This document defines the broadband fieldbus specification AUTBUS. AUTBUS implements real-time, high reliability and deterministic transmission and application for both industrial fieldbus data and ISO/IEC/IEEE 8802-3 Ethernet data by shared medium bus.

This document explains the structure and content of AUTBUS, and describes the definition and specification of Physical Layer (PhL) protocol / service, Data-link Layer (DLL) protocol / service and Application Layer (AL) protocol / service of AUTBUS.

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2	undefined
4	CONTENTS
13	FOREWORD
14	1 Scope 2 Normative references 3 Terms and definitions, abbreviated terms and symbols 3.1 Terms and definitions
16	3.2 Abbreviated terms
18	3.3 Symbols 4 Data type 4.1 Overview 4.2 Basic data type 4.2.1 Unsigned type coding (UINT) Tables Table 1 – Unsigned type data coding
19	4.2.2 Time type coding (TIMEV) 4.2.3 Date type coding (DATE2000) Table 2 – UINT16 type data coding Table 3 – TIMEV type data coding Table 4 – DATE2000 type coding
20	4.2.4 Time of day type coding (TIMEOFDAY) 4.2.5 Time difference type coding (TIMEDIFFER) 4.2.6 String type coding (STRING) Table 5 – TIMEOFDAY type coding Table 6 – TIMEDIFFER type coding Table 7 – STRING type data coding
21	4.2.7 Bitmap tpye coding (BITMAP) 4.3 Complex type 4.3.1 Struct type coding (STRUCT) 4.3.2 Array type coding (ARRAY) 5 AUTBUS overview 5.1 Overview Figures Figure 1 – BITMAP data type
22	5.2 AUTBUS protocol stack architecture Figure 2 – Corresponding relationship between AUTBUSprotocol stack and OSI reference model
23	Figure 3 – AUTBUS protocol stack architecture
24	5.3 Device type 5.3.1 Overview 5.3.2 Control Device 5.3.3 Field Device 5.3.4 Management Node 5.3.5 Terminal Node 5.4 Network topology
25	6 System management 6.1 Overview 6.2 System management process Figure 4 – AUTBUS network topology
26	6.3 System management information table 6.3.1 PhL related management information table Figure 5 – AUTBUS system management process
27	Table 8 – Physical device configuration information table
28	Table 9 – System configuration related information table
29	Table 10 – PhL synchronization management information table
30	Table 11 – System diagnosis and maintenance related information table
31	Table 12 – Physical communication resource management information table
33	6.3.2 DLL related management information table Figure 6 – Resource block information structure Table 13 – Protocol stack version management information table
34	Table 14 – Link node management information table
35	Table 15 – Link timeout management information table
36	6.3.3 AL related management information table Table 16 – Time management information table
37	Table 17 – Network management information table
38	7 Physical layer 7.1 Physical Layer overview
39	7.2 PhL resource 7.2.1 Signal frame Figure 7 – AUTBUS Physical Layer model
40	Figure 8 – AUTBUS SF and OFDM symbol
41	7.2.2 Data subframe Figure 9 – SF structure
42	7.2.3 OFDM symbol Figure 10 – Carrier mode A and carrier mode B of data subframe Figure 11 – OFDM symbol structure of PhL
43	7.2.4 Code Block 7.2.5 Resource element Figure 12 – OFDM timing structure Figure 13 – DLPDU and CB
44	7.2.6 Working mode Figure 14 – Resource element schematic diagram Table 18 – AUTBUS TMs and corresponding parameters
45	Table 19 – Working mode under carrier mode A
46	7.3 DLL–PhL interface 7.3.1 General Figure 15 – Mapping between data units across the DLL-PhL interface Table 20 – Working mode under carrier mode B
47	7.3.2 Service primitive Table 21 – Ph-Param service primitives and parameters Table 22 – Ph-Param service primitive parameter description Table 23 – Ph-Data service primitives and parameters
48	Table 24 – Ph-Data service primitive parameter description Table 25 – Ph-Clock-Sync service primitives and parameters Table 26 – Ph-Clock-Sync service primitive parameter description
49	7.3.3 Primitive process 7.4 System management-PhL interface 7.4.1 General 7.4.2 Service primitive Figure 16 – DLL-PhL interface service primitive process
50	Table 27 – Ph-RESET primitives and parameters Table 28 – Ph-RESET service primitive parameter description Table 29 – Ph-SET-VALUE primitives and parameters Table 30 – Ph-SET-VALUE primitive parameter status description Table 31 – Ph-GET-VALUE service primitives and parameters
51	7.4.3 Primitive process Table 32 – Ph-EVENT service primitive and parameters Table 33 – Ph-SYNC service primitives and parameters
52	7.5 DCE Independent Sublayer (DIS) 7.5.1 General 7.5.2 Data sequence Figure 17 – System management-PhL interface primitive process
53	7.6 DTE-DCE interface 7.6.1 General 7.6.2 Interface signal
