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KMDC-850-GW IEC61850 Gateway [내부링크]

ITEM KMDC-850-GW IEC61850 Gateway Module Feature This is a gateway assistant to...

PNP OVERVIEW 2 [내부링크]

IED Basic Intelligent Electronic Device. May be acquisition system only Can be responsible for control Possible Inputs- Configuration, Setting and Command Data Possible Output Values, Conditions, Status and results. PLCs Programmed with Ladder Logic. Parameters IEDs and RTUs can monitor and control a variety of physical process information: Accumulate Measurements like KWh Monitor Temperature Monitor voltage and current Switch breakers ON and OFF Transfer configuration files from SCADA What do the DNP devices talk about Binary input data that is useful to monitor .......

DNP Function Codes 1 [내부링크]

Confirm (DNP function code 0) The confirm function is used to confirm the reception of a message fragment when the application control field (AC) in the received fragment has the CON bit set any station receiving a message fragment with the CON bit set MUST respond with a CONFIRMation message BEFORE sending any other application layer message any station that sends a message fragment with the CON bit set must wait until the CONFIRMation message arrives before continuing with message fragment transmission or another transaction.Read (DNP function code 1) The read function is t.......

DNP Function Codes 2 [내부링크]

Write (DNP3 function code 2) The write function code is used for moving objects from a master station to an Outstation The object header is defined the same as in a read request. The response from the Outstation is always a function code followed by the IIN. Typical uses of the Write function are to download configuration or files to an Outstation and to set the time in the Outstation.Write (DNP3 function code 2)Write (DNP3 function code 2)Write Responses The response to a Write request can only consist of the IIN (Internal Indications) that indicates the success of the Write op.......

DNP Function Codes 3 [내부링크]

Operate (DNP function code 4) The operate function code is used to activate one or more control or analog outputs at an Outstation. A matching message using the select function code must previously have been received, and the arm timer must still be active before the activation will take place Operate (DNP function code 4) Direct Operate (DNP function code 5) The direct operate function code is used to activate one or more outputs or setpoints at an Outstation. A preceding select message is not required. Direct Operate (DNP function code 5) Direct Operate No Acknowl.......

DNP3.0 Function Codes 4 -end [내부링크]

IMMEDIATE FREEZE (DNP3.0 function code 7) This function code is used to copy the specified data objects to a freeze buffer. Upon reception of the message, the Outstation should copy the current values of the specified data objects to their appropriate freeze buffers. The objects which were frozen can be requested (in another request) by asking for frozen objects. IMMEDIATE FREEZE (DNP3.0 function code 7) IMMEDIATE FREEZE No Ack (DNP3.0 function code 8) This function code works identically to the previous function code (Immediate Freeze) except that no Outstation respo.......

IEC 61850 – 7 – 1 Principles and Models 1 [내부링크]

IEC-61850-7-1 IEC 61850-7-4, IEC 61850-7-3, IEC 61850-7-2, IEC 61850-6, and IEC 61850-8-1 are closely related. This specification provides an overview of these parts and it describes how these parts are interwovenIEC-61850-7-1 IEC 61850-7-4 defines specific information models for substation automation functions (for example, breaker with status of breaker position, settings for a protection function, etc.) – What is modelled and could be exchanged IEC 61850-7-3 has a list of commonly used information (for example, for double point control, 3-phase measurand value, etc.) – what.......

IEC 61850 – 7 – 1 Principles and Models 2 -end [내부링크]

IED Modelled as LNs Logical NodeLogical NodeExample – The Pos attribute Data Attributes ServicesMapping to communication technologies

IEC-61850 ACSI -1 [내부링크]

Overall Communication ArchitectureModelling ACSIACSI Abstract Communications Service Interface Defines a set of Objects Defines a set of Services to manipulate and access those objects Defines how to build logical devices out of logical nodes Defines how to organize data objects derived from logical nodes ACSI Abstract Communications Service Interface Defines a set of Objects Defines a set of Services to manipulate and access those objects Defines how to build logical devices out of logical nodes Defines how to organize data objects derived from logical node.......

IEC-61850 ACSI -2 [내부링크]

Excerpt of conceptual model ACSI Basic Concepts ACSI also defines other service models for substation automation like ‘Data sets’ and ‘reporting’. -These models are linked to Logical Nodes and Data. The information exchange services are completely defined in the ACSI. Overview of basic information models The conceptual models to build the domain-specific information models are: SERVER – represents the external visible behaviour of a device. All other ACSI models are part of the server. LOGICAL-DEVICE (LD) – contains the information produced and consumed by a .......

