EN 61158-6-17:2008

INTRODUCTION
1 Scope
   1.1 General
   1.2 Specifications
   1.3 Conformance
2 Normative reference
3 Definitions
   3.1 Terms and definitions
   3.2 Abbreviations and symbols
   3.3 Conventions
4 Abstract syntax description
   4.1 FAL PDU abstract syntax
   4.2 Abstract syntax of PDU body
   4.3 PDUs for ASEs
   4.4 Type definitions
   4.5 Data types
5 Transfer syntax
   5.1 Overview of encoding
   5.2 APDU header encoding
   5.3 APDU body encoding
   5.4 Data type encoding rules
6 FAL protocol state machines structure
7 AP-context state machine
8 FAL service protocol machines (FSPMs)
   8.1 General
   8.2 Common parameters of the primitives
   8.3 Variable ASE protocol machine (VARM)
   8.4 Event ASE protocol machine (EVTM)
   8.5 Load region ASE protocol machine (LDRM)
   8.6 Function invocation ASE protocol machine (FNIM)
   8.7 Time ASE protocol machine (TIMM)
   8.8 Network management ASE protocol machine
        (NWMM)
9 Application relationship protocol machines (ARPMs)
   9.1 General
   9.2 Primitive definitions
   9.3 State machine
   9.4 Functions
10 DLL mapping protocol machine (DMPM)
   10.1 General
   10.2 Primitive definitions
   10.3 DMPM state machine
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications
Bibliography

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.