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3-50

BOP HIPWR 031912

3.5.5

BOP VISA INSTRUMENT DRIVER

The VISA instrument driver for the BOP power supply, available for download at www.kepco-
power.com/drivers.htm, simplifies programming with a VISA compatible GPIB controller.
Included are:

• source code (C) for all VISA functions (kp_bophi.c)

• a complete programming reference manual (kp_bophi.doc)

• a sample application of the VISA functions (written in C) which can be used to program

one or more BOP power supplies using a virtual front panel observed on a com-

puter monitor (kp_appl.c)

TABLE 3-19. IEEE 488 (GPIB) BUS COMMAND MODE MESSAGES

MNEMONIC

MESSAGE

DESCRIPTION

COMMENTS

ATN

Attention

Received

DAC

Data accepted

Received or Sent

DAV

Data Valid

Received or Sent

DCL

Device Clear

Received (see PAR. 3.5.3.1.2)

IFC

Interface Clear

Received

MLA

My Listen Address

Received

MTA

My Talk Address

Received

OTA

Other Talk Address

Received

RFD

Ready for Data

Received or Sent

SDC

Selected Device Clear

Received

SPD

Serial Poll Disable

Received

SPE

Serial Poll Enable

Received

SRQ

Service Request

Sent

UNL

Unlisten

Received

UNT

Untalk

Received

TABLE 3-20. IEEE 488 (GPIB) BUS DATA MODE MESSAGES

MNEMONIC

MESSAGE DESCRIPTION

COMMENTS

DAB

Data Byte

Received or Sent

END

End

Received or Sent

EOS

End of String

Received or Sent

RQS

Request Service

Sent

STB

Status Byte

Sent

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Содержание BOP-MG

Страница 1: ...may be included at the end of the manual All applicable changes and revision number changes are documented with reference to the equipment serial num bers Before using this Instruction Manual check y...

Страница 2: ......

Страница 3: ...Importer s Name and Address Type of Equipment Component Power Supply Model No PRODUCT MODEL NUMBER Year of Manufacture I the undersigned declare that the product specified above when used in conjunct...

Страница 4: ...d within a suitably wired equipment rack utilizing a three wire grounded mains con nection See wiring section of this manual for complete electrical wiring instructions EN61010 1 Cl 6 5 4 and Cl 6 10...

Страница 5: ...nection on the product s rear panel To reconfigure the product input for other nominal mains voltages as listed herein the product must be modified by a trained service technician The PROTECTIVE EARTH...

Страница 6: ...ardous do not lick or swallow Wash skin and clothes immediately and thor oughly upon exposure CAUTION If this power supply is used in OEM equipment the OEM equipment manufacturer is responsible for at...

Страница 7: ...on the BOP output terminals may be dangerous Therefore for battery and con stant voltage type active electronic loads it is recommended that two properly rated external switches be installed for safet...

Страница 8: ...tween the BOP and the load is lost then the BOP can be damaged by output current flowing inside the BOP along the program ming signal return path 2 10 CAUTION The safety features incorporated into the...

Страница 9: ...ettings being briefly applied to the load when the waveform is first executed 3 35 CAUTION Pressing RESET will cause voltage transients to appear at the output which may damage a connected load Switch...

Страница 10: ......

Страница 11: ...ons 2 8 2 5 1 Safety Grounding 2 8 2 5 2 Source Power Connections 2 8 2 5 3 D C Output Grounding 2 8 2 5 3 1 Grounding Network Configuration 2 9 2 5 4 Power Supply Load Interface 2 9 2 5 5 Load Connec...

Страница 12: ...etermining How the Unit responds when Output is OFF Load Type 3 20 3 3 7 Changing the Default Power up Settings 3 21 3 3 8 Storing Recalling Power Supply Output Settings 3 23 3 3 8 1 Understanding Abb...

Страница 13: ...Status Reporting Differences in BIT 4886 3 49 3 5 3 5 3 Trigger Operation Differences in BIT 4886 3 49 3 5 4 IEEE 488 GPIB Bus Protocol 3 49 3 5 5 BOP VISA Instrument driver 3 50 3 5 6 RS232 C Operati...

Страница 14: ...ONS A 2 CLS Clear Status Command A 1 A 3 ESE Standard Event Status Enable Command A 1 A 4 ESE Standard Event Status Enable Query A 2 A 5 ESR Event Status Register Query A 2 A 6 IDN Identification Quer...

Страница 15: ...t BOTH Query B 11 B 39 SOURce CURRent LEVel PROTect LIMit NeGative Command B 11 B 40 SOURce CURRent LEVel PROTect LIMit NeGative Query B 11 B 41 SOURce CURRent LEVel PROTect LIMit POSitive Command B 1...

Страница 16: ...OURce VOLTage LEVel PROTect MODE Query B 27 B 100 SOURce VOLTage LEVel PROTect NeGative Command B 27 B 101 SOURce VOLTage LEVel PROTect NeGative Query B 27 B 102 SOURce VOLTage LEVel PROTect POSitive...

Страница 17: ...B 33 B 135 SYSTem KEYBoard Command B 33 B 136 SYSTem KEYBoard Query B 33 B 137 SYSTem PASSword CENable Command B 33 B 138 SYSTem PASSword CDISable Command B 33 B 139 SYSTem PASSword NEW Command B 34...

Страница 18: ...er Standalone Units 3 38 3 14 Remote Shutdown Using Internal Power Multiple Units 3 38 3 15 Remote Standby Standalone or Multiple Units 3 39 3 16 Programming Example to Verify Previous Command has Com...

Страница 19: ...wing How Power up Settings Function 3 22 3 8 Save recall menu 3 23 3 9 Sine Triangle and Ramp Waveform Frequency vs Points 3 28 3 10 Square Waveform Frequency vs Points 3 28 3 11 Waveform Segment Deta...

Страница 20: ...x BOP 1K 031912 FIGURE 1 1 HIGH POWER BOP SERIES POWER SUPPLY...

Страница 21: ...ings mode and the actual output voltage and current Additionally these BOP models can be remotely con trolled by an analog 10V input for the main channel voltage or current and a 1 to 10V input for th...

Страница 22: ...on flicker Conducted EN55011 CISPR11 0 15 to 30 MHz Radiated EN55011 CISPR11 30 to 1000 MHz Leakage current 3 5 mA 230V a c 47 63 Hz Insulation coordination Input Installation Category II For TN or TT...

Страница 23: ...load current time effect drift 0 02 of rating 0 5 through 8 hours temperature effect 0 02 deg C of rating 0 to 50 deg C ripple and noise 2 EOmax p p 0 2 EOmax rms Includes switching noise Current stab...

Страница 24: ...CS Analog I O Port See Table 2 10 Main channel voltage or current 10V to 10V Full range output 20K Ohm input impedance see PAR 3 4 Protection Limit channels Voltage Current 1V to 10V 10 to 100 of Nomi...

Страница 25: ...rigger port disabled Inputs applied to pin 2 have no effect External Trigger Input pin 4 Isolated input for trigger events Pulse width 100 S min Action delay 500 S max Digital control local Panel moun...

Страница 26: ...cted only for a new waveform and consequently applies to all waveform seg ments Changing the type for an existing waveform is not possible unless the wave form is erased first The Limit values positiv...

Страница 27: ...s automatically selected for the best waveform representation Because the BOP unit is not an oscilloscope the waveform representation is sometimes very sketchy especially if there is a large differenc...

Страница 28: ...oltage millivolts a c 35 Sine millivolts d c 1 Triangle Square Ramp Level Current milliamperes a c 35 Sine milliamperes d c 1 Triangle Square Ramp Level Protection Limit Channel Current bipolar Ampere...

Страница 29: ...lt or Independent Main Channel 0 to EONOM or IONOM default Software limit to setting of main channel Voltage Volts for Voltage mode Current Amperes for Current mode Protection Limit Channel maximum va...

Страница 30: ...Figure 3 5 for defaults Multiple unit configurations are protected by Admin2 password Save Display Chg choice is Enable or Dis able when set to Disable prevents changes made to the display settings fr...

Страница 31: ...0 PAR SER CTRL IN port 8 pin mini DIN connector See Figure 2 1 Table 2 7 PAR SER CTRL OUT port 4 pin mini DIN connector See Figure 2 1 Table 2 6 PAR SER PROT IN port 8 pin phone jack See Figure 2 1 Ta...

Страница 32: ...DRAWING SHEET 1 OF 2 20 000 508 00 21 439 544 54 22 800 579 11 21 564 547 73 22 000 558 79 23 863 606 12 18 235 463 16 18 985 482 21 1 470 37 34 1 738 44 15 5 218 132 54 2 215 56 27 OBROUND 0 25x0 45...

Страница 33: ...BOP HIPWR 031912 1 13 FIGURE 1 2 BOP POWER SUPPLY OUTLINE DRAWING SHEET 2 OF 2 SLIDES TRAVEL DISTANCE 23 000 584 2 22 000 558 79 SEE NOTE 6 REAR VIEW REMOVE FEET FOR RACK MOUNTING...

Страница 34: ...written in standard C language which adds the proper SCPI syntax to commands sent to the BOP Programmed settings for main and protection channels are not displayed on the front panel when in remote mo...

Страница 35: ...The external reference may be applied directly or can be attenuated by the digital controls see PAR 3 4 3 2 The BOP will limit its output based on the user configurable limits so that in the event of...

Страница 36: ...1 8 ACCESSORIES Accessories for the BOP Power Supply are listed in Table 1 5 1 9 SAFETY Service must be referred to authorized personnel Using the power supply in a manner not specified by Kepco Inc...

Страница 37: ...BOP HIPWR 031912 1 17 FIGURE 1 3 BOP OUTPUT CHARACTERISTICS...

Страница 38: ...the output voltage of a a single unit KIT 219 0481 is used for 2 parallel connected branches of 3 series connected units The six total power supplies provide double the output current and triple the...

Страница 39: ...npacking inspect for shipping damage before attempting to operate Perform the preliminary operational check as outlined in PAR 2 3 If any indication of damage is found file an immediate claim with the...

Страница 40: ...unit Pin 1 Line or Line 1 without Neutral connection Pin 2 Neutral or Line 2 without Neutral connection Pin 3 Ground Protective conductor terminal 9 Monitor and Sensing terminal block terminal block A...

Страница 41: ...the unit functionality The unit remains powered but no output is available and the red front panel FAULT LED will go ON Response is relatively fast 100 S max To resume normal operation it is necessary...

Страница 42: ...on TABLE 2 7 PARALLEL SERIAL CONTROL IN PORT PIN ASSIGNMENTS CONNECTOR PIN SIGNAL NAME FUNCTION PARALLEL SERIAL CONTROL IN PORT A2A5J3 1 SGND Local signal ground 2 No connection 3 S_IN_PARALLEL Input...

