This document specifies the Transport Layer (TL) for the DLMS/COSEM communication protocol suite used in IP networks for both connectionless and connection-oriented. These transport layers provide OSI-style services to the application layer of the user DLMS/COSEM. The connectionless-oriented transport layer is based on the Internet standard User Datagram Protocol (UDP). The connection-oriented transport layer is based on the Internet standard Transmission Control Protocol (TCP). The main parts of DLMS/COSEM transport layer are UDP and TCP, and TCP and the additional sublayer are called encapsulation sublayer. Appendix A illustrates how OSI-style transport layer services translate between UDP and TCP function calls.
GB/T 17215.647-2021 Referenced Document
GB/T 17215.101-2010 Electricity metering.Data exchange for meter reading, tariff and load control.Glossary of terms.Part 1: Terms related to data exchange with metering equipment using DLMS/COSEM
GB/T 17215.697-2018 Electricity metering data exchange—The DLMS/COSEM suite—Part 97: Communication profile for TCP-UDP/IP networks
GB/T 2900.77-2008 Electrotechnical terminology.Electrical and electronic measurements and measuring instruments.Part 1: General terms relating to measurements
GB/T 2900.79-2008 Electrotechnical terminology.Electical and electronic measurements and measuring instruments.Part 3:Types of electrical measuring instruments
GB/T 2900.89-2012 Electrotechnical terminology.Electrical and electronic measurements and measuring instruments.Part 2:General terms relating to electrical measurements
GB/T 2900.90-2012 Electrotechnical terminology.Electrical and electronic measurements and measuring instruments.Part 4:Specific terms according to the type of instruments
IEC 60050 International Electrotechnical Vocabulary (IEV) - Index