The Siemens DIGSI 4 V4.95 is the standard engineering software for configuring, parameterizing, and operating SIPROTEC 4 and SIPROTEC Compact protection relays. While newer versions like V5.00 and V4.96 are now available, V4.95 remains a widely used, stable release for industrial energy distribution systems. 🛠️ Software Overview & Key Features
DIGSI 4 serves as the primary interface for managing all tasks from initial settings to fault evaluation.
Unified Toolset: Provides a single tool for all SIPROTEC 4 product generations, ensuring data consistency and reducing training costs.
Visual Engineering: Features a graphical user interface for visual logic programming using CFC (Continuous Function Chart) without requiring deep programming knowledge.
Data Management: Includes a common database for all devices in a project and supports IEC 61850 system engineering via an integrated configurator.
Signal Marshalling: Uses an easy-to-navigate assignment matrix for mapping signals at a glance. 📥 Download & Installation Guide
The full version of DIGSI 4 V4.95 is available for download through the official Siemens Industry Online Support (SIOS) portal.
Trial Version: You can use the full software for 30 days without a license key for testing or training. To activate this, enter "Trial" as the serial number during setup.
Requirements: You must register for a free account on the Siemens website to access the download. Components to Download: DIGSI 4 Software: The core application.
Device Drivers: Necessary for the software to communicate with specific relay hardware.
Installation Tip: For Windows 11 Pro users, if you encounter errors, try updating to the Automation License Manager V6.2 SP4 to ensure compatibility. ✅ Pros and Cons
Intuitive Interface: Modern, user-friendly design tailored for industrial power systems.
Legacy Hardware: Primarily supports older SIPROTEC 4 units; newer SIPROTEC 5 units require DIGSI 5.
Remote Access: Excellent features for remote data access, reducing manual site visits and outage times.
Licensing: Requires a paid license for permanent full functionality after the 30-day trial.
Data Interoperability: Strong support for IEC 61850-6 formats (ICD, SCD, CID). siemens digsi 495 download full
Version Management: Some older device drivers may not be included in the newest "latest" versions.
Siemens DIGSI 4 V4.95 is the professional engineering software used to configure, parameterise, and evaluate SIPROTEC 4, SIPROTEC Compact, and earlier protection relay generations. Download and Official Access
The full version of DIGSI 4 V4.95 is available through the official Siemens Industry Online Support (SIOS) portal.
Trial vs. Full Version: The download file is identical for both versions. To use it as a 30-day trial, you must enter the term "Trial" as the serial number during installation.
Licensing: For permanent use, a valid license key is required. If you already have a license, this installer can be used for a clean installation of the software.
Package Content: The official download is approximately 5.3 GB and includes both the DIGSI 4 software and all released device drivers. Key Features of DIGSI 4
DIGSI 4 provides a modern, intuitive interface for managing complex power system protection:
Assignment Matrix: Displays the complete device configuration (LEDs, binary inputs, and relay assignments) in a single view for quick changes.
CFC (Continuous Function Chart): Allows users to create logic visually by linking functional blocks (like AND/OR gates and timers) without needing deep programming knowledge.
Flexible Parameterisation: Settings can be toggled between primary and secondary values with a single click.
IEC 61850 Support: Includes a system configurator for manufacturer-neutral engineering of interoperable substation automation. System Requirements
To ensure stable performance, your PC should meet these minimum specifications:
Operating System: Windows 10 Pro/Enterprise (64-bit) or Windows 7 Ultimate (SP1). Some users have reported compatibility with Windows 11 using the Automation License Manager V6.2 SP4. Hardware: Processor: 1 GHz or higher (2 GHz recommended).
RAM: 1 GB minimum (2 GB recommended; 4GB+ for Windows 10/11).
Storage: 4 GB of free hard disk space (5.3 GB for the installer itself). The Siemens DIGSI 4 V4
Connectivity: RS232 serial or USB interface depending on the relay model. Installation Steps
Download and Unpack: Obtain the DVD installation file from the Siemens Support Portal and extract the contents. Run Setup: Open Setup.exe and follow the on-screen prompts.
Enter License: Type your official serial number or enter "Trial" for the 30-day evaluation.
Install Device Drivers: After installing the base software, you must install the specific drivers for your relay models (e.g., 7SJ, 7SA, 7UM) to enable communication.
