COSEM. Identification System EXCERPT FROM. Companion Specification for Energy Metering. DLMS User Association

Transcription

1 EXCERPT FROM Companion Specification for Energy Metering COSEM Identification System DLMS User Association device language message specification Reference number: EXCERPT FROM DLMS UA -:999, First Edition Copyright DLMS User Association

2 DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

3 Table of Contents. Foreword4. Scope..5. Introduction.6. Referenced Documents..6. Abbreviations 6 4. OBIS code structure Value group definitions.9 5. Value group A Value group B Value group C Notes for abstract objects 5.. Notes for electricity related objects. 5.4 Value group D 5.4. Notes for electricity related objects. 5.5 Value group E 5.6 Value group F 5.6. Notes for electricity related objects. 5.7 Abstract objects 5.8 Electricity related general purpose objects Electricity list objects Electricity data profile objects 5 DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

4 . Foreword Copyright: Copyright DLMS User Association. more follows (comp. DLMS UA -, First Edition) DLMS User Association EXCERPT DLMS UA - ed. 4/5 Copyright DLMS User Association

5 . Scope DLMS User Association, EXCERPT FROM COSEM Identification System, First Edition The OBIS "Object Identification System" defines the necessary identification codes (ID-codes) for commonly used data items inside metering devices. This standard specifies on one hand the overall structure of the identification code system, applicable to electricity as well as other consumption sectors (e.g. gas, water, heat). On the other hand it specifies the mapping of the meaning of data items to their identification codes. It applies to both simple and comple measurement configurations, such as meters, tariff units, data concentrators or other electronic set-ups for measuring of energy consumption. The ID-codes are based on the current EDIS document ([]). They shall be used as logical names in DLMS-COSEM for the specified purpose eclusively. Today the scheme for non-electricity types of energy are not detailed. This shall be done in future releases, which have to be created in conjunction with the standardisation committees for other media and/or eisting user groups. In addition to EDIS OBIS covers not only measurement and tariff data items. It etends the physical view of EDIS to a more global one. DLMS-COSEM needs unique names to identify all objects in a system. Therefore OBIS guarantees unique identifiers inside the whole system including abstract objects to configure or influence the behaviour of the device. DLMS User Association EXCERPT DLMS UA - ed. 5/5 Copyright DLMS User Association

6 . Introduction The trend for electronic meters and auiliary devices for the measurement and billing of power/energy is towards the integration of an ever increasing number of functions and measurement value calculations into one device. The development of device technology is moving toward consumption measurement devices which are capable of carrying out comple measurements e.g. measurement of electrical consumption in 4 quadrants. For further analysis of measurement values - especially for billing purposes - it is necessary that all such values are uniquely identifiable, independent of device and manufacturer. The same requirement applies to reading out of device data on-site using a hand held data-capturing unit, as well as to remote transmission of data to a central data analysis location. The requirement implies that all data/measurement values are assigned a unique identification number. On-site and remote meter reading, as well as of the evaluation of data recorded from several differing sources, will introduce new requirements on the identification system. For this purpose, the measurement value channel and the medium (gas, water, heat, etc.) have been taken into account in the new system. This allows meter data originating from differing sources to be transmitted and identified within one transmission telegram. Due to its general structure, the identification system OBIS, which is fully defined today for electrical applications, is also suitable for application in other areas (gas, water, heat) or for abstract objects.. Referenced Documents Ref. Title [] Electricity meters - Part : Tariff metering device as additional equipment for electricity meters - EDIS - Energy Data Identification System; DIN 486- Entwurf September 997. Project IEC (998). Abbreviations The terms used in this document shall be according to the International Electrotechnical Vocabulary IEV, IEC5 (,, ). Deviations from this principle are possible in the current version of the document. Abbreviation Eplanation COSEM Companion Specification for Energy Metering EDIS Energy Data Identification System, comp. []. IC Interface Class IEC International Electrotechnical Commission OBIS Object Identification System DLMS User Association EXCERPT DLMS UA - ed. 6/5 Copyright DLMS User Association

7 more follows (comp. DLMS UA -, First Edition) DLMS User Association EXCERPT DLMS UA - ed. 7/5 Copyright DLMS User Association

