1、 ANSI/CTA Standard Modular Communications Interface for Energy Management ANSI/CTA-2045-A March 2018 NOTICE Consumer Technology Association (CTA) Standards, Bulletins and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturer
2、s and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards, Bulletins and other technical publications shall not in any respect preclu
3、de any member or nonmember of the Consumer Technology Association from manufacturing or selling products not conforming to such Standards, Bulletins or other technical publications, nor shall the existence of such Standards, Bulletins and other technical publications preclude their voluntary use by
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5、ANSI) patent policy. By such action, the Consumer Technology Association does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Bulletin or other technical publication. Note: The users attention is called to the possibility tha
6、t compliance with this standard may require use of an invention covered by patent rights. By publication of this standard, no position is taken with respect to the validity of this claim or of any patent rights in connection therewith. The patent holder has, however, filed a statement of willingness
7、 to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license. Details may be obtained from the publisher. This document does not purport to address all safety problems associated with its use or all applicable regulat
8、ory requirements. It is the responsibility of the user of this document to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. This document is copyrighted by the Consumer Technology Association (CTA) and may not be reproduce
9、d, in whole or part, without written permission. Federal copyright law prohibits unauthorized reproduction of this document by any means. Organizations may obtain permission to reproduce a limited number of copies by entering into a license agreement. Requests to reproduce text, data, charts, figure
10、s or other material should be made to the Consumer Technology Association (CTA). (Formulated under the cognizance of the CTA R7.8 Modular Communication Interface for Energy Management Subcommittee.) Published by CONSUMER TECHNOLOGY ASSOCIATION 2018 Technology encourage manufacturers to build an MCI
11、interface into their products that can accept a simple communications module. Consumers and program managers are then free to select whatever communication solution works best for their particular environment. The concept is relatively straightforward. Utilizing the RS485 and Serial Peripheral Inter
12、face (SPI)1supported by most silicon chips today, the MCI protocol is capable of simply passing through standard protocols including Internet Protocol (IP), OpenADR, and SEP from the communications module to the enddevice. Network security is supported through the selected transport protocol, such a
13、s WiFi, ZigBee, HomePlug, ZWave, LonWorks, etc., in addition to network or application layer security. Communications messaging supported by this MCI standard supports direct load control, TOU, CPP, RTP, peak time rebates, all kinds of block rates, and a range of ancillary services. The functionalit
14、y of the removable modules can be tailored by utilities or other load managing entities to provide support for the unique needs in a given region or service territory, without impacting the enddevices. The CTA2045A Modular Communications Interface for Energy Management standard will enable a new gen
15、eration of “smart grid ready” products that limit risks and constraints of proprietary communications technologies and evolving standards. This approach simplifies Home Area Network (HAN) device and network interoperability, fosters program and product innovation, and opens DR programs to a broader
16、range of consumer products while respecting customer choice and a competitive market landscape. 1See http:/ and http:/en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus ANSI/CTA2045A 2 2 Scope This standard specifies a modular communications interface (MCI) to facilitate communications with resid
17、ential devices for applications such as energy management. The MCI provides a standard interface for energy management signals and messages to reach devices. Such devices may include an energy management hub, an energy management controller, an energy management agent, a residential gateway, an ener
18、gy services interface, a sensor, a thermostat, an appliance, or other consumer products. The specific residential devices to use an MCI are not specified. For energy management, the choice depends on the system and the network topology. If a hub topology is chosen, the MCI may be located on the hub.
