1、 IEC 61158-4-12 Edition 3.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Fieldbus specifications Part 4-12: Data-link layer protocol specification Type 12 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 4-12: Spcification
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20、IONALE Industrial communication networks Fieldbus specifications Part 4-12: Data-link layer protocol specification Type 12 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 4-12: Spcification du protocole de la couche liaison de donnes lments de type 12 INTERNATION
21、AL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XG ICS 25.040.40; 35.100.20; 35.110 PRICE CODE CODE PRIX ISBN 978-2-8322-1724-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make
22、sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 61158-4-12:2014 IEC 2014 CONTENTS FOREWORD . 7 NTRODUCTION 9 1 Scope . 10 1.1 General . 10 1.2 Specifications 1
23、0 1.3 Procedures 10 1.4 Applicability . 10 1.5 Conformance . 10 2 Normative references . 11 3 Terms, definitions, symbols, abbreviations and conventions . 11 3.1 Reference model terms and definitions 11 3.2 Service convention terms and definitions . 12 3.3 Common terms and definitions 13 3.4 Additio
24、nal Type 12 definitions 13 3.5 Common symbols and abbreviations . 16 3.6 Additional Type 12 symbols and abbreviations 17 3.7 Conventions 18 4 Overview of the DL-protocol . 23 4.1 Operating principle 23 4.2 Topology . 23 4.3 Frame processing principles 23 4.4 Data-link layer overview 24 4.5 Error det
25、ection overview 25 4.6 Node reference model . 25 4.7 Operation overview . 26 5 Frame structure 27 5.1 Frame coding principles 27 5.2 Data types and encoding rules 27 5.3 DLPDU structure . 29 5.4 Type 12 DLPDU structure 32 5.5 Network variable structure . 48 5.6 Type 12 mailbox structure . 48 6 Attri
26、butes 50 6.1 Management . 50 6.2 Statistics . 65 6.3 Watchdogs 68 6.4 Slave information interface 71 6.5 Media independent interface (MII) . 75 6.6 Fieldbus memory management unit (FMMU) 79 6.7 Sync manager . 82 6.8 Distributed clock 89 7 DL-user memory . 93 7.1 Overview . 93 7.2 Mailbox access type
27、 94 7.3 Buffered access type . 96 IEC 61158-4-12:2014 IEC 2014 3 8 Type 12: FDL protocol state machines . 97 8.1 Overview of slave DL state machines 97 8.2 State machine description . 98 Annex A (informative) Type 12: Additional specifications on DL-Protocol state machines 106 A.1 DHSM . 106 A.2 SYS
28、M 124 A.3 RMSM . 136 Bibliography 140 Figure 1 Type description example 19 Figure 2 Common structure of specific fields 20 Figure 3 Frame structure 24 Figure 4 Mapping of data in a frame . 25 Figure 5 Slave node reference model . 26 Figure 6 Type 12 PDUs embedded in Ethernet frame . 27 Figure 7 Type
29、 12 PDUs embedded in UDP/IP 27 Figure 8 DL information type description 52 Figure 9 Address type description 54 Figure 10 DL control type description . 55 Figure 11 DL status type description 58 Figure 12 Successful write sequence to DL-user control register . 59 Figure 13 Successful read sequence t
30、o the DL-user status register . 60 Figure 14 RX error counter type description . 66 Figure 15 Lost link counter type description . 67 Figure 16 Additional counter type description . 68 Figure 17 Watchdog divider type description 68 Figure 18 DLS-user Watchdog divider type description 69 Figure 19 Sy
31、nc manager watchdog type description . 69 Figure 20 Sync manager watchdog status type description 70 Figure 21 Watchdog counter type description . 71 Figure 22 Slave information interface access type description . 71 Figure 23 Slave information interface control/status type description . 73 Figure 2
32、4 Slave information interface address type description 74 Figure 25 Slave information interface data type description . 75 Figure 26 MII control/status type description 76 Figure 27 MII address type description 78 Figure 28 MII data type description 78 Figure 29 MII access type description 79 Figure
33、 30 FMMU mapping example 80 Figure 31 FMMU entity type description . 81 Figure 32 SyncM mailbox interaction 83 Figure 33 SyncM buffer allocation 83 Figure 34 SyncM buffer interaction 84 4 IEC 61158-4-12:2014 IEC 2014 Figure 35 Handling of write/read toggle with read mailbox . 85 Figure 36 Sync manag
