The driver will now install. Once finished, under “Device Manager”, you should see under “Ports (COM & LPT)” an item labeled “BK Precision USB to Serial Converter (COM#)”.
For Windows XP: 1. The USB driver is included in the CD that comes with the instrument. You can also go to www.bkprecision.com and browse this product’s page to find and download the USB driver. 2. Connect the included USB Type A to Type B cable to the generator and the computer, then power on the instrument. 3. The following screen will appear. 4. Select “No, not this time” and click “Next”. 5. In the following screen, select “Install from a list or specific location (Advanced)” and click “Next”. 6.
downloaded from the website labeled “atm6124_cdc.inf”. Select it and click “OK”. 9. The following screen will appear. 10.
11. Click on “Continue Anyway” and the driver will now install. 12. The driver will now install. Once finished, under “Device Manager” (This can be opened by: Right-click “My Computer”->Select “Properties”->Select “Hardware” tab>Click “Device Manager”), you should see under “Ports (COM & LPT)” an item labeled “BK Precision USB to Serial Converter (COM#)”. The “COM#” is the com port that can be used to access the virtual COM port for remote communication. 4.1.
BAUDRATE: 115200 PARITY: NONE DATA BITS: 8 STOP BIT: 1 FLOW CONTROL: NONE 4.2 Device States The device may be in one of the two possible states described below. 4.2.1 Local State (LOCS) In the LOCS state, the device may be operated from the front panel. 4.2.2 Remote State (REMS) In the REMS state, the device may be operated from the USB interface. Actuating any front panel key will cause the device state to revert to the LOCS. 4.
4.3.1 The Input Buffer The device has a 128-byte long cyclic input buffer. Decoding of remote messages is begun as soon as the input buffer is not empty, that is, as soon as the controller has sent at least one byte to the device. Should the input buffer be filled up by the controller faster than the device can remove the bytes and decode them, the bus handshake (CTS/RTS) is used to pause data transfer until room has been made for more bytes in the buffer.
4.4 Instrument Identification The *IDN? common query is used to read the instrument's identification string. The string returned is as follows: BK, MODEL 4045B,0,V0.1 The “V0.1” reflects the firmware version number and will change accordingly. 4.5 Instrument Reset The *RST common command effects an instrument reset to the factory default power up state. 4.6 Command Syntax 4.6.
The Program Message Unit can be divided into three sections as follows: a) Program Header The Program Header represents the operation to be performed, and consists of ASCII character mnemonics. Two types of Program Headers are used in the MODEL 4045B: Instrument-control headers and Common Command and Query headers. Common Command and Query Program Headers consist of a single mnemonic prefixed by an asterisk ('*'). The mnemonics consist of upper - or lower-case alpha characters.
The Program Header Separator is used to separate the program header from the program data. It consists of one or more white space characters, denoted as . Typically, it is a space. c) Program Data The Program Data represent the values of the parameters being set, for example, the '1KHZ' in the above examples. Different forms of program data are accepted, depending on the command.
iii) NRf This is a decimal numeric data type, where NR1 indicates an integer number, NR2 indicates a fixed point real number, and NR3 indicates a floating point real number. iv) Numeric value program data This data type defines numeric values, as well as special cases of Character Data. Numeric values may be specified in any of Integer, Fixed Point or Floating Point format. All parameters which have associated units accept a suffix, which may be specified using upper or lower-case characters.
For example, to set the frequency to its maximum value we can send the command FREQ MAX Some Program Message Units either require, or can accept, more than one data element. Program data elements are separated from each other by the Program Data Separator. It is defined as optional white space characters followed by a comma (','), which in turn is followed by optional white space characters. There are two types of Program Message Units: Command Message Units and Query Message Units.
will return the maximum value to which the frequency may currently be set. Not all Program Message units have query forms (for example, SAV), and some Program Message Units might have only the query form (for example IDN?). The instrument puts the response to the query into the output queue, from where it may be read by the controller. NOTE: All commands should be terminated with a carriage return or line feed character.
The first error in the queue is returned, and the queue is advanced. 4.7.2 Error Codes The negative error codes are defined by SCPI. Positive codes are specific to the instrument. The error message is returned in the form ,"" A table of error numbers and their descriptions is presented here. No error reported 0 - No error Command Errors A command error is in the range -199 to -100, and indicates that a syntax error was detected.
-109 -110 -111 -112 -113 -120 -121 -123 -124 -128 -131 -134 -138 -140 -141 -144 -148 -158 -161 -168 More parameters than allowed were received Missing parameter Fewer parameters than necessary were received Command header error Header separator error Program mnemonic too long The mnemonic must contain no more than 12 characters.
-178 Expression data not allowed Execution Errors An execution error indicates that the device could not execute a syntactically correct command, either since the data were out of the instrument's range, or due to a device condition. -200 -211 -220 -221 -222 -223 -224 Execution error An attempt was made to RECALL the contents of an uninitialized stored setting buffer. Trigger ignored. The *TRG common command was ignored due to the device not being in the correct state to execute the trigger.
The parameter value must be selected from a finite list of possibilities. Device-Specific Errors An error specific to the device occurred. -315 -330 -350 Configuration memory lost. Device memory has been lost. Self-test failed. Queue overflow. Error codes have been lost due to more than 10 errors being reported without being read. Query Errors A query error indicates that the output queue control has detected a problem.
-410 -420 Query INTERRUPTED. Data were sent before the entire response of a previous query was read. Query UNTERMINATED. An attempt was made to read a response before the complete program message meant to generate that response was sent. Warnings The execution of some commands might cause an undesirable instrument state. The commands are executed, but a warning is issued.
4.8 COMMON COMMANDS 4.8.1 System Data Commands *IDN? - Identification query The identification query enables unique identification of the device over the GPIB. This query should always be the last in a program message. It returns a string with four fields: Manufacturer name Model name Serial number (0 if not relevant) Version number Command Type: Common Query Syntax: *IDN? Response: BK, MODEL 4045B,0,V1.1 4.8.2 Internal Operation Commands *RST - Reset command The Reset command performs a device reset.
4.8.3 Device Trigger Commands a) *TRG - Trigger command This command is analogous to the IEEE 488.1 Group Execute Trigger interface message, and has the same effect. It is used to trigger the device to output a wave, and is accepted only when the trigger mode is set to Trigger, Gate or Burst, and the trigger source is set to BUS. Type: Syntax: Common Command *TRG 4.8.
*SAV - Save instrument state This command is used to store the current instrument state in the specified memory location. Arguments Type: Range: Type: Syntax: Example: 0 to 9. Non integer values are rounded before execution Common Command *SAV *SAV 2 Stored setting location 0 stores the factory defaults, and is a read-only location. 4.9 INSTRUMENT CONTROL COMMANDS Instrument control commands are grouped into logical subsystems according to the SCPI instrument model.
specifications. The '' is used to denote a white space character. Note: When controlling the instrument remotely, do not interrupt the instrument with front panel interactions. Although the instrument will be automatically changed back to LOCS (local) mode, subsequent remote commands may cause errors during communication, in which will require a need of restarting the instrument before continuing again with remote operations. 4.9.
SWRAte SWSTArt SWSTOp MODE TRIG TRAte BURSt CONT/ TRIG / GATE / BRST INT / EXT FREQuency The frequency command controls the frequency of the output waveform. Arguments Type: Numeric. Units: MHz, KHz, Hz (default) Range: For SIN and SQU – 0.1 Hz to Max. frequency (see specifications), For TRI – 0.1 Hz to 1 MHz, For ARB - Dependent on the Point Rate and Wavelength.
Query Syntax: Examples: Response: FREQ 5E3 FREQ MAXIMUM FREQ MIN FREQuency?[MAXimum|MINimum] FREQ? FREQ? MAX NR3 Considerations: 1) The MIN and MAX arguments refer to currently settable minimum or maximum. 2) FIXed is alias for CW. Point Rate RATE This command is used to set the point rate. It is coupled with the frequency of the waveform by the relation: Frequency = 1/(Point Rate * Wavelength) Thus changing the point rate will result in a change in frequency.
Rounding: to 4 digits Command Type: Setting or Query Setting Syntax: RATE[units] RATEMINimum|MAXimum Examples: RATE 100NS Query Syntax: RATe?[MINimum|MAXimum] Response: NR3 Note: You can alternately use the :ARB:PRATe command. AMPLitude The amplitude command is used to set the peak-to-peak amplitude of the output waveform.
Query Syntax: Examples: Response: Considerations: AMPL 2.5V AMPL MAX AMPLitude? MINimum|MAXimum] AMPL? AMPL? MAX NR2 1) The MAXimum amplitude is dependent on the offset. 2) The MAX and MIN arguments should not be used in a program message containing an OFFSet command, since these values are evaluated during parsing, based on the current value of the offset. OFFSet The offset command is used to set the DC offset of the output waveform.
Examples: Query Syntax: Examples: Response: Considerations: OFFSetMINimum|MAXimum OFFS 2.5 OFFS 2.5V OFFS MAX OFFSet?[MINimum|MAXimum] OFFS? OFFS? MAX NR2 1) The MAXimum offset is dependent on the amplitude. 2) The MAX and MIN arguments should not be used in a program message containing an AMPLitude command, since these values are evaluated during parsing, based on the current value of the amplitude.
DCYCle This command is used to set the duty-cycle of the square wave or the symmetry of triangular wave. The value is given in percent . Arguments Type: Units: Range: Rounding: Command Type: Syntax: Query Syntax: Response: Numeric None (percent implied) 1 to 99 To integer Setting or Query DCYCle DCYCle MINimum|MAXimum DCYCle?[MINimum|MAXimum] NR3 OUT This command controls whether the output is ON or OFF.
MODULation This command activates or deactivates modulation: Command Type: Setting or Query Setting Syntax: MODULation OFF|AM|FM|INT|EXT Examples: MODULation FM MODULation OFF MODULation EXT Query Syntax: MODULation? Response: OFF | AM INT | AM EXT | FM INT | FM EXT DEPTh This command sets the AM modulation depth in % Arguments Type: Numeric Units: none (implied %) Range: 0 to 100 Rounding: To integer Command Type: Setting or Query Setting Syntax: DEPTh DEPThMINimum|MAXimum 90
Examples: Query Syntax: Response: DEPTh 50 DEPTh?[MINimum|MAXimum] NR3 MODFRequency This command sets the AM and FM modulating waveform frequency Arguments Type: Units: Range: Numeric. MHz, KHz, Hz (default) Fmax = 20 KHz Fmin = 0.
MODSHape This command selects the modulating waveform shape Arguments Type: Character Options: SINusoid, TRIangle, SQUare Command Type: Setting or Query Setting Syntax: MODSHape Examples: MODSHape SIN MODSHape TRI Query Syntax: MODSHape? Response: SIN|TRI|SQU DEViation This command sets the FM modulation deviation Arguments Type: Units: Range: Numeric. MHz, KHz, Hz (default) Fmax = carrier frequency Fmin = 0.
Query Syntax: Examples: Response: DEV 5E3 DEV MAXIMUM DEV MIN DEViation?[MAXimum|MINimum] DEV? DEV? MAX NR3 SWEep This command activates or deactivates sweep: Arguments Type: Boolean Command Type: Setting or Query Setting Syntax: SWEON|OFF|LIN|LOG Examples: SWE ON SWE LIN Query Syntax: SWE? Response: OFF|LIN ON|LIN OFF|LOG ON|LOG OFF Note: Sweep will automatically be active if set to Linear or Logarithmic.
