DD IEC PAS 61784-3-18 : DRAFT SEP 2009

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols, abbreviated terms and
   conventions
   3.1 Terms and definitions
       3.1.1 Common terms and definitions
       3.1.2 CPF X: Additional terms and definitions
   3.2 Symbols and abbreviated terms
       3.2.1 Common symbols and abbreviated terms
       3.2.2 CPF SNpFAMILY: Additional abbreviated terms
       3.2.3 CPF SNpFAMILY: Additional symbols
   3.3 Conventions
4 Overview of FSCP SNpFAMILY/1 (SafetyNET p[TM])
5 General
   5.1 External documents providing specifications for the
       profile
   5.2 Safety functional requirements
   5.3 Safety measures
   5.4 Safety communication layer structure
   5.5 Relationships with FAL (and DLL, PhL)
       5.5.1 General
       5.5.2 Data Types
6 Safety communication layer services
   6.1 General elements
       6.1.1 General
       6.1.2 Safe object dictionary
       6.1.3 Safe process data object (SPDO)
       6.1.4 Safe heartbeat (SHB)
       6.1.5 Safe delay monitoring (SDM)
   6.2 Communication relation
7 Safety communication layer protocol
   7.1 Safety PDU formats
       7.1.1 Safe process data objects (SPDO)
       7.1.2 Safe heartbeat (SHB)
       7.1.3 Safety PDUs embedded in a Type SNpTYPE PDU
   7.2 Safe application layer management (SALMT)
   7.3 Safe process data communication
   7.4 Safe heartbeat
   7.5 Delay monitoring
8 Safety communication layer management
   8.1 Parameter handling
   8.2 Object dictionary
       8.2.1 General
       8.2.2 Communication profile section
       8.2.3 Standardized device profile section
   8.3 Device description
9 System requirements
   9.1 Indicators and switches
       9.1.1 Indicator states and flash rates
       9.1.2 Indicators
       9.1.3 Switches
   9.2 Installation guidelines
   9.3 Safety function response time
       9.3.1 General
       9.3.2 Determination of FSCP SNpFAMILY time expectation
             behavior
       9.3.3 Calculation of the worst case safety function
             response time
   9.4 Duration of demands
   9.5 Constraints for calculation of system characteristics
       9.5.1 Safety related constraints
       9.5.2 Probabilistic considerations
   9.6 Maintenance
   9.7 Safety manual
10 Certification
Bibliography

Defines a safety communication layer (services and protocol) based on CPF SNpFAMILY of IEC/PAS 62633 and IEC/PAS 61158 Type SNpTYPE. It also identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer.