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BS ISO/IEC 10192-3:2017:2018 Edition

BS ISO/IEC 10192-3:2017:2018 Edition

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Information technology. Home electronic system (HES) interfaces – Modular communications interface for energy management

Published By Publication Date Number of Pages
BSI 2018 100
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This part of IEC 10192 specifies a UCM (Universal Communications Module) that transfers energy management data via a home network between an end-device and an energy management agent (specified in ISO/IEC 15067‑3) or an energy service provider. This document specifies the mechanical, electrical and logical characteristics of the interfaces of UCM to an end-device (hereafter referred to as an SGD — Smart Grid Device) and a choice of interfaces to a home communications network.

This document specifies the physical and data-link characteristics of the interface between the UCM and the SGD, along with certain higher-layer and application layer elements as needed to assure interoperability over a broad range of device capabilities. It specifies a mechanism through which network, transport and application layer messages specified in other documents listed in this document may be passed through the interface. For those end-devices that cannot process one of the “pass-through” command sets, a Simple Protocol is specified according to the OSI (Open System Interconnect) reference model (ISO/IEC 7498‑1) including application layer messaging for energy management.

The UCM specified in this document is intended to be installable by the purchaser, home occupant or professional installer. The connectors are integrated in a way that allows for easy, plug-in installation. However, the manufacturer may choose to pre-install a module during production or have installation handled by a manufacturer representative or professional installer.

The scope of this document does not include safety related construction, performance, marking or instruction requirements. UCM products should additionally comply with applicable product safety standard(s). Examples of such standards are presented in Annex G.

