Siemens provides no technical support for unauthorized copies. According to Siemens licensing terms, no technical support is provided for products that have been modified. If you encounter issues with an unofficial version, you will be entirely on your own.

Keep detailed logs of parameter changes, ensuring version control matches the actual firmware running on the physical substation relays.

for configuring a specific logic function in the CFC editor? Engineering software DIGSI 4 - Siemens

This core component organizes substations hierarchically. It maps projects by routing folders down to individual relays and communication links.

DIGSI 4 provides a modern, intuitive interface for managing complex power system protection:

Modern substations rely on robust communication network protocols. DIGSI 4 includes built-in tools to map binary and analog points to protocols such as IEC 61850, DNP3, Modbus RTU, and Profibus. It manages the creation of Substation Configuration Description (SCD) and Configured IED Description (CID) files essential for IEC 61850 networks. 5. Offline Simulation and Testing

DIGSI 4 allows engineers to set exact threshold values, time delays, and logic configurations for protection functions like overcurrent, distance, and differential protection. Parameters can be configured offline on a laptop and uploaded to the device later via a communication cable. 2. DIGSI CFC (Continuous Function Chart)

For further assistance, visit the portal at support.industry.siemens.com or contact your local Siemens representative. With a proper installation of DIGSI 4.95, you will be well‑equipped to manage and maintain your SIPROTEC relays efficiently and reliably.

Visit the Siemens Support page for the DIGSI 4 V4.95 Full Version.

However, I need to clarify a few things:

No free viewer exists. However, you can use (without a license) to view but not modify or transfer settings.

portal. This package includes the base software along with all released device drivers. Download & Installation Steps Access the Portal : Visit the Siemens SiePortal or the specific v4.95 download page Login/Register

Unauthorized installers frequently package trojans that can compromise corporate networks.