IEC 61158-6-12:2007
(Main)Industrial communication networks - Fieldbus specifications - Part 6-12: Application layer protocol specification - Type 12 elements
Industrial communication networks - Fieldbus specifications - Part 6-12: Application layer protocol specification - Type 12 elements
It provides user programs with a means to access the fieldbus communication environment. In this respect, the FAL can be viewed as a "window between corresponding application programs." This standard provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 2 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. It includes the following significant changes from the previous edition deletion of the former Type 6 fieldbus for lack of market relevance; addition of new types of fieldbuses; partition of part 6 of the third edition into multiple parts numbered.
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IEC 61158-6-12
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-12: Application layer protocol specification – Type 12 elements
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IEC 61158-6-12
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-12: Application layer protocol specification – Type 12 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XF
ICS 35.100.70; 25.040.40 ISBN 2-8318-9487-5
– 2 – 61158-6-12 © IEC:2007(E)
CONTENTS
FOREWORD.7
INTRODUCTION.9
1 Scope.10
1.1 General .10
1.2 Specifications .11
1.3 Conformance.11
2 Normative references.11
3 Terms, definitions, symbols, abbreviations and conventions .12
3.1 Reference model terms and definitions .12
3.2 Service convention terms and definitions .12
3.3 Application layer definitions.13
3.4 Common symbols and abbreviations .18
3.5 Additional symbols and abbreviations.18
3.6 Conventions .19
4 Application Layer protocol specification.24
4.1 Operating principle .24
4.2 Node reference model .24
5 FAL syntax description.26
5.1 Coding principles .26
5.2 Data types and encoding rules .26
5.3 AR coding.29
5.4 SII coding .34
5.5 Isochronous PDI coding.39
5.6 CoE coding.42
5.7 EoE coding.79
5.8 FoE Coding .88
6 FAL protocol state machines.94
6.1 Overall structure .94
6.2 AP-Context state machine .96
6.3 FAL service protocol machine (FSPM) .96
6.4 Application Relationship Protocol Machines (ARPMs).96
6.5 DLL mapping protocol machine (DMPM) . 135
Bibliography . 136
Figure 1 – Common structure of specific fields .20
Figure 2 – Type description example .21
Figure 3 – Slave Node Reference Model.25
Figure 4 – Encoding of Time Of Day value.26
Figure 5 – Encoding of Time Difference value.27
Figure 6 – AL Control Request structure.29
Figure 7 – AL Control Response structure .30
Figure 8 – AL State Changed structure .32
Figure 9 – PDI Control type description .32
Figure 10 – Sync Configuration type description .33
61158-6-12 © IEC:2007(E) – 3 –
Figure 11 – Distributed Clock sync and latch type description .39
Figure 12 – CoE general structure .42
Figure 13 – SDO Download Expedited Request structure.43
Figure 14 – SDO Download Expedited Response structure .44
Figure 15 – SDO Download Normal Request structure.45
Figure 17 – Download SDO Segment Request structure .47
Figure 18 – Download SDO Segment Response structure.47
Figure 19 – SDO Upload Expedited Request structure .48
Figure 20 – SDO Upload Expedited Response structure .49
Figure 22 – SDO Upload Normal Response structure.50
Figure 23 – Upload SDO Segment Request structure.51
Figure 24 – Upload SDO Segment Response structure .52
Figure 25 – Abort SDO Transfer Request structure.53
Figure 26 – SDO Information Service structure.55
Figure 27 – Get OD List Request structure .56
Figure 28 – Get OD List Response structure.57
Figure 29 – Get Object Description Request structure.58
Figure 30 – Get Object Description Response structure.59
Figure 31 – Get Entry Description Request structure.60
Figure 32 – Get Entry Description Response structure .61
Figure 33 – SDO Info Error Request structure .63
Figure 34 – EoE general structure .79
Figure 35 – EoE Timestamp structure.80
Figure 36 – EoE Fragment Request structure .81
Figure 37 – Set IP Parameter Request structure.83
Figure 38 – Set IP Parameter Response structure .85
Figure 39 – Set Address Filter Request structure.86
Figure 40 – Set Address Filter Response structure .88
Figure 41 – Read Request structure .89
Figure 42 – Write Request structure .89
Figure 43 – Data Request structure .90
Figure 44 – Ack Request structure .91
Figure 45 – Error Request structure.92
Figure 46 – Busy Request structure.94
Figure 47 – Relationship among Protocol Machines .95
Figure 48 – AR Protocol machines .96
Figure 49 – ESM Diagramm .98
Table 1 – PDU element description example.21
Table 2 – Example attribute description .22
Table 3 – State machine description elements .22
Table 4 – Description of state machine elements .23
Table 5 – Conventions used in state machines .23
– 4 – 61158-6-12 © IEC:2007(E)
Table 6 – Transfer Syntax for bit sequences.27
Table 7 – Transfer syntax for data type Unsignedn .28
Table 8 – Transfer syntax for data type Integern.29
Table 9 – AL Control Description .30
Table 10 – AL Control Response .30
Table 11 – AL Status Codes .31
Table 12 – AL State Changed.32
Table 13 – PDI Control.33
Table 14 – PDI Configuration .33
Table 15 – Sync Configuration.33
Table 16 – Slave Information Interface Area .34
Table 17 – Slave Information Interface Categories.
...
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