54	7.6.3 Signal process 7.7 Medium Dependent Sublayer (MDS) 7.7.1 General 7.7.2 MDS specification Figure 18 – DTE-DCE interface signal process
55	Figure 19 – PhL channel process Figure 20 – Scrambling sequence generation
56	Table 34 – RS code mode
57	Figure 21 – Convolutional encoder with a code rate of 1/2 Figure 22 – Bit deletion process with code rates 2/3 and 3/4 Table 35 – Convolutional code mode
58	Table 36 – Bit interleaving parameters
59	Figure 23 – Generation of m sequence Table 37 – OFDM configuration parameters
60	Figure 24 – OFDM symbol structure diagram Table 38 – Modulation Coding Scheme in carrier mode A Table 39 – Modulation Coding Scheme in carrier mode B
61	7.8 MDS-MAU interface 7.8.1 General 7.8.2 MDS-MAU interface Table 40 – Minimum services at MDS-MAU interface
62	Figure 25 – MDS-MAU interface service process diagram
63	Figure 26 – Signal spectrum template Table 41 – Allowable constellation diagram errors in different modulation modes
64	7.9 Medium Attachment Unit (MAU) 7.9.1 Overview 7.9.2 Electrical specifications 7.9.3 Transmission Medium Interface Table 42 – System transmission parameters Table 43 – Transmission medium interface
65	7.9.4 Medium
66	Figure 27 – Connector of the shielded twisted pair Figure 28 – Terminal resistor
67	8 Data-link layer 8.1 General 8.1.1 DLL protocol architecture Figure 29 – DLL in AUTBUS protocol stack architecture
68	Figure 30 – Relationship of AUTBUS DLL to other filedbus layers and to users of AUTBUS DLS Figure 31 – AUTBUS DLL protocol architecture diagram
69	8.1.2 DLL working mechanism Table 44 – NodeID address assignment of AUTBUS DLL
70	Table 45 – NodeID and MAC address mapping Table 46 – Members of Multicast Group Mapping Table Description
71	Figure 32 – Resource mapping between DLL and PhL
72	8.2 DLL services 8.2.1 General Figure 33 – DLL resource mapping message queue scheduling diagram
73	8.2.2 Data-link service model
74	8.2.3 Data-link service description
75	Figure 34 – Primitive process of CLMDTA
76	Table 47 – CLMDTA service primitives and parameters Table 48 – CLMDTA service primitive parameter description
77	Figure 35 – Primitive process of CLMDTNA
78	Table 49 – CLMDTNA service primitives and parameters Table 50 – CLMDTNA service primitive parameter description
79	Figure 36 – Primitive process of CLMDTRA
80	Table 51 – CLMDTRA service primitives and parameters Table 52 – CLMDTRA service primitive parameter description
81	Figure 37 – Primitive process of CLMDTRRNA
82	Table 53 – CLMDTRRNA service primitives and parameters Table 54 – CLMDTRRNA service primitive parameter description
83	Figure 38 – Primitive process of CMDTA
84	Table 55 – CMDTA service primitives and parameters Table 56 – CMDTA service primitive parameter description
85	Figure 39 – Primitive process of CMDTNA
86	Table 57 – CMDTNA service primitives and parameters Table 58 – CMDTNA service primitive parameter description
87	8.2.4 Data-link management service description Table 59 – DLS status output value description
88	Figure 40 – Data-link config management service primitive process Table 60 – Data-link config management service Table 61 – Data-link config management service primitive parameter description
89	Table 62 – CFG_PARAM_INFO structure description
90	Table 63 – TIMEOUT_CFG structure description Table 64 – GROUP_IDMAP_S structure description Table 65 – NODEID_MAC_S structure description
91	Table 66 – COMM_RES_CFG structure description
92	Figure 41 – TN active logout discovery service primitive process Figure 42 – Data-link discovery management service primitive sequence diagram
93	Table 67 – Data-link discovery service primitives and parameters Table 68 – Data-link discovery management service primitive parameter description
94	Table 69 – NODE_MGT_INFO_S structure description
95	Figure 43 – Local data-link maintenance service primitive process diagram Figure 44 – Remote data-link maintenance service primitive process diagram
96	Table 70 – Data-link maintenance service primitives and parameters Table 71 – Data-link maintenance service primitive parameter description Table 72 – DIAG_INFO_S structure member parameter description
98	Figure 45 – Data-link establish management service primitive process Table 73 – Data-link establish management service primitives and parameters Table 74 – Data-link establish management service parameter description
99	Table 75 – CH_RES_INFO_S structure member description
100	Figure 46 – Data-link release management service primitive sequence diagrame Table 76 – Data-link release management service primitives and parameters
101	Table 77 – Data-link release management service primitive parameter description
