ISO 2972:1979 PDF

Name: ISO 2972:1979 — Numerical control of machines — Symbols
SKU: ISO 2972:1979
Price: 25 EUR
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Numerical control of machines — Symbols

Название (английский):

ISO 2972:1979

Numerical control of machines — Symbols

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 1 августа 1979 г.
Издание:: ISO IS 2972 edition 2 version 1
ICS:: 01.080.20

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Описание (английский):

La présente Norme Internationale établit un jeu de symboles normalisés destinés à l'identification et à l'affichage des fonctions de commande sur les machines à commande numérique. Les symboles représentés ici sont propres aux applications en commande numérique. En pratique, les équipements doivent également utiliser des symboles relatifs aux machines-outils classiques. Ces derniers doivent être choisis conformément à l'ISO/R 369.

Abstract

Похожие стандарты

Другие стандарты ISO

Overview

ISO 2972:1979 - "Numerical control of machines - Symbols" defines a standardized set of graphical symbols for numerical control (N.C.) machine tools. Published by ISO/TC 97 (Computers and information processing), the second edition (1979) consolidates basic and compound symbols used to identify and display control functions on CNC/CAM systems and machine-tool control panels. The standard is specific to NC applications and refers users to ISO/R 369 for conventional machine-tool indication symbols.

Key Topics

Basic symbols: directional arrow (two forms), functional arrow, data carrier, program (with and without machine functions), block, origin/datum, compensation/offset, store and interchange.

Operational symbols: tape wind, forward/backward, continuous read, block-by-block execution, programmed stops and optional stops, block skip.

Data and program handling: data carrier identification (paper tape, magnetic media), program begin/end, search functions, program alignment, program from external device, alternative data carrier input.

Coordinate and positioning: reference position, coordinate origin, absolute vs incremental programming notation, zero offset, positioning accuracy (normal/coarse), programmed vs actual position, position (servo) error.

Storage & editing: store/read/write/reset, program storage, subroutines and subroutine storage, buffer storage, program edit, modify/amend, repositioning.

Errors and status: syntax/parity failure, storage overflow, storage error, battery indicator (IEC symbol referenced).

Standardization notes: many compound symbols are formed from repeated basic symbols; arrow variants serve different semantic roles (directional vs functional).

Applications

ISO 2972:1979 is used to:

Standardize control-panel graphics and operator displays for CNC machine tools.

Ensure consistent symbols across machine manuals, training materials, and HMI interfaces.

Improve operator comprehension, reduce errors, and support international interoperability of NC equipment.

Guide designers of machine-tool controls, CNC manufacturers, technical illustrators, maintenance engineers, and documentation authors.

Related Standards

ISO/R 369 - Symbols for indications appearing on machine tools (referenced for conventional machine-tool symbols)

IEC graphic symbols (battery symbol IEC 5001 referenced in the document)

Keywords: ISO 2972:1979, numerical control, NC symbols, CNC symbols, machine-tool symbols, control panel graphics, program symbols, data carrier, compensation, positioning accuracy.

ISO 2972:1979 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Who Should Use It

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