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12.50 Read the max measured current in list mode. (A4H)

Byte Description

AAh

Address (0-31, 0XFF)

Command A4H

4-7 max measured current (Low byte to High byte order) value resets after query
8-25 System reserve
26

Checksum

12.51 Read the min measured current in list mode. (A5H)

Byte Description

AAh

Address (0-31, 0XFF)

Command A5H

4-7 min measured current (Low byte to High byte order) value resets after query
8-25 System reserve
26

Checksum

12.52 Read on-load capacitance. (A6H)

Byte Description

AAh

Address (0-31, 0XFF)

Command A6H

4-7 On-load capacitace (Low byte to High byte order) value resets after query
8-25 System reserve
26

Checksum

12.53 Set/Read current rising slope. (B0H/B1H)

Byte Description

AAh

Address (0-31, 0XFF)

Command B0/B1H

4-7 Current rising slope (Low byte to High byte order)
8-25 System reserve
26

Checksum

Summary of Contents for 8500B Series

Page 1: ...Programming Manual 8500B Series Programmable DC Electronic Loads 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com...

Page 2: ...EVENt 13 3 5 STATus OPERation CONDition 13 3 6 STATus OPERation ENABle NRf 13 4 Measure Commands 14 4 1 MEASure SCALar VOLTage DC 14 4 2 MEASure SCALar VOLTage MAXimum 14 4 3 MEASure SCALar VOLTage MI...

Page 3: ...OTection LEVel NRf 27 7 14 SOURce CURRent LEVel IMMediate AMPLitude NRf 28 7 15 SOURce POWer PROTection LEVel NRf 28 7 16 SOURce POWer LEVel IMMediate AMPLitude NRf 28 7 17 SOURce RESistance LEVel IMM...

Page 4: ...2 14 Set Read CR transient resistance and timer paramete 38H 39H 47 12 15 Set Read the list operation mode CC 3AH 3BH 48 12 16 Set Read the list repeat mode 3CH 3DH 48 12 17 Set Read list step counts...

Page 5: ...5 Set Read the voltage upper limit in CC mode B4H B5H 58 12 56 Set Read the voltage lower limit in CC mode B6H B7H 58 12 57 Set Read the current upper limit in CV mode B8H B9H 58 12 58 Set Read the cu...

Page 6: ...atus Enable register bits The programming determines which events of the Standard Event Status Event register see ESR are allowed to set the ESB Event Summary Bit of the Status Byte register A 1 in th...

Page 7: ...ore OPC have been executed This includes overlapped commands Most commands are sequential and are completed before the next command is executed Overlapped commands are executed in parallel with other...

Page 8: ...T SAV 1 8 RST This command reset the electronic load to the factory defined states Command Syntax RST Parameters None 1 9 SAV This command stores the present state of the electronic load to a specifie...

Page 9: ...not clear it The input summary bits are cleared when the appropriate event registers are read see chapter Programming the Status Registers for more information A serial poll also returns the value of...

Page 10: ...is bit and VF bit0 are set and the loads are turned off Both bits remain set until the condition is removed and PROT CLE is programmed 2 2 Standard Event Status Register Group The standard event regis...

Page 11: ...ated a new calibration constant Bit5 WTG The electronic load is waiting for a trigger 2 4 Status Byte Register Group The status byte register group consists of two 8 bit registers event register and e...

Page 12: ...Query Syntax STATus QUEStionable EVENt Parameters None Example STAT QUES EVEN Query Response NR1 Related Commands CLS 3 2 STATus QUEStionable CONDition This command can read the parameter from quest c...

Page 13: ...d operational status of the electronic load Query Syntax STATus OPERation CONDition Parameters None Example STAT OPER COND Query Response NR1 Related Commands STAT QUES COND 3 6 STATus OPERation ENABl...

Page 14: ...1 MEASure SCALar VOLTage DC This command is used to query the average voltage of the electronic load Command Syntax MEASure SCALar VOLTage DC Parameters None Example MEAS VOLT Query Response NR2 4 2...

Page 15: ...re SCALar CURRent MAXimum MEAS CURR MAX NR2 4 7 MEASure SCALar CURRent MINimum This command is used to query the minimum current of the electronic load Command Syntax MEASure SCALar CURRent MINimum Pa...

Page 16: ...16 4 10 MEAS SCALar RESistance DC This command is used to query the equivalent impedance Command Syntax MEAS SCALar RESistance DC Parameters None Example MEAS RESistance Query Response NR2...

Page 17: ...s connection of n LEDs then Vo should be set to n times of the single section parameter or it can be set to any value within the LED power supply output voltage range Rd Coeff is the ratio of the seri...

Page 18: ...Te bool Parameters 0 1 OFF ON Example OCP ON Query Syntax OCP STATe Query Response 0 1 5 6 OCP ISTart NRf This command is used to set the start current of the OCP test Command Syntax OCP ISTart NRf Pa...

Page 19: ...single step dwell time of OCP test Command Syntax OCP DWELl NRf Parameters 0 00001 0 99999 Unit S Example OCP DWEL 0 01 or OCP DWEL 10ms Query Syntax OCP DWELl Query Response NR2 5 10 OCP VTRig NRf T...