102	Figure 47 – Data-link update management service primitive sequence diagram Table 78 – Data-link update management service primitives and parameters Table 79 – Data-link update management service primitive parameter description
103	8.2.5 Clock synchronization service description Table 80 – DLMS status return value description
104	Figure 48 – Delay measurement service primitive process Table 81 – Delay measurement service primitives and parameters
105	Table 82 – Delay measurement service primitive parameter description
106	Figure 49 – Clock synchronization service primitive process Table 83 – Clock synchronization service primitives and parameters
107	Table 84 – Clock synchronization service primitive parameter description
108	Figure 50 – Clock interrupt service primitive process Table 85 – Clock interrupt service primitives and parameters Table 86 – Clock interrupt service primitive parameter description
109	8.3 DLL protocol 8.3.1 Working procedure Table 87 – DLCSS status return value description
110	Figure 51 – Resource mapping configuration diagram
111	Figure 52 – Initial access configuration procedure diagram
112	Figure 53 – The random access configuration procedure diagram
114	Figure 54 – Node leave procedure diagram
115	Figure 55 – DLS data sending procedure diagram
116	Figure 56 – DLS data receiving procedure diagram
117	Figure 57 – Clock synchronization delay measurement procedure diagram Figure 58 – Clock register structure diagram
118	8.3.2 DLPDU structure Figure 59 – Clock synchronization procedure Figure 60 – Universal DLPDU structure
119	Figure 61 – Basic configuration DLPDU structure
120	Figure 62 – General configuration block structure
121	Figure 63 – Address assignment DLPDU structure
122	Figure 64 – Multicast assignment DLPDU structure
123	Figure 65 – Resource allocation DLPDU structure
124	Figure 66 – Access notification DLPDU structure
125	Figure 67 – Resource application DLPDU structure
126	Figure 68 – Resource release DLPDU structure
127	Figure 69 – Status query DLPDU structure Figure 70 – Status response DLPDU
128	Figure 71 – Announcement DLPDU structure
130	Figure 72 – Clock synchronization DLPDU structure
131	8.3.3 State machine Figure 73 – Common DLPDU structure
132	Figure 74 – DLDE state machine
133	Table 88 – DLDE state transition description
134	Figure 75 – DLME state machine
135	Figure 76 – DLCE state machine Table 89 – DLME state machine state transition description
136	8.3.4 Error handling Table 90 – DLCE state machine state transition description
138	9 Application Layer 9.1 Overview 9.1.1 Protocol architecture Figure 77 – AL in AUTBUS protocol stack architecture Figure 78 – Relationship of AUTBUS AL to other fieldbus layersand to users of AUTBUS application service
139	9.1.2 Data type of AL Figure 79 – Diagram of AUTBUS AL protocol architecture
140	Table 91 – Description of time information structure TIMEINFO_S Table 92 – Description of clock option information structure CLOCK_OPTION_INFO_S
141	Table 93 – Description of network configuration parameter structure NETWORK_CFG_PARA_S Table 94 – Description of MAC mapping table NETWORKID_MAC_MAP_TABLE_S
142	9.1.3 Data mapping modeling Table 95 – Description of IP mapping table structure IP_MAP_TABLE_S
143	Figure 80 – Data mapping modeling object structure
144	Figure 81 – Diagram of mapping data buffers and service data variables Table 96 – Service data mapping table parameter list
145	9.1.4 Communication model Figure 82 – Diagram of P/S model Figure 83 – P/S model of PUSH mode
146	9.2 AL Service 9.2.1 Overview Figure 84 – P/S model of PULL mode Figure 85 – Diagram of C/S communication model
147	9.2.2 Application Service Elements Table 97 – Communication models supported by AUTBUS AL ASEs Table 98 – Application service interface return value list
148	Table 99 – RT Data service interface parameters
149	Figure 86 – RT data transmission model
150	Table 100 – nRT data service interface parameters
151	Figure 87 – Diagram of nRT data request pesponse model Figure 88 – Diagram of nRT data AP interaction based on C/S communication model
152	Figure 89 – Diagram of nRT data AP interaction based on P/S communication model
153	Table 101 – Timing service interface parameters
154	Figure 90 – Time synchronization application interaction pocess
155	Figure 91 – Time query fow
156	Table 102 – Resource service interface parameters
157	Figure 92 – Resource AP interaction based on C/S communication model Figure 93 – Resource ASE local service function Diagram
158	Figure 94 – NETWORKID identification field structure
159	Table 103 – Addressing service interface parameters
