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This article provides a complete, actionable guide. We will cover what DIGSI 4.90 is, why the "UPD" (Update) is critical, where to legally download it, how to install it, and troubleshooting common issues.
Search directly for the DIGSI 4.90 download page or look for the SIPROTEC 4 software update section.
Always back up your existing project database before upgrading from an older version (like 4.8x). Admin Rights:
DIGSI 4 serves as the primary user interface for configuring and managing used in industrial and energy distribution systems. Version 4.90 was significant because it introduced or refined several core features that are still vital today: Digsi 4.90 Download UPD
Updates fix known issues with configuration mapping and enhance security to prevent unauthorized access.
While searching for version 4.90, check for newer versions like DIGSI 4 V4.95 or V4.96. They offer better stability and include legacy drivers matching older 4.90 hardware projects. 2. Download and Installation Process
Here are the legitimate sources for the DIGSI 4.90 Update: This article provides a complete, actionable guide
Full support for Windows 10 (64-bit) professional environments.
If the software prompts you for a new license after updating, ensure your existing hardlock USB dongle or software license key (ALM - Automation License Manager) is recognized. Open the to verify that your current DIGSI 4 license is active and upgraded. 2. Missing Device Drivers
Within the software, you can organize your work by voltage level (e.g., 132 KV vs. 13.8 KV) and insert specific objects representing your relays (like the 7SD or 7SJ series). Quick Summary Table DIGSI 4 Start Up - Support Always back up your existing project database before
It allows engineers to "project" logic visually using Continuous Function Charts (CFC) instead of complex manual programming.
: Specifically provided to install older device drivers not found in newer versions. DIGSI 4 V4.96 : A stable, widely used recent version. DIGSI 4 V5.00 : The most current major release as of 2025/2026. Key Features of DIGSI 4
Improved handling of Substation Configuration Language (SCL) files for seamless interoperability. System Requirements
: Critical patches resolving communication timeouts and database migration errors from version 4.8x. System Requirements for DIGSI 4.90
: If you are trying to update an existing installation (e.g., from v4.84 to v4.90), the installer may require you to manually uninstall the old version