IEC-61850 ACSI -3 [내부링크]

ACSI ServicesType definitions Data attribute types -The data attribute type concept is depicted in Figure 4. The data attribute type (DAType) is a class that has a Name, an indication (Presence) if the attribute is mandatory (present) or optional (possibly not-present), and BasicTypes. The BasicTypes are used to build PrimitiveComponents and CompositeComponents. PrimitiveComponents shall have a Name, a Presence, and a BasicType The Composite Component is constructed by one or more PrimitiveComponents each of BasicType Common CompositeComponents and PrimitiveComponents are .......

IEC-61850 ACSI -4 [내부링크]

Common ACSI types - ObjectReference Instances of classes in the hierarchical information model (ACSI class hierarchy of logical device, logical node, data, data attributes) shall be constructed by the concatenation of all instance names comprising the whole path-name of an instance of a class that identifies the instance uniquely. The type of the ObjectReference shall be as specified belowObjectReference syntax Common ACSI types ServiceError type The service error code for negative service responses (originated within the server) shall be as specified below Common ACSI type.......

IEC-61850 ACSI -5 [내부링크]

Common ACSI types - TimeQuality The TimeQuality shall provide information about the time source of the sending IED as listed below TriggerConditions The TriggerConditions type shall represent the trigger conditions used to trigger processing reports and logs SERVER class model The class SERVER shall represent the externally visible behavior of a device. For simple devices the server may comprise just one logical device with the GOOSE control model with no other service. SERVER class definition The SERVER shall be a composition as defined below SERVER class attribut.......

IEC 61850 기술자료 OVERVIEW 1 [내부링크]

kmdata에서 공식 블로그를 오픈하게되어 IEC 61850에 대한 기술자료를 공개하고자 합니다. 기술자료는 영어로 진행 되고 여러 파트로 나뉘어 진행됩니다.OVERVIEW 1 에서 다루게 되는 자료는 IEC 61850 기술에 대한 개요 입니다. 간단한 소개와 다른 프로토콜과의 비교글이 되겠습니다.IEC 61850은 전력시스템 관리 및 관련 정보교환에 대한 국제표준화를 담당하는 IEC / TC 57에서 발행 한 일련의 표준입니다.OVERVIEW 에서 다루게 될 파트는 아래와 같습니다.Introduction IEC-61850 is a set of standards issued by the IEC Technical Committee 57 (TC57) associated with “Power systems management and associated informati.......

IEC 61850 기술자료 OVERVIEW 2 [내부링크]

Substation data modelSubstation data model - 61850Point vs CDC (defined in 7-3)Data Class (defined in 7-2)The DATA class provides means to specify typed information, for example, position of a switch with quality information and timestamp, contained in LOGICALNODEsCDCs (defined in 7-3) CDCs are specializations of the DATA class A CDC is a grouping of Data Attributes (DA), each of a type defined as a DAType A DAType may consist of Composite Components or Primitive Components Each Primitive component references a BasicTypeLogical Nodes (defined in 7-4) A Logical Node (LN) i.......

IEC 61850 기술자료 OVERVIEW 3 [내부링크]

Data Refinement Overall Communication Architecture ACSI – Abstract Communication Service Interface ACSI is Abstract Abstract Services isolate object models from communication specifics ‘Future proofing’ - allows adoption of future technologies ACSI Client-Server based communication Services for - Data Access, Controls, Event Reporting and Logging, Self-description, File transfer etc Publish-Subscribe communication services for fast and reliable distribution of -Events -Sampled ValuesACSI Models ACSI Services

IEC 61850 기술자료 OVERVIEW 4 [내부링크]

Logical Nodes A named grouping of data and associated services that is logically related to some power system function Logical Node ExampleIEC61850-7-4 Logical NodesData Objects Represent data within a logical node - voltage, current, relay settings. etc. Aggregate attributes of defined types - measurements, status, controls, configuration, etc. Have independent access control Have standardized names, types Data In Logical NodesSingle Point Status (SPS) CDCSample CaptureDataset Comprised of references to data objects, accessed with a single name May be predefined or dynamic .......

