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DLMS client configuration example (view source)
Revision as of 12:20, 17 November 2023
, 12:20, 17 November 2023no edit summary
<p style="color:red">The information in this page is updated in accordance with [https://wiki.teltonika-networks.com/view/FW_%26_SDK_Downloads'''00.07.05.4'''] firmware version.</p>
<p style="color:red">The information in this page is updated in accordance with [https://wiki.teltonika-networks.com/view/FW_%26_SDK_Downloads'''00.07.05.4'''] firmware version.</p>
==Introduction==
==Introduction==
DLMS (''Device Language Message Specification'') is a set of standards used for communication between various meters, monitoring equipment, and the respective controllers. It uses '''TCP/IP or serial communication''' and utilizes '''Client and Server topology''', where the client polls the data from the server (''usually gas/electricity/water meter''). It should be noted, that there often is confusion between IEC 62056-21 and DLMS. '''IEC 62056-21 is not DLMS'''.
DLMS (''Device Language Message Specification'') is a set of standards used for communication between various meters, monitoring equipment, and the respective controllers. It uses '''TCP/IP or serial communication''' and utilizes '''Client and Server topology''', where the client polls the data from the server (''usually gas/electricity/water meter''). It should be noted, that there often is confusion between IEC 62056-21 and DLMS. '''IEC 62056-21 is not DLMS''' and is not currently supported by our devices.
COSEM (''Companion Specification for Energy Metering'') is a protocol that falls under the DLMS standard. It provides application and transport layers for the protocol. COSEM defines a set of '''objects''' that represent the data and functions of the meter, and a set of '''services''' that allow the client to access the objects. COSEM also specifies the '''security''' mechanisms for authentication and encryption of the messages. It should be noted, that for now our implementation of COSEM only allows us to perform read operations on DLMS servers, with write operations not currently being supported.
COSEM (''Companion Specification for Energy Metering'') is a protocol that falls under the DLMS standard. It provides application and transport layers for the protocol. COSEM defines a set of '''objects''' that represent the data and functions of the meter, and a set of '''services''' that allow the client to access the objects. COSEM also specifies the '''security''' mechanisms for authentication and encryption of the messages. It should be noted, that for now our implementation of COSEM only allows us to perform read operations on DLMS servers, with write operations not currently being supported.
==What problems can our DLMS implementation solve?==
Let's say your company is responsible for monitoring the electricity and gas consumption of a factory. Instead of having separate equipment for monitoring both meters, sending the data to a remote server, and providing internet connectivity, RUT956 can do it all in one single compact package:
[[File:DLMS_client_configuration_example_topology_v1.png|border|class=tlt-border|800x800px]]<br>
In an event of connection loss, RUT956 can store the DLMS data in the volatile memory, and send it to the monitoring platform once the connectivity is restored. This way you will ensure data integrity and accurate monitoring results.<br>
Various VPN services on our devices can keep data secure along its way to your monitoring servers, as well as ensuring RUT956 and the connected devices reachability remotely.<br>
==Configuration==
==Configuration==
The first step in getting DLMS up and running will be to configure the connection to a device. Here we will cover both TCP/IP and serial connection configuration. To get started with DLMS, a separate '''DLMS Client''' package needs to be downloaded from our package manager, which can be found by navigating to System → Package Manager → Packages.
The first step in getting DLMS up and running will be to configure the connection to a device. Here we will cover both TCP/IP and serial connection configuration. To get started with DLMS, a separate '''DLMS Client''' package needs to be downloaded from our package manager, which can be found by navigating to System → Package Manager → Packages.