ECE Supervisory Control & Critical Infrastructure Systems IEC Presented by Jake Groat Slides by Rick Liposchak, P.E.

Transcription

1 ECE Supervisory Control & Critical Infrastructure Systems IEC Presented by Jake Groat Slides by Rick Liposchak, P.E. 17 April 2018

2 What will we cover? Lecture 1- IEC Why IEC 61850? What is IEC 61850? What does IEC cover? System Configuration description Language (SCL) Information Transfer and Engineering Tools Information Flow and Priority

3 What will we cover? Lecture 2- IEC Logical Nodes Information Transfer, Protocols- MMS Information Transfer, Protocols- GOOSE Information Transfer, Protocols- Sample Value Network Configuration Time Synchronization

4 Why IEC 61850? NIST Framework and Roadmap for Smart Grid Interoperability Standards

5 Why IEC 61850? Europe s CEN-CENELEC-ETSI Smart Grid Coordination Group Smart Grid Reference Architecture European Smart Grid Architecture Model

6 Why IEC 61850? Area Control Wide area control (Isolated Power Grid) Electrical utility control area Building automation Home automation Facility Microgrid Microgrid cluster Microgrid Virtual generation plants Independent Solar and wind power producers Electric Car Charging

7 Why IEC 61850? Complexity, Complexity, Complexity!!! We need flexible, intelligent and manageable systems.

8 How are we managing the power grid? Remote Special Protection Lease Line, Dial-up, other to Enterprise EMS, DMS and Data Collection Systems Serial, Network, Time Sync Protection X, Y & Z Equipment Monitoring SCADA Local Control LTC, DFR, GPS, PMU, Metering Interlock Interlock Interlock Equipment- Breakers, Switches, PTs, CTs, Transformers, Buses, Voltage Control, Hardwired/ Remote IED IED with Fiber COMMs

9 What is IEC 61850? History 1980s the Electric Power Research Institute (EPRI) collaboration with electric utilities stared the Integrated Utility Communications (IUC) program. Out of IUC came the Utility Communications Architecture (UCA) Open Protocols Object-oriented Self-description In the late 90s UCA was turned over to the IEC to become a standard forming IEC First parts published in by the IEC Technical Committee 57 Working Group 10.

10 The IEC Standard Made up of 24 individual documents referred to as a Part with over 4000 pages of information IEC 61850: There are additional Parts currently being worked on and Edition 2 and 3 releases for current Parts. Other IEC Standards have adopted the IEC Model! More IEEE Standard IEC harmonization projects being worked on Technical Brochures covering IEC IEC User Group 2015 POWER Engineers, Inc. All rights reserved worldwide.

11 What is IEC 61850? System Testing (FAT & SAT) Equipment Standards System Design/ Documentation Standards Quality Assurance Equipment Life Cycle Security Features No longer confined to the Device Conformance Testing System Model: SCADA, Automation, Protection, Design Configuration and Capability Data Exchange Formats & Engineering Tools Wind Generation System Availability Third Party Vendor Roles System Time Synchronization Network Configuration Organization of System Functions into Logical Nodes Information Mapping Standards Information Transfer Performance Standards by Class Information Parameter Standards Information Format Standards Data Access Data Sets IED Capability Description (.ICD) File, Instantiated IED Description (.IID) File, Configured IED Description (.CID) File, System Specification Description (.SSD) File, Configuration Description (.SCD) File, System Exchange Description (.SED) File Vendor IED Configuration Tool SCL ( Configuration Language) Configuration Tool Defines data flows, Object Modeling and structure Hydro Plants Distributed Energy Resources Distribution Automation Electrical Mobility Electrical Storage Web Services Synchrophasor Data Exchange Communications Between s Protocols: MMS, GOOSE & Sampled Value Mappings to Other Protocols GROWING!

