ISO/IEC 14543-4-302:2023

Information technology - Home electronic system (HES) architecture - Part 4-302: Application protocols for electrical storage systems and controllers

ISO/IEC 14543-4-302:2023 specifies an application-layer protocol important for ensuring interoperability among the products of various manufacturers regarding communications between electrical storage systems and controllers. It uses the network enhanced communications device (NECD) protocol specified in ISO/IEC 14543-4-3. This protocol is based on UDP using IPv4 or IPv6 (TCP is optional).

General Information

• Status: Published
• Publication Date: 19-Apr-2023
• ICS: 35.240.67 - IT applications in building and construction industry
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: WG 1 - ISO/IEC JTC 1/SC 25/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 12-May-2023
• Completion Date: 20-Apr-2023

Standards Content (Sample)

ISO/IEC 14543-4-302
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
colour
inside
Information technology – Home electronic system (HES) architecture –
Part 4-302: Application protocols for electrical storage systems and controllers

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ISO/IEC 14543-4-302
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
colour
inside
Information technology – Home electronic system (HES) architecture –

Part 4-302: Application protocols for electrical storage systems and controllers

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.240.67 ISBN 978-2-8322-6793-6

– 2 – ISO/IEC 14543-4-302:2023
© ISO/IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 9
4 Conformance . 10
5 Configuration . 10
5.1 General . 10
5.2 Configuration and components . 10
5.3 Connection configuration . 11
6 Application layer . 12
6.1 General . 12
6.2 NECD objects . 12
6.3 NECD services. 12
6.4 Object-specific NECD properties . 12
6.5 Application operation . 14
6.5.1 General . 14
6.5.2 Continuous requests . 14
6.5.3 Response wait time value for controllers . 15
6.5.4 Resending a frame . 15
6.5.5 Processing object property counter . 15
6.5.6 Property values of write requests . 15
7 Normal operation . 16
7.1 General . 16
7.2 Start-up operation . 18
7.2.1 General . 18
7.2.2 Start-up processing of NECD nodes . 18
7.2.3 Search processing . 18
7.2.4 Obtaining NECD attribute information . 18
7.2.5 Obtaining electrical storage system attribute information . 19
7.3 Occasional operation . 22
7.3.1 General . 22
7.3.2 Obtaining electrical storage system status . 22
7.3.3 Setting and updating "AC charge amount target value" property (or "AC
discharge amount target value" property). 25
7.3.4 Setting and updating "Charging electric power setting" property (or
"Discharging electric power setting" property) (optional) . 28
7.3.5 Setting "Charging method" property (or "Discharging method" property)
(optional) . 31
7.3.6 Setting "Operation mode setting" property . 34
7.3.7 Terminating charging (or discharging) operation of the storage battery
based on "AC charging amount target value" property (or "AC
discharging amount target value" property) . 37
7.4 Fault status notification . 41
8 Remote control . 42

© ISO/IEC 2023
8.1 General . 42
8.2 Setting and updating "AC charge amount target value" property (or "AC
discharge amount target value" property) on remote control . 42
8.3 Setting "Operation mode setting" property when remotely controlling . 44
9 Considerations on controllers . 46
9.1 General . 46
9.2 Restrictions by electrical storage system implementations . 47
Annex A (informative) Terms and NECD protocol frame format on ISO/IEC 14543-4-3
and IEC 62394 . 48
A.1 Terms correspondence between ISO/IEC 14543-4-3 and IEC 62394 . 48
A.2 NECD protocol frame format . 48
Annex B (informative) Relationship between ISO/IEC 14543-4 series and the HES
gateway, based on ISO/IEC 15045 series and ISO/IEC 18012 series . 50
Bibliography . 51

Figure 1 – Relationship between IEC 62394, ISO/IEC 14543-4-3 and
ISO/IEC 14543‑4‑302 . 7
Figure 2 – Example of electrical storage system configuration and components . 10
Figure 3 – Connection configurations . 11
Figure 4 – Assumed network stack . 11
Figure 5 – Summary of normal operation sequences . 17
Figure 6 – Sequence for obtaining NECD attribute information . 19
Figure 7 – Sequence of obtaining electrical storage system attribute information . 21
Figure 8 – Sequence to obtain status of electrical storage systems . 25
Figure 9 – Sequence for setting "AC charge amount target value" property (or "AC
discharge amount target value" property) . 28
Figure 10 – Sequence for setting "Charging electric power setting" property (or
"Discharging electric power setting" property) . 31
Figure 11 – Sequence for setting "Charging method" property (or "Discharging method"
property) . 33
Figure 12 – Sequence for setting "Charging method" property (or "Discharging method"
property) when no response is received from the storage battery . 34
Figure 13 – Sequence for setting "Operation mode setting" property . 36
Figure 14 – Sequence for setting "Operation mode setting" property when no response
is received from the storage battery . 37
Figure 15 – Sequence of terminating charging (discharging) operation based on "AC
charge amount target value" property ("AC discharge amount target value" property) . 40
Figure 16 – Sequence of terminating charge (discharge) operation based on "AC
charge amount target value" property ("AC discharge amount target value" property)
when "Operation mode setting" property is changed . 41
Figure 17 – Remote control . 42
Figure 18 – Example of setting sequence for "AC charge amount target value" property
("AC discharge amount target value" property) when "Remote control setting" property
is used . 44
Figure 19 – Example of setting sequence for "Operation mode setting" property when
"Remote control setting" property is used . 45
Figure 20 – Example of setting sequence for "Operation mode setting" property when
"Remote control setting" property is used, in case that no response is made by
electrical storage system . 46

– 4 – ISO/IEC 14543-4-302:2023
© ISO/IEC 2023
Figure A.1 – NECD protocol frame format . 49

Table 1 – NECD objects . 12
Table 2 – NECD services . 12
Table 3 – NECD properties of device object (super class) . 13
Table 4 – NECD properties of device object . 13
Table 5 – Response wait time values for controllers . 15
Table 6 – Re-set wait time for the AC charge (or discharge) amount target value . 27
Table
...