34、er channel type description . 87 Figure 37 Distributed clock local time parameter type description 91 Figure 38 Successful write sequence to mailbox 94 Figure 39 Bad write sequence to mailbox . 95 Figure 40 Successful read sequence to mailbox . 95 Figure 41 Bad read sequence to mailbox . 96 Figure 4
35、2 Successful write sequence to buffer . 96 Figure 43 Successful read sequence to buffer 97 Figure 44 Structuring of the protocol machines of an slave 98 Figure 45 Slave information interface read operation . 100 Figure 46 Slave information interface write operation . 101 Figure 47 Slave information
36、interface reload operation 102 Figure 48 Distributed clock 104 Figure 49 Delay measurement sequence . 105 Table 1 PDU element description example . 19 Table 2 Example attribute description 20 Table 3 State machine description elements 22 Table 4 Description of state machine elements 22 Table 5 Conve
37、ntions used in state machines . 22 Table 6 Transfer Syntax for bit sequences . 28 Table 7 Transfer syntax for data type Unsignedn . 28 Table 8 Transfer syntax for data type Integern . 29 Table 9 Type 12 frame inside an Ethernet frame 30 Table 10 Type 12 frame inside an UDP PDU 30 Table 11 Type 12 fr
38、ame structure containing Type 12 PDUs 31 Table 12 Type 12 frame structure containing network variables . 31 Table 13 Type 12 frame structure containing mailbox 32 Table 14 Auto increment physical read (APRD) 32 Table 15 Configured address physical read (FPRD) . 33 Table 16 Broadcast read (BRD) . 35
39、Table 17 Logical read (LRD) 36 Table 18 Auto Increment physical write (APWR) 37 Table 19 Configured address physical write (FPWR) 38 Table 20 Broadcast write (BWR) 39 Table 21 Logical write (LWR) . 40 Table 22 Auto increment physical read write (APRW) 41 Table 23 Configured address physical read wri
40、te (FPRW) 42 Table 24 Broadcast read write (BRW) 44 Table 25 Logical read write (LRW) . 45 Table 26 Auto increment physical read multiple write (ARMW) . 46 Table 27 Configured address physical read multiple write (FRMW) 47 IEC 61158-4-12:2014 IEC 2014 5 Table 28 Network variable . 48 Table 29 Mailbo
41、x . 49 Table 30 Error Reply Service Data . 49 Table 31 DL information . 52 Table 32 Configured station address 54 Table 33 DL control . 55 Table 34 DL status . 58 Table 35 DLS-user specific registers 60 Table 36 DLS-user event . 62 Table 37 DLS-user event mask 63 Table 38 External event . 64 Table 3
42、9 External event mask 65 Table 40 RX error counter 66 Table 41 Lost link counter 67 Table 42 Additional counter . 68 Table 43 Watchdog divider . 69 Table 44 DLS-user watchdog . 69 Table 45 Sync manager channel watchdog 70 Table 46 Sync manager watchdog Status 70 Table 47 Watchdog counter . 71 Table
43、48 Slave information interface access 71 Table 49 Slave information interface control/status 73 Table 50 Actual slave information interface address 75 Table 51 Actual slave information interface data 75 Table 52 MII control/status . 76 Table 53 Actual MII address. 78 Table 54 Actual MII data 78 Tabl
44、e 55 MII access . 79 Table 56 Fieldbus memory management unit (FMMU) entity 81 Table 57 Fieldbus memory management unit (FMMU) 82 Table 58 Sync manager channel 87 Table 59 Sync manager Structure 89 Table 60 Distributed clock local time parameter . 91 Table 61 Distributed clock DLS-user parameter . 9
45、3 Table A.1 Primitives issued by DHSM to PSM 106 Table A.2 Primitives issued by PSM to DHSM 106 Table A.3 Parameters used with primitives exchanged between DHSM and PSM . 106 Table A.4 Identifier for the octets of a Ethernet frame 107 Table A.5 DHSM state table . 109 Table A.6 DHSM function table .
46、124 Table A.7 Primitives issued by SYSM to DHSM 124 Table A.8 Primitives issued by DHSM to SYSM 125 Table A.9 Primitives issued by DL-User to SYSM . 125 6 IEC 61158-4-12:2014 IEC 2014 Table A.10 Primitives issued by SYSM to DL-User . 125 Table A.11 Parameters used with primitives exchanged between S
47、YSM and DHSM 125 Table A.12 SYSM state table . 127 Table A.13 SYSM function table 136 Table A.14 Primitives issued by RMSM to SYSM . 136 Table A.15 Primitives issued by SYSM to RMSM . 137 Table A.16 Parameters used with primitives exchanged between RMSM and SYSM 137 Table A.17 RMSM state table. 138
48、Table A.18 RMSM function table . 139 IEC 61158-4-12:2014 IEC 2014 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL COMMUNICATION NETWORKS FIELDBUS SPECIFICATIONS Part 4-12: Data-link layer protocol specification Type 12 elements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote inter
