IEC TS 63290:2024
(Main)Supplementary requirements for intelligent assemblies
Supplementary requirements for intelligent assemblies
IEC TS 63290:2024 provides additional requirements for assemblies in accordance with the product standards of the IEC 61439 series (Part 2 onwards) that incorporate digital functions and communication, in addition to the conventional electromechanical features of assemblies to reflect what is defined within this document as intelligence. It specifies the definitions, service conditions, constructional requirements, technical characteristics and verification requirements that can be carried out in addition to the IEC 61439 series for intelligent low-voltage switchgear and controlgear assemblies.
General Information
Standards Content (Sample)
IEC TS 63290 ®
Edition 1.0 2024-11
TECHNICAL
SPECIFICATION
Supplementary requirements for intelligent assemblies
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IEC TS 63290 ®
Edition 1.0 2024-11
TECHNICAL
SPECIFICATION
Supplementary requirements for intelligent assemblies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.20 ISBN 978-2-8327-0037-2
– 2 – IEC TS 63290:2024 © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Symbols and abbreviated terms . 12
5 Interface characteristics. 12
6 Information . 12
6.1 Assembly designation marking . 12
7 Service conditions . 13
8 Intelligent assembly profile . 13
8.1 General . 13
8.2 Intelligent assembly for measurement . 14
8.3 Intelligent assembly for control. 14
8.4 Intelligent assembly for management . 14
9 Constructional requirements . 16
9.1 Constructional requirements of intelligent assembly . 16
9.1.1 General rules . 16
9.1.2 Cable compartment . 16
9.2 Functional requirements . 16
9.2.1 General . 16
9.2.2 Intelligent assembly for measurement . 16
9.2.3 Intelligent assembly for control . 17
9.2.4 Intelligent assembly for management . 17
9.2.5 Communication modes . 18
9.3 System requirements . 18
9.3.1 General rules . 18
9.3.2 Selection of components . 19
9.3.3 Installation of devices with communication interface . 20
9.3.4 System configuration . 20
9.3.5 System software . 20
9.3.6 Control power supply for intelligent devices . 21
9.3.7 Interfaces . 21
9.3.8 Reliability and response time for control functions . 21
9.3.9 Network and system security . 21
9.4 Assembly and wiring . 22
9.4.1 General . 22
9.4.2 Arrangement of components . 22
9.4.3 Wiring rules . 22
10 Design considerations . 23
10.1 General . 23
10.2 Incorporation of electronic devices, thermal aspects . 23
10.3 Incorporation of electronic devices, EMC aspects . 23
10.3.1 General . 23
10.3.2 Device location considering EMC constraints . 24
10.3.3 Recommended dimension of the functional unit compartment . 24
10.4 Integration of radio communication devices in an intelligent assembly . 23
11 Design verification . 25
12 Routine verification . 25
12.1 Construction . 25
12.1.1 Assembly structure . 25
12.1.2 System configuration . 25
12.2 Wiring, operational performance and function . 25
Annex A (informative) System configuration . 28
Annex B (informative) Installation and wiring rules . 29
B.1 General rules for cabling . 29
B.2 To segregate sensitive cables from power cables . 29
B.3 Cables length . 31
B.3.1 Power cables . 31
B.3.2 Communication cables . 32
B.3.3 Earth continuity . 32
B.4 Rules for communication network . 33
B.4.1 Ethernet network . 33
B.4.2 Ethernet connector . 33
B.5 Auxiliary power supply wiring installation . 33
B.6 Installing devices . 34
B.6.1 General . 34
B.6.2 Installation of power meter and accessories – Display location . 35
B.7 Installation of trunking . 36
Annex C (informative) Measures to reduce the effects of electromagnetic influences . 37
C.1 General . 37
C.2 Mitigation of electromagnetic interference (EMI) . 37
C.2.1 General . 37
C.2.2 Measures to reduce EMI . 37
C.2.3 Separation and segregation of cables . 38
Annex D (informative) Communication network media and protocols . 39
D.1 General . 39
D.2 Multi-vendor interoperable communication system . 39
D.2.1 General . 39
D.2.2 Ethernet and IP standard solution . 39
D.2.3 OPC UA – Open Platform Communication Unified Architecture . 40
D.2.4 Ethernet, the targeted physical layer . 40