12 Reduces cables and wires, using the Ethernet network 2015 POWER Engineers, Inc. All rights reserved worldwide.

13 Opens the door for open software applications 2015 POWER Engineers, Inc. All rights reserved worldwide.

14 Create a digital data highway 2015 POWER Engineers, Inc. All rights reserved worldwide.

15 Change how we exchange information and knowledge 2015 POWER Engineers, Inc. All rights reserved worldwide.

16 Improve functionality and minimalizing cabling; Symantec Model for the power system Sampled Values: transmit voltage and current measurements from the instrument transformers (merging units) to the IEDs GOOSE: (Generic Object Oriented Events) transmission of trip/control/blocking or other time critical signals to the plant equipment. MMS: (Manufacturing Message Specification) Non-time critical Information such as SCADA, asset management, condition monitoring, metering, File and Log transfers Control Models Delivers the information using an open semantic model of the system 2015 POWER Engineers, Inc. All rights reserved worldwide. 16

17 Improve functionality and minimalizing cabling; Network (LAN and WAN) design and management : Design Guides Seamless Ethernet redundancy protocols, High-availability and Seamless Redundancy (HSR) and Parallel Redundancy Protocol (PRP) standard IEEE 802.1Q, SNMP, Etc. Security: Uses existing standards for infrastructure IEC security series, IEEE PSRC PC Draft Standard for Cyber Security Requirements for Automation, Prot. And Control Systems, IEEE Std Draft standard for Intelligent Electronic Devices (IED) Cyber Security Capabilities, NERC CIP and others POWER Engineers, Inc. All rights reserved worldwide. 17

18 I want IEC 61850! What do you mean? Nominal referenced standards: Cigre JWG 34./35.11, IEC (all parts), IEC (all parts), IEC 60270:2000, IEC :1987, IEC 60694:1996, IEC , IEC , IEC 60848:1988, IEC IEC , IEC , IEC :2003, IEC :1997, IEC , IEC :1993, IEC :1995, IEC :1997, IEC :1997, IEC :1997, IEC , IEC :1995, IEC , IEC , IEC :2002, IEC , IEEE 802.1Q, IEEE C37.111:1999, IEEE C , IEEE C :2011, IEEE C37.118:2005, IEEE C , IEEE-SA TR , ISO 4217, ISO , ISO :2003, ISO :2003, ISO/IEC 19772, ISO/IEC 8326:1996, ISO/IEC 8649, IEC (all parts), IEC 61175:1993, IEC 61588:2009, IEC (all parts), IEC 61175:1993, IEC (all parts), IEC (all parts), IEC (all parts), IEC , IEC , IEC , IEC , IEC (all parts), IEC :2010, IEC :2010, IEC (all parts), IEC TS , IEC TS , IEC TS , IEC TS , IEC TS , IEEE , IEEE 1459:2000, IEEE 1588, IEEE 519:1992, ISO/IEC :2000, ISO/IEC 8825 (all parts), ISO/IEC , ISO/IEC , ISO/IEC , ISO/IEC , ISO/IEC , ISO/IEC , ITU-T X.234, NIST SP D, RFC 1108, RFC 1240, RFC 1952, RFC 2045, Extensible Markup Language (XML) 1.0, W3C, RFC 2104, RFC 2406, RFC 2407, RFC 2474, RFC 2991, RFC 3168, RFC 3246, RFC 3376, RFC 3547, RFC 5771, RFC 768, RFC 791, RFC 793, RFC 826, RFC 894, UCA User Group LE, XML Schema Part 1: Structures, W3C, XML Schema Part 2: Datatypes, W3C, 2015 POWER Engineers, Inc. All rights reserved worldwide. 18

19 IEC Standard Automation Automation Automation Automation Automation Automation Automation Automation Automation Automation IEC/TR ed2.0 IEC/TS ed1.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 Communication networks and systems for power utility automation - Part 1: Introduction and overview IEC 61850: IEC Store Communication networks and systems in substations - Part 2: IEC Store Glossary Semantic model of the substation and power system equipment and functions Communication netw orks and systems in substations - Part 3: IEC Store General requirements Model Data Information for SCADA, Protection, Asset Management, Condition Monitoring, Logic and Simulation Communication netw orks and systems in substations - Part 4: IEC Store System and project management Communication netw orks and systems in substations - Part 5: IEC Store Communication requirements for functions and device models Communication netw orks and systems for pow er utility automation - Part 6: Configuration description language for communication in electrical substations related to IEDs Standard File Formats saves system and device configuration IEC Store Files Information Exchange between vendor devices and provides links to the substation single line and communications IEC Store architecture Communication netw orks and systems in substations - Part 7-1: Basic communication structure for substation and feeder IEC Store equipment - Principles and models Communication netw orks and systems for pow er utility automation - Part 7-2: Basic information and communication structure - Abstract communication service interface (ACSI) Communication netw orks and systems in substations - Part 7-3: Basic communication structure for substation and feeder equipment - Common data classes IEC Store Defines an Engineering Process - Puts the design Communication netw orks and systems for pow er utility automation - Part 7-4: Basic communication structure - IEC Store Compatible logical node classes and in data a object machine classes readable format!

