8/23/2020 0 Comments Dlms Meter Reading Software
If you use our site, you agree to the use of cookies as explained in our Privacy Statement.The standardization work follows the work of the DLMS UA with certain delays.Therefore, the latest version of the specification can always be found in the DLMS UA Books.
The DLMSCOSEM specification has been adopted by the IEC as part of the IEC 62056 DLMSCOSEM suite since 2002. New editions of the DLMS UA Books specifying major new elements lead to new editions of the IEC 62056 standards. Dlms Meter Reading Software Full List OfFor a full list of the standards in the IEC 62056 suite, please visit the IEC TC 13 website. The DLMSCOSEM specification is referenced in EN 13757-1, Communication systems for meters - Part 1: Data exchange, which also includes the OBIS codes for fluids and energies other than electricity. This work resulted in Technical Specifications specifying DLMSCOSEM based communication profiles like PRIME PLC and G3-PLC. The results of the work of CENELEC TC13 WG02 have been transferred to TC13 WG14 for international standardization. Today, it is a global organization with 300 members from all continents and 60 countries involving utilities, meter manufacturers, system developers and integrators, and chip manufacturers. The DLMS User Association maintains a D Type liaison with IEC TC13 WG14 responsible for international standards for meter data exchange and establishing the IEC 62056 series. In this role, the DLMS UA provides maintenance, registration and compliance certification services for IEC 62056 DLMSCOSEM. The DLMS User Association defines the protocols into a set of four specification documents namely Green Book, Yellow Book, Blue Book and White Book. The Blue Book describes the COSEM meter object model and the OBIS object identification system, the Green Book describes the architecture and protocols, the Yellow Book treats all the questions concerning conformance testing, the White Book contains the glossary of terms. If a product passes the conformance test specified in the Yellow Book, then a certification of DLMSCOSEM compliance is issued by the DLMS UA. DLMSCOSEM protocol is not specific to electricity metering, it is also used for gas, water and heat metering. Any real-world thing mapped to an appropriate class type can be described by the attributes defined in the standard, and the methods defined therewith allow operations to be performed on the attributes. Conventionally, the first attribute in an object is the logical name, also defined as the OBIS code in case of LN referencing. Objects that share common characteristics are generalized as instantiations of an interface class with defined classid. Instantiations of an interface class are called COSEM objects. IEC 62056-62 defines nineteen interface classes for COSEM object model. It is designed to operate over any media, including the Internet. A meter sends ASCII (in modes A.D) or HDLC (mode E) data to a nearby hand-held unit (HHU) using a serial port. 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. During sign-on, the handheld unit addresses a particular meter by number. The meter and hand-held unit negotiate various parameters such as the maximum frame length during transmission and reception, whether multiple frames can be sent without acknowledging individual frames ( windowing ), the fastest communication rate that they can both manage (only in case of mode E switching to HDLC) etc. ![]() Dlms Meter Reading Software Password Exchange IsIf 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.e. 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. If no sign-off message is sent, the meter automatically signs off after a previously negotiated time interval after the last message. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |