Beckhoff DK9222-0211-0021 Manuel d'utilisateur télécharger pdf

I/O

XFC

Application Note DK9222-0211-0021

Keywords

EL1252

EL2212

EL2252

Time stamp

XFC

EtherCAT

Exact system time

eXtreme Fast Control

Process data

Time stamp – a snapshot of control technology

This application example describes how, using the Beckhoff XFC technology, the temporal resolution of

ﬁeld signals for the controller is made several times more precise and, in addition, the validity of the

process data is released from the PLC cycle. The bases for these characteristics are the fast real-time

ﬁeldbus EtherCAT and the time stamping features of the Beckhoff EL1252 and EL2252 digital input and

output terminals, whose process data contain the exact time speciﬁcation of an event in addition to the

user data.

Introduction: XFC – eXtreme Fast Control

XFC is a control technology that enables very fast and highly deterministic I/O responses. It includes all hardware and software

components involved in control applications:

– optimized I/Os that can pick up signals with high accuracy or

initiate tasks,

– EtherCAT as an extremely fast communication network,

– high-performance Industrial PCs as the basis for the control hardware

– TwinCAT, the automation software that links all system components with one another.

Contrary to the original free-running communication links, in which the determinism of the process signals was accordingly

inaccurate, the employment of XFC signiﬁcantly lowers the cycle time and the determinism required for rigorous

real-time demands. XFC enables cycle times of 100 μs without sacriﬁcing the centralized intelligence and its high-performance

algorithms. XFC also includes additional technologies that not only improve cycle times but also temporal accuracy and

resolution. This opens up new possibilities to improve the quality of machines and to shorten reaction times. Measuring tasks,

such as preventive maintenance, the monitoring of life cycles or the documentation of parts quality, can all be integrated

New Automation TechnologyBeckhoff

For application notes see disclaimer on the last page

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External reference time 6

Résumé du contenu

Page 1

I/OXFCApplication Note DK9222-0211-0021KeywordsEL1252EL2212EL2252Time stampXFCEtherCATExact system timeeXtreme Fast ControlProcess data Time stam

Page 2

I/OXFCApplication Note DK9222-0211-0021in a simple manner in a central place in the machine controller without requiring external black boxes. XFC tec

Page 3

I/OXFCApplication Note DK9222-0211-0021If the temporal assignment is to be more precise, only the cycle time can be reduced by using a 1 ms task inste

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I/OXFCApplication Note DK9222-0211-0021in the identical system time being present in the entire network. In addition, the controller/PLC is also synch

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I/OXFCApplication Note DK9222-0211-0021Time stamp terminals from BeckhoffEL1252 | 2-channel digital input terminal with time stampEL2212 | 2-channel d

Page 6 - External reference time

I/OXFCApplication Note DK9222-0211-0021This publication contains statements about the suitability of our products for certain areas of application. Th

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Beckhoff DK9222-0211-0021 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Beckhoff DK9222-0211-0021. BECKHOFF DK9222-0211-0021 User Manual Manuel d'utilisatio

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