Страница 43: ...llel or series combination are connected in series 3 SD_RETURN Completes return connection for the protection circuit which receives energy from the master unit 4 No connection 5 No connection 6 No co...

Страница 44: ...corresponds to zero to full scale current 4 SGND Signal Ground used for IOUT_DMM pin 3 return 5 I_LIM_EXT Analog input signal referenced to pin 12 0V to 10V sets the negative current limit between ze...

Страница 45: ...the power supply e g enter 36 for a model BOP 36 28MG and press ENTER If STANDBY indicator is lit press STANDBY key 5 Verify DVM voltage reading agrees with programmed voltage within 0 03 of rated ma...

Страница 46: ...he grounding of the metal cover and case of any instrument connected to the a c power source when such grounding is an intrinsic part of the safety aspect of the instrument The ground terminal of the...

Страница 47: ...at the power supply measuring devices which are a c line operated can often introduce additional ripple and noise into the cir cuit There is unfortunately no best method for interconnecting the load a...

Страница 48: ...strip is provided at the rear panel for con nection of the sense wires to the load for remote sensing or multiple unit applications CAUTION NEVER CONNECT THE LOAD TO THE SENSE TERMINALS MONITORING IN...

Страница 49: ...ly interior is recommended If the power supply is located within a confined space take care that the ambient temperature which is the temperature of the air immediately surrounding the power supply do...

Страница 50: ...2 12 BOP HIPWR 031912 FIGURE 2 2 LOAD CONNECTIONS LOCAL SENSING FIGURE 2 3 LOAD CONNECTIONS REMOTE SENSING GND NET OUT MON N C OUT S COM S COM MON GND...

Страница 51: ...five units can be connected in parallel to increase the current IMAX one unit x NP IMAX parallel combination where NP number of units in parallel Similarly up to three units can be connected in series...

Страница 52: ...g connections are required Power cables Sense connections either local or remote All interconnection cables and terminations required for parallel series 2 X 2 or 3 X 2 configurations are supplied in...

Страница 53: ...BOP HIPWR 031912 2 15 FIGURE 2 4 PARALLEL CONFIGURATION LOCAL SENSING TYPICAL...

Страница 54: ...2 16 BOP HIPWR 031912 FIGURE 2 5 PARALLEL CONFIGURATION REMOTE SENSING TYPICAL...

Страница 55: ...HIPWR 031912 2 17 FIGURE 2 6 SERIES CONFIGURATION LOCAL SENSING TYPICAL GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON...

Страница 56: ...BOP HIPWR 031912 FIGURE 2 7 SERIES CONFIGURATION REMOTE SENSING TYPICAL GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON...

Страница 57: ...ducting transistors keep the voltage at pin 8 low and the diodes are cut off If a fault occurs the transistor between PAR SER PROT IN PORT pin 2 and PAR SER PROT OUT PORT pin 2 of the defective unit i...

Страница 58: ...d when units are con nected in parallel increase output current see NOTE below SERIES Unit to be configured for series operation opens UNIT TYPE and CONNECTION TYPE options shown below Used when units...

Страница 59: ...save the settings for subsequent power up cycles The display shows the master power up screen see Figure 2 9 e Turn off power to the master then turn on power to the master f The power up master modu...

Страница 60: ...he values for Current Max Current Min and Cur rent Protect Max Min now reflect the total current of the parallel combination Voltage val ues and limits reflect a series combination For 2 X 2 and 3 X 2...

Страница 61: ...ly displays the Slave Power Up screen Figure 2 11 the Fault indicator is lit and the unit continues to beep once a minute until the master is found For instructions to return the slave to standalone o...

Страница 62: ...ble 2 12 When prompted enter ADMIN2 password see PAR 3 2 4 4 before continuing 5 Press to return to factory defaults This configures the unit as a standalone unit 6 Press to save for power up 7 Turn o...

Страница 63: ...LOCAL SENSING TYPICAL GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON GND GND NET OUT MON N C OUT S COM S COM MON GND G...

Страница 64: ......

Страница 65: ...he use of the VISA driver see PAR 3 5 5 3 2 POWER SUPPLY BASICS The following paragraphs describe basic operation of the front panel controls which are used to configure and operate the power supply T...

Страница 66: ...go on A1 any control function failure A2 overtemperature instant internal overcurrent output overvoltage over current local 15V failure A4 input under overvoltage input overcur rent internal output un...

Страница 67: ...s indicated at the upper right of the LCD Setting the unit to STANDBY when the mode is changed only occurs when using the MODE key R or T From the power up screen these keys scroll the cursor from dig...

Страница 68: ...e the power supply will within the configured and rated limits provide the programmed output current Voltage is determined by the load and cannot exceed the Voltage Protect limits Mode displayed at th...

Страница 69: ...es CURR EXT or VOLT EXT the setting establishes the full scale output corresponding to a 10V analog signal see PAR 3 4 3 2 If the main or protect channel indicates EXTERNAL the corresponding setting i...

Страница 70: ...rt a change without applying the modified setting From the power up screen is used to adjust contrast In the Revisions TEST submenu of the General Setup Menu is used to execute a test SAVE FOR POWER U...

Страница 71: ...proper menu as described above PAR 3 2 4 Tables 3 3 through 3 15 list the menu parameters To modify a parameter listed in a menu or submenu proceed as follows 1 Highlight the parameter using the Y an...

