EC 61850-8-2:2018 specifies a method of exchanging data through any kinds of network, including public networks. Among the various kinds of services specified in IEC 61850-7-2, only the client/server and time synchronization services are considered so far. NOTE Client/server services of GOOSE and SMV models are mapped as well. For the client/server services, the principle is to map the objects and services of the ACSI (Abstract Communication Service Interface defined in IEC 61850-7-2) to XML messages transported over XMPP. The mapping description includes mainly three aspects: • The usage of the XMPP protocol itself, describing in details which features are really used and how they are used by the mapping. • How to achieve end-to-end secured communications. • The description of the XML payloads corresponding to each ACSI service thanks in particular to the XML Schema and XML message examples.

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5	Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
9	English CONTENTS
20	FOREWORD
22	INTRODUCTION
23	1 Scope 1.1 General 1.2 Namespace name and version
24	1.3 Code Component distribution 2 Normative references
26	3 Terms and definitions
28	4 Abbreviated terms
29	5 Overview 5.1 General Figures Figure 1 – Overview of functionality and profiles
30	5.2 Mapping of client/server services 5.2.1 General Tables Table 1 – Services requiring client/server Communication Profile
31	5.2.2 XML payloads
32	5.2.3 Implementation agreements 5.2.4 XMPP Figure 2 – Example of XML Payload
33	5.3 Time sync services 6 Usage of XMPP 6.1 Principles 6.2 Connection establishment 6.2.1 General 6.2.2 Usage of TLS and SASL
34	6.2.3 Stream Compression 6.3 Mapping of ACSI services Figure 3 – Generic structure of client/server ACSI services
35	6.4 Usage of XMPP presence 6.5 Usage of the Roster 6.6 XMPP extensions 6.6.1 Usage of XMPP PING – XEP 0199 6.6.2 Usage of Stream Management – XEP 0198 6.7 Implementation agreements – XMPP PING – XEP 0199
36	7 End-to-end security 8 Payload description 8.1 XSD overview 8.2 Objects of IEC 61850 8.2.1 General
37	8.2.2 Logical Node (LN) Figure 4 – Algorithm for logical node mapping Table 2 – Mapping of ACSI classes on MMS concepts
38	Figure 5 – Ordered list of functional constraints
39	Figure 6 – Example of Logical Node type description
40	8.2.3 Mapping of references of Logical Nodes to VariableAccessSpecifications Figure 7 – List of the flattened Named Variables corresponding to an LN
41	8.2.4 Mapping of DataObjects reference to VariableAccessSpecifications Figure 8 – XML mapping of a LNReference with direct access Figure 9 – XML mapping of a LNReference with alternate access
42	8.2.5 Mapping of DataAttributes (DataAttr) reference to VariableAccessSpecifications 8.2.6 Usage of alternate access for DataObjects and DataAttributes references Figure 10 – Direct XML mapping of a FCD Figure 11 – Direct XML mapping of a FCDA
43	Figure 12 – Alternate access without array element
45	Figure 13 – Alternate access with array element
46	Figure 14 – Alternate access with flattened variable and array element
47	8.3 Mapping of IEC 61850-7-2 data attributes 8.3.1 BasicTypes Table 3 – Mapping of ACSI BasicTypes
48	8.3.2 Additional definitions of BasicType
50	8.3.3 Common ACSITypes
51	Table 4 – PhyComAddr structure for Layer 2 communication
52	Table 5 – PhyComAddr for UPD/IP communication
54	Table 6 – GetNameList conflicting IEC 61850 objectClass and objectScope Table 7 – Service error mappings for ACSI services using GetNameList
55	Table 8 – Read service error mappings
56	Table 9 – Write service error mappings
57	Table 10 – GetFileAttributeValues service error mappings
58	Table 11 – Encoding of IEC 61850-7-2 TimeQuality
59	Table 12 – Encoding of the TriggerConditions Table 13 – Encoding of the ReasonForInclusionInReport
60	Table 14 – Encoding of the ReasonForInclusionInLog Table 15 – Encoding of the RCBReportOptions Table 16 – Encoding of the SVMessageOptions
61	8.3.4 Mapping of quality common data attribute type specified in IEC 61850-7-2 Table 17 – Encoding of the CheckConditions
62	8.4 General mapping of data values within XML payloads Table 18 – Encoding of IEC 61850-7-2 quality
63	8.5 Extended behaviour for optimization of bandwidth 9 Server class model 9.1 General Table 19 – Examples of data values encoding
64	9.2 GetServerDirectory 9.2.1 General Table 20 – Mapping of ACSI GetServerDirectory (LOGICAL DEVICE)
65	Figure 15 – XML structure of GetServerDirectory-Request (LD) Figure 16 – XML structure of GetServerDirectory-Response (LD)
66	Table 21 – Mapping of ACSI GetServerDirectory (FILE)
67	10 Association model 10.1 Association relation to communication profiles Figure 17 – XML structure of GetServerDirectory-Request (FILE) Figure 18 – XML structure of GetServerDirectory-Response (FILE) Table 22 – Association model versus communication profiles
68	10.2 Two party association model for client/server communication profile 10.2.1 Establishment of a secured end-to-end association 10.2.2 Association services
69	Table 23 – Mapping of ACSI Associate service Table 24 – Description of Associate request elements
70	Figure 19 – XML structure of Associate-Request Figure 20 – XML structure of Associate-Response Table 25 – Description of Associate response elements
71	Table 26 – Associate ACSI service error mappings
73	11 Logical device model 11.1 General Table 27 – Mapping of ACSI Release service Table 28 – Release service error mappings
74	Table 29 – Mapping of ACSI GetLogicalDeviceDirectory
75	11.2 Response- Figure 21 – XML structure of GetLogicalDeviceDirectory-Request Figure 22 – XML structure of GetLogicalDeviceDirectory-Response
76	11.3 Extended behaviour Table 30 – Extended mapping of ACSI GeLogicalDeviceDirectory
77	12 Logical Node model 12.1 General Figure 23 – XML structure of extended GetLogicalDeviceDirectory-Request Figure 24 – XML structure of extended GetLogicalDeviceDirectory-Response Table 31 – Objectclasses for GetLogicalNodeDirectory service
78	12.2 GetLogicalNodeDirectory 12.2.1 General
79	Figure 25 – XML structure of GetLogicalNodeDirectory-Request Table 32 – Mapping of ACSI GetLogicalNodeDirectory
80	12.2.2 Response- 12.2.3 Extended behaviour Figure 26 – XML structure of GetLogicalNodeDirectory-Response
81	Table 33 – Extended mapping of ACSI GeLogicalNodeDirectory
82	Figure 27 – XML structure of extended GetLogicalNodeDirectory-Request (step 1) Figure 28 – XML structure of extended GetLogicalNodeDirectory-Response (step 1) Figure 29 – XML structure of extended GetLogicalNodeDirectory-Request (step 2)
83	12.3 GetAllDataValues 12.3.1 General Figure 30 – XML structure of extended GetLogicalNodeDirectory-Response (step 2)
84	Table 34 – Mapping of ACSI GetAllDataValues
85	Figure 31 – XML structure of GetAllDataValues-Request
86	13 DataObject, DataAttribute, SubDataAttribute model 13.1 General 13.2 GetDataValues Figure 32 – XML structure of GetAllDataValues-Response
87	Figure 33 – XML structure of GetDataValues-Request Table 35 – Mapping of GetDataValues service parameters
88	13.3 SetDataValues Figure 34 – XML structure of GetDataValues-Response Table 36 – Mapping of SetDataValues service parameters
89	13.4 GetDataDirectory 13.4.1 General Figure 35 – XML structure of SetDataValues-Request Figure 36 – XML structure of SetDataValues-Response
90	Figure 37 – XML structure of GetDataDirectory-Request Table 37 – Mapping of GetDataDirectory service parameters
91	13.4.2 Response- Figure 38 – XML structure of GetDataDirectory-Response
92	13.4.3 Extended behaviour Table 38 – GetDataDirectory service error mappings
