I-Tech IT-M7723 Operating instructions

Programmable AC Power
Source
IT-M7700 Programming Guide
Model: IT-M7721/IT-M7722/IT-M7721L/IT-M7722L/
IT-M7723/IT-M7723E
Version: V1.2

Notices
© Itech Electronic, Co., Ltd. 2021
No part of this manual may be
reproduced in any form or by any means
(including electronic storage and
retrieval or translation into a foreign
language) without prior permission and
written consent from Itech Electronic,
Co., Ltd. as governed by international
copyright laws.
Manual Part Number
IT-M7700-400000
Revision
1st Edition: Nov 30, 2021
Itech Electronic, Co., Ltd.
Trademarks
Pentium is U.S. registered trademarks
of Intel Corporation.
Microsoft, Visual Studio, Windows and
MS Windows are registered trademarks
of Microsoft Corporation in the United
States and/or other countries and
regions.
Warranty
The materials contained in this
document are provided “ as is “,
and is subject to change, without
prior notice, in future editions.
Further, to the maximum extent
permitted by applicable laws,
ITECH disclaims all warrants, either
express or implied, with regard to
this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a
particular purpose. ITECH shall not
be held liable for errors or for
incidental or indirect damages in
connection with the furnishing, use
or application of this document or of
any information contained herein.
Should ITECH and the user enter
into a separate written agreement
with warranty terms covering the
materials in this document that
conflict with these terms, the
warranty terms in the separate
agreement shall prevail.
Technology Licenses
The hardware and/or software
described herein are furnished under a
license and may be used or copied only
in accordance with the terms of such
license.
Restricted Rights Legend
Restricted permissions of the U.S.
government. Permissions for software
and technical data which are authorized
to the U.S. Government only include
those for custom provision to end users.
ITECH provides this customary
commercial license in software and
technical data pursuant to FAR 12.211
(Technical Data) and 12.212 (Computer
Software) and DFARS 252.227-7015
(Technical Data –Commercial Items)
and DFARS 227.7202-3 (Rights in
Commercial Computer Software or
Computer Software Documentation).
Safety Notices
A CAUTION sign denotes a
hazard. It calls attention to an
operating procedure or practice
that, if not correctly performed
or adhered to, could result in
damage to the product or loss of
important data. Do not proceed
beyond a CAUTION sign until
the indicated conditions are fully
understood and met.
A WARNING sign denotes a
hazard. It calls attention to an
operating procedure or practice
that, if not correctly performed
or adhered to, could result in
personal injury or death. Do not
proceed beyond a WARNING
sign until the indicated
conditions are fully understood
and met.
NOTE
A NOTE sign denotes important
hint. It calls attention to tips or
supplementary information that
is essential for users to refer to.

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. iii
Quality Certification and Assurance
We certify that IT-M7700 series power source meets all the published
specifications at time of shipment from the factory.
Warranty ITECH warrants that the product will be free from defects in material and
workmanship under normal use for a period of one (1) year from the date of
delivery (except those described in the Limitation of Warranty below).
For warranty service or repair, the product must be returned to a service center
designated by ITECH.
⚫The product returned to ITECH for warranty service must be shipped
PREPAID.And ITECH will pay for return of the product to customer.
⚫If the product is returned to ITECH for warranty service from overseas, all
the freights, duties and other taxes shall be on the account of customer.
Limitation of Warranty
This Warranty will be rendered invalid if the product is:
⚫Damaged resulting from customer-wired circuits or customer-supplied
parts or accessories;
⚫Modified or repaired by customer without authorization;
⚫Damaged resulting from customer-wired circuits or use in an environment
not designated by us;
⚫The product model or serial number is altered, deleted, removed or made
illegible by customer;
⚫Damaged as a result of accidents, including but not limited to lightning,
moisture, fire, improper use or negligence.
Safety Symbols
Direct current
ON (power)
Alternating current
OFF (power)
Both direct and alternating
current
Power-on state
Chassis (earth ground) symbol.
Power-off state
Earth (ground) terminal
Reference
terminal
Caution
Positive terminal
Warning (refer to this manual for
specific Warning or Caution
information)
Negative terminal
A chassis terminal
-
-

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. iv
Safety Precautions
The following safety precautions must be observed during all phases of
operation of this instrument. Failure to comply with these precautions or specific
warnings elsewhere in this manual will constitute a default under safety
standards of design, manufacture and intended use of the instrument. ITECH
assumes no liability for the customer’s failure to comply with these precautions.
⚫Do not use the instrument if it is damaged. Before operation, check
the casing to see whether it cracks. Do not operate the instrument in
the presence of inflammable gasses, vapors or dusts.
⚫The instrument is provided with a power cord during delivery and
should be connected to a socket with a protective earth terminal, a
junction box or a three-phase distribution box. Before operation, be
sure that the instrument is well grounded.
⚫Please always use the provided cable to connect the instrument.
⚫Check all marks on the instrument before connecting the instrument
to power supply.
⚫Ensure the voltage fluctuation of mains supply is less than 10% of the
working voltage range in order to reduce risks of fire and electric
shock.
⚫Do not install alternative parts on the instrument or perform any
unauthorized modification.
⚫Do not use the instrument if the detachable cover is removed or
loosen.
⚫To prevent the possibility of accidental injuries, be sure to use the
power adapter supplied by the manufacturer only.
⚫We do not accept responsibility for any direct or indirect financial
damage or loss of profit that might occur when using the instrument.
⚫This instrument is used for industrial purposes, do not apply this
product to IT power supply system.
⚫Never use the instrument with a life-support system or any other
equipment subject to safety requirements.
⚫SHOCK HAZARD Ground the Instrument. This product is provided
with a protective earth terminal. To minimize shock hazard, the
instrument must be connected to the AC mains through a grounded
power cable, with the ground wire firmly connected to an electrical
ground (safety ground) at the power outlet or distribution box. Any
interruption of the protective (grounding) conductor or disconnection
of the protective earth terminal will cause a potential shock hazard
that could result in injury or death.
⚫Before applying power, verify that all safety precautions are taken. All
connections must be made with the instrument turned off, and must
be performed by qualified personnel who are aware of the hazards
involved. Improper actions can cause fatal injury as well as
equipment damage.
⚫SHOCK HAZARD, LETHAL VOLTAGES This product can output the
dangerous voltage that can cause personal injury, and the operator
must always be protected from electric shock. Ensure that the output
electrodes are either insulated or covered using the safety covers

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. v
provided, so that no accidental contact with lethal voltages can
occur.
⚫Never touch cables or connections immediately after turning off the
instrument. Verify that there is no dangerous voltage on the
electrodes or sense terminals before touching them.
⚫Failure to use the instrument as directed by the manufacturer may
render its protective features void.
⚫Always clean the casing with a dry cloth. Do not clean the internals.
⚫Make sure the vent hole is always unblocked.
Environmental Conditions
The instrument is designed for indoor use and an area with low condensation.
The table below shows the general environmental requirements for the
instrument.
Environmental Conditions
Requirements
Operating temperature
0°C to 40°C
Operating humidity
20%-80% (non-condensation)
Storage temperature
-10°C to 70 °C
Altitude
Operating up to 2,000 meters
Installation category
II
Pollution degree
Pollution degree 2
Note
To make accurate measurements, allow the instrument to warm up for 30 min.
Regulatory Markings
The CE mark indicates that the product
complies with all the relevant European
legal directives. The specific year (if any)
affixed refers to the year when the design
was approved.
The instrument complies with the WEEE
Directive (2002/96/EC) marking
requirement. This affix product label
indicates that you must not discard the
electrical/electronic product in domestic
household waste.
This symbol indicates the time period
during which no hazardous or toxic
substances are expected to leak or
deteriorate during normal use. The
expected useful life of the product is 10
years. The product can be used safely
during the 10-year Environment Friendly
Use Period (EFUP). Upon expiration of
the EFUP, the product must be
immediately recycled.

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. vi
Waste Electrical and Electronic Equiment (WEEE)
Directive
2002/96/EC Waste Electrical and Electronic Equipment
(WEEE) Directive
This product complies with the WEEE Directive (2002/96/EC)
marking requirement. This affix product label indicates that you
must not discard the electrical/electronic product in domestic
household waste.
Product Category
With reference to the equipment classifications described in the
Annex 1 of the WEEE Directive, this instrument is classified as
a “ Monitoring and Control Instrument “.
To return this unwanted instrument, contact your nearest
ITECH office.

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. vii
Compliance Information
Complies with the essential requirements of the following applicable European
Directives, and carries the CE marking accordingly:
⚫Electromagnetic Compatibility (EMC) Directive 2014/30/EU
⚫Low-Voltage Directive (Safety) 2014/35/EU
Conforms with the following product standards:
EMC Standard
IEC 61326-1:2012/ EN 61326-1:2013 ¹²³
Reference Standards
CISPR 11:2009+A1:2010/ EN 55011:2009+A1:2010 (Group 1, Class A)
IEC 61000-4-2:2008/ EN 61000-4-2:2009
IEC 61000-4-3:2006+A1:2007+A2:2010/ EN 61000-4-3:2006+A1:2008+A2:2010
IEC 61000-4-4:2004+A1:2010/ EN 61000-4-4:2004+A1:2010
IEC 61000-4-5:2005/ EN 61000-4-5:2006
IEC 61000-4-6:2008/ EN 61000-4-6:2009
IEC 61000-4-11:2004/ EN 61000-4-11:2004
1. The product is intended for use in non-residential/non-domestic environments. Use of the
product in residential/domestic environments may cause electromagnetic interference.
2. Connection of the instrument to a test object may produce radiations beyond the specified
limit.
3. Use high-performance shielded interface cable to ensure conformity with the EMC standards
listed above.
Safety Standard
IEC 61010-1:2010/ EN 61010-1:2010

IT-M7700 Programming Guide
Copyright© Itech Electronic Co., Ltd. viii
Content
QUALITY CERTIFICATION AND ASSURANCE........................................................................................................................... III
WARRANTY................................................................................................................................................................... III
LIMITATION OF WARRANTY .............................................................................................................................................. III
SAFETY SYMBOLS ........................................................................................................................................................... III
SAFETY PRECAUTIONS .....................................................................................................................................................IV
ENVIRONMENTAL CONDITIONS ..........................................................................................................................................V
REGULATORY MARKINGS ..................................................................................................................................................V
WASTE ELECTRICAL AND ELECTRONIC EQUIMENT (WEEE) DIRECTIVE ......................................................................................VI
COMPLIANCE INFORMATION............................................................................................................................................ VII
CHAPTER 1 SCPI COMMAND INTRODUCTION ................................................................................................... 1
1.1 OVERVIEW ...............................................................................................................................................................1
1.2 COMMAND TYPE OF SCPI...........................................................................................................................................1
1.3 MESSAGE TYPEOF SCPI..............................................................................................................................................4
1.4 RESPONSE DATA TYPE ................................................................................................................................................6
1.5 COMMAND FORMAT ..................................................................................................................................................7
1.6 DATA TYPE ...............................................................................................................................................................9
1.7 COMMUNICATION INTERFACE ....................................................................................................................................11
CHAPTER 2 STATUS REGISTER.......................................................................................................................... 12
2.1 STATUS REGISTER DEFINITION ....................................................................................................................................12
2.2STATUS REGISTER STRUCTURE ....................................................................................................................................13
CHAPTER 3 STATUS SUBSYSTEM...................................................................................................................... 15
STATUS:QUESTIONABLE[:EVENT]? ................................................................................................................................15
STATUS:QUESTIONABLE:CONDITION?............................................................................................................................15
STATUS:QUESTIONABLE:ENABLE...................................................................................................................................16
STATUS:QUESTIONABLE:NTRANSITION ...........................................................................................................................16
STATUS:QUESTIONABLE:PTRANSITION............................................................................................................................17
STATUS:OPERATION[:EVENT]? .....................................................................................................................................18
STATUS:OPERATION:CONDITION?.................................................................................................................................18
STATUS:OPERATION:ENABLE........................................................................................................................................19
STATUS:OPERATION:NTRANSITION ................................................................................................................................19
