I.S. EN 60870-5-4:1994
Current
The latest, up-to-date edition.
TELECONTROL EQUIPMENT AND SYSTEMS - PART 5: TRANSMISSION PROTOCOLS - SECTION 4: DEFINITION AND CODING OF APPLICATION INFORMATION ELEMENTS
Hardcopy , PDF
English
01-01-1994
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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Cooperating organizations
National foreword
Foreword
Introduction
1. Scope and object
2. Normative references
3. Definitions
4. Declaration rules for information elements
4.1 Data types
4.2 Data size
4.3 Bit position
4.4 Values and codes
4.5 Assignment of function symbols and functions
4.6 Identifiers of data field sequences
4.7 Variable field size
4.8 Repetitive data fields
4.9 Logical combinations of data fields
4.10 Packing and order of transport of data field
5. Standard information elements
5.1 Type 1: UNSIGNED INTEGER (UI)
5.2 Type 2: INTEGER (I)
5.3 Type 3: UNSIGNED FIXED POINT NUMBER (UF)
5.4 Type 4: FIXED POINT NUMBER (F)
5.5 Type 5: REAL (R)
5.6 Type 6: BITSTRING (BS)
5.7 Type 7: OCTETSTRING (OS)
6. Set of information elements
6.1 Type 1: UNSIGNED INTEGER (UI)
6.2 Type 2: INTEGER (I)
6.3 Type 3: UNSIGNED FIXED POINT NUMBER (UF)
6.4 Type 4: FIXED POINT NUMBER (F)
6.5 Type 5: REAL (R)
6.6 Type 6: BITSTRING (BS)
6.7 Type 7: OCTETSTRING (OS)
6.8 COMPOUND INFORMATION ELEMENTS (CP)
Annex ZA (normative) Other international publications
quoted in this standard with the references of the
relevant European publications
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
Applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
52
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| IEC 60870-5-4:1993 | Identical |
| BS EN 60870-5-4:1994 | Identical |
| EN 60870-5-4:1993 | Identical |
| DIN EN 60870-5-4:1994-07 | Identical |
| SN EN 60870-5-4 : 1993 | Identical |
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