BS EN 61784-3-8:2010
$189.07
Industrial communication networks. Profiles – Functional safety fieldbuses. Additional specifications for CPF 8
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 50 |
This part of the IEC 61784-3 series specifies a safety communication layer (services and protocol) based on CPF 8 of IEC 61784-1 and IEC 61158 Type 18. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer.
NOTE 1 It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres.
This part 1 defines mechanisms for the transmission of safety-relevant messages among participants within a distributed network using fieldbus technology in accordance with the requirements of IEC 61508 series2 for functional safety. These mechanisms may be used in various industrial applications such as process control, manufacturing automation and machinery.
This part provides guidelines for both developers and assessors of compliant devices and systems.
NOTE 2 The resulting SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system ā implementation of a functional safety communication profile according to this part in a standard device is not sufficient to qualify it as a safety device.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | CONTENTS |
| 10 | INTRODUCTION Figures Figure 1 ā Relationships of IEC 61784-3 with other standards (machinery) |
| 11 | Figure 2 ā Relationships of IEC 61784-3 with other standards (process) |
| 13 | 1 Scope 2 Normative references |
| 14 | 3 Terms, definitions, symbols, abbreviated terms and conventions 3.1 Terms and definitions |
| 19 | 3.2 Symbols and abbreviated terms |
| 20 | 3.3 Conventions 4 Overview of FSCPĀ 8/1 (CC-Link Safetyā¢) |
| 21 | 5 General 5.1 External documents providing specifications for the profile 5.2 Safety functional requirements 5.3 Safety measures |
| 22 | Tables TableĀ 1 ā Selection of the various measures for possible errors |
| 23 | 5.4 Safety communication layer structure |
| 24 | 5.5 Relationships with FAL (and DLL, PhL) 6 Safety communication layer services 6.1 General 6.2 SASEs FigureĀ 3 ā Relationship between SCL and the other layers of IECĀ 61158Ā TypeĀ 18 |
| 25 | 6.3 SARs |
| 26 | 6.4 Process data SAR ASEs |
| 27 | 7 Safety communication layer protocol 7.1 Safety PDU format TableĀ 2 ā M1 safety device manager attribute format TableĀ 3 ā S1 safety device manager attribute format TableĀ 4 ā M1 safety connection manager attribute format |
| 28 | TableĀ 5 ā S1 safety connection manager attribute format TableĀ 6 ā M1 safety cyclic transmission attribute format |
| 29 | TableĀ 7 ā S1 safety cyclic transmission attribute format TableĀ 8 ā M1 safety device manager attribute encoding |
| 30 | TableĀ 9 ā S1 safety device manager attribute encoding TableĀ 10 ā M1 safety connection manager attribute encoding TableĀ 11 ā S1 safety connection manager attribute encoding |
| 31 | TableĀ 12 ā M1 safety cyclic transmission attribute encoding |
| 32 | TableĀ 13 ā S1 safety cyclic transmission attribute encoding |
| 33 | 7.2 State description |
| 34 | FigureĀ 4 ā State diagram |
| 36 | TableĀ 14 ā Safety master monitor timer operation TableĀ 15 ā Safety slave monitor timer operation TableĀ 16 ā Safety data monitor timer operation |
| 37 | 8 Safety communication layer management 8.1 General |
| 38 | 8.2 Connection establishment and confirmation processing 8.3 Safety slave verification TableĀ 17 ā Details of connection establishment and confirmation processing TableĀ 18 ā Details of slave information verification processing |
| 39 | 9 System requirements 9.1 Indicators and switches TableĀ 19 ā Details of safety slave parameter transmission processing TableĀ 20 ā Monitor LEDs |
| 40 | 9.2 Installation guidelines 9.3 Safety function response time |
| 41 | TableĀ 21 ā Safety function response time calculation TableĀ 22 ā Safety function response time definition of terms |
| 42 | 9.4 Duration of demands 9.5 Constraints for calculation of system characteristics TableĀ 23 ā Number of occupied slots and safety data |
| 43 | 9.6 Maintenance 9.7 Safety manual TableĀ 24 ā Residual error rate Ī (occupied slots = 1) TableĀ 25 ā Residual error rate Ī (occupied slots = 2) |
| 44 | 10 Assessment |
| 45 | Annex A (informative) Additional information for functional safety communication profiles of CPF 8 |
| 46 | Annex B (informative) Information for assessment of the functional safety communication profiles of CPF 8 |
| 47 | Bibliography |
