CENELEC
Project
| Reference | EN 61158-5-18:2008 |
|---|---|
| Title | Industrial communication networks - Fieldbus specifications - Part 5-18: Application layer service definition - Type 18 elements |
| Project Number | 21648 |
| Abstract/Scope | 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 18 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 with respect to the previous edition deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; addition of new types of fieldbuses; division of this part into multiple parts numbered. |
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Published
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Status
| Current Stage code | 6060 |
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| Current Stage code date | 2008-03-14 |
| Current Stage code deadline | 2008-11-01 |
| Deadline date for vote |
Legal
| Directive(s) | |
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| Mandate(s) | M/490 |
| Order Voucher |
Details
| IEC Technical Body | IEC/SC 65C |
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| Reference Document | IEC 61158-5-18:2007 (EQV) |
| ICS | 25.040.40 - Industrial process measurement and control 35.100.70 - Application layer |
| Keywords | Industrial; Communication; Network; Fieldbus; Application layer |
| Note | This European Standard together with its companion parts of the EN 61158-5 subseries supersede EN 61158-5:2004 * Superseded by EN 61158-5-18:2012 |
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2008-02-01 |
|---|---|
| date of Availability (DAV) (2) | 2008-03-14 |
| date of Announcement (DOA) (3) | 2008-05-01 |
| date of Publication (DOP) (4) | 2008-11-01 |
| date of Withdrawal (DOW) (5) | 2011-02-01 |
Relations
| Supersedes | EN 61158-5:2004 |
|---|---|
| Superseded by | EN 61158-5-18:2012 |
| Normative reference (6) | ISO/IEC 7498-1:1994 ISO/IEC 8822:1994 ISO/IEC 8824:1990 ISO/IEC 9545:1994 HD 592 S1:1991 CLC/TR 61158-1:2008 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