Страница 72: ...Setup menu Highlight Password and press 2 Enter the Admin 2 password see PAR 3 2 4 4 for details then press to verify The Password Protection menu see Figure 3 5 is now displayed 3 To change a passwo...

Страница 73: ...ribed in PAR 3 2 4 This function is always available whether in Local Remote or Local Lockout mode NOTE If is not available when the operator convenience menu is open these functions see PAR 3 2 5 1 t...

Страница 74: ...E g selecting 2 Second Graph means that 2S 240 50ms sampling i e every 50ms a snapshot of the output state is used to produce a single point DISPLAY BACKGROUND White Black WHITE Sets the background t...

Страница 75: ...n waveform is stopped e g by pressing output freezes at whatever level the waveform was at when was pressed then after a brief delay output is set to STANDBY disabled Last Level When waveform is stopp...

Страница 76: ...D ASSOCIATED PROTECT LIMITS From the power up screen the settable voltage current parameters are displayed at the bottom of the LCD above the HELP message see Figure 3 3 Use Y or U to highlight the ma...

Страница 77: ...aximum positive and minimum maximum negative voltage that can be set Value 0 to EOnom Value 0 to EOnom 3 3 4 1 B 88 B 89 B 90 B 92 Current Protect Current Protect Voltage mode only Defines maximum cur...

Страница 78: ...d and can be edited for both protection limits Press from the power up screen to enter the General Setup menu Figure 3 6 then high light Max Min Settings Press to enter the Max Min Settings submenu Fi...

Страница 79: ...ect Min 7V when BIPOLAR is selected the previous protec tion values 25 7 will remain in place until a new value is entered in the Voltage Protection field When a new Voltage Protect setting e g 22V is...

Страница 80: ...XIMUM OR MINIMUM SOFTWARE CONTROLLED LIMITS The maximum or minimum allowable voltage and current settings of the unit can be reduced from the nominal using the Max Min Settings menu Table 3 5 which li...

Страница 81: ...ent Protect To modify refer to 3 3 4 1 C Protect Min internal value Not Adjustable Defines the minimum value that Current Protect can be set to This is a calcu lated value and is not adjustable from t...

Страница 82: ...OP 3 28MG In this case it is important to change the V Protect Max and V Protect Min limits e g to 3 3V respectively so that the load is protected when operating in Current Mode 1 Press from the power...

Страница 83: ...ion limits in effect If the new protection limit setting is below the existing setting for the protection limit the protection channel voltage or current is set to zero 3 3 4 3 EXTERNAL LIMITS These l...

Страница 84: ...limit are set to maximum When the unit is enabled the pre existing settings for voltage current protect and voltage limit are restored For both inductive loads and constant current type active electro...

Страница 85: ...will go to current mode current will be set to zero with voltage protect and current limit set to maxi mum In this way the battery will not be discharged while the output is OFF For constant volt age...

Страница 86: ...sing MODE changes mode to current puts unit in standby output to 0A voltage protection to power up setting of 10V output off and STANDBY indicator on Current Internal Internal Voltage 10 Current 25 Un...

Страница 87: ...he Main heading followed by V voltage or A current followed by either f Output OFF n Output ON If the reference type is ExtRefLvl instead of Internal or External the uppercase V or A is replaced by lo...

Страница 88: ...columns of 10 rows Use T and R keys to display additional columns NOTE Use the number keys as a shortcut e g press ing 4 immediately highlights location 41 showing the column with locations 41 throug...

Страница 89: ...ice from a list or use the keypad to enter a numeric value then press to save or to abort To exit without changing the parameter press 5 Continue to modify parameters as described in step 4 above When...

Страница 90: ...essing to execute the waveform the previously programmed settings of the power supply will be applied to the load until the waveform starts executing 3 3 9 2 WAVEFORM OVERVIEW After observing the prec...

Страница 91: ...nd for square waveforms respectively Levels use a maximum of 60 points This means that a waveform consisting of a single sinewave segment at 0 1 Hz will use all 3840 points to generate each cycle whil...

Страница 92: ...9Hz 30 33 3Hz 44 3Hz 240 355 9Hz 443 7Hz 24 See Note 2 44 4Hz 55 4Hz 192 443 8z 532Hz 20 See Note 3 NOTES 1 As the frequency varies within the range the time interval per point varies proportionately...

Страница 93: ...ffset start stop angle initial repeat for a segment use Y or U or the encoder to highlight the segment then press Initial Repeat is not available for the last seg ment since the last segment must repe...

Страница 94: ...egment then press to edit When editing a segment a submenu showing the parameters for that segment will open see Table 3 11 Use Y or U or the encoder to highlight the parameter then press to edit chan...

Страница 95: ...limit in effect see PAR 3 3 4 1 Values that exceed the maximum or minimum software limits see PAR 3 3 4 2 are neither accepted nor executed Start Angle Sine or Triangle only xxx x degrees The point at...

Страница 96: ...lex waveform 3 3 9 9 USING SEGMENTS TO BUILD A WAVEFORM The following steps provide detailed instructions to illustrate how a complex waveform illus trated in Figure 3 11 may be created by building se...

Страница 97: ...or power up This step creates a repeat ing negative ramp starting at 10V decreasing to 6V since it is a 4V p p signal riding on an 8V offset The frequency of 50 Hz establishes the time duration of 20...

Страница 98: ...nother initial segment which is the first quadrant of a 20V p p sine wave riding on a 0V offset It starts at 0V and rises to 10V 1 2 of 20 over 10 ms 1 4 of 40ms period established by 25Hz frequency T...

Страница 99: ...test requires pressing every key on the keypad plus moving the ADJUST control clockwise and counterclockwise with the ADJUST control depressed and released As the keys and control function pass the te...

Страница 100: ...enu F3 Invalid only works when labeled Key was probably press inadvertently F4 Invalid only works when labeled Key was probably press inadvertently Master Slave Menu Series or Parallel when not STANDA...

Страница 101: ...parallel can be disabled by applying a remote signal to the master PAR SER PROTECTION PORT as shown in Figure 3 12 or 3 14 When the signal is momentarily active minimum 100 S power transfer between in...

Страница 102: ...R MULTIPLE UNITS 3 4 1 2 REMOTE STANDBY A standalone unit or a multiple unit configuration parallel series or series parallel can be set to STANDBY status by applying a remote signal to the TRIGGER PO...

Страница 103: ...restore this setting upon power up 3 4 3 CONTROLLING THE OUTPUT USING THE BOP AS A POWER AMPLIFIER The BOP can function as a power amplifier by means of the External Reference input at the Analog I O...

Страница 104: ...LE 3 15 ANALOG REMOTE SETUP MENU SETTING CHOICES BOLD Factory Default FUNCTION REFERENCE INPUT PIN 11 referenced to pin 4 INTERNAL EXTERNAL EXTL REF LVL INTERNAL Any external reference applied to the...

Страница 105: ...press then highlight Ref erence Input and press Highlight Internal and press to save Then press to apply the changes without saving for power up and exit NOTE Each time the Reference Input setting is...

Страница 106: ...alue to full scale current 10V corresponds to rated max imum current e g for BOP 36 28MG 10V sets positive current limit to 28A V_LIM_EXT pin 14 This 1V to 10V analog signal sets the positive voltage...

Страница 107: ...umentation Software Architecture driver supplied with the unit PAR 3 5 5 RS 232C Operation PAR 3 5 6 fol lowed by a detailed explanation of SCPI programming PAR 3 6 3 5 1 OPERATING FEATURES AVAILABLE...

Страница 108: ...require a query to be added to the command string to verify the previous command is complete When the command is com plete the unit updates the status byte and indicates MAV Message Available bit 4 se...

Страница 109: ...y address char status_byte status byte from the power supply define MAV 0x10 bit 4 of the status byte is the Message AVailable bit by 488 2 specification Function Send_with_wait INPUT string to be sen...

Страница 110: ...nts see PAR 3 6 and Appendix B CIIL Provides compatibility with early Kepco power supplies and con trollers GPIB Address 0 30 06 Assigns address used by external GPIB controller to communicate with BO...

Страница 111: ...ress to enter the Interface menu see Table 3 16 highlight SERIAL XON XOFF and press Highlight the desired option and press to save then press to save for power up or to apply the changes without savin...

Страница 112: ...ectly compatible with the older linear BOP models using a BIT 4882 for digital remote control as there are differences in behavior between the two In response to the command line outp off volt 10 the...

Страница 113: ...supply operat ing as either a Talker or a Listener See PAR 3 5 3 1 to change the GPIB address TABLE 3 18 IEEE 488 GPIB BUS INTERFACE FUNCTIONS FUNCTION SUBSET SYMBOL COMMENTS Source Handshake SH1 Comp...

Страница 114: ...PIB BUS COMMAND MODE MESSAGES MNEMONIC MESSAGE DESCRIPTION COMMENTS ATN Attention Received DAC Data accepted Received or Sent DAV Data Valid Received or Sent DCL Device Clear Received see PAR 3 5 3 1...

Страница 115: ...pecial control characters The six special control characters are Escape 1BH Causes the input buffer to be cleared This character is used to ensure that the buffer is empty when the host powers on sinc...

Страница 116: ...cape ESC 01BH XON 011H XOFF 013H CAN 018H BS deletes the last character entered with the exception of CR or LF characters Either the CR or LF character acts as the line terminator initiating parsing o...

Страница 117: ...ode should only be enabled when errors in operation are detected Each byte character is echoed back to the sender where it is verified as the same character that was just sent If the wrong character i...

Страница 118: ...the above steps is completed successfully the problem lies in the computer hard ware and or software Refer to the Product Support area of the Kepco website for additional information regarding RS 232...

Страница 119: ...DISPLAY SUBSYSTEM This subsystem controls the second line of the LCD The first line will always display the LOCal or REMote operation status and the constant Voltage CV or constant Current functionin...

Страница 120: ...STATe ON or OFF STATe CONT CONT MODE ACTIVE RESISTIVE BATTERY MODE MEMory subsystem MEMory UPDate RELoad ROOT colon SYSTem subsystem SYSTem BEEP COMM GPIB ADDR val GPIB ADDR SER BAUD BAUD ECHO ECHO PA...

Страница 121: ...he array See paragraph 3 3 9 3 for an explanation of how a waveform is generated by the BOP SOURce subsystem SOURce VOLTage LEVel IMMediate AMPLitude val AMPLitude MIN MAX TRIGgered AMPLitude val AMPL...

Страница 122: ...ishes this by partitioning the Flash memory As the amount of Flash memory used becomes larger with each subsequent data update the Flash memory fills up and needs to be compressed The compression of t...

