I-Tech IT6322 User manual

1
IT6322 SCPI
Three outputs Programmable Power Supply
Models IT6322
© Copyright 2005 All Rights Reserved
Ver1.1/MAR, 2008/ IT6300-508

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Directory
About your safety...................................................................................................................................................3
Certification and Warranty....................................................................................................................................3
Chapter 1 Remote Operation Mode.................................................................................................................5
1.1 IT-E131 RS232 COMMUNICATION CABLE .............................................................................................................5
1.2 IT-E132 USB COMMUNICATION CABLE .................................................................................................................5
1.3 IT-E135 GPIB COMMUNICATION CABLE ...............................................................................................................5
Chapter 2 Communication Order for IT6322.....................................................................................................7
2.1 IEEE488.2 COMMON ORDER................................................................................................................................7
2.2 SCPI ESSENTIAL ORDER.......................................................................................................................................7
2.3 SCPI NONSTANDAR ORDER ..................................................................................................................................8
2.3 SCPI ORDER DESCRIPTION...................................................................................................................................9
Chapter 3 SCPI Condition Register....................................................................................................................9
Chapter 4 SCPI Order Description.................................................................................................................... 11
4.1 IEEE488.2 COMMON ORDER..............................................................................................................................11
4.2 SCPI ESSENTIAL ORDER.....................................................................................................................................13

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About your safety
Pease review the following safety precautions before operating our equipment.
General information
The following safety precautions should be observed before using this product and any associated
instrumentations. Although some instruments and accessories would be used with non-hazardous
voltages, there are situations where hazardous conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar
with the safety precautions required to avoid possible injury. Read and follow all installation, operation,
and maintenance information carefully before using the product. Refer to this manual for complete
product specifications.
If the product is used in a manner not specified, the protection provided by the product may be
impaired.
Before performing any maintenance, disconnect the line cord and all test cables.
Protection from electric shock
Operators of this instrument must be protected from electric shock at all times. The responsible body
must ensure that operators are prevented access and/or insulated from every connection point. In some
cases, connections must be exposed to potential human contact. Product operators in these
circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is
capable of operating at or above 1000 volts, no conductive part of the circuit may be exposed.
Definition of users
Responsible body is the individual or group responsible for the use and maintenance of equipment is
operated within its specifications and operating limits, and for ensuring that operators are adequately
trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures
and proper use of the instrument. They must be protected from electric shock and contact with
hazardous live circuits.
Service is only to be performed by qualified service personnel.
Safety symbols and terms
Connect it to safety earth ground using the wire recommended in the user manual.
The symbol on an instrument indicates that the user should refer to the operating
instructions located in the manual.
High voltage danger
Certification and Warranty
Certification
We certify that this product met its published specifications at time of shipment from the factory.

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Warranty
This instrument product is warranted against defects in material and workmanship for a period of one
year from date of delivery. During the warranty period we will, at its option, either repair or replace
products which prove to be defective. For warranty service, with the exception of warranty options, this
product must be returned to a service facility designated by us. Customer shall prepay shipping charges
by (and shall pay all duty and taxes) for products returned to the supplier for warranty service. Except
for products returned to customer from another country, supplier shall pay for return of products to
customer.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by
the Customer, Customer-supplied software or interfacing, unauthorized modification or misuse,
operation outside of the environmental specifications for the product, or improper site preparation and
maintenance.

