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HD 557 S1:1990

Binary direct voltage signals for process measurement and control systems HD 557 S1:1990

Publication date:   Dec 22, 2003

General information

60.60 Standard published   Aug 13, 1990

CENELEC

CLC/TC 65X Industrial-process measurement, control and automation

Harmonization Document

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Scope

Applies to non-multiplexed two wire binary direct voltage signals of nominal 24 V level that are used in industrial-process measurement and control systems to transmit information between elements of systems.

Life cycle

NOW

PUBLISHED
HD 557 S1:1990
60.60 Standard published
Aug 13, 1990

Relations

Adopted from IEC 60946:1988 IDENTICAL