D.3 Alternatives to the Ethernet solutions . 41
Annex E (informative) Documentation of software and firmware revisions . 42
Annex F (informative) Documentation of access control . 44
Annex G (informative) Examples of a connected building with intelligent assemblies . 45
Annex H (informative) Examples of temperature mapping . 47
Annex I (informative) Examples of EMC aspects . 49
Annex J (informative) List of notes concerning certain countries . 52
Bibliography . 53
Figure 1 – Example of a connected environment . 7
Figure 2 – Intelligent assembly profile . 15
– 4 – IEC TS 63290:2024 © IEC 2024
Figure 3 – Locations in respect of EMC for a large assembly . 24
Figure A.1 – Example of system configuration. 28
Figure B.1 – Rules for arrangement of communication cable and power cable . 30
Figure B.2 – Example of shielding . 31
Figure B.3 – Typical installation with and without appropriate cables lengths . 32
Figure B.4 – Examples of communication cables . 32
Figure B.5 – Earthing clip. 32
Figure B.6 – Examples of clamp diameter . 33
Figure B.7 – Guidance for power supply wiring installation . 34
Figure B.8 – Example of device installation . 35
Figure D.1 – Examples of Ethernet cables . 40
Figure G.1 – Example of a connected building with an intelligent assembly . 45
Figure G.2 – Example of a connected building with multiple intelligent assemblies . 46
Figure H.1 – Assembly with natural cooling . 47
Figure H.2 – Assembly with active cooling in the speed drive compartments J and K . 48
Figure I.1 – Example for a rated current <1 000 A configuration . 50
Figure I.2 – Example for a rated current >1 000 A configuration . 50
Figure I.3 – Assembly configuration example with preferred and non-preferred areas . 51
Table 1 – Supplementary routine verification list . 27
Table C.1 – Cable separation distance . 38
Table H.1 – Internal air temperature . 47
Table I.1 – The location of electronic components in respect of EMC . 49
Table I.2 – EMC field strength . 49
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SUPPLEMENTARY REQUIREMENTS FOR INTELLIGENT ASSEMBLIES
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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shall not be held responsible for identifying any or all such patent rights.
IEC TS 63290 has been prepared by subcommittee 121B: Low-voltage switchgear and
controlgear assemblies, of IEC technical committee 121: Switchgear and controlgear and their
assemblies for low voltage. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
121B/202/DTS 121B/203/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.
– 6 – IEC TS 63290:2024 © IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document references IEC 61439-1. The provisions of the general rules dealt with in
IEC 61439-1 are only applicable to this document insofar as they are specifically cited.
The reader's attention is drawn to the fact that Annex J lists all of the "in-some-country" clauses
on differing practices of a less permanent nature relating to the subject of this document.A list
of all parts of the IEC 61439 series, under the general title Low-voltage switchgear and
controlgear assemblies, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
INTRODUCTION
The drive for sustainability is prompting significant changes to the role of low-voltage switchgear
and controlgear assemblies. Rather than being a manually and locally operated type of
equipment, increasingly they are at the centre of an automated energy management system
requiring intelligence and communications within/out of the assemblies. These functions are in
addition to the conventional electromechanical features of assemblies and require
supplementary considerations. Low-voltage assemblies are evolving from electromechanical
constructions to assemblies including a multitude of digital functions. The low-voltage
assemblies can provide the intelligence to manage different functions, for example, remote
monitoring, remote control, local intelligence, or interaction with other systems, to bring a well-
adapted solution to the customer.
This document gives the requirements for intelligent assemblies to enable it to form an integral
part of a connected network (see Figure 1).
Figure 1 – Example of a connected environment
– 8 – IEC TS 63290:2024 © IEC 2024
SUPPLEMENTARY REQUIREMENTS FOR INTELLIGENT ASSEMBLIES
1 Scope
This document provides additional requirements for assemblies in accordance with the product
standards of the IEC 61439 series (Part 2 onwards) that incorporate digital functions and
communication, in addition to the conventional electromechanical features of assemblies to
reflect what is defined within this document as intelligence. It specifies the definitions, service
conditions, constructional requirements, technical characteristics and verification requirements
that can be carried out in addition to the IEC 61439 series for intelligent low-voltage switchgear
and controlgear assemblies.
NOTE Throughout this document, the term assembly is used for low-voltage switchgear and controlgear assembly.
Intelligence within an assembly takes many forms and ranges from the measurement of
electrical values with analysis to full automation and monitoring for process, energy
management, condition monitoring, etc.
This document is applicable to intelligent assemblies for which the rated voltage does not
exceed 1 000 V AC or 1 500 V DC; and designed for a nominal frequency of the incoming
supply or supplies not exceeding 1 000 Hz.
This document does not apply to electrical equipment of machines (which is covered by the
IEC 60204 series), and also does not apply to electrical equipment for measurement, control,
and laboratory use (which is covered by the IEC 61010-2 series).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60255 (all parts), Measuring relays and protection equipment
IEC 60364-8-1:2019, Low-voltage electrical installations – Part 8-1: Functional aspects –
Energy efficiency
IEC 60664-1, Insulation coordination for equipment within low-voltage supply systems – Part 1:
Principles, requirements and tests
IEC 60947 (all parts), Low-voltage switchgear and controlgear
IEC 61010 (all parts), Safety requirements for electrical equipment for measurement, control
and laboratory use
IEC 61140, Protection against electric shock – Common aspects for installation and equipment
IEC 61158 (all parts), Industrial communication networks – Fieldbus specifications
IEC 61439 (all parts), Low-voltage switchgear and controlgear assemblies
IEC 61439-1:2020, Low-voltage switchgear and controlgear assemblies – Part 1: General rules
IEC 61557-12, Electrical safety in low voltage distribution systems up to 1 000 V AC and
1 500 V DC – Equipment for testing, measuring or monitoring of protective measures – Part 12:
Power metering and monitoring devices (PMD)
IEC 61643-12, Low-voltage surge protective devices – Part 12: Surge protective devices
connected to low-voltage power systems – Selection and application principles
IEC 61784 (all parts), Industrial communication networks – Profiles
IEC 62052 (all parts), Electricity metering equipment – General requirements, tests and test
conditions
IEC 62053 (all parts), Electricity metering equipment – Particular requirements
IEC 62591, Industrial networks – Wireless communication network and communication profiles
– WirelessHART™
IEC 62601, Industrial networks – Wireless communication network and communication profiles
– WIA-PA
IEC 62734, Industrial networks – Wireless communication network and communication profiles
– ISA 100.11a
IEC 62948, Industrial networks – Wireless communication network and communication profiles
– WIA-FA
IEC TS 63208:2020, Low-voltage switchgear and controlgear – Security aspects
IEEE 802.3, Ethernet LAN
IEEE 802.11, Wireless LAN
IEEE 802.15, Personal Area Network
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61439-1 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
– 10 – IEC TS 63290:2024 © IEC 2024
3.1
intelligent assembly
assembly which includes functions for either operation or maintenance, or both, for the full life
cycle of the system by using sensor technology, digital technology, network technology,
communication technology or artificial intelligence technology
Note 1 to entry: Intelligent assemblies realise some or all their functions of either local or remote measurement, or
both, provision of information, control, adjustment. The following list gives some examples to be considered:
– Supply and load management for system optimisation.
– Remote load management.
– Either local or remote status indication, or both, including, as appropriate, alarms to indicate overheating,
overcurrent, earth leakage, etc.
– Intelligent analysis and storage of faults and other statistics.
– Stable communication and secure data through open communication protocols.
– Either remotely or locally managed protection functions, or both.
– Video monitoring of parts or all of the assemblies running state.
– Monitoring of the intelligent assembly's installation conditions, e.g. ambient temperature, humidity.
– Condition monitoring to enable condition based and preventive maintenance.
– Details of components included in the intelligent assembly, e.g. brand, either type or reference, or both,
characteristics, manufacturing date, serial number, firmware revision and date.
3.2
gateway
functional unit that connects two networks with different network architectures and protocols
Note 1 to entry: The networks may be local area networks, wide area networks or other types of networks.
Note 2 to entry: Examples of gateways are a LAN gateway, a mail gateway.
[SOURCE: IEC 60050-732:2010, 732-01-17, modified – Deleted the word "computer" from the
definition and Note 1 to entry.]
3.3
fieldbus
communication system based on serial data transfer and used in industrial automation or
process control applications
[SOURCE: IEC 61784-3:2021, 3.1.20]
3.4
industrial Ethernet
area and cell networks based on IEEE 802.3 (Ethernet) prepared for the use of industrial
environment
3.5
remote monitoring
continuing procedure for the collection and assessment of pertinent information, including
measurements, at a point distant from the controlled switching device, assembly or installation
3.6
remote control
control of an operation at a point distant from the controlled switching device, assembly or
installation
[SOURCE: IEC 60050-441:1984, 441-16-07, modified – added: assembly or installation.]
3.7
remote adjustment
adjust parameters remotely by communication
3.8
intelligent device
device where some or all of its operating parameters are either measured or controlled, or both,
via digital means
3.9
interface
shared boundary between two functional units, defined by functional characteristics, signal
characteristics, or other characteristics as appropriate
Note 1 to entry: The concept of interface includes the specification of the connection of two devices having different
functions.
Note 2 to entry: The IEC 61439 series uses the term functional unit in a different meaning.
[SOURCE: IEC 60050-171:2019, 171-01-24]
3.10
electrical energy management system
EEMS
system operating and controlling energy resources and loads of the installations
[SOURCE: IEC 60050-826:2022, 826-19-04]
3.11
smart grid
intelligent grid
electric power system that utilizes information exchange and control technologies, distributed
computing and associated sensors and actuators, for purposes such as:
– to integrate the behaviour and actions of the network users and other stakeholders,
– to efficiently deliver sustainable, economic and secure electricity supplies
[SOURCE: IEC 60050-617:2009, 617-04-13]
3.12
condition monitoring
obtaining information about physical state or operational parameters
Note 1 to entry: Condition monitoring is used to determine when preventive maintenance may be required.
Note 2 to entry: Condition monitoring may be conducted automatically during operation or at planned intervals.
Note 3 to entry: Condition monitoring methods include: vibration analysis, tribology and thermography.
[SOURCE: IEC 60050-192:2015, 192-06-28]
– 12 – IEC TS 63290:2024 © IEC 2024
3.13
power metering and monitoring device
PMD
combination in one or more devices of several functional modules dedicated to metering and
monitoring electrical parameters in energy distribution systems or electrical installations, used
for applications such as energy efficiency, power monitoring and network performance
Note 1 to entry: Under the generic term "monitoring" are also included functions of recording, alarm management,
etc.
Note 2 to entry: These devices may include demand side quality functions for monitoring inside
commercial/industrial installations.
[SOURCE: IEC 61557-12:2018, 3.1.1]
4 Symbols and abbreviated terms
Clause 4 of the appropriate part of the IEC 61439 series (Part 1 onwards) is applicable, in
addition to the following.
Addition:
• EEMS electrical energy management system
• PMD power metering and monitoring device
5 Interface characteristics
Clause 5 of the appropriate part of the IEC 61439 series (Part 1 onwards) is applicable, in
addition to the following.
Addition:
The interface characteristics of intelligent assembly may include the following, for more details
see Clause 9:
• Communication protocols,
• Media type,
• Communication characteristics (bandwidth, etc.).
6 Information
Clause 6 of the appropriate part of the IEC 61439 series (Part 1 onwards) is applicable, in
addition to the following.