IEC 61850 기술자료 OVERVIEW 5 [내부링크]

Reporting Model Reports members of data sets -By exception, triggered by data, quality changes -Periodic integrity report -On Demand Multiple clients, Multiple Report Controls Various formats of reports to preserve bandwidthLogging Model Logs members of data sets -Same triggering as Report Model -Logged to circular buffer -Can log multiple data sets -Can be retrieved by multiple clients Retrieval by entry number or timestampReporting and Logging GSE Model Generic Object Oriented system-wide Event -Fast and reliable distribution of data -Publisher sends to multiple subscrib.......

IEC 61850 기술자료 OVERVIEW 6 -end- [내부링크]

Sampled Measured Values A method for transmitting sampled measurements from transducers such as CTs, VTs, and digital I/O. Enables sharing of I/O signals among IEDs Supports 2 transmission methods: - Multicast service (MSVC) over Ethernet - Unicast (point-to-point) service (USVC) over serial links. Control Model IEC61850 Controls 4 Control Models: - Direct Control with normal security- SBO Control with normal security - Direct Control with enhanced security - SBO Control with enhanced security Enhanced Security provides validation and supervision of the control action and re.......

IEC/ISO 9506 Manufacturing Message Specification 1 [내부링크]

StandardizationMMS is an international standard (ISO 9506) that is developed and maintained by the ISO Technical Committee 184 (TC184), Sub-committee 5 (SC5) of the International Organization for Standardization (ISO). History The North-American Electronic Industries Association (EIA), committee IE31 developed the draft standard proposal #1393A titled “User Level Format and Protocol for Bidirectional Transfer of Digitally Encoded Information in a Manufacturing Environment” This was intended for use in shop-floors with NC machinery General Motors Corporation used the EIA-1393.......

IEC/ISO 9506 Manufacturing Message Specification 2 [내부링크]

MMS Object – Virtual Manufacturing Device The VMD itself can be viewed as the object in which all other MMS objects are contained. It has attributes that reflect general capabilities and a general set of methods that are inherited by all other MMS objects. The VMD can be equated to the physical device (IED, RTU ..)MMS Object – Named Variables This class of object is, in general, used for “real-time” data exchange. Its intended use is for data monitoring, non-historic data reporting, and allowing data to be reported in an unsolicited fashion. MMS Object – Named Variable Li.......

IED (Intelligent Electric Device-IEC61850)회사제품 소개 [내부링크]

케이엠데이타는 한국전력의 Digital 변전소를 구축하는 핵심 전력IT 기기인 IED (Intelligent Electric Device)제품 군을 한국전력에 납품하고 있습니다.IED (Intelligent Electric Device)는 전력계통에 문제발생시 이를 감지하고, 해당 구간을 계통에서 분리해주는 디지털변전소에서 안전성을 보장하는 핵심역할을 담당합니다.KMDATA의 T-IED23kV는 IEC61850기반 변전자동화에 필요한 계측/감시/제어/보호/인터록 기능을 보유한 IED입니다. 여러 가지 보호기능을 고속의 PLC기능과 연계하여 다양하고 유연한 엔지니어링이 가능하고, DI/DO 포인트는 확장구조를 채택함에 따라 보다 많은 상태정보 확인 및 출력제어가 가능합니다.T-IED23k.......

IEC/ISO 9506 Manufacturing Message Specification 3 -END [내부링크]

MMS Services Each of the MMS model objects have five methods that are in common Get - to obtain the value of a specified object Set - to change the value of a specified object Query Attributes – to get the structure or capability of the specified object Create – to create a new instance of the object Delete – to delete an existing instance of the object ASN.1 Notation The ASN.1 Notation is to provide encoding and decoding specifications for protocol syntax that is to be sent over a network. The intent of this standard (ISO/IEC 8824 and 8825) is to have a neutral represent.......

PNP OVERVIEW 1 [내부링크]

DNP3 Protocols define the rules by which devices talk with each other DNP3 is a set of communication protocols used between components in process automation. Mainly used in utilities such as electricity, water and oil. DNP3 is used for communication between control centers (SCADA Master) and RTUS/IEDsDNP3 DNP –Distributed Network Protocol SCADA – Supervisory Control And Data Acquisition. DNP3 is based on IEC 60870-5 International counterpart – IEC60870-5-101Protocol OverviewProtocol ParticipantsSCADA MasterSample SCADA Screen RTU Basics RTU – Rem.......