CENELEC
Projet
| Reference | HD 557 S1:1990 |
|---|---|
| Title | Signaux logiques de mesure et de commande dans les processus industriels |
| Project Number | 4287 |
| Abstract/Scope | S'applique aux signaux logiques en tension continue d'un niveau nominal de 24 V, non multiplexés et transmis par deux fils, utilisés dans les systèmes de mesure et de commande de processus industriels pour transmettre l'information entre les éléments du système. |
| Status |
Published
|
Statut
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 1990-08-13 |
| Current Stage code deadline | 1991-06-15 |
| Deadline date for vote |
Légal
| Directive(s) | |
|---|---|
| Mandate(s) | |
| Order Voucher |
Détails
| IEC Technical Body | IEC/SC 65A |
|---|---|
| Reference Document | IEC 60946:1988 (EQV) |
| ICS | |
| Keywords | |
| Note | |
| A-Deviation(s) | |
| Special National Condition(s) |
Environnement
|
Clause
|
Categories - Aspects
|
Cycle de vie du produit
|
Information
|
|---|
Histoire
Dates de mise en application
| date of Ratification (DOR) (1) | 1990-06-11 |
|---|---|
| date of Availability (DAV) (2) | 1990-08-13 |
| date of Announcement (DOA) (3) | 1990-12-15 |
| date of Publication (DOP) (4) | 1991-06-15 |
| date of Withdrawal (DOW) (5) | 1991-06-15 |
Rélations
| Supersedes | |
|---|---|
| Superseded by | |
| Normative reference (6) |
(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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.