Page 20: ...This command is used to query the PMAX value Command Syntax OCP RESult PMAX Query Response NR2 NR2 NR2 Unit W V A Example OCP RES PMAX Query Response 55 34 11 8 4 69 This example shows that the maxim...

Page 21: ...t the peak test status Command Syntax PEAK STATe bool Example Peak ON 6 2 PEAK CLEar This command is used to clear the peak record Command Syntax PEAK CLEar Example Peak CLE 6 3 PEAK VOLTage MAXimum T...

Page 22: ...x PEAK CURRent MAXimum Example PEAK CURR MAX Query Response NR2 6 6 PEAK CURRent MINimum This command is used to query the minimum current Command Syntax PEAK CURRent MINimum Example PEAK CURR MIN Que...

Page 23: ...istance LEVel IMMediate AMPLitude NRf 29 7 18 SOURce RESistance LEVel IMMediate AMPLitude 29 7 19 SOURce DYNamic HIGH LEVel NRf 29 7 20 SOURce DYNamic HIGH DWELl NRf 30 7 21 SOURce DYNamic LOW LEVel N...

Page 24: ...Wer Constant Power Mode RESistance Constant Resistance Mode DYNamic Dynamic Operation Mode LED LED Mode IMPedance Constant Impedance Mode RST Value CURRent Example MODE RES Query Syntax SOURce FUNCtio...

Page 25: ...T RANG AUTO 1 Query Syntax SOURce VOLTage RANGe AUTO STATe Query Response NR1 7 6 SOURce VOLTage LEVel ON NRf This command sets the voltage of sink current on Command Syntax SOURce VOLTage LEVel ON NR...

Page 26: ...e the load automatically selects the range that corresponds to the value that you program If the value falls in a region where ranges overlap the load selects the range with the highest resolution Com...

Page 27: ...for negative going transitions Command Syntax SOURce CURRent SLEW FALL NRf Parameters MIN MAX MAXimum MINimum Unit A uS RST Value MAXimum Example CURR SLEW FALL 3 Query Syntax SOURce CURRent SLEW FALL...

Page 28: ...the power protection level If the input power exceeds the power protection level for the time specified by POW PROT DEL the input is turned off NOTE Use POW PROT DEL to prevent momentary power limit c...

Page 29: ...lue MAXimum Example RES 5 Query Syntax SOURce RESistance LEVel IMMediate AMPLitude Query Response NR2 7 18 SOURce RESistance LEVel IMMediate AMPLitude This command is used to query the resistance sett...

Page 30: ...WELl Query Response NR2 7 21 SOURce DYNamic LOW LEVel NRf This command is used to set the low level load current in dynamic mode Command Syntax SOURce DYNamic LOW LEVel NRf Parameters MIN MAX MINimum...

Page 31: ...EW Query Response NR2 7 24 SOURce DYNamic SLEW RISE NRf This command is used to set the current rising slope in dynamic mode Command Syntax SOURce DYNamic SLEW RISE NRf Parameters MIN MAX MINimum MAXi...

Page 32: ...esponse NR2 7 26 SOURce DYNamic MODE mode This command is used to set the working mode in dynamic mode Command Syntax SOURce DYNamic MODE mode Parameters CONTinuous PULSe TOGGLe RST Value CONTinuous E...

Page 33: ...cumulates too much that is more than the cache can bear the last error of the sequence will be 350 Too Many Errors Query Syntax SYSTem ERRor Parameters None Query Response NR1 SRD Example SYSTem ERRor...

Page 34: ...All the buttons except for the LOCAL and Shift buttons will lose function In the remote state press LOCAL key return to local mode Command Syntax SYSTem REMote Parameters None Example SYST REM 8 6 SY...

Page 35: ...TIME VOLTage LOW 9 2 TIME VOLTage HIGH Voltage This command is used to set the starting drop voltage value of the load when measuring the fall time of voltage output Command Syntax TIME VOLTage HIGH V...

Page 36: ...ommand the front panel timing function disappears Command Syntax TIMing STATe bool Parameters 0 1 OFF ON Example TIM ON Query Syntax TIMing STATe Query Response 0 1 10 2 TIMing LOAD SETTing This comma...

Page 37: ...mple TIM LOAD VAL 1 Query Syntax TIMing LOAD VALue Query Response NR2 Related Commands If TIM LOAD SETT OFF is executed the setting of this command does not take effect 10 6 TIMing TSTart SOURce This...

Page 38: ...ource Parameters VOLT CURR EXT Example TIM TEND SOUR VOLT Query Syntax TIMing TEND SOURce Query Response source 10 10 TIMing TEND EDGE This command is used to set the trigger edge of the end test Comm...

Page 39: ...39 10 12 TIMing RESult This command is used to query Timing test results Command Syntax TIMing RESult Unit S Example TIM RES Query Response NR2...

Page 40: ...tes Details as following AAH Address Command 4 25 bytes are information content Parity code Description 1 Start bit is AAHoccupies one byte 2 Address range from 0 to 31 occupies one byte 0XFF is board...

Page 41: ...timer parameter 37H Read CW mode transient parameter 38H Set CR mode transient resistance and timer parameter 39H Read CR mode transient parameter 3AH Set the list operation mode CC 3BH Read the list...

Page 42: ...calibration on input of electronic Load Ensure the calibration protection mode is OFF state when setting calibration information If electronic load in calibration mode user can t change the input and...

Page 43: ...4 Input state 0 is OFF1is ON 5 25 Reserved From26 Checksum 12 3 Set Read max input voltag 22H 23H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 22H 23H 4 The Lowest byte of max voltage value 5...

Page 44: ...input power 26H 27H Byte Description 1 AAh 2 Address 0 0XFE 3 Command 26H 27H 4 The lowest byte of max power value 5 The lower byte of max power value 6 The higher byte of max power value 7 The highes...

Page 45: ...mode 2CH 2DH Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 2CH 2DH 4 The lowest byte of voltage value 5 The lower byte of voltage value 6 The higher byte of voltage value 7 The highest byte of...

Page 46: ...resistance value by 4 bytes of Hex Low byte to High byte order If resistance value is 200 000RHex code is 0X00030d404TH byte is 0X405TH byte is 0X0d6th byte is 0X037th byte is 0X00 12 11 Set Read CC...

Page 47: ...power A Low byte to High byte order 8 9 Time value of timer A Low byte to High byte order 1 represent 0 1mS 10 13 Setting value of power B Low byte to High byte order 14 15 Time value of timer B Low b...

Page 48: ...is REPEAT 65535 represents no limit 5 25 Reserved 26 Checksum 12 17 Set Read list step counts 3EH 3FH Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 3EH 3FH 4 5 LIST steps count 6 25 Reserved 26...

Page 49: ...te of time value in timer 1 represent 1S 5 The highest byte of time value in timer 8 25 Reserved 26 Checksum Time unit in Timer is S 1S is represented by 1 12 21 Disable Enable timer of FOR LOAD ON 52...

Page 50: ...H 57H 4 Remote mode state 0 OFF 1 ON 5 to 25 Reserved 26 Checksum 12 25 Set Read trigger source 58H 59H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 58H 59H 4 Trigger mode 0 Manual 1 External...

Page 51: ...2 TRANSITION 3 LIST 4 BATTERY 5 25 Reserved 26 Checksum 12 29 Read input voltage current power and relative state 5FH Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 5FH 4 7 Actual input voltage...

Page 52: ...max current max voltage min voltage max po Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 01H 4 7 Rated max current Low byte to High byte order 8 11 Rated max voltage Low byte to High byte orde...

Page 53: ...AAh 2 Address 0 31 0XFF 3 Command 82H 83H 4 Delay time 5 25 Reserved 26 Checksum 12 36 Enable Disable OCP function 84H 85H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 84H 85H 4 Set OCP state...

Page 54: ...H 8BH 4 7 The first measured value Low byte to High byte order 8 25 Reserved 26 Checksum 12 40 Set Read the second measured point 8CH 8DH Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 8CH 8DH 4...

Page 55: ...H 92H 4 Auto voltage range state 0 off 1 on 5 25 Reserved 26 Checksum 12 44 Enabel Disable CR LED function 93H 94H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command 93H 94H 4 CR LED mode 0 OFF 1 ON...

Page 56: ...Max input voltage Low byte to High byte order 8 11 Min input voltage Low byte to High byte order 12 15 Max input current Low byte to High byte order 16 19 Min input current Low byte to High byte orde...

Page 57: ...FF 3 Command A5H 4 7 min measured current Low byte to High byte order value resets after query 8 25 System reserve 26 Checksum 12 52 Read on load capacitance A6H Byte Description 1 AAh 2 Address 0 31...

Page 58: ...he voltage upper limit in CC mode Low byte to High byte order 8 25 System reserve 26 Checksum 12 56 Set Read the voltage lower limit in CC mode B6H B7H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Com...

Page 59: ...d BCH BDH 4 7 The voltage upper limit Low byte to High byte order 8 25 System reserve 26 Checksum 12 60 Set Read the voltage lower limit in CW mode BEH BFH Byte Description 1 AAh 2 Address 0 31 0XFF 3...

Page 60: ...C5H 4 7 The voltage lower limit Low byte to High byte order 8 25 System reserve 26 Checksum 12 64 Set Read the current range in list mode C6H C7H Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command C...

Page 61: ...teps Low byte to High byte order if one step need to pause then this bit should be set to 1 6 25 Reserved 26 Checksum 12 68 Set Read single step on load time of autotest mode D6H D7H Byte Description...

Page 62: ...DDH Byte Description 1 AAh 2 Address 0 31 0XFF 3 Command DCH DDH 4 Stop condition 0 complete 1 failure 5 25 Reserved 26 Checksum 12 72 Set Read autotest chain file DEH DFH Byte Description 1 AAh 2 Add...

Page 63: ...mmand and verify them If verify sum is wrong return the parameter 90H If setting parameter is wrong or over brim return parameter A0H If command is not enforce return to parameter B0H If command is in...

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