Страница 123: ...nt requirements During voltage calibration the voltage voltage protect and voltage readback are calibrated and during current calibration the current current protect and current readback are calibrate...

Страница 124: ...h component of the message structure NOTE An alternative to using the message structure for multiple messages defined in the fol lowing paragraphs is to send each command as a separate line In this ca...

Страница 125: ...lso act as a root specifier paragraph 3 6 4 7 3 6 4 3 QUERY INDICATOR The question mark following a keyword is a query indicator This changes the command into a query If there is more than one keyword...

Страница 126: ...h message Where a message terminator is shown it is represented as NL regardless of the actual terminator character 3 6 5 UNDERSTANDING THE COMMAND STRUCTURE Understanding the command structure requir...

Страница 127: ...meas command Several commands may be sent as one message a line feed terminates the message Commands sent together are separated by a semicolon The first command in a mes sage starts at the root there...

Страница 128: ...nd the Standard Event and Service Request registers are 8 bits These four registers are referred to as condition registers Each of the four condition registers is associated with two related registers...

Страница 129: ...y bit 3 is set in the Service Request register and bit 4 indicates that a message is available in the output buffer FIGURE 3 21 TYPICAL EXAMPLE OF BOP POWER SUPPLY PROGRAM USING SCPI COMMANDS Sample P...

Страница 130: ...input goes high 6 Transient Armed 1 indicates the transient function is enabled 7 Not Used always zero 8 Constant Voltage 1 indicates the instrument is in constant voltage mode 9 Transient Complete 1...

Страница 131: ...n error has been detected NOTE If External Reference is enabled and a protection error occurs both Voltage Protect Error bit 12 and Current Protect Error bit 13 are set 13 Current Protect Error 1 indi...

Страница 132: ......

Страница 133: ...P are verified If an error occurs during the verification process the unit will beep and an error 24 x Hardware see PAR B 132 will be placed in the error queue TABLE 4 1 CALIBRATION SUMMARY Type Step...

Страница 134: ...S Short with Meas Shunt Automatic CM 1 DVM between probe terminals of Meas Shunt LO towards COM S 2 Adjust for zero pos FS CURRENT GAIN 1 ZERO 2 POSITIVE External 1 0 0V 2 10 0V Analog I O Port pin 11...

Страница 135: ...HM 115 3033 ISOTEK RUG Z R001 0 1 TK10 BOP 50 20MG BOP 72 14MG BOP 100 10MG 0 01 OHM 115 2997 ISOTEK RUG Z R010 0 1 TK10 NOTE Selected sense resistor must be mounted on a heatsink with a minimum surfa...

Страница 136: ...075V 0 008mV 0 075V 0 075V 0 038mV BOP 20 50MG 0 001 Ohm 0V 0 005mV 0 05V 0 05V 0 005mV 0 05V 0 05V 0 025mV BOP 25 40MG 0 001 Ohm 0V 0 004mV 0 04V 0 04V 0 004mV 0 04V 0 04V 0 02mV BOP 36 28MG 0 001 Oh...

Страница 137: ...unit is a master in parallel configurations Steps 31 and 32 calibrate the control signal used when the unit is a slave in parallel configurations There is no need for a special calibration step when...

Страница 138: ...Connect a 0V 0 1mV d c reference to pin 11 EXT_REF referenced to pin 10 SGND of the Analog I O Port connector A2A5J6 Set the BOP to zero volts output by sending CAL VEXT ZERO Connect the DVM to the BO...

Страница 139: ...hen send the CAL ZERO command 17 Connect a 0V 0 1mV d c reference to pin 8 S_IN_SERIAL of the PAR SER CONTROL IN connector A2A5J3 referenced to COM S terminal at the rear panel use mating connector su...

Страница 140: ...ed see PAR 4 3b to adjust the BOP output until the DVM reads as close as possible above the nominal full scale value within tolerance specified in Table 4 4 for FULL SCALE CURRENT 22 Set the BOP to ma...

Страница 141: ...ding CAL CGA ZERO Send CAL DATA commands as needed see PAR 4 3a until the reading is as close to zero as possible within the limits specified in Table 4 4 for CURRENT ZERO 28 Replace the 0V d c refere...

Страница 142: ...ALIBRATION USING FRONT PANEL KEYPAD IN LOCAL MODE The following paragraphs describe the screens and keys used in the calibration process 4 4 1 UNDERSTANDING THE CALIBRATION PROCESS The following steps...

Страница 143: ...ion limits calibration of the power supply or ENTER EXIT Exit Voltage or Current Calibration 4 Pressing or displays following explanations for the function keys CAUTION IF THE CALIBRATE ZERO FUNCTION...

Страница 144: ...the unit for local sensing with GND Network in see Figure 4 1 and discon nect load from BOP output 4 When adjustment is needed refer to PAR 4 4 1 step 5 1 From the power up screen press to enter the...

Страница 145: ...nalog I O port A2A5J6 10 Press VOLTAGE EXTERNAL ZERO to set the BOP to zero volts output Adjust as needed until the DVM reads as close to zero as possible within the limits specified in Table 4 3 for...

Страница 146: ...ove the nominal full scale value within tolerance specified in Table 4 4 for FULL SCALE CURRENT Press twice 20 Press PROTECT POSITIVE to set to adjust the maximum positive current protec tion limit of...

