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  • BSI
    20/30384344 DC BS ISO 21919-2. Physical device control. Interfaces for automated machine tending - Part 2. Safety and control interface
    Edition: 2020
    $45.38
    / user per year

Description of 20/30384344 DC 2020

The ISO 21919 series describes interfaces for automated machine tending of at least one computer numerically controlled (CNC) machine by using a machine tending system. These interfaces are the link between automated machine tending systems and machines used for production. The automated machine tending is initiated by either the machine tending system or by the machine.

Part 1 of the standard series gives an overview and defines the fundamental principles on how the interfaces are set up. It defines the necessary vocabulary and sets the syntax for the structure of signals. It distinguishes between the safety interface, the control interface and project specific extensions.

This document deals with the safety interface and control interface. It allocates signals to a conformance class and/or conformance option. It describes the detailed functions of each signal, describes and displays the timing interactions between signals in flow charts and shows examples for safety matrices and safety-related functional relationships.

This document defines three conformance classes and dedicated conformance options. Classes and options consist of a number of signals to

  • allow a flexible adaptation of the interface(s) to a project-specific scope of functions and simultaneously

  • tie sets of signals tight enough to avoid unnecessary coordination efforts between suppliers of the machine tending systems and machines.

The ISO 21919 series concentrates on the control-related and safety-related connections. It does not describe the mechanical connections, does not determine the transfer physics, a pin assignment, the hardware of the interfaces or measure of communication, e.g. protocol, and it is not intended to use this standard for communication to a MES (Manufacturing Execution System).



Standard Number20/30384344 DC
TitleBS ISO 21919-2. Physical device control. Interfaces for automated machine tending - Part 2. Safety and control interface
StatusDefinitive
Publication Date2020-03-11
Identical National Standard OfISO/DIS 21919-2
DescriptorsMechanical interfaces, Interfaces (data processing), Interfaces, Electrically-operated devices, Electrical equipment, Automation, Safety
ICS25.040.20 Numerically controlled machines
CommitteeAMT/4
PublisherBSI
Pages55



About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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