Issue High CPU load and task overruns are typically caused by inefficient application logic, misconfigured task priorities, excessive communication polling, overuse of event tasks, or large data processing within a single scan cycle. Resolution This article provides a structured approach to diagnosing and resolving high CPU load and task overrun issues in Modicon M580 controllers. It focuses on identifying bottlenecks in cyclic and event tasks, using built-in diagnostic variables, understanding communication impact, and applying optimization techniques. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue Cyber security defence is increasingly difficult in any Ethernet network-based architecture. Putting more layers of protection is a good strategy but knowing what has happened to a system is essential to any investigation of an incident. Analysing system logs is often the key to discovering what has happened during a forensic  examination. EcoStruxure Control Expert, M580 and other communication modules support posting logs to a centralized system known as a Syslog Server. Resolution Using the Syslog servers in Ubuntu for event logging on M580 is detailed in the attached article. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue Resetting a Modicon Redundant Switch may leave the web browser inaccessible, so it is not possible to configure the switch. Resolution This article describes how to do a full factory reset using the command line of the switch. It follows on from the knowledgebase article Modicon Redundant Switch - Factory Reset Without Password which is included here for convenience. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue To improve cybersecurity and facilitate collaborative automation engineering by allowing multiple users to work simultaneously on the same project. Resolution With EcoStruxure Control Expert version 16.2 and higher, the EcoStruxure Control Expert Client-Server Architecture enhances industrial automation by offering centralized data management, cost efficiency, scalability, improved performance, stronger security, and resource sharing. Teams with several engineers working on authentication can utilize the Security Editor to manage the certificate whitelist and oversee access to EcoStruxure Control Expert software. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue What do the indicator icons in the Topology Manager's System Project pane mean? When should "Sync Changes" (updates) be made to inform other users of the change? Resolution You can determine whether the changes are in the Topology Manager environment or still in the Control Expert Editor memory area by comprehending how Topology Manager and Control Expert Editor interact. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue The new Modicon M580 Redundant Ethernet Remote I/O (RIO) systems require Modicon switch configuration. Resolution This article shows how to configure Modicon switches for use with redundant PRP networks. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue The new Modicon M580 Redundant Ethernet Remote I/O (RIO) systems require Redundant switches (Red Box) configuration. Resolution This article shows how to configure Redundant switches for use with redundant PRP networks. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue How to configure and implement redundant I/O network using PRP technology within a Modicon M580 standalone architecture?     Resolution This article provides a step-by-step guide to configure and implement a Modicon M580 standalone architecture with a redundant I/O network based on PRP (Parallel Redundancy Protocol) technology. Such an architecture includes at least: -one Modicon M580 controller supporting Remote I/O drops -one Remote I/O drop managed by a redundant communication adapter BMECRA31310(H) -two Modicon Managed Ethernet Switches -one Modicon Redundancy Switch supporting PRP.   Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue By assigning the I/O channels of the Modicon STB with symbolic names, you can significantly enhance the readability and maintainability of your automation projects. The development and debugging processes will be streamlined, documentation will be clearer, and communication will be enhanced by replacing each I/O channel with a meaningful symbolic name that appropriately describes the device or purpose connected to it. Modicon STB as Distributed I/Os Resolution In this article, we will explore the steps and best practices for assigning symbolic names to the I/O channels of the Modicon STB, ensuring a more efficient and organized approach to your automation tasks. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue Sometimes the password for the Modicon Redundant Switch can be misplaced and therefore need to be Factory Reset.   Note: The Knowledge Base article to Factory Reset a Modicon Managed Switch can be found here https://community.se.com/t5/Industrial-Automation-Knowledge/Modicon-Managed-Switch-Factory-Reset-with-Memory-backup-adapter/ta-p/475864     Resolution The following Knowledge Base article details the steps required to Factory Reset the Modicon Redundant Switch when the Username and Password are not known.   Download the PDF for instructions. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue When connecting Schneider controllers to a customer network infrastructure there is often an issue where the path between IT and OT seems blocked. The purpose of this document is to examine one of the common causes and explain the different architecture philosophy implemented in IT using Cisco as an example. Resolution Please the attachment for more details. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue Teams with several engineers want to be able to gain access to the EcoStruxure Control Expert Classic software through authentication. In addition, the tool facilitates user access control configuration for EcoStruxure Control Expert Classic software and allows a secure centralized network design. Centralized Security Database Resolution The Security Editor tool simplifies the configuration of EcoStruxure Control Expert Classic user access control and supports a secure, centralized architecture with the following features: Client-server architecture supporting a secure proprietary protocol for users without IT authentication infrastructure. Client-server architecture using the Microsoft Active Directory as the Lightweight Directory Access Protocol (LDAP) server. Manage the certificate whitelist. Generate a certificate. Centralized security database. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.  

Issue The Topology Manager Client-Server model, or Client-Server Architecture, is a distributed application framework dividing tasks between servers and clients, which either reside in the same computer system or communicate through an Ethernet network. It simplifies the automation life cycle by managing multi-controllers with a central repository for all project files and providing visibility of the entire system architecture. How do I set up a central repository to store all the system project files and manage multiple controllers? Toplogy Manager Client-Server Architecture Resolution Technically, there’s no limit to the number of clients. There’s only one installation file that installs both EcoStruxure Control Expert and the Topology Manager. Both server and client files are always installed together. The objective of this article is to offer guidelines for setting up a client-server architecture for Topology Manager.   Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.

Issue I want to have multiple engineers working on my EcoStruxure Automation Expert Solution. Resolution This article describes the main features of EcoStruxure Automation Expert Sub Versioning, and how they can be used to allow multiple engineers to work on the same solution concurrently. Disclaimer The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.