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Chapter 1 Remote Operation Mode
The DB9 interface connector on the rear panel of the power supply can be transferred to RS-232
interface, the following information will tell you how to use the computer to control the output of the
power supply.
1.1 IT-E131 RS232 Communication cable
The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use the
communication cable (IT-E131) to connect the DB9 interface connector of the power supply and the
RS-232 interface connector of computer for the communication.
PC Load
IT-E131 communication cable
COMPUTER
INSTRUMENT
RX
TX
IT-E131 ISOLATED
COMMUNICATION CABLE
TTL(5V)RS232 ISOLATION
859666668889942311
IT
COMPUTER
INSTRUMENT
RX
TX
IT-E131 ISOLATED
COMMUNICATION CABLE
TTL(5V)RS232 ISOLATION
859666668889942311
IT
Power
supply
PC
1.2 IT-E132 USB Communication cable
The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use
the communication cable (IT-E132) to connect the DB9 interface connector of the power supply
and the USB interface connector of computer for the communication.
PC Load
IT-E131 communication cable
COMPUTER
INSTRUMENT
RX
TX
IT-E131 ISOLATED
COMMUNICATION CABLE
TTL(5V)RS232 ISOLATION
859666668889942311
IT
COMPUTER
INSTRUMENT
RX
TX
IT-E131 ISOLATED
COMMUNICATION CABLE
TTL(5V)RS232 ISOLATION
859666668889942311
IT
Power
supply
PC
1.3 IT-E135 GPIB Communication Cable
The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use
the GPIB communication cable (IT-E135) to connect the DB9 interface connector of the power
supply, and then connect the GPIB interface of the IT-E135 and computer with GPIB/IEEE 488 line
for the communication.
IT-E132 communication

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IT-E135 ISOLATED
Serial /IEEE 488 Controller
IT-E135 outer communication adapter
COM interface of
Power supply GPIB line
Note: Forbidden to connect DB9 connector in power supply directly with PC or other RS232 port.

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Chapter 2 Communication Order for IT6322
2.1 IEEE488.2 Common Order
*CLS
*ESE
*ESE?
*ESR?
*IDN?
*OPC
*OPC?
*PSC
*PSC?
*RST
*SRE
*SRE?
*STB?
*SAV
*RCL
2.2 SCPI Essential Order
SYSTem
:ERRor?
:VERSion?
:BEEPer[:IMMediate]
:ADDRess?
STATus
:QUEStionable
:ENABle <enable value>
:ENABle?
[:EVENt]?
:CONDition?
:OPERation
:ENABle <enable value>
:ENABle?
[:EVENt]?
:CONDition?
:INSTrumenu
[:EVENt]?
:ENABle <value>
:ENABle?

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CONDition?
INSTrument
[:SELect] {FIRst|SECOnd|THIrd}
[:SELect]?
NSELect {1|2|3}
NSELect?
OUTPut
[:STATe] {0|1}
[:STATe]?
[SOURce:]
CURRent[:LEVel][:IMMediate][:AMPLitude] {<current>|MIN|MAX}
CURRent[:LEVel][:IMMediate][:AMPLitude]? {MIN|MAX}
VOLTage[:LEVel][:IMMediate][:AMPLitude] {<voltage>|MIN|MAX}
VOLTage[:LEVel][:IMMediate][:AMPLitude]? {MIN|MAX}
VOLTage:PROTection[:LEVel][:IMMediate][:AMPLitude]
VOLTage:PROTection[:LEVel][:IMMediate][:AMPLitude]?
2.3 SCPI Nonstandar Order
CALibration
:SECure[:STATe] {ON|OFF,<quoted code>}
:SECure[:STATe]?
:VOLTage
LEVel <level>
[:DATA] <voltage value>
:CURRent
LEVel <level>
[:DATA] <current value>
:CODE
:SAVe
:INITital
OUTPut
:TIMer
:DATA<time>
:DATA?
SYSTem
:LOCal
:REMote
:RWLock
DISPlay:

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[:WINDow][:STATe] {OFF|ON}
[:WINDow][:STATe]?
MEASure[:SCALer]
:CURRent[:DC]?
[:VOLTage][:DC]?
:POWer[:DC]?
2.3 SCPI Order Description
Chapter 3 SCPI Condition Register
You can get the condition of power supply and read parameter from the operation register. The power
supply can get the different state by 7 condition registers. These registers are status byte register,
standard event register, quest condition register and operation status register. The status byte register
stores the information of 3 other register. You can get each register’s meaning from the following table:
bit code meaning
0 CAL The power supply is calculating new calibration parameter.
1 UNR The status of power supply is unregulated.
2 CV The power supply is in constant voltage condition.
3 CC The power supply is in constant current condition.
Operation
status
sub register 4 RI Not used
0 OV Not usedQuest condition
register 1 OT Over temperature
0 OPC Operation of power supply is completed.
2 QYE Query error. Data of output array is missing.
3 DDE Device-dependent error. Data stored in register is missing or error
occurs in preliminary checkout.
4 EXE Execution error. Order parameter overflows or the condition is not
right.
5 CME Command error. Syntax or semantic error occurs when receiving
information.
Standard event
register
7 PON Power on. It is 1when power supply is reset.
3 QUES If a quest enable condition changes, QUES is 1.
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5 ESB If a standard event status enable register changes, ESB is 1.
6 MSS
Status
byte register 7 OPER If a operation event enable register changes, OPER is 1.
1 INST1 If the status of one operation status sub register changes, INST is1
2 INST2 As above
operation
status register 3 INST3 As above

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Structure of condition register as following:
condition event enable condition event enable condition event enable
CAL CAL CAL CAL CAL CAL CAL CAL CAL
UNR UNR UNR UNR UNR UNR UNR UNR UN
R
CV CV CV CC CC CC CV CV CV
CC CC CC CV CV CV CC CC CC
or o
r
o
r
Operation status sub register(channel 1) Operation status sub register(channel 2) Operation status sub register(channel 3)
condition event enable
INST1 INST1 INST1
INST2 INST2 INST2
INST3 INST3 INST3
o
r
Operationstatusregister
condition event enable event enable
OPC OPC OPC
QYE QYE QYE
DDE DDE DDE QUES QUES
EXE EXE EXE
CME CME CME ESB ESB
RQS RQS
PON PON PON
or
OPER OPER
or
Standard event register Status byte register
condition event enable
OV OV OV Lowest bit: 0
OT OT OT First bit: 1
Second bit: 2
Third bit: 3
Forth bit: 4
Fifth bit: 5
Sixth bit: 6
or
Highest bit: 7
Quest condition register
Note:
The bit array of each
register is as right
table:

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Chapter 4 SCPI Order Description
4.1 IEEE488.2 Common Order
*CLS
This order can clean the register as follows:：
Standard event status register
Quest condition register
Operation status register
Operation status sub register
Status byte register
Error code
Order syntax：*CLS
Parameter：None
*ESE
This order can set the parameter of standard event enable register. Setting parameter can determine
which bit value of standard event register is 1 and the byte will enable ESB of status byte register is
1.
Order syntax：*ESE <NRf>
Parameter：0~255
Reset value：Consult *PSC order
Example：*ESE 128
*ESR?
This order can read the value of standard event status register. After executing this order, standard
event status register is reset. Bit definition of standard event status register is as the same as the
standard event status enable register
Quest syntax：*ESR？
Return parameter：<NR1>
Example: *ESR？
*IDN？
This order can read information about power supply. The parameter it returns contains 4 segments
divided by comma.
Quest syntax：*IDN？
Return parameter：<AARD> segment description
ITECH manufacturer
XXXX product mode
XXXXXX product serial number
VX．XX software version number

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For example：ITECH, 6322, 000000000000111101,V1.68
*OPC
When all orders before this order are executed, OPC is 1 of the standard event status register.
Order syntax：*OPC
Quest syntax：*OPC？
Example：*OPC
*PSC
This order control if power supply send a query or not when it is reset.
1|ON：When power supply is reset, operation event enable register, query event enable register
and standard event status register are all reset.
0|OFF：The data of operation event enable register, quest event enable register and standard event
status enable register is stored in nonvolatile register, and is recalled when power supply is reset.
Order syntax：*PSC
Parameter：0|1|ON|OFF
Return parameter：data stored
Example：*PSC ON
*RST
This order reset the power supply to default setting.
Order syntax：*RST
Example：*RST
*SRE
This order can set the parameter of status byte enableregister. Setting parameter can determine
which byte value of status byte register is 1 and the byte will enable RQS of status byte register is 1.
Bit definition of status byte enable register is as the same as the status byte register.
Order syntax：*SRE <parameter>
Parameter：0~255
Reset value：consult order *PSC
Example：*SRE 110
*STB？
This order can read the data from status byte register. After executing this order, status byte register
is reset.
Order syntax：*STB？
Return parameter：<NR1>
Example：*STB？
*SAV
This order can save the parameters of power supply to register. These parameter contains constant

