GB/T 17215.646-2018Electricity metering data exchange -- The DLMS/COSEM suite -- Part 46: Data link layer using HDLC protocol (English PDF)

1 Scope

This part of GB/T 17215.6 specifies a data link layer for connection-oriented, HDLC-based, asynchronous communication protocol sets.

To ensure a consistent data link layer service specification for both connection-oriented and connection-free operation, the data link layer is divided into two

Sublayer. logical link control sublayer (LLCsub-layer) and medium access control sublayer (MACsub-layer).

This section supports the following communication environments.

---Point-to-point and point-to-multipoint configuration;

--- Dedicated and switched data transmission equipment;

---Half duplex and full duplex connection;

--- Asynchronous start/stop transmission, 1 start bit, 8 data bits, no parity, 1 stop bit.

At the same time, the following two special procedures are defined.

--- The separately received service user layer PDU part is transmitted from the server side to the client in a transparent manner. Server side service

The user layer can send its PDU to the data link layer in fragmented form, and the data link layer can hide the fragment for the client side;

--- An event report by sending a UI frame from the slave to the primary station.

Appendix B explains the role of data models and protocols for data exchange in electricity meters.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

IEC 60050-300.2001 Electrotechnical terminology - Electrotechnical measurement and instrumentation - Part 311. General terms

Part 312. General terms for electrical measurements - Part 313. Types of electrical measuring instruments - Part 314. Special

Language (InternationalElectrotechnicalVocabulary-Electricalandelectronicmeasurementsandmeasuring instruments-Part 311.Generaltermsrelatingtomeasurements-Part 312.Generaltermsrelatingto electricaleasurements-Part 313. Typesofelectricalmeasuringinstruments-Part 314.Specificterms

Accordingtothetypeofinstrument)

IEC /T R62051.1999 Electrical measurement terms (Electricity metering-Glossary of terms)

IEC 62051-1.2004 Terms of data exchange for metering, tariffs and load control - Part 1. Part 1

COSEM measuring equipment exchanges data related terms (Electricity metering-Dataexchangeformeterreading, tariffandloadcontrol-GlossaryofTerms-Part 1,Termsrelatedtodataexchangewithmetering equipmentusingDLMS/COSEM)

IEC 62056-42.2002 Data exchange for metering, rate and load control - Part 42. Connection-oriented asynchronous data

Exchanged physical layer service process (Electricity metering-Dataexchangeformeterreading, tariffandloadcon- trol-Part 42. Physicallayerservicesandproceduresforconnectionorientedasynchronousdataex-

Change)

IEC 62056-53.2006 Data exchange for electrical measurement meter reading, rates and load control - Part 53. COSEM application layer (ElectricitymeteringDataexchangeformeterreading,tariffandloadcontrolPart 53.COSEMAppli-

GB/T 15284 | GB/T 17215.321 | GB/T 34067.2 | GB/Z 17215.652 | GB/Z 17215.651 | GB/T 17215.647 | […]