8 4. OBIS code structure OBIS codes are a combination of 6 value groups, which describe (in a hierarchical way) the eact meaning of each data item. A B C D E F Value group A The characteristic of the object to be identified (abstract object, electricity-, gas-, heat-, waterrelated object). The value group A corresponds to value group M (medium) in [] for display and IEC 67 based communication. Value group B Where equipment has several inputs for energy/quantity values of the same type or of differing types (e.g. in data concentrators, registration units), the value is assigned a physical channel number for identification of the information source. The value group B corresponds to value group KK (channel) in [] for display and IEC 67 based communication. Value group C Physical value of the information source concerned (e.g. Current, Voltage, Power, Volume, Temperature). Value group C specifies the Quantity by the type. Quantity is the main value group, to which groups 4, 5 and 6 are related. The value group C corresponds to value group GG (measurement quantity) in [] for display and IEC 67 based communication. Value group D The value group D defines the result of processing a Quantity according to a specific algorithm. This can e.g. deliver power and energy readings as well as results derived from those. The value group D corresponds to value group AA (measurement type) in [] for display and IEC 67 based communication. Value group E This value group details the measurement type as defined with value groups A to D into different readings which can e.g. controlled by rate switching. The value group E corresponds to value group T (rate) in [] for display and IEC 67 based communication. Value group F This value group further subdivides results which are partly defined by value groups A to E. A typical usage is the allocation to different time periods (reset periods). The value group F corresponds to value group VV (period) in [] for display and IEC 67 based communication. DLMS User Association EXCERPT DLMS UA - ed. 8/5 Copyright DLMS User Association

9 5. Value group definitions 5. Value group A Value group A contains the general object environment. The range for value group A is to 5. Value group A Abstract Objects Electricity related object 6 Heat related object 7 Gas related object 8 Water related object All other possible values are reserved. With implementations which contain only one energy type, even abstract objects may be defined using the code for the energy type. 5. Value group B Devices with several physical channels which generate measuring results can separate those by assigning different channel numbers to those physical channels. The allowed range is of 64. If no channel information is essential the value shall be assigned. Channel numbers from 65 to 7 are reserved for future applications. Value Group B no channel specified Channel 64 Channel reserved manufacturer specific code 55 reserved With devices having just one channel, the usage of channel no. even for device specific non metering related data items is allowed. 5. Value group C This value group is intended to define the type of a data item in its contet as described by the value group A. The meaning of this value group is dependent on the value group A and will be enlarged for additional object environments in future releases. Co-operation with standardisation groups of the different energy media will be necessary. DLMS User Association EXCERPT DLMS UA - ed. 9/5 Copyright DLMS User Association

10 Value group C abstract objects (val.a = ) general purpose objects Objects of class "Clock" Objects of class "Script Table" Objects of class "Special Days Table" Objects of class "Schedule" Objects of class "Activity Calendar" Objects of class "IEC 7 Setup" General service entries 97 General error messages Value group C electrical energy related objects (val. A=) general purpose objects ΣLi.Active power+ ΣLi Active power- ΣLi Reactive power+ 4 ΣLi Reactive power- 5 ΣLi Reactive power QI 6 ΣLi Reactive power QII 7 ΣLi Reactive power QIII 8 ΣLi Reactive power QIV 9 ΣLi Apparent power+ ΣLi Apparent power- ΣLi Power factor 4 Network frequency L Active power+ L Active power- L Reactive power+ 4.. L etc. L Current L Voltage L Power factor 4 L Frequency 4 L Active power+ 4 L Active power- 4 L Reactive power L etc. 6 L Active power+ 6 L Active power- 6 L Reactive power L etc. Electricity related service entries 97 Electricity related error messages 98 List 99 Data profile 5.. Notes for abstract objects general purpose objects: Here objects are allocated which define certain necessary access points to the meter. In general those objects are fully defined for the remaining value groups A,B,D..F All objects which are fully defined in all value groups are detailed in chapter 5.7. DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

11 5.. Notes for electricity related objects For definitions of the listed items see []. Value group C = defines general data items for electricity meters. Comp. chapter 5.8. Value group C = defines data items used electricity metering related service entries. Comp. chapter 5.8. Value group C = 97 defines data items electricity metering related error messages (value group D is also coded 97). Comp. chapter 5.8. Value group C = 98 defines data items used for list purposes. They are detailed in chapter 5.9. Value group C = 99 defines data items used for profile purposes. They are detailed in chapter Value group D The result of processing a Quantity according to a specific algorithm for energy related values or a further subdivision for general values Value group D electrical energy related objects, val. A=, val. C <>,,97,98,99 Cumulative minimum Cumulative maimum Minimum 4 Current average 5 Last average 6 Maimum demand 8 Time integral 9 Time integral Time integral Cumulative minimum Cumulative maimum Minimum 4 Current average 5 Last average 6 Maimum Cumulative minimum Cumulative maimum Minimum 4 Current average 5 Last average 6 Maimum 55 Test average 58 Test time integral Notes for electricity related objects For definitions of the listed items please refer to []. DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

