UNI-T UTL8200 8500 Series Electronic Load Communication Protocol User Manual

Operation Manual

UTL8200/8500 Series Electronic Load
Communication Protocol (SCPI)-V1.0
July 2020
Uni-Trend Technology (China) Co., Ltd.

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SCPI Command Introduction
All the protocol down programming data and up return data are presents by ASCII character string. A frame data ended by new line separator （0x0A） or carraige return （0x0D）. The protocol supports the data format as following,

1. ，integer, for example 123.
2. ，a number containing a decimal point, for example 1.234.
3. ，number express by scientific notation method, for example 1.23E+2.
4. ，extension format，including , , , for example 123, 0.123, 1.23E2.

5. <Nrf+>，including ,MIN,MAX， for example 123, 0.123, 1.23E2, MIN, MAX. MIN presents the minimum that can be set for load; MAX presents the minimum that can be set for load.

6. ，for example 0 | 1 or ON | OFF.

Data unit should follow data, if the unit is the default unit in the follow table, then the unit can be ignore.

There are some mnemonic symbols in SCPI command expression. These mnemonic symbols only express the meaning as the following table, it is not the actual contains in SCPI command.

Register Description
The protocol supporys four groups register,
1）Questionable Status Register Group
Questionable status register has three of 16bits register; it divided into status register, event register and enable register. When the corresponding bit of status register is changed, the corresponding bit of the event register will be set; if the corresponding bit of enable register is set, it produces an event (QUES set of status byte register.) After performing a read operation of event register, even register will go to zero. The definition of status register as following,

2. Standard Event Status Register Group
Standard event status register has two of 16 bits register; it divided into event register and enable register. If the corresponding bit of enable register is set, it produces an event (ESB set of status byte register.) After performing a read operation of event register, even register will go to zero. The definition of event register as following.

3. Operation Status Register Group
Operation status register has three of 16bits register; it divided into status register, event register and enable register. When the corresponding bit of status register is changed, the corresponding bit of the event register will be set; if the corresponding bit of enable register is set, it produces an event (OPER set of status byte register.) After performing a read operation of event register, even register will go to zero. The definition of status register as following,

Bit

| Name|

Meaning

---|---|---
Bit0| CAL| The load is on calibration status
Bit5| WTG| The load is on wait for trigger status

4. Status Byte Register Group
Status byte register has two of 8bits register, it divided into event reigerster and enable register. When the corresponding bit of event register is changed, it produces an event (RQS set of status byte register.) After performing a read operation of event register, even register will go to zero. The definition of event register as following,

Bit

| Name|

Meaning

---|---|---
Bit3| QUES| Set, if there is enable query status event
Bit4| MAV| Set, if the output queue has data
Bit5| ESB| Set, if there is enable standard event
Bit6| RQS|
Bit7| OPER|

Common Command
*CLS command is to delete register as following:*
Standard Event Status Register
Questionable Status Register
Operation Status Register
Status Byte Register error code
Command syntax CLS
ESE command is to complie the enable register value in standard event status register group.
Program parameter is decide which bit1 in standard event register will cause
ESB bit set bit1 in stauts byte register group.
Command syntax …………….ESE
Parameter………………………………… 0~255
Example ………………………………………..ESE 128
Query syntax………………………………… ESE?
Return parameterss………………………………
ESR? command is to read value from standard event register. Afte the command has been execured, value in standard event register will go to zero.
The bit definition of standard event register is the same as enable register in standard event status register group.
Query syntax…………………………………….. ESR?
Return parameterss………………………………….
IDN? command is to query the relevant information of device. The Return
parametersss are includes four segments, which separate by three comma.
Query syntax ……………………………………IDN?
Return parameterss ………………. segment………………… Description
UNI_T ……………………………..Manufaturer
xxxxxxxxx…………………. Serial number
1.2 Software version number*
Foe example, UNI_T, UTL8511C,xxxxxxxxx,1.2
OPC when all previous command have been executed, OPC bit in standard event register is set bit1.
Command syntax …………………………………OPC
Query syntax …………………………………………..OPC?
Return parameterss ……………………………………….
SRE command is to complied enable register value in status byte register group.
Program parameter is decide which bit 1 in status byte register will cause RQS bit set bit1 in status byte register. The bit definition of enable register in status byte register group is the same as status byte register.
Command syntax ………………..SRE
Parameter…………………………………………. 0~255
Example………………………………………….. SRE 128
Query syntax…………………………………… SRE?
Return parameterss……………………………
STB? command is to read value of status register. After the command has
been executed, value in status register will go to zero.
Query syntax……………………………………….STB?
Return parameterss……………………………………
TST? command is to run a self-inspection and repot error.
Query syntax……………………………TST?
Return parameterss ……………….. (0 presents no error）
Essential Command
System command
SYSTem:ERRor? …………………command is to query error message
Query syntax………………… SYSTem:ERRor[:NEXT]?
Return parameterss …………………….，
Example……………………………. SYST:ERR?
SYSTem:VERSion? command is to query SCPI version number of the load, format is YYYY.V
Query syntax………………… SYSTem:VERSion?
Return parameterss …………………，
Example…………………………..SYST:VERS?
SYSTem:SENSe command is to turn on/off remote compensation function.
Command syntax …………………SYSTem:SENSe[:STATe]
Parameter………………………………………0 | 1 | OFF|ON
Rest value………………………………..OFF
Example…………………………………..SYST:SENS ON
Query syntax…………………………………..SYSTem:SENSe[:STATe]?
Return parameterss…………………………. 0 | 1
SYSTem:LOCal command is to enter loack mode, operating the entire key of instrument panel.
Command syntax …………………………..SYSTem:LOCal
Example ………………………………….SYST:LOC
Query syntax…………………………. SYSTem:LOCal?
Return parameterss …………………0 | 1 (0: close-control，1: remote-control)
SYSTem:REMote command is to enter remote mode.
The entire key in front panal is forbidden except Shift-Local .Push Shit-Local to exit the mode.
Command syntax……………………………. SYSTem:REMote
Example………………………………………………… SYST:REM
Query syntax…………………………………………………. SYSTem:REMote?
Return parameterss ……………………………….0 | 1 (0: close-control，1: remote-control )
SYSTem:RWLock command is to enter remote mode, the entire key infront panel is forbidden.
Command syntax …………………SYSTem:RWLock
Example…………………………………..SYST:RWL ON
Query syntax………………………….. SYSTem:RWLock?
Return parameterss………………………….. 0 | 1
Status Command
STATus:QUEStionable? command is to read event register value in questionable register group.
Query syntax…………………………………… STATus:QUEStionable[:EVENt]?
Example………………………………………… STAT:QUES:EVEN?
Return parameterss…………………………………
STATus:QUEStionable:CONDition? command is to read status register value in questionabl register group.
Query syntax………………………… STATus:QUEStionable:CONDition?
Example…………………………………….STAT:QUES:COND?
Return parameterss……………………………..
STATus:QUEStionable:ENABle command is to set/read enable register value in questionable register group.
Command syntax ………………STATus:QUEStionable:ENABle <NRf+>
Parameter………………………………. 0~32767
Example…………………………………….. STAT:QUES:ENAB 32
Query syntax……………………………….. STATus:QUEStionalbe:ENABle?
Return parameterss …………………….
STATus:OPERation? command is to read event register in operation status register group.
Query syntax……………………………….. STATus:OPERation[:EVENt]?
Example…………………………………….. STAT:OPER:EVEN?
Return parameterss ……………………………………
STATus: OPERation:CONDition? command is to read status register in operation status register group.
Query syntax ………………………………..STATus:OPERation:CONDition?
Example……………………………………. STAT:OPER:COND?
Return parameterss……………………………..
STATus: OPERation:ENABle command is to set/read enable register value in operation status register group.
Command syntax …………………………………STATus:OPERation:ENABle <NRf+>
Parameter ………………………..0~32767
Example ……………………………….STAT:OPER:ENAB 32
Query syntax STATus:………………………OPERation:ENABle?
Return parameterss ………………………………
Import Configuration Command
Import control
[SOURce:]INPut command is to control the switch setting.
Command syntax……………………. [SOURce:]INPut[:STATe]
Parameter………………………… 0 | 1 | OFF | ON
Rest value……………………. OFF
Example……………………….. INP 1
Query syntax……………………… INPut[:STATe]?
Return paramters ………………………….0 | 1
[SOURce:]INPut:PAUSe command is to input enable or forbidden of pause status. This command is only take effect when the electronic in the four basic modes (CC, CV, CR, CP) and list mode.
Command syntax…………………….. [SOURce:]INPut:PAUSe
Parameter …………………………………….0 | 1 | OFF | ON
Reset value ………………………………………….OFF
Example ………………………………………….INP:PAUSe 1
Return syntax…………………………………… INPut:PAUSe?
Return parameters …………………………………0 | 1
[SOURce:]INPut:SHORt command is to input enable or forbidden of short- circuit status. This command is only take effect when the electronic load on loading in the four basic modes (CC, CV, CR, CP). The continuous time of short-circuit is decide by time parameter.
Command syntax…………………………. [SOURce:]INPut:SHORt
Parameter ………………………………………………….0 | 1 | OFF | ON
Reset value ………………………………………OFF
Example ………………………………………………..INP:SHOR 1
Return syntax ………………………………………….INPut:SHORt?
Return parameters………………………………. 0 | 1
[SOURce:]INPut:TRIG:SET command is to input trigger signal. This command is only operating when the load in manual trigger mode and wait for trigger, query returns wait trigger status.
Command syntax………………………… [SOURce:]INPut:TRIG:SET
Parameter………………………………………….. 1 | ON （0 or OFF is invalid）
Reset value…………………………………………………… OFF
Example ……………………………………………INP:TRIG:SET 1
Return syntax …………………………………………………..INPut:TRIG:SET?
Return parameters………………………………………. 0 | 1
[SOURce:]INPut:TRIG:MODE command is to set the trigger mode. This command is only take effect when the electronic load in dynamic mode or list mode.
Command syntax ……………………….[SOURce:]INPut:TRIG:MODE
Parameter………………………………………………………… 0 | 1 （0-manual，1-external）
Reset value……………………………………. 0
Example ……………………………………..INP:TRIG:MODE 1
Return syntax …………………………………….INPut:TRIG:MODE?
Return parameters………………………….. 0 | 1
System Parameter Setup
[SOURce:]CURRent:SLEW:RISE command is to set the rise rate of current.
Command syntax …………………………………[SOURce:]CURRent:SLEW:RISE <NRf+>
Parameter…………………………………………………… MIN ~ MAX | MINimum |MAXimum
Unit……………………………………………………….. A/uS
Reset value…………………………………………. MAXimum
Example……………………………………………………. CURR:SLEW:RISE 3
Return syntax………………………………………………. [SOURce:]CURRent:SLEW:RISE?
Return parameters……………………………………………….
[SOURce:]CURRent:SLEW:FALL command is to set the fall rate of current.
Command syntax ……………[SOURce:]CURRent:SLEW:RISE <NRf+>
Parameter………………………. MIN ~ MAX | MINimum |MAXimum
Unit………………………………. A/uS
Reset value……………………………… . MAXimum
Example…………………………. CURR:SLEW:RISE 3
Return syntax………………………………. [SOURce:]CURRent:SLEW:RISE?
Return parameters……………………………………………
[SOURce:]CURRent:PROTection command is to set the current protection value.
Command syntax………………………………. [SOURce:]CURRent:PROTection[:LEVel] <NRf+>
Parameter………………………………………. 0 ~ MAX | MINimum |MAXimum
Unit…………………………………………….. A
Reset value…………………………….. MAXimum
Example…………………………………… CURR:PROT 3
Return syntax……………………………………. [SOURce:]CURRent:PROTection[:LEVel]?
Return parameters ………………………….
[SOURce:]VOLTage:PROTection command is to set the over-voltage protection value.
Command syntax ……………………………[SOURce:] VOLTage:PROTection[:LEVel] <NRf+>
Parameter…………………….. 0 ~ MAX | MINimum |MAXimum
Unit…………………………………. A
Reset value……………. …..MAXimum
Example……………………. VOLT:PROT 3
Return syntax……………………. [SOURce:] VOLTage:PROTection[:LEVel]?
Return parameters………………………….
[SOURce:]POWer:PROTection command is to set the power protection value.
Command syntax…………………. [SOURce:]POWer:PROTection[:LEVel] <NRf+>
Parameter………………………… 0 ~ MAX | MINimum |MAXimum
Unit…………………………………… W
Reset value……………………………. MAXimum(wide-range)
Example………………………… POW:PROT 100
Return syntax………………………… [SOURce:]POWer:PROTection[:LEVel]?
Return parameters ………………………………..
[SOURce:]VOLTage:[LEVel:] ON command is to set the start on-loading voltage value (Von).
Command syntax ………………………[SOURce:]Voltage:[LEVel:]ON <NRf+>
Parameter………………………….. 0 ~ MAX | MINimum |MAXimum
Unit………………………………….. V
Reset value……………………………… 1
Example…………………………. VOLT:ON 3
Return syntax……………………… [SOURce:]VOLTage:[LEVel:]ON?
Return parameters………………………………………
[SOURce:]VOLTage:[LEVel:] OFF command is to set the start unloading voltage value.
Command syntax ……………………..[SOURce:]Voltage:[LEVel:]OFF <NRf+>
Parameter…………………………….. 0 ~ MAX | MINimum |MAXimum
Unit……………………………………… V
Reset value ………………………………..0.5
Example……………………………… VOLT:OFF 2
Return syntax………………………………….. [SOURce:]VOLTage:[LEVel:]OFF?
Return parameters ……………………………………..

Operation Mode Control

[SOURce:]FUNCtion
[SOURce:]MODE this two command are equivalent, it’s to select input mode of the electronic load.
Command syntax [SOURce:]FUNCtion [SOURce:]MODE

Reset value ……………………………..CURRent
Example………………………….. MODE RES
Return syntax……………………………. [SOURce:]FUNCtion? [SOURce:]MODE?
Return parameters …………………….< NR2> Return parameters description as following

Basic Mode Command

[SOURce:]CURRent command is to set the current in CC mode.
Command syntax…………….. [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <NRf+>
Parameter ………………………………0 ~ MAX
Unit………………………………………….. A
Reset value……………………………………. MINimum
Example…………………………………….. CURR 5
Return syntax……………………………………… [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]?
Return parameters ………………………
[SOURce:]VOLTage command is to set the voltage in CV mode.
Command syntax……………… [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <NRf+>
Parameter …………………..0 ~ MAX
Unit…………………. V
Reset value ………………….MAXimum
Example……………………… VOLT 5
Return syntax………………….. [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]?
Return parameters ………………………………………..
[SOURce:]P OWer command is to set power in CP mode.
Command syntax………………………[SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude] <NRf+>
Parameter ……………………………………0 ~ MAX
Unit…………………………………………………… W
Reset value ……………………………………………..MINimum
Example …………………………………………………POW 10
Return syntax……………………………………………..[SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude]?
Return parameters ………………………………………………..
[SOURce:]RESistance command is to set resistance in CR mode.
Command syntax…………………… [SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude] <NRf+>
Parameter……………… 0 ~ MAX
Unit…………………………………………….. ohm
Reset value ………………………….MAXimum
Example …………………………….RES 5
Return syntax………………………………………. [SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude]?
Return parameters ………………………………….

DYNamic Command

[SOURce:]DYNamic:HIGH command is to set high-level load current in dynamic mode.
Command syntax…………….. [SOURce:]DYNamic:HIGH[:LEVel] <NRf+>
Parameter……………………. 0 ~ MAX
Unit…………………………………. A
Reset value………………….. 0
Example………………………….. DYN:HIGH 10
Return syntax……………………. [SOURce:]DYNamic:HIGH[:LEVel]?
Return parameters ……………………………..
[SOURce:]DYNamic:HIGH:DWELl command is to set the continuous time of high-level load current in dynamic mode.
Command syntax …………………………..[SOURce:]DYNamic:HIGH:DWELI <NRf+>
Parameter…………………………….. 0.1 ~ 99999
Unit…………………………………. mS
Reset value…………………………. 0. 1
Example………………… DYN:HIGH:DWELl 0.01
Return syntax …………………………………………….[SOURce:]DYNamic:HIGH:DWELI?
Return parameters………………………………………….
[SOURce:]DYNamic:LOW command is to set low-level load current in dynamic mode.
Command syntax……………………… [SOURce:]DYNamic:LOW[:LEVel] <NRf+>
Parameter…………………………………………. 0 ~ MAX| MINimum |MAXimum
Unit…………………………………………… A
Reset value……………………………………………… 0
Example………………………………………. DYN:LOW 1
Return syntax…………………………………… [SOURce:]DYNamic:LOW[:LEVel]?
Return parameters ……………………………
[SOURce:]DYNamic:LOW:DWELl command is to set the continuous time of low- level load current in dynamic mode.
Command syntax…………………………… [SOURce:]DYNamic:LOW:DWELI <NRf+>
Parameter……………………………………………. 0.1 ~ 99999
Unit…………………………………………. mS
Reset value……………………………… 0.1
Example…………………………. DYN:LOW:DWELl 10
Return syntax………………………………… [SOURce:]DYNamic:LOW:DWELl?
Return parameters………………………………………
[SOURce:]DYNamic:SLEW:RISE command is to set the rise rate of dynamic mode.
Command syntax ………………[SOURce:]DYNamic:SLEW:RISE <NRf+>
Parameter…………………………… MIN ~ MAX | MINimum |MAXimum
Unit……………………………….. A/uS
Reset value…………………………. MAX
Example…………………….. DYN:SLEW:RISE 3
Return syntax……………………… [SOURce:]DYNamic:SLEW:RISE?
Return parameters ……………………………
[SOURce:]DYNamic:SLEW:FALL command is to set the fall rate of dynamic mode.
Command syntax……………….. [SOURce:]DYNamic:SLEW:FALL <NRf+>
Parameter………………………………………. MIN ~ MAX | MINimum |MAXimum
Unit……………………………………. A/uS
Reset value…………………………….. MAX
Example……………………………………. DYN:SLEW:FALL 3
Return syntax…………………………. [SOURce:]DYNamic:SLEW:FALL?
Return parameters ……………………….
[SOURce:]DYNamic:MODE command is to set operation mode in dynamic mode.
Command syntax………………… [SOURce:]DYNamic:MODE
Parameter…………………………………………………. CONTinuous | PULSe |TOGGle
Reset value ………………………CONTinuous
Example……………………… DYN:MODE PULS
Return syntax……………………. [SOURce:]DYNamic:MODE?
Return parameters ………………………
[SOURce:]DYNamic: REPeat command is to set the running repeat time in dynamic mode.
Command syntax………………………………………… [SOURce:]DYNamic:REPeat
Parameter……………………………………………………… 1~99999
Example……………………………………… DYN:REP 10
Return syntax …………………………………….[SOURce:]DYNamic:REP?
Return parameters ………………………………………

DYNV Command

[SOURce:]DYNV:HIGH command is to set high-level load constant voltage value in dynamic voltage mode.
Command syntax……………………… [SOURce:]DYNV:HIGH[:LEVel] <NRf+>
Parameter…………………………………….. 0 ~ MAX
Unit……………………………………….. V
Reset value…………………… 0
Example………………………………. DYNV:HIGH 10
Return syntax ……………………….[SOURce:] DYNV:HIGH[:LEVel]?
Return parameters ……………………………….
[SOURce:] DYNV:HIGH:DWELl command is to set the continuous time of high- level load constant voltage in dynamic voltage mode.
Command syntax …………………………….[SOURce:] DYNV:HIGH:DWELI <NRf+>
Parameter………………………………… 0.1 ~ 99999
Unit……………………………………………. mS
Reset value……………………………………… 0. 1
Example…………………………… DYNV:HIGH:DWEL 100
Return syntax…………………………. [SOURce:] DYNV:HIGH:DWEL?
Return parameters ……………………………………….
[SOURce:] DYNV:LOW command is to set the low-level load contant voltage in dynamic voltage mode.
Command syntax………………. [SOURce:] DYNV:LOW[:LEVel] <NRf+>
Parameter………………………….. 0 ~ MAX| MINimum |MAXimum
Unit……………………………….. V
Reset value…………………………0
Example………………………………….. DYNV:LOW 10
Return syntax………….. [SOURce:] DYNV:LOW[:LEVel]?
Return parameters ……………………..
[SOURce:] DYNV:LOW:DWELl command is to set the continuous time of low- level load constant voltage in dynamic voltage mode
Command syntax ……………………….[SOURce:] DYNV:LOW:DWELl <NRf+>
Parameter…………………………. 0.1 ~ 99999
Unit……………………………………… mS
Reset value………………………………… 0.1
Example……………………………………… DYNV:LOW:DWEL 100
Return syntax……………………….. [SOURce:] DYNV:LOW:DWEL?
Return parameters ……………………………
[SOURce:] DYNV:SLEW:RISE command is to set voltage rise rate of dynamic voltage mode.
Command syntax ……………………….[SOURce:] DYNV:SLEW:RISE <NRf+>
Parameter……………………… MIN ~ MAX | MINimum |MAXimum
Unit………………………………… V/uS
Reset value……………………. MAX
Example……………………………….. DYNV:SLEW:RISE 3
Return syntax …………………………….[SOURce:] DYNV:SLEW:RISE?
Return parameters ………………………………..
[SOURce:] DYNV:SLEW:FALL command is to set the voltage fall rate of dynamic voltage mode.
Command syntax ………………………………….[SOURce:] DYNV:SLEW:FALL <NRf+>
Parameter…………………. MIN ~ MAX | MINimum |MAXimum
Unit……………………………………………………. V/uS
Reset value …………………..MAX
Example………………….. DYNV:SLEW:FALL 3
Return syntax…………….. [SOURce:] DYNV:SLEW:FALL?
Return parameters …………………..
[SOURce:] DYNV:MODE command is to set operation mode in dynamic voltage mode.
Command syntax………………………………. [SOURce:] DYNV:MODE
Parameter………………………………. CONTinuous | PULSe |TOGGle
Reset value……………………………………..CONTinuous
Example………………………………………………………. DYNV:MODE PULS
Return syntax……………. [SOURce:] DYNV:MODE?
Return parameters ………………………
[SOURce:] DYNV:REPeat command is to set running repeat times in dynamic voltage mode.
Command syntax……………………. [SOURce:] DYNV:REPeat
Parameter…………………………………….. 1~99999
Example…………………………………………… DYNV:REP 10
Return syntax…………………………….. [SOURce:] DYNV:REP?
Return parameters ……………………………

LED Command

LED:VOLTage command is to set LED Vo.
Command syntax LED:VOLTage <Nrf+>
Parameter……………………… 0.001~MAX
Example……………………………. LED:VOLT 18
Return syntax…………………………. LED:VOLT?
Return……………………………
LED:CURRent command is to set LED Io.
Command syntax ………………..LED:CURRent <Nrf+>
Parameter……………………………………… 0~MAX
Example…………………………………………… LED:CURR 0.35
Return syntax …………………………………LED:CURR?
Return………………………………………………………
LED:RCOeff command is to set LED Rd Coeff.
Command syntax…………………… LED:RCOeff <Nrf+>
Parameter………………………. 0.001~1
Example……………………………… LED:RCO 0.2
Return syntax ………………………….LED:RCO?
Return…………………………….
Example……………………………………………… LIST:REPeat 3
Return syntax………………………………………….. [SOURce:]LIST:REPeat?
Return parameters …………………………….
[SOURce:]LIST:STEP command is to set execute list repeat steps.
Command syntax ………………………………….[SOURce:]LIST:STEP <Nrf+>
Parameter……………………………………. 1 ~ 16
Example………………………………………. LIST:STEP 3
Return syntax …………………..[SOURce:]LIST:STEP?
Return parameters ……………………………
[SOURce:]LIST:MODE command is to set the list continuous running and no exit abnormally.
Command syntax …………………………..[SOURce:] LIST:MODE
Parameter………………………… CONT | TRIG | CONTERR | CONTERR CONT(continuous), TRIG(trigger), CONTERR(continuous stop by error), CONTERR(continuous trigger stop by error)
Example…………………………………………
LIST:MODE CONT
Return syntax………………………………….. [SOURce:]LIST:MODE?
Return parameters…………………………………
[SOURce:]LIST:DISCharge command is to set discharge method of fast charge. Paramtere0 means turn off fast discharge, 1 means turn on fast discharge, greater than 128 means turn on fast charge list function.
Command syntax…………………… [SOURce:] LIST:DISCharge
Parameter………………………………………. 0 | 1 | 128 | 129
Example…………………………………………………. LIST:DISCharge 1
Return syntax ……………………………………[SOURce:]LIST:DISCharge?
Return parameters ………………………………………
[SOURce:]LIST:VSTart command is to set list self-starting voltage.
Command syntax ……………………………[SOURce:] LIST:VSTart
Example……………………………………………….. LIST:VSTart 3
Return syntax………………………………………….. [SOURce:]LIST:VSTart?
Return parameters ……………………………………….
[SOURce:]LIST:SET01:FCP command is to set the list first step of fast charge protocol. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax ………………………[SOURce:] LIST:SET01:FCP <Nrf+>
Parameter…………………………………….. 0 | 1.0 | 2.0 | 3.0 | 5.0 | 6.0 | 10.0 |
Example…………………………………. LIST:SET01:FCP 2.0
Return syntax…………………………….. [SOURce:]LIST:SET01:FCP?
Return parameters ………………….. ………………….Parameter meaning as following table

[SOURce:]LIST:SET01:VQC command is to set the list first step of fast voltage charge protocol. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax ………………………..[SOURce:] LIST:SET01:VQC <Nrf+>
Parameter…………………………………………. 3.3~21
Example………………………………………… LIST:SET01:VQC 5.0
Unit…………………………………………………….. V
Return syntax…………………………….. [SOURce:]LIST:SET01:VQC?
Return parameters ……………………………………
[SOURce:]LIST:SET01:MODE command is to set the list first step of on-load mode. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax………………………………….. [SOURce:] LIST:SET01:MODE <Nrf+>
Parameter…………………………………….. 0.0 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0
Example…………………………………… LIST:SET01:MODE 1.0
Return syntax…………………… [SOURce:]LIST:SET01:MODE?
Return parameters ………………………. Parameter meaning as following table

[SOURce:]LIST:SET01:VALue command is to set the the list first step of on-load constant value. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax………………………. [SOURce:] LIST:SET01:VALue <Nrf+>
Parameter……………………………….. 0~ MAXimum
Example………………………… LIST:SET01:VALue 3
Return syntax…………………. [SOURce:]LIST:SET01:VAL?
Return parameters……………………………………………
[SOURce:]LIST:SET01:DWELl c ommand is to set the list first step of on- load time. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax………………….. [SOURce:] LIST:SET01:DWELl <Nrf+>
Parameter………………………………. 0~ 99999
Unit………………………………. mS
Example……………………………. LIST:SET01:DWELl 1000
Return syntax…………………….. [SOURce:]LIST:SET01:DWELl?
Return parameters……………………………….
[SOURce:]LIST:SET01:PROTection command is to set the list first step of inspect item. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax …………………[SOURce:] LIST:SET01:PROTection <Nrf+>
Parameter…………………………. 0~ 99999
Unit……………………….. mS
Example……………………… LIST:SET01:PROTection 0.0
Return syntax…………………. [SOURce:]LIST:SET01:PROT?
Return parameters …………………………… Parameter meaning as following table

[SOURce:]LIST:SET01:UPPer command is to set the list first step of the high limit protection. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax ………………….[SOURce:] LIST:SET01:UPPer <Nrf+>
Parameter……………………………….0~ MAXimum
Example……………………………………LIST:SET01:UPPer 3.0
Return syntax………………………………………. [SOURce:]LIST:SET01:UPP?
Return parameters……………………………………………….
[SOURce:]LIST:SET01:LOWer command is to set the list first step of the low limit. The command step is named as SET with the corresponding number; the maximum number of step cannot exceed 16.
Command syntax …………………….[SOURce:] LIST:SET01:LOWer <Nrf+>
Parameter……………………. 0~ MAXimum
Example………………………………. LIST:SET01:LOWer 3.0
Return syntax………………………………. [SOURce:]LIST:SET01:LOW?
Return parameters …………………………………
[SOURce:]LIST:CALLing command is to recall the specified group of list file store in device.
Command syntax……………………………….[SOURce:] LIST:CALLing
Parameter………………………………………….. 1~ 60（corfirm by stored group numbers in device）
Example………………………………………. LIST:CALLing 3
Return syntax……………………………………….. [SOURce:]LIST:CALLing?
Return parameters ……………………………………255（255 means recall finised）
[SOURce:]LIST:RESult? command is to query running result of list mode.
Command syntax…………………….. [SOURce:] LIST:RESult?
Example………………………………………… LIST:RES?
Return parameters…………………………….. (0~65535)
Return parameters decription: …………. returns integer value, change it into binary number, from top to high, each bit presents single execute result, 1 presents execute successful, 0 presents execute failed.