STATUS:OPERATION:PTRANSITION.................................................................................................................................20
CHAPTER 4 IEEE-488 COMMON COMMANDS ................................................................................................. 21
*CLS..........................................................................................................................................................................21
*ESE..........................................................................................................................................................................21
*ESE?........................................................................................................................................................................22
*ESR?........................................................................................................................................................................22
*IDN?........................................................................................................................................................................23
*OPC.........................................................................................................................................................................23
*RST..........................................................................................................................................................................24
*SRE .........................................................................................................................................................................24
*STB?........................................................................................................................................................................25
*PSC .........................................................................................................................................................................25
*SAV .........................................................................................................................................................................26
*RCL .........................................................................................................................................................................26
CHAPTER 5 SYSTEM SUBSYSTEM..................................................................................................................... 27
SYSTEM:ERROR?.........................................................................................................................................................27
SYSTEM:CLEAR ...........................................................................................................................................................27
SYSTEM:REMOTE ........................................................................................................................................................28
SYSTEM:LOCAL ...........................................................................................................................................................28
SYSTEM:RWLOCK ........................................................................................................................................................29
SYSTEM:BEEPER .........................................................................................................................................................29
SYSTEM:BEEPER? .......................................................................................................................................................29
SYSTEM:POWNON ......................................................................................................................................................30
SYSTEM:POWNON? ....................................................................................................................................................30

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SYSTEM:COMMUNICATE:SELECT...................................................................................................................................30
SYSTEM:COMMUNICATE:SERIAL[:SELF]:BAUDRATE .......................................................................................................31
SYSTEM:COMMUNICATE:GPIB[:SELF]:ADDRESS ...........................................................................................................31
SYSTEM:COMMUNICATE:CAN[:SELF]:ADDRESS ............................................................................................................32
SYSTEM:COMMUNICATE:CAN[:SELF]:BAUDRATE ..........................................................................................................32
SYSTEM:COMMUNICATE:LAN:IPCONFIG ......................................................................................................................33
SYSTEM:COMMUNICATE:LAN:CURRENT:ADDRESS?.......................................................................................................33
SYSTEM:COMMUNICATE:LAN:CURRENT:SMASK? .........................................................................................................33
SYSTEM:COMMUNICATE:LAN:CURRENT:DGATEWAY? ....................................................................................................34
SYSTEM:COMMUNICATE:LAN:CURRENT:DNS1?............................................................................................................34
SYSTEM:COMMUNICATE:LAN:CURRENT:DNS2?............................................................................................................34
SYSTEM:COMMUNICATE:LAN:ADDRESS .......................................................................................................................35
SYSTEM:COMMUNICATE:LAN:SMASK..........................................................................................................................35
SYSTEM:COMMUNICATE:LAN:DGATEWAY .....................................................................................................................35
SYSTEM:COMMUNICATE:LAN:DNS1 ............................................................................................................................36
SYSTEM:COMMUNICATE:LAN:DNS2 ............................................................................................................................36
SYSTEM:COMMUNICATE:LAN:MACADDRESS..................................................................................................................37
SYSTEM:COMMUNICATE:LAN:PING[:STATE].................................................................................................................37
SYSTEM:COMMUNICATE:LAN:MDNS[:STATE]...............................................................................................................37
SYSTEM:COMMUNICATE:LAN:HTTP[:STATE] ................................................................................................................38
SYSTEM:COMMUNICATE:LAN:VXI11[:STATE] ...............................................................................................................38
SYSTEM:COMMUNICATE:LAN:SOCKET[:STATE] .............................................................................................................39
SYSTEM:COMMUNICATE:LAN:TELNET[:STATE] ..............................................................................................................39
SYSTEM:COMMUNICATION:LAN:SOCKET:PORT .............................................................................................................39
SYSTEM:COMMUNICATE:LAN:CONFIG:HOSTNAME .......................................................................................................40
SYSTEM:COMMUNICATE:LAN:CONFIG:DESCRIPTIONNAME .............................................................................................40
SYSTEM:COMMUNICATE:LAN:INFORMATION:HOSTNAME? .............................................................................................41
SYSTEM:COMMUNICATE:LAN:INFORMATION:DESCRIPTION? ...........................................................................................41
SYSTEM:COMMUNICATE:LAN:IPMODE? ......................................................................................................................41
SYSTEM:COMMUNICATE:LAN:RESET ...........................................................................................................................42
CHAPTER 6 SOURCE SUBSYSTEM .................................................................................................................... 43
[SOURCE:]RELAY:MODE.............................................................................................................................................43
[SOURCE:]NORMAL:VOLTAGE:AC[:LEVEL][:IMMEDIATE][:AMPLITUDE]...........................................................................43
[SOURCE:]NORMAL:VOLTAGE:DC[:LEVEL][:IMMEDIATE] ...............................................................................................44
[SOURCE:]NORMAL:FREQUENCY[:LEVEL][:IMMEDIATE].................................................................................................44
[SOURCE:]NORMAL:VOLTAGE:AC:MAX[:LEVEL]...........................................................................................................44
[SOURCE:]NORMAL:VOLTAGE:AC:MIN[:LEVEL]............................................................................................................45
[SOURCE:]NORMAL:VOLTAGE:DC:MAX[:LEVEL]...........................................................................................................45
[SOURCE:]NORMAL:VOLTAGE:DC:MIN[:LEVEL] ...........................................................................................................46
[SOURCE:]NORMAL:FREQUENCY:MAX[:LEVEL] ............................................................................................................46
[SOURCE:]NORMAL:FREQUENCY:MIN[:LEVEL] .............................................................................................................46
[SOURCE:]NORMAL:PHASE:START[:LEVEL][:IMMEDIATE] .............................................................................................47
[SOURCE:]NORMAL:PHASE:STOP[:LEVEL][:IMMEDIATE] ..............................................................................................47
[SOURCE:]NORMAL:MODE ........................................................................................................................................48
[SOURCE:]OUTPUT[:STATE] ........................................................................................................................................48
[SOURCE:]NORMAL:VRISETIME .................................................................................................................................48
CHAPTER 7 SOURCE SUBSYSTEM(IT-M7700) ................................................................................................... 50
[SOURCE:]NORMAL:CURRENT:RANGE........................................................................................................................50
[SOURCE:]NORMAL:VOLTAGE:RANGE.........................................................................................................................50
[SOURCE:]NORMAL:WAVE.........................................................................................................................................51
[SOURCE:]NORMAL:WAVE:THD .................................................................................................................................51
[SOURCE:]NORMAL:WAVE:USER ...............................................................................................................................51
[SOURCE:]NORMAL:WAVE:CSINE...............................................................................................................................52
[SOURCE:]NORMAL:DIMMER[:PHASE] .......................................................................................................................52
[SOURCE:]NORMAL:DIMMER:MODE..........................................................................................................................53
[SOURCE:]NORMAL:SURGETRAP:MODE....................................................................................................................53
[SOURCE:]NORMAL:SURGETRAP:PERIOD..................................................................................................................53
[SOURCE:]NORMAL:SURGETRAP:WIDTH...................................................................................................................54

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[SOURCE:]NORMAL:SURGETRAP:PERCENT ...............................................................................................................54
[SOURCE:]NORMAL:OFFTIMER:MODE.......................................................................................................................55
[SOURCE:]NORMAL:OFFTIMER..................................................................................................................................55
CHAPTER 8 PROTECT SUBSYSTEM ................................................................................................................... 56
PROTECT:RMS:VOLTAGE .............................................................................................................................................56
PROTECT:PEAK:VOLTAGE.............................................................................................................................................56
PROTECT:RMS:UNVOLTAGE ........................................................................................................................................56
PROTECT:RMS:CURRENT.............................................................................................................................................57
PROTECT:PEAK:CURRENT............................................................................................................................................57
PROTECT:RMS:CURRENT:TIME ...................................................................................................................................58
PROTECT:RMS:CURRENT:MAX[:LEVEL]........................................................................................................................58