12 5.5 Value group E Coding of different rates within a specific tariff structure. Value group E electrical energy related objects (val.a=) Total Rate Rate Rate 4 Rate 4 9 Rate Value group F This value group further subdivides results which are partly defined by value groups A to E. A typical usage is the allocation to different time periods (reset periods) Notes for electricity related objects Assigning of historical values to various time periods/points. Value group F VZ Period VZ- Period VZ- Period VZ- Period 4 VZ- 4 etc... most recent value.. most recent values... all available values The most recent (youngest) historical value is identified using the ID-code VZ (state of the historical value counter), and the second youngest is identified by the code VZ - etc. The operating mode of the historical value counter can differ, e.g. modulo- or modulo-, depending on the highest number of available historical values. The historical value that is represented after reaching the limit of the historical value counter, contains the historical value code for modulo-, and for other (e.g. modulo-). Values above allow to address profiles which contain more than one historical value. The maimum number is device dependent and specifies the full set of available historical values. The maimum allowed value for this is 5. DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

13 5.7 Abstract objects Abstract objects OBIS code A B C D E F Objects of class "Clock" Objects of class "Script Table" Object "Special Days Table" Object "Schedule" Object "Activity Calendar" Object "IEC 7 Setup" Object of class Association (LN or SN) Object of class Profile for standard readout Device ID numbers (non energy/channel related) Device ID (manufacturing number) Device ID Parameter changes: Number of parameterisations Date of last parameterisation change Date of last time switch programme change Date of last ripple control receiver program change.. input/output control signals: State of the input/output control signals: Output pulse duration 9 5 State of the internal control signals: 4 Internal operating status 5 Battery entries Battery hour counter (h) Battery charge display (%) Number of power failures Total failure of all phases Phase L Phase L Phase L Manufacturer specific Manufacturer specific Error object Tab. ID-codes for abstract components. Remark: If the value field F is shaded, then value group F is not used. The undefined value groups B,D and E for the objects of class Script table allow to address several instances of this object. The value group F is not used for those objects., In the manufacturer specific objects only those values shall be placed, which are not represented by another defined code, but need representation on the display as well. If this is not required, the code shall use the possibilities of a value group above DLMS User Association EXCERPT DLMS UA - ed. /5 Copyright DLMS User Association

14 5.8 Electricity related general purpose objects electricity related general purpose objects Free ID-numbers for utilities: Electricity ID Electricity ID Historical value/reset counter entries Status (VZ) of the historical value counter Number of available historical values Time stamp of the historical value VZ (last reset) Time stamp of the historical value VZ - Time stamp of the historical value VZ -n Program entries Program version no. Parameter record no. Time switch program no. RCR program no. Output pulse constants R LW [Imp/kWh] (Active energy, metrological LED ) R LB [Imp/kvarh] (Reactive energy, metrological LED) R LS [Imp/kVAh)] (Apparent energy, metrological LED) R AW [Imp/kWh] (Active energy, output contact) R AB [Imp/kvarh] (Reactive energy, output contact) R AS [Imp/kVAh)] (Apparent energy, output contact) Ratios Reading factor for power Reading factor for energy Transformer ratio current Transformer ratio voltage Threshold values Threshold power for over-consumption [kw] limit limit 4 limit for rate. limit for rate 9 Nominal values Voltage [V] Base/nominal current [A] Frequency [Hz) Maimum current [A] Input pulse constants R EW [Imp/kWh] (active energy) R EB [Imp/kvarh] (reactive energy) R ES [Imp/kVAh] (apparent energy) Measurement-/registration-period duration Measurement period (min), for average value Measurement period (min), for average value Measurement period (sec), for instantaneous value Measurement period 4(sec),, for test value Recording period (min), for load profile Recording period (min), for load profile OBIS-code A B C D E F Time entries Number of days since last reset VZ VZ -. VZ -n 4 9 DLMS User Association EXCERPT DLMS UA - ed. 4/5 Copyright DLMS User Association

15 electricity related general purpose objects All entries defined in abstract objects (val A=) as service entries (val C=) and error codes (val C=97) can be represented here as well for electricity related values OBIS-code A B C D E F Remark: If the value field F is shaded, then value group F is not used. It has to be observed, that some of the codes above are normally not used, as the related data items are covered by attributes of already defined objects (application dependent) 5.9 Electricity list objects Lists - identified with one OBIS code - are defined as a series of any kind of data (e.g. measurement value, constants, status, events). 5. Electricity data profile objects Data profiles - identified with one OBIS code - are defined as a series of measurement values of the same type or of groups of the same kind consisting of a number of different measurement values. electricity data profile objects OBIS-code A B C D E F Load profile with recording period 99 Load profile with recording period 99 Event log certification data log Value group F is not used for those data items. DLMS User Association EXCERPT DLMS UA - ed. 5/5 Copyright DLMS User Association