Organizations implementing ISO/IEC 27001 must apply security controls to manage and reduce information security risks. These controls are listed in Annex A of the standard and form a key part of building an effective Information Security Management System (ISMS). Annex A provides a structured set of security controls that organizations can implement based on their risk assessment results.… Read More »
ISO/IEC 27001 is the international standard for establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS). The standard helps organizations protect their information assets through a structured framework that manages security risks. It is jointly developed by: ISO/IEC 27001 is widely recognized as the global benchmark for information security management. Purpose of ISO/IEC 27001 The… Read More »
Organizations operating industrial environments often ask an important question: Should we implement IEC 62443 or ISO 27001 for cybersecurity? Both standards are widely recognized in the cybersecurity world, but they serve different purposes. While ISO 27001 focuses on information security management in IT environments, IEC 62443 is specifically designed to secure industrial automation and control systems. Understanding the… Read More »
The application layer is where industrial communication becomes meaningful. If: Then the application layer defines what those frames actually mean. IEC 61158 Parts 5 and 6 define: This layer enables: This article explains the IEC 61158 application layer in clear, practical terms for automation engineers and protocol developers. 1. What the Application Layer Does The application layer (Layer… Read More »
The data-link layer is where deterministic industrial communication truly begins. If: Then IEC 61158 Parts 3 and 4 define how frames are structured, timed, and controlled. The data-link layer: This article explains the IEC 61158 data-link layer in practical engineering terms. 1. What the Data-Link Layer Does The data-link layer (Layer 2 of OSI) is responsible for: It… Read More »
IEC 61158-2 defines the physical layer specification for industrial fieldbus communication systems. It establishes the electrical, optical, and timing rules that allow deterministic data transmission between industrial devices. While IEC 61158-1 defines the architecture of the standard,IEC 61158-2 defines how bits physically travel across copper and fiber media. This article explains the IEC 61158-2 physical layer in clear,… Read More »
If you work in industrial automation, PLC integration, or SCADA system design, you will eventually encounter IEC 61158. But IEC 61158 is not a single protocol. It is a family of international standards that define how industrial fieldbus communication systems are structured — from the physical wiring all the way up to the application layer. This article explains… Read More »
Network segmentation is one of the most important cybersecurity principles in modern SCADA and industrial control systems. It is not just a best practice. In the IEC 62443 series of standards, segmentation is a core security requirement. In simple words, network segmentation means: Do not allow every device to talk to every other device. Instead, divide the system… Read More »
Designing a SCADA network is not just about connecting devices. It is about building a system that is reliable, secure, scalable, and easy to maintain for many years. In this guide, we will explain SCADA architecture in simple and practical terms. Whether you are working on a power substation, a water utility, an oil & gas pipeline, or… Read More »
Modbus is simple, but real SCADA integration is rarely simple. In power systems, automation, and industrial plants, most commissioning delays come from small configuration mistakes or physical-layer issues — not from the protocol itself. This guide explains 15 real Modbus problems engineers face on site, how to recognize them quickly, and what practical actions solve them. The explanations… Read More »