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current, constant voltage, maximum voltage value and step voltage value.
Order syntax：*SAV
Parameter：0~49
Example：*SAV 10
*RCL
This order can recall the parameter you saved before from the register.
Order syntax：*RCL
Parameter：0~49
Example：*RCL 10
4.2 SCPI Essential Order
SYSTem:ERRor
This order can get the error code and error information of the power supply.
Order syntax：SYSTem:ERRor?
Return parameter：please consult the error information table
Example：SYST:ERR?
SYSTem:VERSion
This order can query the software version.
Order syntax：SYSTem:VERSion?
Return parameter：software version
Example：SYST:VERS?
SYSTem:BEEPer
This order can make the buzzer moo.
Order syntax：SYSTem:BEEPer[:IMMediate]
Example YST:BEEP
SYSTem:LOCal
This order can set SOURCE METER as panel control mode.
Order syntax：SYSTem:LOCal
Example：SYST:LOC
SYSTem:REMote
This order can set SOURCE METER as remote control mode.
Order syntax：SYSTem:REMote
Example：SYST:REM
SYST:RWLock
This order can set SOURCE METER an remote control mode. But this order can not enable
LOCATE key to change into panel control mode.
Order syntax：SYSTem:RWLock

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Example：SYST:RWL
SYSTem:ADDRess
This order can check the communication address of power supply.
Order syntax：SYSTem:ADDRess?
Example：SYST:ADDR?
STATus:QUEStionable:ENABle
This order can set the parameter of quest event enable register. Setting parameter can determine
which bit value of quest event register is 1 and the bit will enable QUES of status byte register is 1.
Order syntax：STATus:QUEStionable:ENABle <parameter>
Parameter：0~255
Reset value：consult PSC order
Example：STAT：QUES：ENAB 110
STATus:QUEStionable:ENABle?
This order can set the parameter of quest event enable register. After this order executed, quest
event enable register is reset.
Order syntax：STATus:QUEStionable:ENABle？
Return parameter：<NR1>
Example：STAT:QUES:ENAB?
STATus:QUEStionable?
This order can read parameter from the quest event register. After this order executed, quest event
register is register.
Order syntax：STATus:QUEStionable[:EVENt]?
Return parameter：<NR1>。
Example：STAT:QUES?
STATus:QUEStionable:CONDition?
This order can read the parameter from quest condition register. When a bit of quest condition
changes, the bit value corresponding in quest event register is 1.
Order syntax:：STATus:QUEStionable:CONDition?
Return parameter：<NR1>
Example：STAT:QUES:COND?
STATus:OPERation ENABle
This order can set the parameter of quest event enable register. Setting parameter can determine
which bit value of quest event register is 1 and the bit will enable QUES of status byte register is 1.
Order syntax：STATus: OPERation:ENABle
Parameter：0~255
Reset value：consult PSC order
Example：STAT:OPER:ENAB 110

