What is BS EN 62056-9-7 – Communication profile for TCP-UDP/IP networks about ?
DLMS/COSEM is the global standard for energy & water smart management, advanced control and innovative utility meter data exchange. It specifies an object-oriented data model, an application layer protocol and media-specific communication profiles.
BS EN 62056 is a series of European Standards that discusses electricity metering data exchange through the DLMS/COSEM suite.
BS EN 62056-9-7 is one of the parts in the BS EN 62056 series that specifies the DLMS/COSEM communication profile for TCP-UDP/IP networks.
Who is BS EN 62056-9-7 - Communication profile for TCP-UDP/IP networks for ?
BS EN 62056-9-7 on TCP-UDP/IP networks is relevant to: 
- Power distribution and transmission companies 
- Communication media network providers 
- Engineers
- Local authorities 
- Regulatory bodies 
Why should you use BS EN 62056-9-7 - Communication profile for TCP-UDP/IP networks ?
The TCP-UDP/IP based communication profiles are suitable for remote data exchange with metering equipment via IP enabled networks such as wide area networks, neighbourhood networks or local networks.
BS EN 62056-9-7 covers the COSEM TCP-UDP/IP based communication profiles that consist of five protocol layers:
- The DLMS/COSEM application layer, specified in IEC 62056-5-3
- The COSEM transport layer, specified in IEC 62056-47
- A network layer: the Internet protocol: IPv4, specified in STD 0005 or IPv6 specified in RFC 2460
- A data link layer: any data link protocol supporting the network layer
- A physical layer: any PhL supported by the data link layer chosen
BS EN 62056-9-7 can thus ensure that the TCP-UDP/IP networks provide efficient and interoperable communication between all types of hardware and operating systems.
What’s changed since the last update ?
BS EN 62056-9-7:2013 supersedes EN 62056-53:2007. BS EN 62056-9-7:2013 includes some editorial changes with respect to EN 62056-53:2007. These include: 
- Targeted communication environments has been extended, a functional reference architecture figure has been added
- The structure of the profile(s) have been extended, the Figure has been generalized and simplified
- In clause 6, Identification and addressing scheme, the port number assigned by the IANA for DLMS/COSEM has been added
- In subclause 9.1, Two paragraphs specifying how confirmed and unconfirmed COSEM-OPEN and xDLMS service invocations have been added
- Subclause 9.6, Transporting long messages, has been amended. It specifies now that for transporting long messages, application layer block transfer can be used (also available now with SN referencing)