20 IEC Standards Automation Automation Automation Hydro Pow er DER - Distributed Energy Resources Automation Automation Automation Automation DER - Distributed Energy Resources IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed2.0 IEC ed1.0 IEC/TR ed1.0 IEC/TR ed1.0 IEC/TR ed1.0 IEC/TR ed1.0 IEC/TR ed1.0 Communication netw orks and systems in substations - Part 8-1: Specific Communication Service Mapping (SCSM) - IEC Store Mappings to MMS IEC (ISO and ISO ) other and supporting to ISO/IEC standards: Data Transport using existing Ethernet protocols, but independent of the protocol to allow for future network IEC Store protocol development. Standard Data Class and Priority for data IEC Store delivery times based on priority for different data classes IEC Store Network Sample Value Data Transfer, to Communication netw orks and systems in substations - Part 9-2: Specific Communication Service Mapping (SCSM) - IEC Store Sampled values over ISO/IEC Communication netw orks and systems in substations - Part 10: Conformance testing Communication netw orks and systems for pow er utility automation - Part 7-410: Hydroelectric pow er plants - Communication for monitoring and control Communication netw orks and systems for pow er utility automation - Part 7-420: Basic communication structure - Distributed energy resources logical nodes Communication networks and systems for power utility IEC Store automation - Part 7-510: send Basic sampled communication analog structure - data over the Network. Replaces hardwired CT and PT IEC Store connections. Communication networks and systems for power utility automation - Part 90-1: Use of IEC for the communication between substations Communication networks and systems for power utility automation - Part 90-4: Network engineering guidelines Communication networks and systems for power utility automation - Part 90-5: Use of IEC to transmit Communication networks and systems for power utility automation - Part 90-7: Object models for power converters in distributed transmission energy resources (DER) over systems Ethernet. IEC Store Defines data flows for the Engineering Process. IEC Store Allows for waveform sampled value data IEC Store

21 IEC Standards Communication networks and systems for power utility Protocol Mapping IEC ed1.0 IEC Store automation - Part 80-1: Guideline to exchanging information Web Services Communication networks IEC and systems and for power other utility supporting In Progress: IEC ed2.0 Interface automation - Part 8-2: Specific communication service mapping Jan 2014 standards: Communication networks and systems for power utility In Progress: Hydro Pow er IEC ed1.0 automation - Part 10-2: Interoperability test for hydro Jan 2014 Communication networks and systems for power utility In Progress: Metering IEC ed1.0 automation - Part 80-4: Mapping between the DLMS/COSEM (IEC May 2014 In Progress: PWI Ed. 1.0 Commissioning testing of IEC based systems Automation New In Progress: PWI Ed. 1.0 IEC modeling concepts Automation New Use of logical nodes to model functions of a substation In Progress: PWI Ed. 1.0 Automation automation system New Communication networks and systems for power utility PWI Ed. 1.0 Event). In Progress: Automation automation - Part 80-3: mapping to web protocols - New In Progress: PWI Ed. 1.0 IEC object models for scheduling Automation New Methodologies for modeling of logics for IEC based In Progress: PWI Ed. 1.0 Automation applications New In Progress: PWI Ed. 1.0 Wide area network engineering guidelines Automation New In Progress: FACT Systems PWI Ed. 1.0 Using IEC for FACTS data modeling New software change detection. DER - Distributed Energy Resources PWI Ed. 1.0 Hierarchical architecture of a DER system In Progress: New Master Station Interface PWI Ed. 1.0 Data Transfer for Time Sensitive Data over the non-deterministic network. This allows for signals such as a TRIP to be delivered over the network using GOOSE (Generic Object Oriented Connection Monitoring and Simulation Message connection supervision, a system simulation mode (allows for testing during real-time operation) and Virtual self monitoring connections In Progress: New Remove the hardwires! Using IEC for condition monitoring Use of IEC for the communication between control centres and substations

