DIN EN 61158-6-16-2008 工业通讯网络.现场总线规范.第6-16部分:应用层协议规范.16型元件.仅为CD-ROM
Industrial communication networks - Fieldbus specifications - Part 6-16: Application layer protocol specification - Type 16 elements (IEC 61158-6-16:2007); English version EN 61158-6-16:2008, only on CD-ROM
DIN EN 61158-6-2005DIN EN 61158-600-2006DIN EN 61491-1999
适用范围
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 16 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.
This standard define in an abstract way the externally visible service provided by the different
Types of fieldbus Application Layer in terms of
• an abstract model for defining application resources (objects) capable of being manipulated by
users via the use of the FAL service,
• the primitive actions and events of the service;
• the parameters associated with each primitive action and event, and the form which they take;
and
• the interrelationship between these actions and events, and their valid sequences.
The purpose of this standard is to define the services provided to
• the FAL user at the boundary between the user and the Application Layer of the Fieldbus
Reference Model, and
• Systems Management at the boundary between the Application Layer and Systems Management
of the Fieldbus Reference Model.
This standard specifies the structure and services of the IEC fieldbus Application Layer, in
conformance with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI Application Layer
Structure (ISO/IEC 9545).
The principal objective of this standard is to specify the syntax and behavior of the application layer
protocol that conveys the application layer services defined in IEC 61158-5-16.
A secondary objective is to provide migration paths from previously-existing industrial
communications protocols. It is this latter objective which gives rise to the diversity of protocols
standardized in subparts of IEC 61158-6.