6.1 Assembly designation marking
In addition to the marking required by the appropriate part of the IEC 61439 series, the following
may be provided:
aa) IEC TS 63290.
6.2.2 Instructions for handling, installation, operation and maintenance
Addition:
If the assembly manufacturer has done relevant changes in software or communication
parameters, where applicable, they shall provide all relevant information. The following
information including version and cybersecurity related information shall be taken into account:
– type of bus interface;
– measurement functions;
– control function;
– software release;
– communication protocols.
If the assembly manufacturer has not done relevant changes in software or communication
parameters, they shall provide available information by the device manufacturer(s) for the
intelligent components used in the assembly.
NOTE 1 An example for documentation is included in the informative Annex E of this document.
Appropriate access control for either read or write, or both, shall be in place.
NOTE 2 An example for documentation is included in the informative Annex F of this document.
Caution information shall be added in the documentation to inform the user of the assembly to
assess the appropriate security level and take appropriate actions in according to IEC TS 63208.
NOTE 3 The following text gives an example to the caution information:
The user of the assembly shall make a risk assessment in respect of the appropriate security level for data used in
this assembly. Then a protection scheme appropriate to the risk of the data shall be implemented by the user of the
assembly. IEC TS 63208 gives guidance to the risk assessment.
The documentation shall include warnings to alert the user in respect of critical modifications
like updates of software or firmware, change of parameter settings especially in case of
protection devices.
NOTE 4 The following text gives an example to the warning.
Implement updates of the software per instructions of the device manufacture. Ensure a procedure to verify for
available updates, especially security patches, is put in place by the user.
Change of parameter of protection devices can have an impact to the safety of users and the system itself or allow
other to make unauthorized modifications.
7 Service conditions
Clause 7 of the appropriate part of the IEC 61439 series (Part 1 onwards) is applicable.
8 Intelligent assembly profile
8.1 General
Intelligent assemblies are generally designed to achieve one of three profiles, see Figure 2:
– measurement, see Figure 2a;
– control, see Figure 2b;
– management, see Figure 2c.
– 14 – IEC TS 63290:2024 © IEC 2024
Examples of connected buildings with intelligent assemblies are shown in Annex G.
8.2 Intelligent assembly for measurement
An intelligent assembly for measurement is an assembly incorporating low-voltage switchgear
and controlgear devices and intelligent devices for the purpose to provide electrical
measurements with or without communication. The requirements of these intelligent assembly
for measurement are described in 9.2.2.
8.3 Intelligent assembly for control
An intelligent assembly for control is an assembly incorporating intelligent devices and electrical
control systems for predefined operations based on measurements performed either locally or
remotely. The requirements of these intelligent assembly for control are described in 9.2.3.
8.4 Intelligent assembly for management
An intelligent assembly for management is an assembly, or is a part of the system, incorporating
the necessary interfaces and computing resources either to manage locally or to communicate
with a remote intelligent system. The requirements of these intelligent assembly for
management are described in 9.2.4.
a) Intelligent assembly for measurement
b) Intelligent assembly for control
c) Intelligent assembly for management
Figure 2 – Intelligent assembly profile
– 16 – IEC TS 63290:2024 © IEC 2024
9 Constructional requirements
Clause 8 of the appropriate part of the IEC 61439 series (Part 1 onwards) is applicable, in
addition to the following.
Addition:
9.1 Constructional requirements of intelligent assembly
9.1.1 General rules
Intelligent assemblies shall satisfy the structural and electrical performance requirements as
defined in the applicable part of the IEC 61439 series of standards taking into account the
multiple interactions that can be generated between electrical power, distribution and digital
equipment. Automation system installation and adjustment, dependability of operation shall be
considered. The space between parts of the fieldbus communication and parts of the main
circuit(s) shall also be considered.
9.1.2 Cable compartment
An intelligent assembly should have an auxiliary cable compartment or an independent space
in the cable compartment to lay all types of control cables and if necessary, a tunnel for
communication cables, in order to meet the EMC requirements specified in 9.4 of
IEC 61439-1:2020. If applicable, an auxiliary cable compartment should have space for
installing communication connectors, connector terminals, power modules, etc. Communication
cables, should be laid separate from other control signal cables if required i.e. the use of
screened wire type. For more information about measures to reduce the effects of
electromagnetic influences, see Annex C.