93	Figure 39 – XML structure of extended GetDataDirectory-Request Table 39 – Extended mapping of ACSI GetDataDirectory
94	13.5 GetDataDefinition 14 Data set class model 14.1 General Figure 40 – XML structure of extended GetDataDirectory-Response Figure 41 – Mapping of reference to persistent data set within logical device
95	14.2 GetDataSetValues 14.2.1 General Figure 42 – Mapping of reference to persistent data set ouside logical device Figure 43 – Mapping of reference to non-persistent data set Table 40 – Mapping of GetDataSetValues service parameters
96	Figure 44 – XML structure of GetDataSetValues-Request
97	14.2.2 Response− Figure 45 – XML structure of GetDataSetValues-Response
98	14.3 SetDataSetValues 14.3.1 General Table 41 – GetDataSetValues error mappings Table 42 – Mapping of SetDataSetValues service parameters
99	14.3.2 Response- Figure 46 – XML structure of SetDataSetValues-Request Figure 47 – XML structure of SetDataSetValues-Response
100	14.4 CreateDataSet 14.4.1 General Table 43 – SetDataSetValues error mappings
101	Figure 48 – XML structure of CreateDataSet-Request Table 44 – Mapping of CreateDataSet service parameters
102	14.4.2 Response− Figure 49 – XML structure of CreateDataSet-Response
103	14.5 DeleteDataSet 14.5.1 General Table 45 – CreateDataSet service error mappings Table 46 – Mapping of DeleteDataSet service parameters
104	14.5.2 Errors Figure 50 – XML structure of DeleteDataSet-Request Figure 51 – XML structure of DeleteDataSet-Response
105	14.6 GetDataSetDirectory 14.6.1 General Table 47 – DeleteDataSet service error mappings
106	Figure 52 – XML structure of GetDataSetDirectory-Request Table 48 – Mapping of GetDataSetDirectory service parameters
107	14.6.2 Response- Figure 53 – XML structure of GetDataSetDirectory-Response
108	15 ServiceTracking model Table 49 – GetDataSetDirectory service error mappings Table 50 – Mapping of ACSI ServiceType values
110	Table 51 – Mapping of ACSI errorCode values Table 52 – Mapping of CDC LTS
111	16 Setting group control class model 16.1 Setting group control block definition 16.2 Setting group control class services 16.2.1 SelectActiveSG Table 53 – Mapping of CDC GTS Table 54 – Mapping of SGCB
112	Figure 54 – XML structure of SelectActiveSG-Request Figure 55 – XML structure of SelectActiveSG-Response+ Figure 56 – XML structure of SelectActiveSG-Response-
113	16.2.2 SelectEditSG 16.2.3 SetEditSGValue Figure 57 – XML structure of SelectEditSG-Request
114	16.2.4 ConfirmEditSGValues Figure 58 – XML structure of SetEditSGValue-Request
115	16.2.5 GetEditSGValue Figure 59 – XML structure of ConfirmEditSGValues Figure 60 – XML structure of GetEditSGValue-Request
116	16.2.6 GetSGCBValues Figure 61 – XML structure of GetEditSGValue-Response Figure 62 – XML structure of GetSGCBValues-Request
117	17 Reporting and logging class model 17.1 Report model – Report control blocks 17.1.1 Buffered report control block Figure 63 – XML structure of GetSGCBValues-Response
118	Table 55 – BRCB structure
119	17.1.2 Unbuffered report control block Table 56 – URCB structure
120	17.2 Reporting services 17.2.1 Report service Table 57 – Order of AccessResults for Report
122	Figure 64 – XML structure of Report
123	17.2.2 GetBRCBValues Table 58 – Mapping of GetBRCBValues service parameters
124	Figure 65 – XML structure of GetBRCBValues-Request
126	17.2.3 SetBRCBValues Figure 66 – XML structure of GetBRCBValues-Response
127	Table 59 – Mapping of SetBRCBValues service parameters
128	Figure 67 – XML structure of SetBRCBValues-Request
129	17.2.4 GetURCBValues 17.2.5 SetURCBValues 17.3 Log model 17.3.1 Overview Figure 68 – XML structure of SetBRCBValues-Response
130	Figure 69 – Relationship of LCB attributes to IEC 61850-7-2 log definitions Table 60 – LCB structure