19、 The connection between the hub and end devices such as appliances is not specified. The MCI specifies a physical connection from a communication module to residential Smart Grid Devices and a communications protocol with OSI (Open System Interconnection) layer specifications including application l
20、ayer messaging. An optional translation function is specified for connection to another communications medium. Examples include power line carrier or radio (RF), depending on the home area network installed or the connection to an energy management system accessnetwork supplied by a service provider
21、. This second medium is outside the scope of this standard. The MCI also specifies a passthrough mechanism to allow for an alternate architecture in which the Smart Grid Device terminates the passedthrough protocol (e.g., SEP, OpenADR, etc.). CTA2045A details the mechanical, electrical, and logical
22、characteristics of a socket interface that allows communication devices (hereafter referredto as UCMs universal communication modules) to be separated from end devices (hereafter referredto as SGDs Smart Grid Devices). Although the potential applications of this technology are wideranging, it is int
23、ended at a minimum to provide a means by which residential products may be able to work with any load management system through user installable plugin communication modules. Figure 21 illustrates the general concept. Figure 21 Illustrations of the Modular Communications Concept on a controlled devi
24、ce (left) or Energy Management Console (right) ANSI/CTA2045A 3 CTA2045A identifies the physical and datalink characteristics of the interface, along with certain higherlayer and application layer elements as needed to assure interoperability over a broad range of device capabilities. In addition, it
25、 defines a mechanism through which network, transport and application layer messages (passthrough; defined in other standards) may be passed across the interface. The scope of this standard is limited to the socket interface between the UCM and the SGD. It does not address the technology or protocol
26、 associated with the communications system of which the UCM is part. The scope of this specification 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 st
27、andards are noted in Informative Annex E. 2.1 References 2.1.1 Normative References The following specifications and documents contain provisions that, through reference in this text, constitute normative provisions of this standard. At the time of publication, the editions indicated were valid. All
28、 specifications and documents are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the specifications and documents listed here. 2.1.2 Normative References List RS485 (also known as TIA485A): E
29、lectrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems (Revision A, March 1998. Including Reaffirmation Notice December 7, 2012) 2.1.3 Normative References Acquisition Telecommunications Industry Association (TIA); 1320 North Courthouse Road, Suite 200,
30、Arlington, VA 22201; Tel: +1 703 907 7700; Internet: http:/www.tiaonline.org/standards/buytiastandards 2.1.4 Informative References The following documents contain provisions that, through reference in this text, constitute informative provisions of this document. At the time of publication, the edi
31、tions indicated were valid. All documents are subject to revision, and parties to agreements based on this document are encouraged to investigate the possibility of applying the most recent editions of the documents listed here. ANSI/CTA2045A 4 2.1.5 Informative References List 1. ClimateTalk 2.0 (D
32、ocument revision 01, June 2013) 2. OpenADR 2.0a and 2.0b Profiles Specifications (2012 and 2013); OpenADR 1.0 Profile Specification (2009) 3. IEEE 2030.52013 IEEE Adoption of Smart Energy Profile 2.0 Application Protocol Standard (2013) 4. SAE J1772 Electric Vehicle and Plug in Hybrid Electric Vehic
33、le Conductive Charge Coupler (January 2010) 5. USNAP Serial Interface Specification versions 1.0 (July 2009) and 2.0 (2010) 6. ZigBee Alliance Smart Energy Profile 1.x, various revisions 7. ZWave Alliance Specification (August 2016) 8. Currency Codes ISO 4217 Maintenance agency, SNV SIX Interbank Cl
34、earing (http:/www.currencyiso.org/iso_index/iso_tables/iso_tables_a1.htm) 9. ISO/IEC 247391:2009 Information Technology AT Attachment with Packet Interface 7 Part 1: Register Delivered Command Set, Logical Register Set (ATA/ATAPI7 V1) 10. ECHONET Lite Specification, Version 1.12 11. ISO/IEC 1454331:
35、2006 Information Technology Home Electronic Systems (HES) Architecture Part 31: Communication layers Application layer for network based control of HES Class 1 12. ANSI/CTA709.1D Control Network Protocol Specification (April 2014) (Formerly ANSI/CEA709.1D; or ISO/IEC 149081:2012 Information Technolo
36、gy Control Network Protocol Part 1: Protocol stack); LonTalk 13. ANSI/CTA2045.1 MCI for Firmware Transfer Message Set (July 2014) 14. ANSI/CTA2045.2 MCI for Generic Display Message Set (July 2014) 15. ANSI/CTA2045.3 MCI for Thermostat Message Set (August 2014) 16. SunSpec Model Data Exchange SunSpec
37、 Alliance Interoperability Specification Document #: 12021 17. ASHRAE 1352016 Standard 1352016 BACnetA Data Communication Protocol for Building Automation and Control Networks (ANSI Approved); or ISO 164845:2014 Building automation and control systems (BACS) Part 5: Data communication protocol ANSI/
38、CTA2045A 5 2.1.6 Informative References Acquisition 1. ClimateTalk Alliance; 2400 Camino Ramon, Suite 375, San Ramon, CA 94583; Tel: +1 925 275 6641; Internet: http:/www.climatetalkalliance.org/ClimateTalkTechnology/SpecDownload.aspx 2. OpenADR Alliance; 16820 Jackson Oaks Drive, Suite 1A, Morgan Hi
39、ll, CA 95037; Tel: +1 408 778 8370; Internet: www.openadr.org 3. IEEE Operations Center; 445 Hoes Lane, Piscataway, NJ 08854414; Tel: +1 732 981 0060; Internet: https:/standards.ieee.org/ 4. Society of Automotive Engineers; 400 Commonwealth Drive, Warrendale, PA 15096; Tel: +1 724 776 4841; Internet
40、: http:/standards.sae.org/ 5. USNAP Alliance; 275 Tennant Avenue Suite 202 Morgan Hill, CA 95037; Internet: www.usnap.org 6. ZigBee Alliance; 508 Second Street, Suite 206, Davis, CA 95616; Tel: +1 530 564 4565; Internet: http:/www.zigbee.org 7. ZWave Alliance; 47467 Fremont Blvd. Fremont, CA 94538;
41、Tel: +1 510 897 0200; Internet: http:/www.zwavealliance.org/ 8. International Organization for Standardization CP 401 1214 Vernier, Geneva, Switzerland; Tel: +41 22 749 01 11; Internet https:/www.iso.org 9. International Organization for Standardization CP 401 1214 Vernier, Geneva, Switzerland; Tel:
42、 +41 22 749 01 11; Internet: https:/www.iso.org 10. ECHONET Consortium 1050003 Shimbashi TS Bldg. 4F, 1225 Nishishinbashi, Minatoku, Tokyo 1050003 Japan; Tel: +81 3 6205 4142; Internet: https:/echonet.jp 11. International Organization for Standardization CP 401 1214 Vernier, Geneva, Switzerland; Tel
43、: +41 22 749 01 11; Internet https:/www.iso.org 12. Consumer Technology Association (CTA), standardsCTA.tech; Techstreet, 3916 Ranchero Drive, Ann Arbor, MI, USA 48108; Tel: 800 699 9277; Fax: +1 734 780 2046; Internet http:/; or International Organization for Standardization CP 401 1214 Vernier, Ge
44、neva, Switzerland; Tel: +41 22 749 01 11; Internet: https:/www.iso.org 13. SunSpec Alliance, 4030 Moorpark Avenue Suite 109, San Jose, CA 95117 Tel: +1 831 227 1073; Internet: http:/sunspec.org 14. ASHRAE, 1791 Tullie Circle, N.E. Atlanta, GA 30329 Tel: +1 404 636 8400; Internet: https:/www.ashrae.o
45、rg; or International Organization for Standardization CP 401 1214 Vernier, Geneva, Switzerland; Tel: +41 22 749 01 11; Internet: https:/www.iso.org ANSI/CTA2045A 6 2.2 Compliance As used in this document “shall” and “must” denote mandatory provisions of the standard. “Should” denotes a provision tha
46、t is recommended but not mandatory. “May” denotes a feature whose presence does not preclude compliance, and implementation of which is optional. “Optional” denotes items that may or may not be present in a compliant device. 2.3 Acronyms & Abbreviations SGD Smart Grid Device the end device that is b
47、eing informed of grid conditions UCM Universal Communications Module the communications device that provides communication connectivity to an SGD SPI Serial Peripheral Interface data transfer standard originally defined by Motorola (Freescale) 0x00 0xFF Two digit (8 bit) hexadecimal numbers ranging
48、from 0 to 255 decimal b0, b1 b15 Bit values within a hexadecimal number. b0 is lsb. MS Abbreviation for Most Significant LS Abbreviation for Least Significant AMI Advanced Metering Infrastructure SEP Smart Energy Profile OpenADR 2.0 Automated Demand Response standard from the OpenADR Alliance IP DR
49、Internet Protocol Demand Response 3 Physical/Electrical Interface Two physical form factors are presently defined. End device manufacturers may choose either, and communications module providers who wish to cover all products may offer two module versions. For both form factors, the communications protocol across the socket interface is the same, as described herein. Also in both cases, the