DIGSI 4 V4.95 is the professional engineering software used for configuring, parameterizing, and operating Siemens SIPROTEC 4 SIPROTEC Compact
, and earlier SIPROTEC 2/3 protection devices. While newer versions like
are now available, V4.95 remains a stable choice for many industrial and energy distribution systems. Download and Availability The official full version of DIGSI 4 V4.95 can be downloaded directly from the Siemens Industry Online Support (SIOS) portal Trial vs. Full Version
: The download provided by Siemens is technically the "Full Version," but it requires a valid license key for permanent use. Without a key, you can activate a 30-day trial period by entering the term " " as the serial number during installation. Package Contents : The download (approx. 5.3 GB) typically includes: DIGSI 4 Professional IEC 61850 System Configurator (for evaluating disturbance records). All released DIGSI 4 device drivers , which can be installed independently. Key Features
DIGSI 4 is designed to simplify complex protection settings through several key tools: Assignment Matrix
: Provides an "at-a-glance" view of the entire device configuration, allowing you to map LEDs, binary inputs, and output relays with a single click. CFC (Continuous Function Chart)
: A visual logic tool that allows you to create interlocks and operating sequences by drawing rather than coding. Primary/Secondary Values
: Effortlessly switch between primary and secondary setting values with one click to match your testing or engineering requirements. SIGRA Integration
: Visualizes and analyzes fault records to quickly identify issues and reduce system downtime. Installation & System Requirements To install DIGSI 4 V4.95, you must have administrator rights on your PC.
Siemens DIGSI 4.95 Download: A Complete Guide to SIPROTEC Engineering
If you are working with SIPROTEC 4, Compact, or older protection devices, having the right engineering software is non-negotiable. Siemens DIGSI 4.95 remains one of the most stable and widely used versions for configuring, parameterizing, and operating these critical industrial components. Step 1: Meet the System Requirements Before downloading
Whether you're looking for a fresh install or an upgrade, here is everything you need to know about downloading and setting up DIGSI 4.95. What is Siemens DIGSI 4?
DIGSI 4 is an intuitive PC-based user interface designed for the management of protection relays. It simplifies complex tasks like protection settings and commissioning through features like a visual Assignment Matrix and Continuous Function Chart (CFC) logic, which allows you to project logic without advanced programming knowledge. Key Components Included in the Full Version:
DIGSI 4 Professional: The core engine for device configuration.
SIGRA: A specialized tool for evaluating disturbance records and analyzing grid faults.
IEC 61850 System Configurator: Essential for vendor-neutral engineering and substation automation.
Integrated Device Drivers: A comprehensive package of released drivers for various SIPROTEC families. Where to Download Siemens DIGSI 4.95
The most secure way to obtain the software is through the official Siemens Industry Online Support (SIOS) portal.
Official Download Link: You can find the installation files at the Siemens SIOS Support Page.
File Size: Approximately 5.3 GB (includes all device drivers).
Trial Period: If you do not have a license key, you can enter the word "Trial" as the serial number during setup to activate a fully functional 30-day trial period. System Requirements for Installation
Before starting your download, ensure your hardware meets these standards for optimal performance: Minimum Requirement Recommended Processor 1 GHz (Intel Pentium IV) Modern x86-64 (Core i5/i7) RAM 4 GB - 16 GB+ Storage Space 4 GB (Installation only) 32 GB SSD (for projects/archiving) Display 1024 x 768 1920 x 1200 OS Windows 7 / 10 (64-Bit) Windows 10 Professional
Important Note: For Windows 10 users, Microsoft .NET Framework V3.5 must be installed manually for DIGSI 4 to function correctly. Step-by-Step Installation Guide
Before downloading and installing DIGSI 4.95, ensure that your computer meets the minimum system requirements, which include:
In the world of power system protection and automation, Siemens SIPROTEC devices have long been the gold standard for protective relaying. The bridge between a protection engineer and these sophisticated relays is DIGSI—Siemens' proprietary engineering software. Among the various versions, DIGSI 4.95 (often searched as "Siemens DIGSI 495 download full") remains one of the most widely used and sought-after releases. This article provides a comprehensive guide to understanding, legally obtaining, installing, and utilizing DIGSI 4.95 for your substation automation projects.
Once the download is complete, follow these steps to install DIGSI 4.95:
You need to import the latest Device Description Files (DDF). Download the DDF pack from SIOS and use Extras -> Update Device Catalog in DIGSI.