131	17.3.2 Description of LCB attributes 17.3.3 Mapping of log and log control services
132	Table 61 – Mapping of QueryLogByTime service parameters
133	Figure 70 – XML structure of QueryLogByTime-Request
134	Figure 71 – XML structure of QueryLogByTime-Response
136	Figure 72 – XML structure of QueryLogAfter-Request Table 62 – ServiceError mappings for Log services Table 63 – Mapping of QueryLogAfter-Request parameters
137	17.3.4 Conformance 18 Mapping of the generic substation event model (GSE) – Generic object oriented substation event (GOOSE) 18.1 GOOSE control definition Table 64 – Log conformance requirements Table 65 –TypeDescription definition for GoCB structure
138	18.2 Specialization for Layer 2 GoCB 18.3 Specialization for Routable GOOSE 18.4 GOOSE services 18.4.1 General 18.4.2 GetGoCBValues 18.4.3 SetGoCBValues 19 Transmission of sampled values class model 19.1 Sampled value control block 19.1.1 General 19.1.2 Specialization for Layer 2 Sampled value
139	19.1.3 Specialization for Routable Sampled value 19.1.4 Specialization for Unicast Sampled value 19.2 Sampled value services 19.2.1 General 19.2.2 GetMSVCBValues 19.2.3 SetMSVCBValues 20 Control class model 20.1 General
140	Table 66 – Controllable service parameters Table 67 – Mapping of IEC 61850-7-2 control model to control components
141	20.2 Overview of control services mapping 20.3 Select Table 68 – Mapping of control services
142	Figure 73 – XML structure of Select-Request Table 69 – Mapping of Select parameters
143	20.4 SelectWithValue 20.4.1 SelectWithValue service parameter mapping 20.4.2 General mapping of the SelectWithValue service Figure 74 – XML structure of Select-Response Table 70 – SelectWithValue service parameter mapping
144	Table 71 – Mapping of SelectWithValue parameters
145	Figure 75 – XML structure of SelectWithValue-Request
146	20.4.3 SelectWithValue response– 20.5 Cancel 20.5.1 Cancel service parameter mapping Figure 76 – XML structure of SelectWithValue-Response+ Figure 77 – XML structure of SelectWithValue-Response- Table 72 – SelectWithValue, Oper and Cancel DataAccessError specification
147	20.5.2 General mapping of the Cancel service Table 73 – Cancel service parameter mapping
148	20.5.3 Cancel response– Table 74 – Mapping of the Cancel service
149	20.6 Operate 20.6.1 Operate service parameter mapping 20.6.2 General mapping of the Operate service Table 75 – Operate service parameter mapping
150	Table 76 – Mapping of the Operate service
151	20.6.3 Operate response– 20.6.4 CommandTermination service parameter mapping 20.6.5 General mapping of the CommandTermination service
152	Table 77 – Mapping of the CommandTermination service
153	Figure 78 – XML structure of CommandTermination Request+
155	20.7 TimeActivatedOperate 20.7.1 TimeActivatedOperate service parameter mapping 20.7.2 Mapping of the TimeActivatedOperate service 20.8 TimeActivatedOperateTermination service Figure 79 – XML structure of CommandTermination Request-
156	20.9 AdditionalCauseDiagnosis in negative control service responses Table 78 – Definition of LastApplError variable structure
157	Figure 80 – XML structure of InformationReport with AdditionalCauseDiagnosis
159	20.10 Tracking of control services 20.10.1 General 20.10.2 Mapping of the Control service tracking (CTS) Table 79 – Mapping of ACSI AddCause values
160	21 Time and time synchronization model 22 Naming conventions 23 File transfer 23.1 File transfer model Table 80 – Mapping of CDC CTS Table 81 – Mapping of ACSI file class to MMS file object
161	Table 82 – Reserved file suffixes
162	23.2 File services 23.2.1 GetFile
163	Figure 81 – Mapping of ACSI GetFile to FileOpen, FileRead, FileClose
164	Table 83 – Mapping of ACSI GetFile service