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STATus:OPERation:ENABle?
This order can read parameter from the operation enable register. After this order executed, the
operation enable is reset.
Order syntax：STATus:OPERation:ENABle?
Return parameter：<parameter of operation enable register>
Example：STAT:OPER:ENAB?
STATus:OPERation?
This order can read parameter from the operation condition register. After this order executed, the
operation condition is reset.
Order syntax：STATus:OPERation[:EVENt]?
Return parameter：<parameter of operation event register>
Example：STAT:OPER?
STATus:OPERation:INSTrument?
This order can read the parameter from the operation event sub register. After this order executed,
the operation event sub register is register.
Note: this order is only valid for current channel.
Order syntax：STATus:OPERation:INSTrument[:EVENt]?
Return parameter：<parameter of operation event sub register>
Example：STAT:OPER:INST?
STATus:OPERation:INSTrument:ENABle
This order can set parameter of operation event enable sub register. Setting parameter can
determine which bit value of operation event enable sub register is 1 and the bit will enable OPER of
status byte register is 1.
Note: this order is only valid for current channel.
Order syntax：STATus:OPERation:INSTrument:ENABle <value>
Parameter：0~255
Reset value：consult PSC order
Example：STAT:OPER:INST:ENAB 110
STATus:OPERation:INSTrument:ENABle?
This order can read the parameter of operation event enable sub register. After this order executed,
operation event enable sub register is reset.
Note: this order is only valid for current channel.
Order syntax：STATus:OPERation:INSTrument:ENABle？
Return value：<parameter of operation event enable register>
Example：STAT:OPER:INST:ENAB？
STATus:OPERation:INSTrument:CONDition?
This order can read parameter from operation condition sub register. After this order executed,
operation condition sub register is reset.

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Note: this order is only valid for current channel.
Order syntax：STATus:OPERation:INSTrument:CONDition?
Return parameter：<parameter of operation condition register>
Example：STAT:OPER:INST:COND?
INSTrument[SELect]
This order can be used to select the channel.
Order syntax：INSTrument[:SELect]
Parameter：FIRst|SECOnd|THIrd
Reset value：FIRst
Example：INST SECO
INSTrument[:SELect]?
This order can check which channel is selected.
Order syntax：INSTrument[:SELect]?
Return parameter：FIRst|SECOnd|THIrd
Example：INST？
INSTrument:NSELect
This order is similar to the order “INSTrument[SELect]”, the only difference is that this order uses
number to denote channel.
Order syntax：INSTrument:NSELect
Parameter：1~3
Reset value：1
Example：INST：NSEL？
OUTPut[:STATe]
This order can set the output state for current channel: ON/OFF
Order syntax：OUTPut[:STATe] <parameter>
Parameter：1(ON)|0(OFF)
Example：OUTP 1
OUTPut[:STATe]?
This order can check the output state for current channel: ON/OFF
Order syntax：OUTPut[:STATe]?
Return parameter：0|1
Example：OUTP?
OUTPut:TIMer:DATA
This order can set time of output-timer for current channel.
Order syntax：OUTPut:TIMer:DATA <parameter>
Parameter：0~999999S (if you set 0S,the output-timer will be disabled.)
Reset value：it is concerned about the parameter you set in the menu.
Example：OUTPut:TIMer:DATA 100

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OUTPut:TIMer:DATA?
This order can check the time of output-timer for current channel.
Order syntax：OUTPut:TIMer:DATA?
Return parameter：0~999999
Unit：S
Example：OUTP:TIM:DATA?
[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]
This order can set current value of power supply.
Order syntax：[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <parameter>
Parameter：MIN|MAX|MIN TO MAX
Unit：A mA uA
Reset value：it is concerned about the parameter you set in the menu.
*RST value：MAX
Example：CURR 2A
[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]?
This order can check current value of power supply.
Order syntax：[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]? <parameter>
Parameter：MIN | MAX |None
Return parameter：MIN TO MAX
Unit：A
Example：CURR?
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]
This order can set voltage value of power supply.
Order syntax：[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]
Parameter：MIN|MAX|MIN TO MAX
Parameter：V mV uV kV
Reset value：IN TO MAX|MIN|MAX
*RST value：MIN
Example：VOLT 10V
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]?
This order can check voltage value of power supply.
Order syntax：[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]? <parameter>
Parameter：MIN|MAX|None
Reset value：MIN TO MAX
Unit：V
Example：VOLT？
[SOURce:]VOLTage:PROTection[:LEVel][:IMMediate][:AMPLitude]
This order can set the max voltage for current channel.

