PROFINET Redundancy: It’s all about UPtime

Automation networks have always been designed to meet two key criteria: reliability and availability. Reliability is the first priority. Data that enters the network should be unchanged and always make it to its destination. Availability is a more complex problem because it’s not just about moving bits across a network. Redundancy mechanisms turn a reliable system into a highly available system, adding extra components or functionality to maintain reliable operation through a number of failures. This White Paper goes over the four components of a PROFINET redundant network. Then, it covers PROFINET’s scalable system redundancy configurations. Table of Contents

Introduction
Redundancy in PROFINET
Device redundancy
Controller redundancy
Media Redundancy
Network redundancy
Scalable PROFINET System Redundancy
S1, S2, R1 and R2 configurations
Summary

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