MEASure Command

MEASure:VOLTage? command is to read the average value of voltage.
Command syntax ……………………….MEASure[:SCALar]:VOLTage[:DC]?
Example…………………………………………….. MEAS:VOLT?
Return parameters ……………………………….
MEASure:VOLTage:MAXimum? command is to read the peak value Vp+ of voltage.
Command syntax ………………………….MEASure[:SCALar]:VOLTage:MAXimum?
Example…………………………………. MEAS:VOLT:MAX?
Return parameters………………………………………………
MEASure:VOLTage:MINimum? command is to read the minimum value Vp- of voltage.
Command syntax …………………..MEASure[:SCALar]:VOLTage:MINimum?
Example………………………………………………. MEAS:VOLT:MIN?
Return parameters ……………………………………………
MEASure:VOLTage:PTPeak? command is to read peak-to-peak value Vpp of voltage.
Command syntax…………………………………. MEASure[:SCALar]:VOLTage:PTPeak?
Example…………………………………………………. MEAS:VOLT:PTP?
Return parameters ……………………………………………..
MEASure:CURRent? command is to read the average of current.
Command syntax ……………………………..MEASure[:SCALar]:CURRent[:DC]?
Example…………………………………………………….. MEAS:CURR?
Return parameters…………………………………………
MEASure:CURRent:MAXimum? command is to read the peak value Ip+ of current.
Command syntax ……………………………………………..MEASure[:SCALar]:CURRent:MAXimum?
Example……………………………………………………. MEAS:CURR:MAX?
Return parameters …………………………………………………………………..
MEASure:CURRent:MINimum? command is to read the minimum value Ipof current.
Command syntax…………………. MEASure[:SCALar]:CURRent:MINimum?
Example……………………………………………… MEAS:CURR:MIN?
Return parameters ………………………………………..
MEASure:CURRent:PTPeak? command is to read the peak-to-peak value Ipp of current.
Command syntax ……………………….MEASure[:SCALar]:CURRent:PTPeak?
Example………………………………………………….. MEAS:CURR:PTP?
Return parameters …………………………………………………..
MEASure:POWer? command is to read the average value of power.
Command syntax ……………………………..MEASure[:SCALar]:POWer[:DC]?
Example…………………………………….. MEAS:POWer?
Return parameters……………………………..
MEASure:RESistance? command is to read equivalent impedance.
Command syntax ………………………………..MEAS[:SCALar]:RESistance[:DC]?
Example………………………………………….. MEAS:RESistance?
Return parameters ,………………………………………..
MEASure:CAPacity? command is to read the battery capacity.
Command syntax ………………………………MEAS[:SCALar]:CAPacity[:DC]?
Example………………………………………………….. MEAS: CAPacity?
Return parameters……………………………………….

OCP Test Command

OCP[:STATe] c ommand is to start or stop OCP test
Command syntax ……………………..OCP[:STATe]
Parameter……………………………… 0 | 1 | OFF |ON
Example………………………………………. OCP ON
Return syntax ……………………………..OCP[:STATe]?
Return…………………………………………………. 0 | 1
OCP:ISTart command is to set the initial current of OCP.
Command syntax…………………………… OCP:ISTart <NRf+>
Parameter……………………………………………… 0 ~MAX
Unit………………………………………………. A
Example…………………………………………….. OCP:IST 3
Return syntax……………………………………… OCP:ISTart?
Return……………………………………………………
OCP:IEND command is to set the cut-off current of OCP.
Command syntax………………………. OCP:IEND <NRf+>
Parameter……………………………………….. 0 ~MAX
Unit………………………………………………….. A
Example……………………………………………… OCP:IEND 6
Return syntax…………………………………………….. OCP:IEND?
Return……………………………..
OCP:CSTep command is to set the step-current value of OCP.
Command syntax……………………………. OCP:CSTep
Example……………………………………………………. OCP:CSTep 0.1
Return syntax ……………………….OCP:CSTep?
Return………………………………………..
OCP:DWELl command is to set the dewell time of OCP single step.
Command syntax………………………….. OCP:DWELl <NRf+>
Parameter………………………………………… 0.1 ~99999
Unit………………………………………………………….. mS
Example………………………………….. OCP:DWEL 0.1S or OCP:DWEL 10mS
Return syntax…………………………………. OCP:DWEL?
Return…………………………………………….
OCP:VTRig command is to set OCP trigger level.
Command syntax ……………………………OCP:VTRig <NRf+>
Parameter ………………………………………….0.1 ~MAX
Unit………………………………………….. V
Example……………………..,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, OCP:VTR 11.8
Return syntax ……………………OCP:VTRig?
Return………………………………………………….
OCP:RESult[:OCP] command is to query the current value of OCP point.
Command syntax……………………….. OCP:RESult[:OCP]?
Unit………………………………………………………. A
Example…………………………………………………… .. OCP:RES?
Return parameters …………………………………………….<NRf+>
OCP:RESult:PMAX command is to query PMAX point.
Command syntax………………………………
OCP:RESult:PMAX?
Return parameters…………………………….. < NR2>
Unit……………………………………………………….. W
Example…………………………….. OCP:RES:PMAX?
Return…………………………………………… <NRf+>
It presents the maximum output power of PMAX point.

OPP Test Command

PP[:STATe] command is to start or stop the OPP test.
Command syntax ……………………..OPP[:STATe]
Parameter………………………………. 0 | 1 | OFF |ON
Example………………………………………. OPP ON
Return syntax ………………….OPP[:STATe]?
Return………………………………………………… 0 | 1
OPP:PSTart c ommand is to set the initial power of OPP.
Command syntax…………………………… OPP:PSTart <NRf+>
Parameter……………………………… 0 ~MAX
Unit………………………………………… W
Example……………………………. OPP:PST 10
Return syntax ………………………..OPP:PSTart?
Return……………………………………….
OPP:PEND command is to set the cut-off power of OPP.
Command syntax…………………….. OPP:PEND <NRf+>
Parameter……………………………………… 0 ~MAX
Unit………………………………………. W
Example………………………………. OPP:PEND 100
Return syntax ………………………………….OPP:PEND?
Return………………………………..
OPP:CSTep command is to set the step-power of OPP.
Command syntax………………………… OPP:CSTep
Example………………………………… OPP:CSTep 1.0
Return syntax ……………………..OPP:CSTep?
Return………………………………………………..
OPP:DWELl command is to set the dewell time of OPP single step.
Command syntax……………………………… OPP:DWELl <NRf+>
Parameter…………………………………………….. 0.1 ~99999
Unit………………………………………………… mS
Example…………………………………….. OPP:DWEL 100
Return syntax …………………………OPP:DWEL?
Return………………………
OPP:VTRig command is to set OPP trigger level.
Command syntax…………………….. OPP:VTRig <NRf+>
Parameter……………………………………………….. 0.1 ~MAX
Unit………………………………………………. V
Example…………………………………. OPP:VTR 11.8
Return syntax ……………………………………………….OPP:VTRig?
Return……………………………………………….
OPP:RESult command is to query the power value of OPP point.
Command syntax……………………….. OPP:RESult?
Unit……………………………………………… W
Example………………………………….. OPP:RES?
Return parameters ………………………………………<NRf+>

BATTery Test Command

BATTery:CURRent command is to set the discharge current value of battery constant current.
Command syntax BATTery:…………………………CURRent < NRf+>
Parameter,…………………………………… 0 ~MAX
Unit……………………………… A
Example……………………………………. BATT:CURR 3
Return syntax…………………… BATTery:CURR?
Return…………………………………………
BATTery:CCVoltage command is to set the cut-off voltage of discharge battery constant current.
Command syntax ………………………….BATTery:CCVoltage <NRf+>
Parameter……………………………………….. 0 ~MAX
Unit……………………………………. V
Example…………………………………….. BATT:CCV 5.0
Return syntax……………………………………… BATT:CCV?
Return………………………………….
BATTery:RESistance command is to set discharge resistance of battery constant resistance.
Command syntax……………………….. BATTery:RESistance <NRf+>
Parameter…………………………………….. 0 ~7.5K
Unit……………………………………………………… Ω
Example………………………………………………………… BATT:RES 100
Return syntax …………………………………………………..BATT:RES?
Return…………………………………………………….
BATTery:CRVoltage command is to set discharge cut-off voltage value of battery constant resistance.
Command syntax………………………………….. BATTery:CRVoltage
Parameter…………………….. 0 ~MAX
Unit……………………………… V
Example…………………………………….. BATT:……………………………….CRV 5.0
Return syntax ……………………..BATT:CRV?
Return…………………………………………………………
BATTery:POWer command is to set discharge power value of battery constant power.
Command syntax…………………………… BATTery:POWer <NRf+>
Parameter………………………………….. 0.1 ~MAX
Unit………………………………………………… W
Example………………………………………………….. BATT:POW 10.0
Return syntax………………………. BATT:POW?
Return………………………………..
BATTery:CPVoltage command is to set discharge cut-off voltage of battery constant power.
Command syntax ……………………………. BATTery:CPVoltage <NRf+>
Parameter………………………………………………… 0 ~MAX
Unit……………………………………………………………..V
Example……………………………………………………. BATT:CPV 10.0
Return syntax …………………………………….BATT:CPV?
Return ……………………………………………………………..