Страница 147: ...ed in Table 4 4 for FULL SCALE CURRENT Press three times 31 Save the calibration levels by first using the keys or the ADJUST control to enter data such as the calibration date e g 12 21 2004 in the A...

Страница 148: ...CAL COPY command TABLE 4 5 CALIBRATION STORAGE COMMAND WORKing PRIor OLDest FACTory MASTer FIRst 1 CAL SAVE Cal 1 values Factory cal Master cal First cal 2 CAL SAVE Cal 2 values Cal 1 values No Chang...

Страница 149: ...tax ESE integer where integer positive whole number 0 to 255 per Table A 2 Default Value 0 Description This command programs the standard Event Status Enable register bits The contents function as a m...

Страница 150: ...mple Figure A 1 A 6 IDN IDENTIFICATION QUERY IDN Syntax IDN Return value Character string Description Identifies the instrument This query requests identification The power supply returns a string whi...

Страница 151: ...e register was read Bit 1 indicates operation complete OPC IDN Power supply returns KEPCO BOP_1000W 36 28 123456 1 43 OPC Allows status bit 0 to be set when pending operations complete OUTP ON VOLT 21...

Страница 152: ...LS are affected by RST The specific commands that are affected and what occurs are explained in PAR 3 5 3 1 3 and Table 3 17 After sending RST it is necessary to send OUTPut ON for programmed values t...

Страница 153: ...ns for requesting service A serial poll also reads the Status Byte Register except that bit 6 RQS not MSS and RQS will be reset Related Commands SRE SRE See example Fig ure A 1 A 16 TRG TRIGGER COMMAN...

Страница 154: ...onse Description Causes the power supply to wait until all previously issued commands and queries are com plete before executing subsequent commands or queries This command can be used to guaran tee s...

Страница 155: ...P MODE B 17 B 18 SOUR LIST SAMP B 69 SOUR CURR B 19 B 20 SOUR LIST SET SAMP B 70 B 71 SOUR CURR LIM BOTH B 21 B 22 SOUR LIST SET TRIG B 72 B 73 SOUR CURR LIM NEG B 23 B 24 SOUR LIST SET WAIT B 74 B 75...

Страница 156: ...armed trigger resets WTG if the trigger system is armed INIT CONT set to OFF and INIT sent sending ABORt disarms the trigger system so subsequent trigger commands have no effect If INIT CONT ON has b...

Страница 157: ...limit 1 5A INIT CONT ON Continuous triggers enabled INIT CONT Power supply returns 1 TRIG SOUR BUS Prepare unit to wait for TRG VOLT TRIG 15 CURR TRIG 3 Power supply output programmed to return to 15...

Страница 158: ...ASure SCALar CURRent DC Return Value num_value digits with decimal point and Exponent Description Measures actual current This query returns the actual value of output current as determined by the pro...

Страница 159: ...s the sample timing The value was determined by dividing the sample time 0 005S by the number of samples 16 0 005 16 0 0003125 LIST CURR APPL LEVEL 095 5 Creates the initial part of the current pulse...

Страница 160: ...urrent to zero Related Commands FUNC MODE OUTP NOTES 1 The power supply is assumed to be operating in constant voltage mode 2 This example creates a 3 Ampere 100mS current pulse and performs a current...

Страница 161: ...F to indicate how Trigger port pin 2 has been configured see PAR B 17 for details B 17 OUTPut MODE COMMAND OUTP MODE Syntax Short Form OUTP MODE ACTIVE RESISTIVE BATTERY Long Form OUTPut MODE ACTIVE R...

Страница 162: ...command functions Refer to PAR 3 5 2 for pro gramming techniques to optimize performance CURR LIM Returns 28 28 positive and negative defaults for max current in current mode CURR LIMIT POS 10 NEG 2 E...

Страница 163: ...quadrant 1 Figure 1 3 or sink quadrant 4 B 27 SOURce CURRent MODE COMMAND CURR MODE Syntax Short Form SOUR CURR MODE FIX LIST TRAN nn EXT GAIN PROT Long Form SOURce CURRent MODE FIXed LIST TRANsient...

Страница 164: ...e maximum current the unit will source or sink B 31 SOURce CURRent LEVel PROTect MODE COMMAND CURR PROT MODE Syntax Short Form SOUR CURR LEV PROT MODE EXT FIX LESS Long Form SOURce CURRent LEVel PROTe...

Страница 165: ...positive and negative protection limits for cur rent Requires MEM UPD PAR B 12 to save for power up See PAR 3 5 2 2 and Figure 3 16 for special programming considerations B 38 SOURce CURRent LEVel PR...

Страница 166: ...Short Form SOUR CURR LEV TRIG AMP Long Form SOURce CURRent LEVel TRIGgered AMPlitude Return Value exp_value digits with decimal point and Exponent e g 2 71E1 for 27 1 Description Returns the current v...

Страница 167: ...been assigned dwell times LIST DWEL Returns 1 38e 4 indicating the unit used 138 S per division automatically selected as the best possible dwell for the waveform FUNC MODE VOLT Initializes the power...

Страница 168: ...e the list transitions from location 20 to location 0 VOLT Returns 20 the last step in the list set the unit to 20V LIST DWELL 01 01 01 01 01 01 01 01 01 Enters dwell time of 0 01 Seconds in locations...

Страница 169: ...exp_value to max of 5900 data points for global dwell time exp_value digits with decimal point and Exponent e g 2 71E1 for 27 1 Description Adds the current value in Amps to list This command sequenti...