165	Figure 82 – XML example of FileOpen Request Figure 83 – XML example of FileOpen Response+ Figure 84 – XML example of FileRead Request (first) Table 84 – GetFile service error mappings
166	Figure 85 – XML example of FileRead Response+ (first) Figure 86 – XML example of FileRead Request (second) Figure 87 – XML example of FileRead Response+ (second) Figure 88 – XML example of FileClose Request Figure 89 – XML example of FileClose Response
167	Table 85 – Mappings of ACSI ServiceErrors to FileOpen Service Errors Table 86 – Mappings of ACSI ServiceErrors to FileRead Service Errors
168	23.2.2 SetFile Figure 90 – Mapping of ACSI SetFile service Table 87 – Mappings of ACSI ServiceErrors to FileClose Service Errors
169	Figure 91 – XML example of ObtainFile Request Figure 92 – XML example of ObtainFile Response Table 88 – Mapping of ACSI SetFile parameters
170	23.2.3 DeleteFile Table 89 – Mappings of ACSI ServiceErrors to ObtainFile Service Errors Table 90 – Mapping of ACSI DeleteFile service
171	23.2.4 GetFileAttributeValues Figure 93 – XML example of DeleteFile Request Figure 94 – XML example of DeleteFile Response Table 91 – Mappings of ACSI ServiceErrors to DeleteFile Service Errors
172	Figure 95 – XML example of GetFileAttributeValues Request Table 92 – Mapping of ACSI GetFileAttributeValues parameters
173	24 Conformance 24.1 Notation 24.2 PICS 24.2.1 Profile conformance Figure 96 – XML example of GetFileAttributeValues Response
174	Table 93 – PICS for A-Profile support Table 94 – PICS for Time Sync A-Profile support
175	24.2.2 XML Payload conformance Table 95 – PICS for T-Profile support Table 96 – MMS InitiateRequest general parameters
176	Table 97 – MMS InitiateResponse general parameters Table 98 – MMS service supported conformance table
179	Table 99 – MMS Parameter CBB
180	Table 100 – GetNameList conformance statement Table 101 – GetCapabilityList conformance statement
181	Table 102 – GetDomainAttributes conformance statement Table 103 – Status conformance statement
182	Table 104 – Cancel conformance statement Table 105 – Identify conformance statement
183	Table 106 – AlternateAccess conformance statement Table 107 – AlternateAccessSelection conformance statement
185	Figure 97 – VariableSpecification for LDevice/MHAI1.HA.phsAHar(7).cVal.mag.f
186	Figure 98 – Shorter VariableSpecification for LDevice/MHAI1.HA.phsAHar(7).cVal.mag.f
187	Figure 99 – Non conformant VariableSpecification I
188	Figure 100 – Non conformant VariableSpecification II
189	Figure 101 – VariableSpecification for LDevice/MHAI1.HA.phsAHar(7) [MX]
190	Figure 102 – Shorter VariableSpecification for LDevice/MHAI1.HA.phsAHar(7) [MX] Table 108 – VariableAccessSpecification conformance statement
191	Table 109 – VariableSpecification conformance statement Table 110 – Read conformance statement Table 111 – Write conformance statement
192	Table 112 – InformationReport conformance statement Table 113 – GetVariableAccessAttributes conformance statement Table 114 – DefineNamedVariableList conformance statement
193	Table 115 –GetNamedVariableListAttributes conformance statement Table 116 – DeleteNamedVariableList conformance statement Table 117 – ReadJournal conformance statement
194	Table 118 – EntryContent conformance statement
195	Table 119 – FileDirectory conformance statement Table 120 – FileOpen conformance statement Table 121 – FileRead conformance statement
196	24.3 PICS Statement 24.3.1 General 24.3.2 Substation configuration language 25 Substation Configuration Language (SCL) Table 122 – FileClose conformance statement Table 123 – Allowed P-Type definitions for client/server addressing
197	Annex A (normative)Communication stack A.1 Overview A.1.1 General
198	A.1.2 XMPP communication profiles A.1.3 Non-XMPP communication profiles Figure A.1 – Overview of functionality and profiles