SWRAte This command sets the time for one complete sweep: Arguments Type: Numeric Units: S, mS, uS, nS Range: 10mS to 100S Command Type: Setting or Query Setting Syntax: SWRAte
Query Syntax: Examples: Response: SWSTArt 5E3 SWSTArt MAXIMUM SWSTArt MIN SWSTArt?[MAXimum|MINimum] SWSTArt ? SWSTArt ? MAX NR3 SWSTOp This command sets the stop frequency of the sweep: Arguments Type: Numeric. Units: MHz, KHz, Hz (default) Range: Dependent on the frequency range of the current function.
MODE This command is used to set the trigger mode. Arguments Type: Options: Character CONTinuous TRIGger GATE BURSt Command Type: Setting or Query Setting Syntax: MODE Examples: MODE CONT MODE BURS Query Syntax: MODE? Response: CONT|TRIG|GATE|BURS TRIGger This command is used to select the trigger source, for use in the Trigger, Gate and Burst trigger modes.
Setting Syntax: Examples: Query Syntax: Response: TRIGger TRIG EXT TRIG INT TRIGger? INT|EXT BURSt This command is used to set the number of cycles to be output in the BURST mode. It is not a standard SCPI command.
TRAte Sets the rate of the internal trigger. Arguments Type: Numeric Units: S, mS, uS, nS Range: 1 uS to 10S Rounding: to 4 digits Command Type: Setting or Query Setting Syntax: TRAte[units] TRAteMINimum|MAXimum Examples: TRAte 10E-6 TRAte MIN Query Syntax: TRAte?[MINimum|MAXimum] Response: NR3 Examples: TRAte? TRAte? MIN ERRor? This query returns the first entry in the error queue, and removes that entry from the queue.
Query Syntax: Response: ERRor? , "" 4.9.2 Arbitrary Subsystem The Arbitrary subsystem is not part of the SCPI standard. It was developed to suit the needs of the instrument.
:STARt :LENGth :SAVe Point Rate ARBitrary:PRATe This command is used to set the point rate. It is coupled with the frequency of the waveform by the relation: Frequency = 1/(Point Rate * Wavelength) Thus changing the point rate will result in a change in frequency.
Address :ARBitrary:ADDRess
This command sets the current address of the waveform. It is used to determine to where arbitrary data are to be written.Type: Numeric. Definite form arbitrary block. Indefinite form arbitrary block Numeric Range: -2047 to 2047 ASCII Rounding: to integer value Command Type: Setting or Query Setting Syntax Numeric: :ARBitrary:DATA{[,,ASCii Response: Data are returned in the decimal numeric form.
Considerations: 1) The value of the data at the start and end points must first be set by the user, using the :ARB:DATA command. 2) The range of the straight line cannot overlap with protected memory. 3) The end address must be greater than the start address. Predefined waveforms :ARB:PRED ,,, This command is used to load the waveform memory with a specific type of waveform.
Range SIN: 16 to 1000; divisible by 4 SQU: 2 to 1000; divisible by 2 TRI: 16 to 1000; divisible by 4 NOIS: 16 to 1000, ANO: 16 to 1000, Rounding: to integer value. Scale Type: Numeric. MIN sets the scale to 1; MAX sets the scale to 100 Range: 1 to 100 (See considerations) Rounding; to integer value.
TRI NOIS 0 0 Start Address :ARBitrary:STARt This command sets the start address of the waveform to be run.
This command sets the length of the waveform being run. Arguments Type: Range: Rounding: Command Type: Setting Syntax: Numeric 2 to 1000 to integer value Setting or Query :ARBitrary:LENGth :ARBitrary:LENGthMINimum|MAXimum Example: :ARB:LENG 1E3 Query Syntax: :ARBitrary:LENGth?[MINimum|MAXimum] Example: :ARB:LENG? Response: NR1 Considerations: 1) Changing the wavelength will change either the frequency. 2) The minimum wavelength is 2.
SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #.
LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
Index Amplitude, 13, 28, 50 cursor, 49 duty cycle, 28 Errors, 51 factory default, 50 frequency, 28 Impedance Matching, 26 LCD, 24 Linear, 35 Offset, 28 recall, 54 safety, 3 Specifications, 13 store, 53 Symmetry, 28 Sync Out, 25 109
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