OVP Test Command

OVP[:STATe] command is to start or stop OVP test.
Command syntax ………………….OVP[:STATe]
Parameter……………………. 0 | 1 | OFF |ON
Example……………………… OVP ON
Return syntax…………………… OVP[:STATe]？
Return…………………………………….. 0 | 1
OVP:VTRig command is to set OVP trigger level.
Command syntax……………………… OVP:VTRig <NRf+>
Parameter ……………………………….. 1.0 ~MAX
Unit………………………………………………. V
Example……………………………. OVP:VTR 4
Return syntax ……………………OVP:VTRig?
Return…………………………………………………..
OVP:RESult[:OVP] command is to query the voltage value of OVP point.
Command syntax
OVP:RESult[:OVP]？
Return parameters………………………. <NRf+>
Unit…………………………………..V
Example…………………………………..OVP:RES?
Return,……………………………….
OVP:RESult:. TIME command is to query tovp.
Command syntax ……………………………OVP:RESult:TIME?
Unit………………………………….. mS
Example…………………………………. OVP:RES:TIME?
Return parameters ……………………………

TIMing Test Command

TIMing[:STATe] command is to start or stop Timing test.
Command syntax ……………..TIMing[:STATe]
Parameter…………………………………… 0 | 1 | OFF |ON
Example……………………………………… TIM ON
Return syntax ……………………….TIMing[:STATe]？
Return……………………………………….. 0 | 1
TIMing:LOAD:MODE command is to set on-load mode in Timing test.
Command syntax …………….TIMing:LOAD:MODE
Parameter……………………. CURR | VOLT | RES | POW | OFF
Example………………………………………. TIM:LOAD:MODE CURR
Return syntax……………… TIMing:LOAD:MODE?
Return……………………………… < NR2>
Relevant instructions……………………..If TIM:LOAD:SETT OFF ， then ignore the setting of this instruction.
TIMing:LOAD:VALue command is to set on-load parameter in Timing test.
Command syntax……………………………… TIMing:LOAD:VALue <Nrf+>
Parameter………………….. A/V/W/ohm, depend on TIMing:LOAD:MODE
Example……………………………………………. TIM:LOAD:VAL 1
Return syntax…………………………….. TIMing:LOAD:VALue?
Return…………………………
Relevant instructions If TIM:LOAD:SETT OFF，then ignore the setting of this instruction.
TIMing:TSTart:SOURce command is to set the start trigger source
Command syntax………………………… TIMing:TSTart:SOURce
Parameter………………………………………… CURR | VOLT | EXT
Example…………………………………………. TIM:TST:SOUR VOLT
Return syntax…………………………………. TIMing:TSTart:SOURce?
Return……………………………………………. < NR2>
TIMing:TSTart:EDGE command is to set the trigger edge of start test.
Command syntax…………………………. TIMing:TSTart:EDGE
Parameter……………. RISE |FALL
Example……………………………………. TIM:TST:EDGE RISE
Return syntax ……………………………..TIMing:TSTart:EDGE?
Return……………………………………………. < NR2>
TIMing:TSTart:LEVel command is to set the trigger level of start test Command syntax TIMing:TSTart:LEVel <Nrf+>.
Parameter……………….. depend on start trigger source, that is Timing:TSTart:SOURce
Example………………………. TIM:TST:LEV 1
Return syntax……………….. TIMing:TSTart:LEVel?
Return………………………………….
TIMing:TEND:SOURce command is to set the trigger source of the end of test.
Command syntax ………………………TIMing:TEND:SOURce
Parameter…………………………………. CURR | VOLT | EXT
Example………………………………………… TIM:TEND:SOUR VOLT
Return syntax ………TIMing:TEND:SOURce?
Return………………………………….. < NR2>
TIMing:TEND:EDGE command is to set the trigger edge of end of test.
Command syntax ………………..TIMing:TEND:EDGE
Parameter………………… RISE | FALL
Example…………………………. TIM:TEND:EDGE RISE
Return syntax T……………………………..IMing:TEND:EDGE?
Return………………………..
TIMing:TEND:LEVel command is to set the trigger level of the end of test
Command syntax………………………………………………. TIMing:TEND:LEVel <Nrf+>
Parameter ……………………………..depend on start trigger source, that is Timing:TEND:SOURce
Example……………………………………. TIM:TEND:LEV 5
Return syntax …………………………..TIMing:TEND:LEVel?
Return…………………
TIMing:RESult command is to query Timing test result.
Command syntax………………………….. TIMing:RESult?
Unit………………………………………. mS
Example……………………………….. TIM:RES?
Return…………………………………………
LEFF Test Command (Load Effect Test）
LEFF [:STATe] command is to start or stop LEFF test.
Command syntax …………………LEFF[:STATe]
Parameter………………………………………… 0 | 1 | OFF | ON
Example…………………………………………….. LEFF ON
Return syntax…………………………………… LEFF [:STATe]？
Return…………………………………………………. 0 | 1
LEFF:VOLTage command is to set the rated voltage in LEFF test.
Command syntax……………. LEFF:VOLTage <NRf+>
Parameter…………………………………….. 1.0 ~MAX
Unit…………………………………………….. V
Example……………………………………………. LEFF:VOLT 5
Return syntax ……………………..LEFF: VOLT?
Return……………………………………. < NRf+>
LEFF:CURRent comman is set rated current in LEFF test.
Command syntax………………………….. LEFF:CURRent <NRf+>
Parameter…………………………………… 0 ~MAX
Unit…………………………………………………….. A
Example……………………………………….. LEFF:CURR 3
Return syntax………………………………………… LEFF: CURR?
Return………………………………………… < NRf+>
LEFF:RESult command is to query LEFF test result.
Command syntax ……………………..LEFF:RESult?
Unit…………………………………………………. none
Return parameters ……………………………………..< NRf+>
Return parameters range ………………………………………0.0 – 1.0
QCM Test Command (Fast Charge Test）
QCModule:PROTocol command is to set the protocol of fast charge.
Command syntax……………….. QCModule: PROTocol
Parameter………………… NULL | QC2 | QC3 | QC4 | PD2 | PD3 | PE2 | BC12
Example……………………… QCM:PROT PD3
Return syntax…………………… QCM:PROT?
Return…………………………………… < NRf+>
Parameter description