22 IEC Standards Equipment Monitoring Electrical Distribution PWI Ed. 1.0 PWI Ed. 1.0 Using IEC for condition monitoring Use of IEC for distribution automation systems Electric Cars PWI Ed. 1.0 IEC object models for electrical mobility Storage PWI Ed. 1.0 Use of IEC for electrical storage systems Hydro Pow er PWI Ed. 1.0 Communication network in hydropower plants Switchgear IEC ed2.0 ( ) Security Security IEC/TS ed1.0 ( ) IEC/TS ed1.0 ( ) General SCADA IEC ed1.0 ( ) High-voltage switchgear and controlgear - Part 3: Digital interfaces based on IEC Power systems management and associated information exchange - Data and communications security - Part 1: Communication network and system security - Introduction to security issues etc. Power systems management and associated information exchange - Data and communications security - Part 6: Security for IEC Power systems management and associated information exchange - Interoperability in the long term - Part 2: End to end quality codes for supervisory control and data acquisition (SCADA) In Progress: New In Progress: New In Progress: New In Progress: New In Progress: New IEC Store Wind Turbines IEC Application of the IEC methodology for Wind turbines IEC Store Master Station Interface PNW/TS Ed. 1.0 IEC and other supporting standards: Modeling & Digital Data Transfer Mythology used in other electrical systems such as: Distribution, Distributed Generation, Electric Cars, IEC Store Power Generation, Renewable resources, Condition Monitoring, Power Storage, Future Model Translation between the IEC Store IEC model and the IEC CIM (Common Information Model) used in IEC IEC Store and IEC for Distribution and Energy Management Systems. A standard for the power system In Progress: New Standard data exchange with other systems Future IEC TS: Power systems management and associated information exchange - Interoperability in the long term - Part 102: CIM - IEC harmonization

23 What does this do to the? WAN interface to Special Protection, Enterprise EMS, DMS and Data Collection Systems LAN- Redundant Network using VLANs Protection X, Y & Z Equipment Monitoring SCADA Local Control LTC, DFR, GPS, PMU, Metering Process Bus- Redundant Fiber Optic Network using VLANs Equipment- Breakers, Switches, PTs, CTs, Transformers, Buses, Voltage Control, IEC Merging Units

24 What does this do to the? WAN interface to Special Protection, Enterprise EMS, DMS and Data Collection Systems Centralized System Model- Protection, DFR, PMU, Voltage Control, LTC Control, etc. Security, Data Gateway & Local Control GPS IEEE 1588 Grandmaster Clock One Physical Redundant Fiber Optic Network using Virtual Networks with VLANs Equipment- Breakers, Switches, PTs, CTs, Transformers, Buses, Voltage Control,

25 Covers other functional areas of the Power Grid Communications between substations Sharing the same More data exchange, areas in the works! model and standards! Master Station Interface protocol mapping: IEC , -104 and DNP 3.0. s Distribution Energy Resources Metering Control Center Interface Equipment Monitoring Hydroelectric Power Plant High-voltage switchgear and controlgear Automation Web Services Interface Electric Cars Wind Power Plant LAN & WAN Design FACT Systems Web Services Interface Electrical Storage Systems 2015 POWER Engineers, Inc. All rights reserved worldwide. 25

26 What does this do to the? Enterprise Interface Configuration Collaborative Design Software Design and Configuration System Device Configuration System & Device Software Version Controls All the substation Automated System Testing information stored in Documentation a standard machine Full-time System Health Diagnostics language and troubleshooting format tools

27 Now comes the details!! 2015 POWER Engineers, Inc. All rights reserved worldwide. 27

28 IEC : SCL System Configuration description Language (SCL) Object model for the power system Engineering Process and information exchange between systems and devices Standard file format for system information storage

29 IEC : SCL Language Uses Extensible Markup Language (XML) Machine readable language XML schema defines and creates connections between all the components that makeup the SCL model Models the entire system in digital format File formats defined for information exchange

30 IEC : SCL Object Model Model-, Voltage Level, Bay, Equipment, Sub-Equipment, Power Transformer, Function, Sub-function ConnectivityNode, Terminal (Provides electrical circuit connections between equipment, buses and power transformers) Product (IED) Model- IED, Server, Logical Device, Logical Node Communication System Model- Not a hierarchical model, Not a physical structure model Subnetwork, Access point, Router, Clock function The primary (power) system according to IEC Industrial systems, installations and equipment and industrial products -- Structuring principles and reference designations -- Part 1: Basic rules.