NOTE Some regulatory authorities require that appliances intended for participation in energy management, such as thermostats, be user installable.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
9 FOREWORD
10 INTRODUCTION
11 Figures
Figure 1 – Illustrations of the modular communications interface (MCI) concept
12 1 Scope
2 Normative references
13 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
14 4 Conformance
5 Physical/electrical Interface
5.1 Form factors
5.2 Removal and exchange of a UCM
5.3 Block diagram
15 6 Serial protocol
6.1 Protocol data unit
6.2 Message Type field
Figure 2 – Modular communications interface (MCI) block diagram
Tables
Table 1 – Protocol data unit format
16 6.3 Payload length field
Table 2 – Message type assignments
17 6.4 Checksum field
6.5 Bit and byte order
6.5.1 Bit order within a byte
6.5.2 Byte order for multi-byte messages
6.6 Message synchronization and timing
6.6.1 Message sequencing
6.6.2 Link layer timing
18 Figure 3 – Link layer timing
Table 3 – Message timing requirements
19 6.6.3 Randomized link layer retries
6.6.4 Application layer timing
Figure 4 – Application layer timing
20 6.7 SGD handling of conflicting messages
7 Simple Protocol
Table 4 – Basic/Intermediate DR application layer timing parameters
21 8 Link layer
8.1 Use of link layer messages
8.2 Link layer ACK/NAK
Table 5 – Mandatory message summary
Table 6 – ACK/NAK Packet
22 8.3 Message Type “supported query”
Table 7 – Link layer NAK codes
Table 8 – Message type “supported query”
23 9 Data-link messages
9.1 Message format
Table 9 – Data-link message format
24 Table 10 – Data-link command set
25 9.2 Interface power limit negotiation
Table 11 – Interface power level indicator codes
26 9.3 Bit rate negotiation
27 9.4 Power-up and state reset
9.5 Security
9.6 Setting slot numbering
Table 12 – Bit rate indicator
28 10 Basic DR application (Message Type = 0x08, 0x01)
10.1 Basic DR application commands
10.1.1 Message format
Table 13 – Basic application data format
29 Table 14 – Basic DR application command set
32 10.1.2 Basic message fixed length
10.1.3 Event Duration field
33 10.1.4 Grouped messages
10.2 Usage and details of basic DR application messages
10.2.1 Request for power level (Opcode 0x06)
Figure 5 – Non-linear event duration scaling
34 10.2.2 Relative price commands (Opcode 0x07 and 0x08)
35 10.2.3 Time remaining in present price period (Opcode 0x09)
10.2.4 Operating state monitoring (Opcodes 0x12 and 0x13)
Figure 6 – Non-linear relative price scaling
36 Table 15 – Operating state codes
37 11 Intermediate DR application (Message Type = 0x08, 0x02)
11.1 Intermediate DR message set
Table 16 – Operating-state codes for usage conditions
38 Table 17 – Intermediate DR application command set (command byte description)
39 Table 18 – Intermediate DR application command set
40 11.2 Usage and details of Intermediate DR application messages
11.2.1 Info request
Table 19 – Response code values
43 11.2.2 Get/Set UTC time
44 11.2.3 Get/Set energy price
46 11.2.4 Get/Set tier
47 11.2.5 Get/Set temperature offset
48 11.2.6 Get/Set set point
49 11.2.7 Autonomous cycling
51 11.2.8 Demand reduction – terminate cycling
11.3 Demand response event schedules
11.3.1 Function
52 11.3.2 Send scheduled events request
11.4 Energy consumption
11.4.1 Function
11.4.2 Commodity read
55 11.4.3 Get/Set CommodityType
Figure 7 – Illustration of energy storage capacity
57 12 Commissioning and network messages (Message Type = 0x08, 0x04)
13 Pass-Through Mode
13.1 Pass-Through method
13.1.1 General
Table 20 – Commissioning and network messages
58 13.1.2 Full Encapsulation in the Message Payload
13.1.3 Message Type Field
13.1.4 Message Type Support Query
13.1.5 Maximum Message Length Negotiation
13.1.6 Pass-Through mode protocols
13.2 Pass-Through mode protocols
13.2.1 USNAP 1.0 protocol Pass-Through
Table 21 – Pass-Through message
Table 22 – USNAP1.0 over serial
59 13.2.2 SEP1.0 or 1.1 Pass-Through
13.2.3 ClimateTalk Pass-Through
13.2.4 General Internet Protocol Pass-Through
Table 23 – SEP1.0 or 1.1 over serial
Table 24 – ClimateTalk over serial
60 13.2.5 ISO/IEC 14543-4-3 Pass-Through
13.2.6 ISO/IEC 14543-3-1 Pass-Through
Figure 8 – Internet Protocol Pass-Through (IPv6)
Table 25 – ISO/IEC 14543-4-3 over serial
61 13.2.7 ISO/IEC 14908-1 Pass-Through
13.2.8 SunSpec Pass-Through
14 Typical communication exchanges
Table 26 – ISO/IEC 14543-3-1 over serial
Table 27 – ISO/IEC 14908-1 over serial
Table 28 – SunSpec over serial
62 15 General security principles
16 Load management event randomization
63 Figure 9 – Illustration of randomization of events by communications modules
64 Annex A (normative)Low voltage DC form factor
A.1 General
A.2 Limitations
A.3 Power for UCM
A.4 Mechanical interface
A.4.1 DC form factor board layout
65 A.4.2 Module configuration
Figure A.1 – DC form factor PCB dimensions
66 Figure A.2 – DC form factor housing dimensions – top view
67 Figure A.3 – DC form factor housing dimensions – side view
68 A.4.3 Form factor
A.4.4 Housing materials
A.4.5 Connector type
Figure A.4 – DC form factor housing dimensions – end view
69 A.4.6 Pin assignments
A.5 Electrical interface
A.5.1 Electrical Interface Levels
A.5.2 Signal timing
Figure A.5 – Pin assignment
Figure A.6 – SPI Mode 0 bit timing
70 A.5.3 Interface circuits
A.6 Data transfer protocol
A.6.1 Control signals
Table A.1 – Low voltage interface signal definitions
71 A.6.2 Clock and data rate
A.6.3 Multiple slots
A.7 Link layer data flow
A.8 Messages
A.8.1 Frame structure
A.8.2 Message synchronization (frame delimiting)
A.8.3 Message filling (inter-message byte filling)
72 A.8.4 Command/Response encoding
A.8.5 Checksum calculation
A.8.6 Master/Slave
A.8.7 Flow control
A.8.8 Error detection and recovery
73 A.9 Operation
A.9.1 Transaction sequence
Figure A.7 – SPI transaction sequence: SGD-initiated message to the UCM
74 Figure A.8 – SPI transaction sequence: UCM-initiated message to the SGD
75 Table A.2 – SPI physical timing requirements
76 A.9.2 SPI data transfer state machine
Figure A.9 – SPI data transfer state machine
77 A.9.3 SGD transmitter operation
A.9.4 SGD device receiver operation
78 A.9.5 UCM operations
79 Annex B (informative)Description of DC form factor applications
B.1 General
B.2 Applications of ISO/IEC 24379
B.3 Physical Form Factor Review
80 B.4 Observations with regard to UCM and ATA confusion
B.4.1 General
B.4.2 ATA into Smart Grid Device
B.4.3 Universal Communication Module into ATA device bay
B.5 Conclusion
81 Annex C (normative)AC form factor
C.1 General
C.2 Physical form
C.2.1 AC SGD and AC UCM connector
82 Figure C.1 – Panel-mount AC connector form factor (device side shown) and pin-out
Figure C.2 – PCB-mount AC UCM connector (housing)
83 Figure C.3 – Cable AC UCM connector (housing)
84 Figure C.4 – Panel mount AC SGD connector form factor dimensions
85 Figure C.5 – PCB mount connector dimensions
Figure C.6 – Cable connector dimensions
86 C.2.2 AC enclosure requirements
Figure C.7 – Contact dimensions for cable connector and PCB mount connector
87 Figure C.8 – Reserved area and dimensions on SGD (receptacle)
88 Figure C.9 – Right side and top view of maximum UCM dimensions
89 C.3 AC power
Figure C.10 – Left side and bottom view of maximum UCM dimensions
90 Figure C.11 – Typical RS-485 polarity and byte transfer
Figure C.12 – RS-485 connections
91 C.4 Obtaining message sync
92 Annex D (normative)Fletcher checksum
D.1 Checksum method
D.2 Calculating the checksum
D.3 Decoding the checksum
93 Annex E (informative)Example Visual Basic code
94 F.1 Average Price versus Time Varying Charges
F.2 Relative price command
98 Bibliography

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BS ISO/IEC 10192-3:2017
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