GB/T 20540.3-2006
Digital data communication for measurement and control Fieldbus for use in industrial control systems Type 3: PROFIBUS specification Part 3: Data link layer service definiton (English Version)

Standard No.

GB/T 20540.3-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 20540.3-2006

Scope

1.1 Overview This section provides basic message communication between devices in an automation environment with strict time requirements. The term "time-critical" is used to express that there is a time window within which one or more specified actions required must be completed with some defined level of certainty. Failure to complete the prescribed actions within this time window will result in the failure of applications that require these actions, and even cause equipment, equipment, and possible personal danger. This standard specifies, in an abstract manner, the externally visible services provided by the field bus data link layer in terms of: a) the primitive actions and events of the service; b) the association with each primitive action and event parameters of the association, and the form they take; c) the interrelationships between these actions and events, and their effective sequence. The purpose of this standard is to define the services provided by: a) the fieldbus application layer at the interface between the application layer and the data link layer of the fieldbus reference model; b) the data link layer of the fieldbus reference model System management at the interface between layer and system management. This part defines a service type (DL service), and the corresponding protocol is defined in GB/T 20540.4. The DL service type is a connectionless subset of those services specified in GB/T 17547. 1.2 Specification The main purpose of this standard is to specify the characteristics of conceptual data link services suitable for time-critical communications, thereby complementing the OSI Basic Reference Model to guide the development of data-link protocols for time-critical communications. This section can be used as the basis for a formal data link programming interface. However, it is not a formal programming interface, and any such interface will need to address implementation aspects not covered by this standard, including: a) the size of various multi-octet service parameters and the octet b) the interrelationship of request/confirmation primitive pairs or indication/response primitive pairs. 1.3 Conformance This part of ISO 10000 does not prescribe specific implementations or products, nor does it place restrictions on the implementation of data link entities within industrial automation systems. For this data link service definition standard, there is no device conformance. Instead, device conformance is achieved by implementing a data link protocol that satisfies the various data link services defined in this standard.

GB/T 20540.3-2006 Referenced Document

• GB/T 17547-1998 Information technology--Open System Interconnection--Data link service definition
• GB/T 17967-2000 Information technology-Open Systems Interconnection-Basic reference model-Convention for the definition of OSI services
• GB/T 20540.4-2006 Digital data communication for measurement and control Fieldbus for use in industrial control systems Type 3: PROFIBUS specification Part 4: Data link layer protocol specification
• GB/T 9387.1-1998 Information technology--Open Systems Interconnection--Basic Reference Model--Part 1: The Basic Model
• ISO/IEC 7498-3:1997 Information technology - Open Systems Interconnection - Basic reference model: Naming and addressing

GB/T 20540.3-2006 history

• 2006 GB/T 20540.3-2006 Digital data communication for measurement and control Fieldbus for use in industrial control systems Type 3: PROFIBUS specification Part 3: Data link layer service definiton

GB/T 20540.3-2006 -All Parts