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BS EN 61784-3-14:2010

BS EN 61784-3-14:2010

$215.11

Industrial communication networks. Profiles – Functional safety fieldbuses. Additional specifications for CPF 14

Published By Publication Date Number of Pages
BSI 2010 78
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IEC 61784-3-14:2010 specifies a safety communication layer (services and protocol) based on CPF 14 of IEC 61784-2 and IEC 61158 Type 14. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This bilingual version (2012-02) corresponds to the monolingual English version, published in 2010-06.

PDF Catalog

PDF Pages PDF Title
7 CONTENTS
11 0 Introduction
0.1 General
Figures
Figure 1 – Relationships of IEC 61784-3 with other standards (machinery)
12 Figure 2 – Relationships of IEC 61784-3 with other standards (process)
13 0.2 Patent declaration
14 1 Scope
2 Normative references
15 3 Terms, definitions, symbols, abbreviated terms and conventions
3.1 Terms and definitions
19 3.2 Symbols and abbreviated terms
20 3.3 Conventions
21 4 Overview of FSCP 14/1 (EPASafety®)
4.1 EPASafety®
4.2 Principle of EPA safety communications
22 4.3 Safety function processing
5 General
5.1 External documents providing specifications for the profile
Figure 3 – Safety communication architecture
Figure 4 – Safety function processing
23 5.2 Safety functional requirements
5.3 Safety measures
24 5.4 Safety communication layer structure
Tables
Table 1 – Relationships between errors and safety measures
25 Figure 5 – Standard communication and safety communication
26 5.5 Relationships with FAL (and DLL, PhL)
Figure 6 – CP 14/1 protocol hierarchy
Figure 7 – Relationship between the SCL and the other layers of CP 14/1
27 6 Safety communication layer services
6.1 Overview
6.2 FSCP 14/1 object extensions
Table 2 – Data types used within FSCP 14/1
Table 3 – FSCP 14/1 object extensions
33 6.3 Extended services
34 Table 4 – Functional safety service extension
Table 5 – SafetyCommunicationOpen Service Parameters
36 Table 6 – SafetyCommunicationClose Service Parameters
37 7 Safety communication layer protocol
7.1 Safety PDU format
Figure 8 – Functional safety communication message structure
Table 7 – Encoding of APDU Header
38 Figure 9 – Structure of Functional Safety PDU (FSPDU)
Figure 10 – Structure of Virtual Safety Check Message (VSCM)
Table 8 – Structure of Functional Safety PDU (FSPDU) Header
39 7.2 Safety communication operation
Figure 11 – FSPDU mapping
40 Table 9 – CRC calculation polynomials
41 Figure 12 – Time-sharing communication scheduling
42 7.3 Safety communication behaviour
Figure 13 – Format of EndofNonPeriodicDataSending PDU
43 Figure 14 – State transfer figure of periodic data transmission
Table 10 – Functional safety communication state description
Table 11 – States and transitions of periodic data transmission
44 Figure 15 – Functional safety communication state transfer
45 Table 12 – Functional safety communication states description
Table 13 – States and transitions of non-periodic data transmission
49 Figure 16 – Communication alert report state transfer figure
50 Table 14 – Communication alert state description
Table 15 – Communication alert states and transitions
52 Table 16 – LinkObjectType function description
Table 17 – CRCCheck function description
53 Table 18 – CrossCheck function description
Table 19 – TimeDelayCheck function description
Table 20 – PeriodUncomfrimedSNCheck function description
Table 21 – Non-periodicSNCheck function description
54 7.4 Code
Table 22 – Functional safety communication management object encoding
Table 23 – Functional safety link object encoding
56 Table 24 – Functional safety communication alert object encoding
59 Table 25 – Encoding of SafetyCommunicationOpen request parameters
Table 26 – SafetyCommunicationOpen positive response parameters
60 Table 27 – SafetyCommunicationOpen negative response parameters
Table 28 – SafeCommunicationClose request parameters
Table 29 – SafeCommunicationClose positive response parameters
Table 30 – SafeCommunicationClose negative response parameters
61 Table 31 – Error class and code
62 8 Safety communication layer management
8.1 Time synchronization diagnostics
Figure 17 – CRC check for time synchronization process
63 8.2 CSME diagnostics
64 8.3 Communication fault management
Table 32 – Communication process of confirmed service between two devices
66 Figure 18 – The process of communication fault report
67 9 System requirements
9.1 Indicators and switches
9.2 Installation guidelines
9.3 Safety function response time
Figure 19 – Example application for FSCP 14/1 communication
68 Figure 20 – Calculation of the network reaction time
Table 33 – Settings for time expectation margin
69 9.4 Duration of demands
9.5 Constraints for calculation of system characteristics
70 9.6 Maintenance
9.7 Safety manual
10 Assessment
Table 34 – Constraints for system characteristics at ε = 10-2
71 Annex A (informative) Additional information for functional safety communication profiles of CPF 14
73 Annex B (informative) Information for assessment of the functional safety communication profiles of CPF 14
74 Bibliography

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BS EN 61784-3-14:2010
$215.11