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Excerpt DLMS Blue Book:COSEM Interface Classes and OBIS Object Identification System. DLMS User Association EXCERPT DLMS UA Green Book Edition and Blue Book Edition have been published. more details, see complete Blue Book DLMS UA High Level Security (HLS) authentication more details, see complete Blue Book DLMS UA.

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DLMS User Association, COSEM Identification System and Interface Classes, Fifth Edition. Table of Contents. 1. Foreword. IEC is a set of standards for Electricity metering data exchange by International The Blue book describes the COSEM meter object model and the OBIS DLMS/COSEM protocol is not specific to electricity metering, it is also used for. Book color DLMS UA Books contents. Mapping to standard id. Blue the Blue Book describes the. COSEM meter object model and the object identification system.

If the parameter required is in the no-security group, just a get.

If the parameter required is in the low-security group, a password authentication of the HHU is required before information can be read. In case of high-security parameters, the meter challenges the handheld unit with a cryptographic password.

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The handheld unit must return an encrypted password. If the password exchange is correct, the meter accepts the handheld unit: it is "signed on.

This describes some registers that describe the current count of metered units i. Occasionally a manufacturer will define a new quantity to measure, and in this case, a new or different data type will appear in the meter definition.

Most metering units have special modes for calibration and resetting meter registers.

These modes are usually protected by anti-tampering features such as switches that sense if the meter enclosure has been opened. The HHU may also be given limited rights to set or reset certain parameters in the meter. The handheld unit then sends a sign-off message.

If no sign-off message is sent, the meter automatically signs off after a previously negotiated time interval after the last message. You can execute it using the jdlms-console-client script found in the folder run-scripts.

Executing the script without any parameters will print help information to the screen. Instead of running the application from the terminal you can create Eclipse project files as explained in our FAQs and run it from within Eclipse. Many meters offer an optical interface at the front of the meter.

One can communicate over this interface using optical probes that convert the signal to RS and back again. The entity accessing the meter is called the client or master respectively.

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In this manual we will always use the terms client and server. Figure 2. Each logical device has an address in the range [0, ].

As an example, a meter could consist of one logical device for electricity metering at address 18 and another one for a connected gas meter at address The content of this device may vary, but it must at least have a list of all logical devices inside the physical smart meter.

Figure 3.

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COSEM physical device 3. Server Address The server address consists of the physical address and the address of the logical device.

Over serial the physical address also referred to as the lower HDLC address ranges from 0 to It can either be left empty over RS or not RS The logical device address is sometimes called server wPort or server SAP. The client ID 16 is a special client ID, which refers to the public client for which no authentication or encryption is required. These are identified using attribute ID and method ID respectively.

Attributes and methods can be addressed in two ways: using logical name referencing and short name referencing. The referencing method needs is negotiated during connection build up.Data link layer information: All other protocol layers are implicitly tested.

Your Answer

Port type: At the end of the test run, the CTT generates a test report showing which test groups have run and the result of each test group.

It also necessary to have information relating to the IUT and its testing environment, like addresses, timeouts, baud rates, passwords. It is the state-of-art communication protocol and future or smart metering. The CT shall be executable with minimal human interference standardised test.

The physical media are usually either modulated light, sent with an LED and received with a photodiode , or a pair of wires, usually modulated by a 20mA current loop. A physical device hosting 3 logical devices, with addresses 1,2 and 3 So, how do we read the value of the active energy out of the logical devices?

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