Страница 170: ...ments B 58 SOURce LIST CURRent APPLy SWEep QUERY LIST CURR APPL SWE Syntax Short Form LIST CURR APPL SWE Long Form LIST CURRent APPLy SWEep Return Value value1 value2 0 01 to 360 Description Returns s...

Страница 171: ...D LIST REP Syntax Short Form LIST REP int_value1 int_value2 array Long Form LIST REPeat int_value1 int_value2 array where int_value1 is start point to be copied int_value2 is end point to be copied ar...

Страница 172: ...list Description Samples output voltage Value is either programmed current in Amperes or programmed voltage in Volts Average can only be 2 4 8 16 32 64 128 or 256 Entering a number other than those p...

Страница 173: ...error results B 74 SOURce LIST SET WAIT COMMAND LIST SET WAIT Syntax Short Form LIST SET WAIT value Long Form LIST SET WAIT value where value time out for a wait command between 0 00025 and 0 034 Sec...

Страница 174: ...next point in waveform waits for Input Trigger high before proceeding Host computer issues another high pulse Trigger input goes high and List proceeds to next point LIST WAIT LOW 1 1 Maintains outpu...

Страница 175: ...ed to DVM causing DVM to make measurement Trigger input low while DVM makes measurement LIST WAIT HIGH 10 Wait for DVM to complete measurement for 33 mS Proceed to next step if trigger input goes high...

Страница 176: ...value1 value2 value3 Long Form LIST VOLTage APPLy type value1 value2 value3 Where type is SQUARE RAMP RAMP TRIANGLE SINE LEVEL value1 is frequency or period duration for level value2 is p p amplitude...

Страница 177: ...unit must wait until the trigger input goes high before proceeding to the next step In all cases the trigger input must be high or low for at least 0 4 mS to be considered stable This 0 4 mS delay pr...

Страница 178: ...to the Trigger Input pin 3 of the BOP Trigger Port the negative going edge of this pulse will cause the BOP to increment the output to the next level Thus each time the host computer issues a positive...

Страница 179: ...Establishes the software limit value for output voltage i e sets the maximum value of positive or negative output voltage that the unit will be allowed to produce Requires MEM UPD PAR B 12 to save fo...

Страница 180: ...E g VOLT 25 sets the output to 25 volts and VOLT MODE TRAN 0 1 primes the unit for a transient of 0 1 Seconds When VOLT 10 is issued the power supply output goes to 10V for 0 1 Seconds Similarly send...

Страница 181: ...PROTect MODE Returns FIX EXT or LESS Description Identifies how voltage protection limits are controlled FIX for Fixed EXT for external LESS for the lesser of the internal fixed and external protecti...

Страница 182: ...ies the maximum value possible for protection limits for voltage positive negative maximum is 1 greater than rated output voltage B 106 SOURce VOLTage LEVel PROTect LIMit NEGative COMMAND VOLT PROT LI...

Страница 183: ...eration Condition Register see Table B 3 The Operation Condition Register contains unlatched real time information about the operating conditions of the power supply Bit set to 1 function enabled acti...

Страница 184: ...TAT QUES COND Long Form STATus QUEStionable CONDition Return Value int_value actual register value Description Returns the value of the Questionable Condition Register see Table B 4 The Questionable C...

Страница 185: ...256 1024 CC and CV bits set INIT CONT ON Continuous triggers enabled STAT OPER COND Power supply returns 256 to indicate that power supply is in constant voltage mode FUNC MODE CURR Commands power su...

Страница 186: ...turns operating baud rate B 126 SYSTem COMMunication SERial ECHO COMMAND SYST COMM SER ECHO Syntax Short Form SYST COMM SER ECHO ON OFF or 01 00 Long Form SYSTem COMMunication SERial ECHO ON OFF or 01...

Страница 187: ...s stay in the queue but the most recent errors are discarded The last error in the queue will be 350 Queue Over flow Error messages are defined in Table B 5 B 133 SYSTem ERRor CODE QUERY SYST ERR CODE...

Страница 188: ...prior to commands that affect the power supply output e g VOLT 10 OUTP ON to ensure the unit is in remote mode See PAR 3 5 6 3 and Figure B 11 B 142 SYSTem REMote QUERY SYST REM Syntax Short Form SYS...

Страница 189: ...ommand See example Figure B 12 B 146 SYSTem VERSion QUERY SYST VERS Syntax Short Form SYST VERS Long Form SYSTem VERSion Return Value int_value int_value YYYY V Description Identifies SCPI Version imp...

Страница 190: ...AGE FAULT 2yy07 RELAY OPEN 2yy08 POLARITY ERROR 2yy09 OVERLOAD Device Error bit 3 1 Indicates a hardware problem has been detected in either the BOP power supply or an auxiliary power supply such as K...

Страница 191: ...ion with a load 350 Queue Overflow Device Error bit 3 1 Error queue was full error events have been lost 363 Input buffer overrun Device Error bit 3 1 The input from the controlling computer was longe...

Страница 192: ......

Страница 193: ...or to save for power up see PAR 3 2 5 1 If not available see NOTE to PAR 3 2 5 How do I choose between graphical meters or time line graphs Higlight Graphic Display highlight Meters or the appropriat...

Страница 194: ...te XON XOFF or Prompt setting highlight desired selection then When complete to exit or to save for power up see PAR 3 5 3 2 How do I change between SCPI and CIIL Data Format to view To change highlig...

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