Digital Substation

Digital Substation is an engineering publication focused on IEC 61850 automation, protection systems, and digital grid intelligence.

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GOOSE is visible on the network, but the subscriber does not process it: a bug in the libIEC61850 library

The developers of the libIEC61850 library have released a fix for a bug that could cause valid GOOSE messages to be discarded by the receiving application. The problem affected version 1.6.2 and was caused by an incorrect Ethernet frame length check. The messages could be transmitted over the network successfully and appear in Wireshark, yet never reach the GOOSE subscriber's handler. This matters above all for developers of products supporting the IEC 61850 standard that use libIEC61850.

CIM and IEC 61850 harmonization moves towards machine-readable models and rules

Work on harmonizing the Common Information Model (CIM) and IEC 61850 is increasingly focused on formal rules that software tools can process directly. For digital substations, this opens the way to automatic transformation of engineering data and automatic consistency checking between models at different levels.

CIM-compare 2.0 released: CIM model changes can now be analysed automatically

The CIM Users Group has released version 2.0 of CIM-compare, an open-source tool for comparing two versions of the Common Information Model (CIM) UML model and automatically producing a report of all the changes found. The tool is useful for developers and experts working with models based on IEC 61970, IEC 61968 and IEC 62325, as well as with corporate CIM extensions. Version 2.0 brings a completely redesigned HTML report, change markers directly on UML diagrams and much smaller reports.

Skunkworks updated — the Wireshark build with IEC 61850 analysis extensions

A new version of Skunkworks Network Analyzer — a specialised Wireshark build with extensions for analysing IEC 61850 traffic — has been released on the OTB Consulting Services website. The update fixes the SclExtractor, adjusts the semantic data displays and removes outdated IEC 61850-90-5 terminology. Useful for engineers who diagnose GOOSE, Sampled Values and MMS on digital substations.

Siemens unveils SIPROTEC V: virtualized protection moves from concept to commercial product

Siemens Smart Infrastructure has unveiled SIPROTEC V — a virtualized version of SIPROTEC 5: up to 60 virtual IEDs on a single substation-grade server, Linux with a real-time kernel, the familiar DIGSI 5 and IEC 61850 System Configurator. Functions are organised by bays, with GOOSE, MMS, Sampled Values, PTP, PRP/HSR and NERC CIP / BDEW cybersecurity. The architectural signal: protection is going software-defined.

OpenGridWorks — an open map of the world's power infrastructure

Someone has put the world's power infrastructure on a single interactive map: 120,000+ power plants, 2.7 million HV/MV lines, 800,000+ substations — plus data centres, gas pipelines, submarine communications cables and flood-risk zones. Sources: OSM, ENTSO-E, Global Energy Monitor, EIA, HIFLD, TeleGeography and others.

ICSForge Released — an Open-Source Platform for Validating ICS Cybersecurity Coverage

ICSForge has been released under the GPLv3 license — an open-source tool for validating the coverage of ICS cybersecurity tools. It supports 10 industrial protocols (including Modbus/TCP, IEC-104, S7comm, OPC UA, IEC 61850 GOOSE), 536 scenarios and 11 ready-made attack chains, all mapped to the MITRE ATT&CK for ICS matrix (coverage 68 of 83 techniques, 82 %).

UCA International Users Group Opens Registration for 61850 IOP 2026

UCA International Users Group has opened registration for 61850 IOP 2026, the annual interoperability testing event for IEC 61850 equipment and software tools. For the first time, the programme includes multi-vendor MPLS network testing and functional verification based on Basic Application Profiles (BAP) per IEC 61850-7-6 Ed.2 and IEC 61850-90-30:2025.

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