This article explores "ghost bugs" in industrial programmable logic controllers (PLC), often caused by race conditions. It explains the mechanism of these errors, their link to the PLC scan cycle, and interactions with HMI/SCADA/interrupt tasks. Practical solutions for TIA Portal (Siemens) are presented to ensure code robustness.
In this article, I show you how I connected Claude to Siemens TIA Portal V20 via the MCP protocol, adding a Zero-Trust security layer thanks to Solo.io's AgentGateway — as part of the global MCP_HACK//26 hackathon.
Getting the first job as an automation engineer is a major challenge for junior profiles. This in-depth article explores the paradox of experience, the gap between theoretical training and practical requirements, and proposes concrete strategies based on experience to overcome these obstacles and succeed in professional integration in the industrial automation sector.
In-depth exploration of the synergy between Programmable Logic Controllers (PLCs) and the Industrial Internet of Things (IIoT). Discover why PLCs remain the cornerstone of real-time control, ensuring reliability and safety in the face of industrial digitization and Industry 4.0 challenges.
Discover how Node-RED, a visual programming platform based on flows, revolutionizes the supervision of industrial programmable logic controllers (PLCs) in an OT environment. This detailed technical article explores connectivity to PLCs (Modbus TCP, OPC UA), the creation of interactive dashboards, contextual alert management, and the implementation of advanced automation logic, while addressing cybersecurity considerations according to the IEC 62443 standard.
Discover the benefits and limitations of "soft PLC" automates in the industry
This technical article details and compares the four primary programming languages defined by the IEC 61131-3 standard: Ladder Diagram (LD), Structured Text (ST), Function Block Diagram (FBD), and Sequential Function Chart (SFC). It explores their paradigms, advantages, disadvantages, and optimal use cases in industrial automation, integrating cybersecurity considerations (IEC 62443) and demonstrative code snippets.
A comprehensive engineering guide on selecting Programmable Logic Controllers (PLCs) for small-scale automation in 2026, focusing on IIoT integration, cybersecurity standards, and deterministic performance.