31 As we design; the data is linked to an open standard file format that can also be updated through a real-time interface 31

32 IEC61850 Model: Equipment type, electrical connection to other equipment and functional area. 32

33 IEC61850 Model- Voltage Level Bay, Equipment Sub-Equipment Power Transformer Function Sub-function Connectivity Node Terminal Logical Node Voltage Level A Voltage Level B Bay Bay Equipment Bay Equipment Equipment V Bay Bay Equipment Equipment Equipment Logical Node Bay Equipment 33

34 IEC61850 Model- Name Name Logical Nodes Winding Name / Type Electrical Connections Extensible Markup Language (XML) Schema, Machine Readable language 34

35 IEC Product Model shares a link with the. 35

36 IEC61850 Product Model: Physical Equipment type, Logical Device, Logical Node, Data Objects and Attributes. 36

37 IEC61850 Product Model- The physical Intelligent Electrical Device connection to the functional data type Standard data structure Linked to the previous Model equipment Physical Device Logical Device Logical Node Data Object Data Attributes Real-time SCADA Data Asset Management Equipment Condition V Monitoring Configuration Parameters Health Local \ Remote Test & Simulation 37

38 IEC61850 Product Model- Logical Device Name Logical Node Name Data Object & Attributes XML Schema, Machine Readable language Logical Node Name Data Object & Attributes 38

39 IEC Communications Model and XML Files share links with the other models. 39

40 IEC61850 Communications Model and Information Exchange Files. 40

41 IEC61850 Communications Model XML Schema, Machine Readable language Sub-Network Access Point Physical Device Bay Equipment V Voltage Level Clock V 41

42 IEC : SCL Object Model Communications Structure Clock S1 Access Point W1 Sub-network MMS Direct Poll or Control Command Published GOOSE Subscribed GOOSE MMS Report Server, Client connection SB1 Physical Device (IED) Server X1 ( Level) Structure naming using IEC &2 LD1 Logical Device User Config Data Set GOOSE Data Object Report GOOSE Vendor Device Variable Structure E1 (Voltage Level) Q1 (Bay Level) QB1 QA1 Breaker QB2 Product/IED Structure Functional Constraint: Groups Data Types; ST=Status, CO=Control, BL=Blocking, Data Object Name: description of what the data object represents in general terms; Str=Start, Op=Operate, EnaCls= Enable Close, Common Data Class: Identifies the format of the Data Object; ENS=Enumerated Status, DPC=Controllable Double Point, SPS=Single Point Status, MV=Measured Value Data Attributes: Specific Data types descriptions under the common data class; general, q, t, ctlmodel, stval, ctlval REAL-TIME DATA & INFORMATION Data XML Links: X1E1Q1QA1CSWI1 --- X1E1Q1SB1LD1CSWI1_ST_Pos_stVal --- X1E1Q1SB1S1

43 Data Model Summary IEC (2-3-4) Physical Device (Name can be changed) Logical Device Logical Node FC (Name typically Fixed by vender) LN Prefix (optional) - One letter LN Group - Three letter LN descriptor - Instance # Custom LNs are allowed Standard does not force LN implementation even if the function exist in the IED Functional Constraint (FC) Logical Node class & data semantic Part 7-4 Data Objects Common Data Class (CDC) and Condition for presence (M/O/C/ ) Data object name semantic Part 7-4 Data attributes Type, FC, TrgOp (Trigger) and (M/O/C/ ) Extended Data attributes CDC and Data attribute name semantic Part 7-3 Custom Data Objects and Data attributes are allowed MOST of the data is OPTIONAL

44 Functional Constraint IEC Groups data attribute into allowable services such as read, substituted, etc. ST: Status Information MX: Measurands SP: Settings (outside settings group) CO: Control SV: Substitution CF: Configuration DC: Description SG: Setting Group SE: Setting Group Editable SR: Service Response OR: Operate Received BL: Blocking EX: Extended Definition LLN0 Logical Device Information BR: Buffered Report GO: Published GOOSE MMU1 Logical Node Information (Data is present in the reports) RP: Un-Buffered Report BR: Buffered Report

45 Logical Groups (IEC ) First letter in the Logical Node name A - Automatic control B - Reserved C - Supervisory control D - Distributed energy resources E - Reserved F - Functional blocks G - Generic function references H - Hydro power I - Interfacing and archiving J - Reserved K - Mechanical and non-electrical primary equipment L - System logical nodes M - Metering and measurement N - Reserved O - Reserved P - Protection functions Q - Power quality events detection related R - Protection related functions S - Supervision and monitoring T - Instrument transformer and sensors U - Reserved V - Reserved W - Wind power X - Switchgear Y - Power transformer and related functions Z - Further (power system) equipment

46 Custom Logical Nodes and data QCBAY1 LN is not found in the IEC standard LocSwPos, BlkCmd, BlkMeas or BlkUpd Data Objects are not found in the IEC standard The vender may follow the IEC schema rules but another venders tool may be programmed to only read standard logical nodes and objects, disregarding custom information. Need to depend on vender documentation to determine what these custom elements represent.

47 Standardize Information Exchange ICD file: IED Capabilities Description (ICD), template to show the user all the IEC capabilities of the device. IID file: Instantiated IED Description (IID), configured IEC device to an IEC System Configuration Tool. CID file: Configured IED Description (CID), information between the device and the vendor IED configuration tool. SSD file: System Specification Description (SSD), information between the System Specification Tool and the System Configuration Tool. SCD file: System Configuration Description (SCD), exchanges information between the System Configuration Tool and the Vendor IED Configurator Tool. SED file: System Exchange Description (SED) information between the System Configuration Tool and other IEC projects POWER Engineers, Inc. All rights reserved worldwide. 47

48 Engineering Process (IEC ) System Configuration Description Language (SCL) file transfer IED / GATEWAY IED / GATEWAY.CID file.cid file IED VENDOR X CONFIGURATION TOOL Vendor X IED.ICD file IED VENDOR Y CONFIGURATION TOOL Vendor Y IED.ICD file.iid file.icd file.scd file IEC SYSTEM SPECIFICATION TOOL: SINGLE LINE, COMMUNICATIONS AND LOGICAL NODES.SSD file IEC SYSTEM CONFIGURATION TOOL.SED file Other IEC Project

49 Engineering Tools Electrical and functional design of your system using a standard schema for documentation. Creates a specification for integrators and equipment vendors Links information to its source IED and the equipment. Single repository for design and as-built information.

50 IEC Model Pressure sensor TPRS Temperature TTMP sensor 100% Ethernet Based Use a Standard Data Model Bushing ZBSH Insulation medium SIMG supervision (gas) Voltage TVTR transformer Current transformer TCTR Monitoring SPDC and diagnostics for partial discharges Power SPTR transformer supervision Power transformer YPTR SCADA Gateway and Local HMI IEC MMS Tap changer SLTC supervision YLTC Tap changer LSVS Sampled value subscription LGOS GOOSE subscription Circuit XSWI switch Circuit breaker XCBR CSWI Switch controller PTOC Time overcurrent Measurement MMXU Hardwired CTs & PTs Hardwired equipment and inter-device signals Circuit SCBR breaker supervision Protection trip PTRC conditioning Interlocking CILO

51 What is IEC 61850?- Architecture Remote Master Station or IEEE SUB C14 P1815.1/D4.00- Map IEC61850 to DNP 3.0 Server Gateway Bay Controller MMS, GOOSE & Sample Protection Values Metering HMI Bay Controller Transformer Sub. Controller Protection Metering LAN PRP (Parallel Redundancy Protocol) Two Separate Isolated LANs Grand Master Clock MMS &GOOSE IEEE1588 Edge Clock SNTP (Simple Network Time Protocol) & IEEE1588 Hardwire Fiber CT & PT ( Could have hardwired secondary input Merging Units) Breaker Switch CT PT Hardwire LTC Breaker Switch CT PT IEEE 1588 Precision Time Protocol Process Bus: Station Equipment Merging Units HSR (Highly available Seamless Automation Ring)

52 IEC Structure and Linking Data Remote Master GATEWAY OTHER TRIPS PD1 PDX STATION LEVEL (SCADA & INTERLOCK) PD2 PD3 PD4 PDZ BAY LEVEL GOOSE SV MMS PROCESS LEVEL (Equipment Merging Units) PDxx PDxx PDxx PDxx PDxx

53 IEC Communications Planning Interface Function (IF) Describes the various substation functions within and between the station, bay, process and external substation systems.

54 End of Lecture 14 Thank you for your time! Jake Groat SCADA Engineer POWER Engineers