199	A.2 Communication stack A.2.1 Overview of the protocol usage A.2.2 Client/server services and communication profiles Figure A.2 – OSI reference model and profiles
200	Table A.1 – Service and protocols for client/server communication A-Profile Table A.2 – Service and protocols for client/server XMPP T-Profile
201	A.2.3 Time sync Table A.3 – Time sync A-Profile
202	Table A.4 – Time sync T-Profile
203	Annex B (informative)Deployment of XMPP infrastructure B.1 General B.2 Deployment of XMPP within one XMPP domain B.2.1 Use case facility Figure B.1 – Facility domain
204	B.2.2 Use case hierarchy within a facility Figure B.2 – Hierarchical Aggregation at facility
205	B.3 Deployment of XMPP while interconnecting more than one XMPP domain B.3.1 Interconnection of XMPP Domain Figure B.3 – DER Management System at facility
206	Figure B.4 – Facility Management integration at DSO
207	Figure B.5 – Multiple facilities at DSO
208	Figure B.6 – VPP and contracted DERs
209	Figure B.7 – indirect control using VPP JIDs Figure B.8 – VPP direct control using VPP JIDs
210	Figure B.9 – VPP direct control using DSO JIDs Figure B.10 – DSO Indirect control with VPP JIDs
211	B.3.2 Definition of a federation communication between XMPP domains Figure B.11 – DSO direct control
212	B.3.3 Interconnection of Domain with federation Figure B.12 – Concept of federation in XMPP
213	Figure B.13 – Federation DSO – Facility Figure B.14 – Use of federation with VPP
214	Figure B.15 – communication with VPP JIDs – indirect control Figure B.16 – VPP communication with VPP JIDs – direct control
215	Figure B.17 – VPP communication with DSO JIDs
216	B.4 Communication path outage and recovery Figure B.18 – DSO Communication with VPP JIDs
217	Annex C (informative)Security for DER integration based on XMPP C.1 General Figure C.1 – Base system for discussion of IT security requirements
218	C.2 Assumptions and boundary conditions C.3 Derivation of security requirements
219	C.4 Mapping of security options to XMPP based integration of DER
220	C.5 Sequence diagrams C.5.1 General C.5.2 XMPP and Stream opening
221	C.5.3 Stream establishment, ROSTER and presence Figure C.2 – XMPP Stream establishment – IEC 61850 Server to the XMPP Server Figure C.3 – XMPP Stream establishment – IEC 61850 Client to the XMPP Server
222	C.5.4 Communication outage Figure C.4 – Stream establishment, roster and presence
223	Figure C.5 – Communication outage – Loss of link
224	Figure C.6 – Communication outage – Presence unavailable
225	C.5.5 Request Response (Clear Transfer) Figure C.7 – Request response
226	Figure C.8 – Request – Abort
227	Annex D (normative)Mapping of services and errors over XMPP stanzas Table D.1 – ACSI services mapping over XMPP stanzas
229	Table D.2 – Error mapping over XMPP stanzas
230	Annex E (informative)Intentional deviations from IEC 61850-8-1 SCSM

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BSI	2019	232


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Status	Under Review
Pages	232
Publication Date	2019-03-05
ISBN	978 0 580 90794 4
Standard Number	BS EN IEC 61850-8-2:2019
Title	Communication networks and systems for power utility automation – Specific Communication Service Mapping (SCSM). Mapping to Extensible Messaging Presence Protocol (XMPP)
Identical National Standard Of	IEC 61850-8-2:2018, EN IEC 61850-8-2:2019
Descriptors	Data processing, Frames (data transmission), Data representation, Communication networks, Local area networks, Data transmission, Information exchange, Compatibility, Data transfer, Electric substations, Telecommunication, Telecommunication systems, Open systems interconnection
Publisher	BSI
Committee	PEL/57
ICS Codes	33.200 - Telecontrol. Telemetering

BS EN IEC 61850-8-2:2019

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