PROTECT:RMS:CURRENT:MIN[:LEVEL] ........................................................................................................................58
PROTECT:CLEAR..........................................................................................................................................................59
PROTECT:SENSE:CHECK ..............................................................................................................................................59
PROTECT:POWER........................................................................................................................................................60
PROTECT:MAX:CURRENT:LIMIT ...................................................................................................................................60
CHAPTER 9 LIST SUBSYSTEM(IT-M7700).......................................................................................................... 61
LIST:TRIGGER:MODE..................................................................................................................................................61
LIST:STATE.................................................................................................................................................................61
LIST:RECORD:NUM ....................................................................................................................................................62
LIST:REPEAT ...............................................................................................................................................................62
LIST:ENDSTATE ...........................................................................................................................................................62
LIST:RUN:RECORD?....................................................................................................................................................63
LIST:RUN:STATE? .......................................................................................................................................................63
LIST:CONFIGURE .........................................................................................................................................................63
LIST:RECORDER ..........................................................................................................................................................64
LIST:RECORDER?.........................................................................................................................................................66
LIST:SAVE ..................................................................................................................................................................66
LIST:RECALL ...............................................................................................................................................................67
LIST:RUN ...................................................................................................................................................................67
LIST:STOP..................................................................................................................................................................67
CHAPTER 10 SELFDEFINE SUBSYSTEM(IT-M7700).......................................................................................... 69
SELFDEFINE:NUMBER ..................................................................................................................................................69
SELFDEFINE:NAME .....................................................................................................................................................69
SELFDEFINE:RECALL:NAME? .......................................................................................................................................70
SELFDEFINE:SAVE........................................................................................................................................................70
SELFDEFINE:DATA .......................................................................................................................................................70
SELFDEFINE:RECALL.....................................................................................................................................................71
SELFDEFINE:EDIT ........................................................................................................................................................71
CHAPTER 11 MULTI-CHANNEL COMMAND(IT-M7723) .................................................................................. 72
CHANNEL ...................................................................................................................................................................72
CHANNEL:LINK...........................................................................................................................................................72
CHANNEL:ERROR? ......................................................................................................................................................73
MULTI-CHANNEL PROGRAM FLOW ....................................................................................................................................73
CHAPTER 12 FETCH & MEASURE SUBSYSTEM ............................................................................................... 79
FETCH[:SCALAR]:VOLTAGE:AC? ...................................................................................................................................79
FETCH[:SCALAR]:VOLTAGE:DC? ...................................................................................................................................79
FETCH[:SCALAR]:CURRENT:AC? ..................................................................................................................................79
FETCH[:SCALAR]:CURRENT:DC? ..................................................................................................................................80
FETCH[:SCALAR]:POWER[:REAL]?...............................................................................................................................80
FETCH[:SCALAR]:POWER:APPARENT? ..........................................................................................................................80
FETCH[:SCALAR]:POWER:PFACTOR?............................................................................................................................81
FETCH[:SCALAR]:FREQUENCY? ....................................................................................................................................81
FETCH[:SCALAR]:CURRENT:PEAK? ..............................................................................................................................81
FETCH[:SCALAR]:THD? ...............................................................................................................................................82