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Order syntax：[SOURce:]VOLTage:PROTection[:LEVel][:IMMediate][:AMPLitude] <parameter>
Parameter：IN TO MAX|MIN|MAX
Unit：V mV kV uV
Reset value：it is concerned about the parameter you set in the menu.
*RST value：MAX
Example：VOLT:PROT 20V
MEASure[:SCALer]:CURRent[:DC]?
This order can get the output current of power supply.
Order syntax：MEASure[:SCALer]:CURRent[:DC]?
Return parameter：the actual output current
Unit：A
Example：MEAS：CURR?
MEAS[:SCALer][:VOLTage][:DC]?
This order can get the actual output voltage value.
Order syntax：MEAS[:SCALer][:VOLTage][:DC]?
Return parameter：the actual output voltage
Unit：V
Example：MEAS?
MEASure[:SCALer]:POWer[:DC]?
This order can get the actual output power value.
Order syntax：MEASure[:SCALer]:POWer[:DC]?
Return parameter：the actual output power
Unit：W
Example：MEAS:POW?
DISPlay[:WINDow][:STATe]
This order can turn on the window display or off.
Order syntax：DISPlay[:WINDow][:STATe] <parameter>
Parameter：0(OFF)|1(ON)
Reset value：1(ON)
*RST value：1(ON)
Example：DISP 1
DISPlay[:WINDow][:STATe]?
This order can check the state of the display window: ON/OFF.
Return parameter：1(ON)|0(OFF)
Example：DISP?
CALibration:SECure[:STATe]
This order can set protection mode enable or disable. The power supply will be calibrated only if the
calibration protection is disabled and other orders is disabled, either.

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Order syntax：CALibration:SECure[:STATe] <parameter 1>，<parameter 2>
Parameter 1：0(OFF)|1(ON)
Parameter 2：calibration password
Unit：none
Reset value：1|(ON)
*RST value：1|(ON)
Example：CAL：SEC 0,"6322"
CALibration:SECure[:STATe]?
This order can check protection mode: ON/OFF.
Quest syntax：CALibration:SECure[:STATe]?
Return parameter：0(OFF)|1(ON)
Example：CAL:SEC?
CALibration:VOLTage:LEVel
This order can set voltage calibration point.
Order syntax：CALibration:VOLTage:LEVel <parameter>
Parameter：P1|P2
Example：CAL:VOLT P1
CALibration:VOLT[:DATA]
This order can set voltage value of voltage calibration point.
Order syntax：CALibration:VOLT[:DATA] <parameter>
Parameter：the actual output voltage value
Unit：V mV uV kV
Example：CAL:VOLT 1V
CALibration:CURRent:LEVel
This order can set current calibration point.
Order syntax：CALibration:CURRent:LEVel <parameter>
Parameter：P1|P2
Example：CAL:CURR:LEV P1
CALibration:CURRent[:DATA]
This order can set voltage value of current calibration point.
Order syntax：CALibration:CURRent[:DATA] <parameter>
parameter：P1|P2
Example：CAL:CURR 0.3A
CALibration:SECure:CODE
This order can set the new calibration password.
Order syntax：CALibration:SECure:CODE <parameter>
Parameter：the password (1 through 4digits)
Example：CAL:SEC:CODE "1234"

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CALibration:STRing
This order can set the calibration information.
Order syntax：CALibration:STRing <parameter>
Parameter：the calibration information about time and so on.
Example：CAL:STR "2005-1-9 20:12"
CALibration:STRing?
This order can read the calibration information.
Order syntax：CALibration:STRing?
Return parameter：the calibration information saved in the EEPROM.
Example：CAL:STR?
CALibration:SAVe
This order can save calibration coefficient into EEPROM
Order syntax：CALibration:SAVe
Example：CAL:SAV
Note：the calibration parameter will take effect only after it is saved.
CALibration:INITital
This order can renew the calibration coefficient as default.
Order syntax：CALibration:INITital
Example：CAL:INIT
Note：if the calibration is failure, you can use this order to renew.