Szabványkereső

Hivatkozási szám, azonosító jelzet, vagy a szabványcímben előforduló kulcsszó szerinti keresés:


ICS (a szabványok nemzetközi osztályozási rendszere) szerinti keresés

Nettó ár: 17420 Ft
Kosárba tesz
Alapadatok
Hivatkozási szám
MSZ EN 61158-6-21:2013
Dokumentumazonosító
155100
Cím
Ipari adatközlő hálózatok. A terepi busz előírásai 6-21. rész: Az alkalmazási réteg protokoll-előírása. 21-es típusú elemek (IEC 61158-6-21:2010)
Angol cím
Industrial communication networks. Fieldbus specification. Part 6-21: Application layer protocol specification. Type 21 elements (IEC 61158-6-21:2010)
Alkalmazási terület
1.1 General This standard is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the three-layer fieldbus reference model described in IEC/TR 61158-1:2010. This standard contains material specific to the Type 21 communication protocol. 1.2 Overview The Fieldbus Application Layer (FAL) 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, as well as material specific to Type 21. The term “time-critical” is used to represent the presence of a time-window, within which one or more specified actions must to be completed with some defined level of certainty. Failure to complete specified actions within the required time risks the failure of the applications requesting the actions, with attendant risk to equipment, plant, and possibly human life. This standard defines interactions between remote applications. It also defines the externally visible behavior provided by the Type 21 application layer in terms of: a) the formal abstract syntax defining the application layer protocol data units (APDUs) conveyed between communicating application entities; b) the transfer syntax defining encoding rules that are applied to the APDUs; c) the application context state machine defining the application service behavior visible between communicating application entities; d) the application relationship state machines defining the communication behavior visible between communicating application entities. The purpose of this standard is to: a) describe the wire-representation of the service primitives defined in IEC 61158-5-21:2010; b) describe the externally visible behavior associated with their transfer. This standard defines the protocol of the Type 21 application layer in conformance with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI application layer structure (ISO/IEC 9545). 1.3 Specifications The principal objective of this standard is to specify the syntax and behavior of the application layer protocol that conveys the Type 21 application layer services. A secondary objective is to provide migration paths from previously existing industrial communications protocols. 1.4 Conformance This standard does not restrict individual implementations or products, nor does it constrain the implementations of application layer entities in industrial automation systems. Conformance is achieved through implementation of this application layer protocol specification.
ICS
25.040.40 Ipari folyamatok mérése és vezérlése
35.100.20 Adatkapcsolati réteg
35.110 Hálózatba szervezés
A szabvány nyelve
angol
Az érvényesség kezdete
2013-03-01
A visszavonás napja
2022-07-25
További adatok
Forrás
idt IEC 61158-6-21:2010; idt EN 61158-6-21:2012
Előd
Módosítás
SZK-közlemények
Kapcsolódó európai jogszabály
Kereskedelmi adatok
A szabvány
kapható formátuma
Papír ,
PDF (letöltés) (a fájl mérete: 627884) ,
oldalszáma
52 oldal; U kategória
ára
Nettó: 17420 Ft
Bruttó:
Papír formátum esetén (5% Áfával): 21949 Ft
PDF (letöltés) formátum esetén (27% Áfával): 22123 Ft
Szabvány életútja
Elődök

Jelenleg nincsenek előzmények

Megtekintett szabvány

MSZ EN 61158-6-21:2013

2013-03-01 - 2022-07-25