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About This Item
Full Description
This profile may be considered as an adaptation and extension of the UDP/IP communication profile specified in IEC 62056-9-7:2013. As in that standard, the PHY and MAC layers are out of the Scope.
This Technical Specification specifies a number of features essential to the efficient operation of a large scale AMI using mesh NNs. These features include:
- identification of the DLMS/COSEM client and server participating in an application association (AA) with their system title, so that this identification does not change when the IP address of the server changes, see Clause 6;
- a mechanism to inform the client of the binding between the server's system title and its current IP address(es), see 5.5.3;
- the use of the DLMS/COSEM UDP based transport layer, that allows keeping DLMS/COSEM AAs open for long periods, while the device may leave and join the mesh NN and/or its IP address may change, see 7.2.2;
- DLMS/COSEM application layer and application process level security features that can be used in a mesh environment, see 7.4.2;
- a mechanism to organize servers to one or more groups based on various conditions, so that the requests can be broadcasted to all devices attached to the mesh network, but only those servers belonging to the group carry out the request and respond, see 8.2;
- a mechanism that allows to send the response to a request in designated time windows and with a randomized delay, see 8.3.
- the use of a specific UDP port that allows efficient UDP header compression, see 6.3.3.
Cross References:
IEC 60050
IEC/TR 62051
IEC/TR 62051-1
IEC 62056-1-0
IEC 62056-4-7
IEC 62056-5-3:2016
IEC 62056-6-1
IEC 62056-6-2
IEC 62056-9-7:2013
RFC 768
RFC 2460
RFC 3315
RFC 4291
RFC 4862
RFC 4944
RFC 6282
RFC 6550
All current amendments available at time of purchase are included with the purchase of this document.