QCModule:D+:VOLTage command is to query the actual voltage value on DP line.
Command syntax …………….QCModule:D+:VOLTage?
Parameter………………………….. 0~3.3
Unit………………………………… V
Example…………………………….. QCM:D+:VOLT?
Return………………………………… < NRf+>
QCModule:D+:SHORt command is to add 3.3V voltage to D+ (short-circuit test) in BC1.2 protocol.
Command syntax …………………QCModule:D+:SHORt < bool>
Parameter……………………………….. 0 | 1 | OFF | ON
Example……………………………………… QCM:D+:SHORt ON
Return syntax ………………………………………QCM:D+:SHOR?
Return parameters …………………………………………..< bool >
QCModule:D-:VOLTage command is to query the actual voltage value on DN line.
Command syntax………………………………… QCModule:D-:VOLTage?
Parameter………………………………………………………….. 0~3.3
Unit……………………………………………………………….. V
Example………………………………………………….. QCM:D-:VOLT?
Return………………………………………………… < NRf+>
QCModule:D-:SHORt command is to add 3.3V voltage to D- (short-circuit test) in BC1.2 protocol.
Command syntax …………………………QCModule:D-:SHORt < bool>
Parameter……………………….. 0 | 1 | OFF | ON
Example………………… QCM:D-:SHORt ON
Return syntax ……………………QCM:D-:SHOR?
Return parameters……………………….. < bool >
QCModule:PDO:COUNt command is to query the quantity of PD power/voltage object.
Command syntax…………………… QCModule:PDO:COUNt?
Unit…………………,…………………………… none
Example………………………….. QCM:PDO:COUN?
Return parameters ……………………………………< NRf+>
Return parameters range…………………………………………….. 0 – 7
QCModule:PDO:LIST command is to query the list of PD power/voltage.
Command syntax …………………….QCModule:PDO:LIST?
Unit…………………………………………………………. none
Example ………………………………………QCM:PDO:LIST?
Return parameters …………………..PDO parameter list，each line presents one of voltage object.

Returns data example

|

Description

---|---
FPS:5.0V/3.0A| Fixed power，5V/3A
BPS:12.0V-5.0V/18.0W| Battery supply, maximum  voltage 12V, minimum voltage 5V, maximum power18W
VPS:12.0V-5.0V/2.0A| Variable power, maximum voltage 12V, minimum voltage 5V, maximum current power
PPS: 11.0V-5.9V/3.0A| program-controlled power supply, maximum voltage 11V, minimum voltage 5.9V, maximum mcurrent 3A

QCModule:CONNect command is to query the connect status of fast charge protocol.
Command syntax ………………….QCModule:CONNect?
Unit………………………. none
Example……………………….. QCM:CONN?
Return parameters ………………………………..< NR2>
Return parameters range………………………………… 0(disconnected） | 1（connected）
QCModule:RUN command is to query the running status of fast charge command.
Command syntax …………………………..QCModule:RUN?
Unit…………………………………………………… none
Example……………………………………………………. QCM:RUN?
Return parameters……………………………….. < NR2>
Return parameters range…………………………………….. 0(not running or end of running） | 1 （running）
QCModule:RESult command is to query the running result of fast charge.
Command syntax ……………..QCModule:RESult?
Unit………………………………………none
Example……………………………………….QCM:RES?
Return parameters ………………………….< NR2>
Return parameters range………………………………………… 0（failed） | 1（successful）
QCModule:FUNCtion command is to set the running mode of fast charge and trigger the power/voltage output.
Command syntax ………………………QCModule:FUNCtion < mode>
Parameter…………………………………… QCFIX | QCSTEP | PEFIX | PDFIX | DPDN
Example……………………………….. QCM:FUNC PDFIX
Return syntax…………………………………. QCM:FUNC?
Return parameters……………………………… < NRf+>
Parameter decrpition

Parameter strings

| Return parameters|

Parameter descrpition

---|---|---
QCFIX| 0.0| QC constant voltage mode
QCSTEP| 1.0| QC stepped mode
PEFIX| 2.0| PE constant voltage mode
PDFIX| 4.0| PD constant voltage mode
DPDN| 5.0| DPDNtest mode(in QC protocol）
/| 6.0| List mode, it cannot set independently

Notes：DPDN test mode only can use in QC protocol.
QCModule:MODE command is to set the running mode of fast charge (the same as QCM: FUNC)
Command syntax ………………………QCModule:MODE < mode>
Parameter……………………………………….. QCFIX | QCSTEP | PEFIX | PDFIX | DPDN
Example………………………………………. QCM:MODE PDFIX
Return syntax……………………………… QCM:MODE?
Return parameters…………………………………. < NRf+>
Notes：DPDN test mode only can use in QC protocol.
QCModule:INPut command is to set the running switch of fast charge.
Command syntax …………………….QCModule: INPut < bool>
Parameter………………………….. 0 （invalid） | 1 | OFF（invalid） | ON
Example…………………………. QCM:INP ON
Return syntax ………………QCM:INP?
Return parameters…………………………….. < bool >
QCModule:QC:VOLTage command is to set the voltage value in QC constant voltage mode.
Command syntax……………………………………………………… QCModule:QC:VOLTage < NRf+>
ParameterUnit………………………………………………. V
Parameter range …………………………………………..3.3-20
Example……………………………………… QCM:QC:VOLT 9
Return syntax………………………. QCM:QC:VOLT?
Return parameters ……………………………….< NRf+>
QCModule:QC:STARt command is to set the initial voltage value in QC stepped mode.
Command syntax …………………..QCModule:QC:STARt < NRf+>
ParameterUnit……………………….. V
Example…………………………… QCM:QC: STAR 9
Return syntax ……………………QCM:QC:STAR?
Return parameters……………………. < NRf+>
QCModule:QC:STEP command is to set step voltage value in QC stepped mode.
Command syntax………………………….. QCModule:QC:STEP < NRf+>
ParameterUnit ……………………………….V
Example…………………………………………… QCM:QC:STEP 0.2
Return syntax………………….. QCM:QC:STEP?
Return parameters ………………………………..< NRf+>
QCModule:QC:END command is to set the end voltage value in QC stepped mode.
Command syntax ………………………QCModule:QC:END < NRf+>
ParameterUnit……………………………………………………. V
Example……………………………………… QCM:QC:END 12
Return syntax …………………………………………………QCM:QC:END?
Return parameters………………………………….. < NRf+>
QCModule:QC:DWELl command is to set dewell time of single step in QC stepped mode.
Command syntax ……………………………QCModule:QC:DWELl < NRf+>
ParameterUnit ……………………………………….S
Example………………………………………………. QCM:QC:DWELl 1000
Return syntax ………………………QCM:QC:DWELl?
Return parameters ……………………..< NRf+>
Parameter range …………………………….100-99999
QCModule:QC:TRIGger command is to set trigger mode in QC stepped mode.
Command syntax ………………..QCModule:QC:TRIGger < NRf+>
Parameter 0 ………………………………..（manual） | 1（auto）
ParameterUnit ……………………………………….none
Example………………………………………… QCM:QC:TRIGger 1
Return syntax …………………………………..QCM:QC:TRIGger?
Return parameters…………………………………………………. < NRf+>
QCModule:QC:MANual command is to send manual trigger in QC stepped mode, this command is only take effect in QC stepped mode and trigger mode must be manual.
Command syntax …………….QCModule:QC:MANual < bool>
Parameter 0 (invalid）……………………….. | 1 | OFF(invalid）| ON
ParameterUnit………………………… none
Example…………………………………………QCM:QC:MANual ON
QCModule:DPDN:PVOLtage command is to set DP voltage value in DPDN test mode.
Command syntax…………………. QCModule:DPDN:PVOLtage < NRf+>
Parameter unit……………………………. V
Example…………………………………… QCM:DPDN:PVOLtage 0.6
Parameter range…………………………………….. 0-3.3
Return syntax………………………………………. QCM:DPDN:PVOL?
Return parameters ……………………………………..< NRf+>
QCModule:DPDN:NVOLtage command is to set DN voltage value in DPDN test mode.
Command syntax……………………….QCModule:DPDN:NVOLtage < NRf+>
Parameter unit ………………………..V
Example………………………………………. QCM:DPDN:NVOLtage 0.6
Parameter range………………………………… 0-3.3
Return syntax ………………………………….QCM:DPDN:NVOL?
Return parameters ……………………..< NRf+>
QCModule:DPDN:VERRor command is to set the allowance error voltage value in DPDN test mode.
Command syntax …………………………QCModule:DPDN:VERRor < NRf+>
Parameter unit ……………………………………………V
Example……………………………… QCM:DPDN:VERRor 0.2
Parameter range ……………………………..0-3.3
Return syntax………………………… QCM:DPDN:VERR?
Return parameters ……………………………………..< NRf+>
QCModule:DPDN:DWELl command is to set the continuous time value in DPDN test mode.
Command syntax………………………………………………. QCModule:DPDN:DWELl < NRf+>
Parameter unit……………………………………. ms
Example…………………………………….. QCM:DPDN:DWELl 500
Parameter range ………………….100-99999
Return syntax ………………….QCM:DPDN:DWELl?
Return parameters…………………………… < NRf+>
QCModule:PE:VOLTage command is to set the voltage value in PE constant voltage mode.
Command syntax ………………………….QCModule:PE:VOLTage < NRf+>
Parameter unit…………………………. V
Example…………………………………………….QCM:PE:VOLTage 5
Parameter range ……………………………………3.3-20
Return syntax………………… QCM:PE:VOLT?
Return parameters…………………………………… < NRf+>
QCModule:PD:VOLTage command is set the voltage value in UPD constant voltage mode.
Command syntax ……………………………….QCModule:PD:VOLTage < NRf+>
Parameter unit …………………………………..V
Example………………………………………………… QCM:PD:VOLTage 5
Parameter range ……………………………..3.3-21
Return syntax …………………………………….QCM:PD:VOLT?
Return parameters …………………………………………….< NRf+>
QCModule:PD:CURRen t command is to set the current value in UPD constant voltage mode.
Command syntax …………………….QCModule:PD:CURRent < NRf+>
Parameter unit ……………………………..A
Example……………………………………. QCM:PD:CURRent 3
Parameter range……………………………………. 0-5
Return syntax ……………………………………….QCM:PD:CURR?
Return parameters ……………………………………………< NRf+>
QCModule:PD:PDONumber command is to the voltage object serial number in UPD constant voltage mode.
Command syntax……………………………… QCModule:PD:PDONumber < NR2>
Parameter unit …………………………………none
Example…………………………………………… QCM:PD:PDON 3
Parameter range……………….. 1-7，depend on the actual voltage object quantity to select, it must greater than 0
Return syntax ………………………………………..QCM:PD:PDON?
Return parameters ……………………< NRf+>
The operation sequence description of remote fast charge:

1. Select fast charge protocol（PROTocol）
2. Wait for connecting（the process may takes 1-3 seconds）
3. Set pattern parameter（ It has five run mode and each pattern parameter should be set.）
4. Select run mode（FUNCtion/MODE）
5. Start to run（INPut，constant voltage mode can skip this step）
6. wait to the end of run（the process may takes 1-10seconds, don’t need send the end of run command.）
7. Query the run result (RESult?)

Programmable example：

QC2.0/QC3.0 Fixed Point Test

QCM:PROT QC2| Set the fast charge protocol
QCM:CONN?| Inspect handshake status, send instruction continuously when returns value 1
QCM:QC:VOLT 9| Set the output voltage
QCM:FUNC QCFIX| Select fixed point and trigger output
MODE CURR| Select constant current mode
CURR 1A| Constant current value 1A
INPUT ON| Turn on on-load
INPUT OFF| Turn off on-load
QCM:PROT NULL| Exit fast charge protocol

QC3.0/QC4.0 Stepped Test

QCM:PROT QC3| Set the fast charge protocol
QCM:CONN?| Inspect handshake status, send instruction continuously when returns value 1
QCM:QC:STAR 5| Initial voltage：5V
QCM:QC:STEP 0.2| Stepped voltage：0.2V
QCM:QC:END 12| The end of run voltage：12V
QCM:QC:DWEL 0.1| Stepped time：0.1s
Stepped time = stepped voltage÷0.2×0.1 s
QCM:QC:TRIG 1| Trigger mode：Auto trigger
QCM:MODE QCSTEP| Fast charge mode：stepped mode
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QCM:INP ON| Turn on stepped test
MODE CURR| Select constant current mode
CURR 1A| Constant current value 1A
INPUT ON| Turn on on-load
INPUT OFF| Turn off on-load
QCM:PROT NULL| Exit fast charge protocol

PD2.0/PD3.0 Fixed Point Test

QCM:PROT PD3| Set the fast charge protocol
QCM:CONN?| Inspect handshake status, send instruction continuously when returns value 1
QCM:PDO:COUN?| Query the quantity of power/voltage object PD (this command is not necessary)
QCM:PDO:LIST?| Query the list of PD power/voltage (this command is not necessary)
QCM:PD:PDON 2| Serial number of voltage object：1
QCM:PD:VOLT 9| Output voltage：9V
QCM:PD:CURR 2| Output current：2A
QCM:MODE PDFIX| Select fixed point and trigger output
MODE CURR| Select constant current mode
CURR 1A| Constant current value 1A
INPUT ON| Turn on on-load
INPUT OFF| Turn off on-load
QCM:PROT NULL| Exit fast charge protocol

PEAK TEST Command

PEAK command os to read maximum/minimum value after starting the test.
PEAK:VOLTage:MAXimum? command is to read the maximum value of voltage.
Command syntax ………………..PEAK:VOLTage:MAXimum?
Example……………………………………………. PEAK:VOLT:MAX?
Return parameters …………………………………………….
PEAK:VOLTage:MINimum? command is to read the minimum value of voltage.
Command syntax………………………………….. PEAK:VOLTage:MINimum?
Example…………………………………………….. PEAK:VOLT:MIN?
Return parameters…………………………………………..
PEAK:CURRen:MAXimum? command is to read the maximum value of current.
Command syntax………………. PEAK:CURRent:MAXimum?
Example…………………………. PEAK:CURR:MAX?
Return parameters …………………….
PEAK:CURRent:MINimum? command is to read minimum value of current.
Command syntax……………………………… PEAK:CURRent:MINimum?
Example……………………………………… PEAK:CURR:MIN?
Return parameters………………………….
[SOURce:]CHAN command is used to set the channel
Command syntax………………………. [SOURce:]CHAN
Parameter………………………………………… 1 | 2
Example………………………………………. CHAN1
Return syntax………………………………….. [SOURce:]CHAN?
Return parameters……………………………….. 1 | 2
Notes：

1. UTL8200/ UTL8500 series electronic load is communicated by serial port RS232 if no other specific description, serial port parameters:
   Baud rate： 4800bps/9600bps（Default）/19.2Kbps/38.4Kbps/57.6Kbps/115.2Kbps
   Data bit ：8bits；
   Stop bit ：1bit；
   Check bit： none；
   Flow control ：none

2. If electronic load has no data to respond when the upper computer send SCPI command, the shift message in standard event status register as the answer message to response, the detailed content see the register description.

3. The short time interval can not less than 30ms between in two SCPI command when upper computer continuous to send.

4. This protocol differs from the standard SCPI, UTL8200/ UTL8500 series electronic load support each command only operating one single data.

5. This protocol includes the part of remote control operation, user can contact us to get other remoter operation. Our company can compile SCPI protocol as custom made.

In addition, we can implement real-time updates.
UTL8200/8500 Electronic Load Series Communication Protocol

Documents / Resources

| UNI-T UTL8200 8500 Series Electronic Load Communication Protocol [pdf] User Manual
UTL8200 8500 Series Electronic Load Communication Protocol, UTL8200 8500 Series, Electronic Load Communication Protocol, Load Communication Protocol, Communication Protocol, Protocol
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References

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