160	Figure 95 – NETWORKID interaction process diagram Figure 96 – Diagram of MAC mapping table service function
161	Figure 97 – IP mapping table service function diagram Figure 98 – AUTBUS AL data message is mapped to IP payload data payload
162	Figure 99 – AUTBUS AL protocol header and IP protocol header mapping Figure 100 – IP data message is mapped to valid data of AUTBUS AL data message
163	Table 104 – Management service interface parameters
165	Figure 101 – Static configuration initialization process Figure 102 – Join the network interaction process
167	Figure 103 – Passively exit the network interaction process Figure 104 – Actively exit network interaction process
168	Figure 105 – Diagram of diagnostic object mapping
169	Figure 106 – Diagram of the logging process Figure 107 – A physical bus divided into two virtual bus domain diagrams
170	Table 105 – Virtual service interface parameters
171	9.2.3 Application service Figure 108 – Diagram of virtualized AP interaction based on C/S communication model Figure 109 – Virtualization ASE local implementation diagram
172	Table 106 – Read service parameters Table 107 – Write service parameters
173	9.3 Specification for AL protocol 9.3.1 Overview 9.3.2 Message format Figure 110 – AL protocol message header structure Table 108 – Application service errcode description
174	Table 109 – AL service type flag encoding
175	Figure 111 – Message structure of multiple DTUs
176	Figure 112 – Transmission unit message format Figure 113 – Time service notification message structure
178	9.3.3 State machine Figure 114 – System management data message format
179	Figure 115 – Diagram of state transition of publisher state machine Table 110 – State transition table of publisher state machine
180	Table 111 – State transition table of subscriber state machine
181	Figure 116 – Diagram of state transition of subscriber state machine Table 112 – State transition table of client state machine
182	Figure 117 – Diagram of state transition of client state machine Figure 118 – Diagram of transition state of server state machine Table 113 – State transition table of server state machine
183	Figure 119 – Diagram of transition state of ALCE state machine Table 114 – State transition table of ALCE state machine
184	Figure 120 – Diagram of transition state of ALDE state machine Table 115 – State transition table of ALDE state machine
185	Figure 121 – Diagram of state transition for ALME state machine Table 116 – State transition table of ALME state machine
186	Annex A (informative)Example of data subframe allocation A.1 Example A Figure A.1 – Resource allocation example A
187	A.2 Example B Figure A.2 – Resource allocation example B
188	A.3 Example C Figure A.3 – Resource allocation example C
189	Annex B (normative)RS code generating polynomial Table B.1 – RS code (255,247) generating polynomial Table B.2 – RS code (255,239) generating polynomial Table B.3 – RS code (255,223) generating polynomial
190	Annex C (informative)Example for NodeID and MAC address mapping Table C.1 – Example of NodeID and MAC address mapping table saved on TN
191	Annex D (informative)Example for multicast group working mechanism Figure D.1 – Multicast working mechanism diagram
192	Annex E (informative)Example of service data mapping DTU message Figure E.1 – Data transmission unit message content example
193	Annex F (informative)Example of OPC UA data model and AUTBUS data model mapping Figure F.1 – OPC UA data model and mapping of AUTBUS data model
194	Annex G (informative)Example of RTA service processing Figure G.1 – Example of RTA service processing
195	Annex H (informative)AUTBUS virtualization solution example Figure H.1 – Diagram of AUTBUS industrial bus service deployment Figure H.2 – Diagram of networking topology based on the virtualized bus
196	Figure H.3 – Virtual network topology based on logical business function RT1
197	Table H.1 – Virtual bus environment node NETWORKID list
198	Bibliography

Published By	Publication Date	Number of Pages
BSI	2020	200


PDF Format	Searchable	Printable	Preview Now

Status	Definitive
Pages	200
Publication Date	2020-01-23
ISBN	978 0 539 05718 8
Standard Number	PD IEC PAS 63256:2020
Title	Industrial communication networks. Broadband fieldbus specification. Autbus
Identical National Standard Of	IEC PAS 63256:2020
Descriptors	Communication networks, Industrial, Broadband networks, Coding (data conversion), Interfaces (data processing), Fieldbus
Publisher	BSI
Committee	GEL/65/3
ICS Codes	33.040.40 - Data communication networks

BSI PD IEC PAS 63256:2020

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