IEC 61158-4-11:2010
(Main)Industrial communication networks - Fieldbus specifications - Part 4-11: Data-link layer protocol specification - Type 11 elements
Industrial communication networks - Fieldbus specifications - Part 4-11: Data-link layer protocol specification - Type 11 elements
IEC 61158-4-11:2010(E) specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider; procedures for giving communications opportunities to all participating DL entities, sequentially and in a cyclic manner for deterministic and synchronized transfer at cyclic intervals up to one millisecond; procedures for giving communication opportunities available for time-critical data transmission together with non-time-critical data transmission without prejudice to the time-critical data transmission; procedures for giving cyclic and acyclic communication opportunities for time-critical data transmission with prioritized access; procedures for giving communication opportunities based on standard ISO/IEC 8802-3 medium access control, with provisions for nodes to be added or removed during normal operation; the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. This second edition cancels and replaces the first edition published in 2007 and constitutes a technical revision. The main changes with respect to the previous edition are:
- Introduction has been modified to add the patents related to the loop-architecture and
- Addition of loop (ring) -architecture.
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IEC 61158-4-11 ®
Edition 2.0 2010-08
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 4-11: Data-link layer protocol specification – Type 11 elements
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IEC 61158-4-11 ®
Edition 2.0 2010-08
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 4-11: Data-link layer protocol specification – Type 11 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XF
ICS 25.04.40; 35.100.20; 35.110 ISBN 978-2-88912-086-4
– 2 – 61158-4-11 © IEC:2010(E)
CONTENTS
FOREWORD.6
INTRODUCTION.8
1 Scope.10
1.1 General .10
1.2 Specifications.10
1.3 Procedures.10
1.4 Applicability.11
1.5 Conformance.11
2 Normative references .11
3 Terms, definitions, symbols and abbreviations.11
3.1 Reference model terms and definitions.11
3.2 Service convention terms and definitions.13
3.3 Terms and definitions .14
3.4 Symbols and abbreviations.18
4 Overview of the DL-protocol .19
4.1 General .19
4.2 Overview of the medium access control.19
4.3 Service assumed from the PhL .21
4.4 DLL architecture.21
4.5 Access control machine and schedule support functions .25
4.6 Local parameters, variables, counters, timers and queues.26
5 General structure and encoding of PhIDU and DLPDU and related elements of
procedure.43
5.1 Overview .43
5.2 PhIDU structure and encoding.43
5.3 Common MAC frame structure, encoding and elements of procedure .44
5.4 Elements of the MAC frame.44
5.5 Order of bit transmission .49
5.6 Invalid DLPDU.49
6 DLPDU-specific structure, encoding and elements of procedure .49
6.1 General .49
6.2 Synchronization DLPDU (SYN).50
6.3 Transmission complete DLPDU (CMP) .55
6.4 In-ring request DLPDU (REQ) .56
6.5 Claim DLPDU (CLM) .57
6.6 Command DLPDU (COM).58
6.7 Cyclic data and cyclic data with transmission complete DLPDU (DT) and
(DT-CMP).59
6.8 RAS DLPDU (RAS) .60
6.9 Loop repeat request DLPDU (LRR) .61
6.10 Loop diagnosis DLPDU (LPD) .65
7 DLE elements of procedure .66
7.1 DLE elements of procedure for star-architecture.66
7.2 DLE elements of procedure for loop-architecture .90
7.3 Serializer and deserializer .123
7.4 DLL management protocol.123
61158-4-11 © IEC:2010(E) – 3 –
Bibliography.134
Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses .15
Figure 2 – Basic principle of medium access control .20
Figure 3 – Interaction of PhS primitives to DLE.21
Figure 4 – Data-link layer internal architecture of star-architecture .23
Figure 5 – Data-link layer internal architecture of loop-architecture.25
Figure 6 – Common MAC frame format for DLPDUs.44
Figure 7 – Structure of FC field.45
Figure 8 – Structure of SYN DLPDU .50
Figure 9 – Structure of CMP DLPDU .55
Figure 10 – Structure of REQ DLPDU .56
Figure 11 – Structure of CLM DLPDU .57
Figure 12 – Structure of COM DLPDU.59
Figure 13 – Structure of DT DLPDU .59
Figure 14 – Structure of RAS DLPDU.60
Figure 15 – Structure of User data of loop-architecture .61
Figure 16 – Structure of LRR DLPDU.62
Figure 17 – Open-ring under control .64
Figure 18 – Structure of LPD DLPDU.65
Figure 19 – Overall structure of DLL .67
Figure 20 – DLE state transition.68
Figure 21 – State transition diagram of CTRC.70
Figure 22 – State transition diagram of STRC .73
Figure 23 – State transition diagram of ACM.77
Figure 24 – State transition diagram of RMC sending and send arbitration.85
Figure 25 – State transition diagram of RMC receiving.88
Figure 26 – Overall structure of DLL .91
Figure 27 – DLE state transition.92
Figure 28 – State transition diagram of CTRC.94
Figure 29 – State transition diagram of STRC .98
Figure 30 – State transition diagram of ACM.102
Figure 31 – State transition diagram of RMC. 112
Figure 32 – State transition diagram of DLM . 126
Figure 33 – State transition diagram of DLM . 130
Table 1 – Data-link layer components of star-architecture.22
Table 2 – Data-link layer components of loop-architecture .24
Table 3 – DLE-variables and permissible values of star-architecture.27
Table 4 – Observable variables and their value ranges of star-architecture.29
Table 5 – DLE variables and permissible values of loop-architecture .30
Table 6 – Observable variables and their value ranges of loop-architecture .32
Table 7 – F-type: DLPDU type .46
– 4 – 61158-4-11 © IEC:2010(E)
Table 8 – FCS length, polynomials and constants .47
Table 9 – PN-parameter: 3rd octet .51
Table 10 – Structure of CW: 4th octet .51
Table 11 – PM parameter .51
Table 12 – RMSEL parameter .52
Table 13 – Structure of CW: 4th octet .52
Table 14 – ST-parameter: 5th octet.52
Table 15 – Th-parameter: 6th, 7th and 8th octets.53
Table 16 – Tm-parameter: 9th and 10th octets.53
Table 17 – Ts-parameter: 11th and 12th octets .53
Table 18 – Tl-parameter: 13th and 14th octets.53
Table 19 – LL parameters: 15th to 46th octets .54
Table 20 – RN parameter.
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