A specific compartment should be considered for control devices such as, PLCs, switch mode
power supplies, etc, considering dedicated requirements stated by the standard product or
manufacturer's instructions, where applicable.
9.2 Functional requirements
9.2.1 General
To be declared as an intelligent assembly, it shall include the different functions given in 9.2.2
to 9.2.4 according to the selected profile.
The overall accuracy of active energy measurement shall comply with Table 2 of
IEC 60364-8-1:2019.
Any local protection functions (e.g. short circuit protection, overload protection, residual current
protection) shall be independent of, and take precedence over, any remote control functions.
9.2.2 Intelligent assembly for measurement
An intelligent assembly for measurement shall include the following minimum parameters:
• Measure the energy on a sufficient number of circuits to enable the energy used to be known
and analysed
– Ea – active energy
– Er – reactive energy
• Measure electrical characteristics
– Either U – line-to-line voltage or V – line to neutral voltage, or both
– I – current
– P – active power
– Q – reactive power
– S – apparent power
– f – frequency
– PF – power factor.
The intelligent assembly shall provide and can be able to record the electrical values above.
Additional parameters can be added as required:
• Measurement of information from devices (operating time, number operation, temperature,
humidity, etc.).
9.2.3 Intelligent assembly for control
An intelligent assembly for control shall include one or more of the following functions:
• Predefined automatism to ensure power availability (for example, load shedding, back-up,
transfer switch, etc.);
• Protection setting adjustment according to sources electrical characteristics;
• Operation control.
The intelligent assembly shall provide, and can be able to record, control activities and events,
e.g. fault.
Examples for possible control functions to be incorporated:
a) Main incoming circuit: switch on/switch off of the device;
b) Outgoing circuit: switch on/switch off of the device;
c) Motor control circuit: start/stop operation of motor;
d) Fault management;
e) Load management.
9.2.4 Intelligent assembly for management
An intelligent assembly for management shall include one or more of the following functions:
• Management of the interaction with the supply network
– Grid connection;
– Island mode;
– Stand-alone mode.
• Energy consumption optimization
• Multiple sources management
• Cost optimisation based on tariff
• Demand response management system. For example, this could be a Distributed Energy
Resources Management System (DERMS).
– 18 – IEC TS 63290:2024 © IEC 2024
Provide relevant information on the system, for example:
a) Communication status (Active/Inactive), device status (On/Off/Trip), alarm/fault status;
b) Operation times/running time of motor circuit, temperature, humidity and other data;
c) The requesting, recording and reporting of the information required by the user;
d) Power energy management, power quality and load analysis.
Intelligent assemblies may incorporate remote adjustment functions. Only an authorized
person(s) are allowed to adjust settings according to the calculation results of the supply
network, characteristic curves and control rights remotely through a host computer or by
dedicated applications. For example, set parameters of a circuit-breaker. Such changes should
be stored in a traceable way.
Further, the remote operation shall consider dedicated requirements already stated by the
product standard or manufacturer's instructions, where applicable.
WARNING – Remote adjustment is only possible if settings are verified by authorized person(s).
9.2.5 Communication modes
9.2.5.1 General
The intelligent assembly can operate in one or more of three communication modes, L – local,
R – remote location and C – cloud. Each of these communication modes implies different
requirements in terms of security protection see IEC TS 63208.
9.2.5.2 L – local
An intelligent assembly L shall display locally the electrical measurements and status of actions
operated by the control or management system of the assembly.
9.2.5.3 R – remote location
An intelligent assembly R shall be able to remotely communicate the electrical measurements
and status of actions operated by the control or management system with the other parts of a
private network located in one or several sites, designed as an intranet network.
9.2.5.4 C – cloud
An intelligent assembly C shall be able to communicate the electrical measurements
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