While the hardware relays (like the 7SJ64, 7UT86, or 7SA86) are robust and designed to last decades, the software required to talk to them evolves. DIGSI 4 is the generation of software designed for the SIPROTEC 4 and SIPROTEC Compact devices.
Increase the virtual memory and disable hardware graphics acceleration.
Ensure your SCL file is compliant with IEC 61850 Ed.1 (not Ed.2). DIGSI 4.95 does not fully support Ed.2. Use a text editor to check the header. Siemens Digsi 4.95 Download
: You can use the software for 30 days without functional restrictions by entering the word "Trial" as the serial number during installation. Key Features of DIGSI 4.95
DIGSI 4.95 offers a single interface for: While the hardware relays (like the 7SJ64, 7UT86,
A: Not officially supported, but many users report success using Windows 10 compatibility mode. The USB driver often fails. Use a virtual machine with Windows 10 LTSC.
Siemens does sometimes provide time-limited educational licenses to universities and vocational schools. If you are a student, ask your professor to request access through Siemens' Academic Partner Program. Ensure your SCL file is compliant with IEC 61850 Ed
Even with a legitimate download, users often encounter problems. Here are solutions to the top five issues:
A diagnostic tool used to read and analyze disturbance fault records.
Siemens is the dedicated engineering software used to configure, commission, and operate SIPROTEC 4 , SIPROTEC Compact , and earlier protection devices. It serves as a bridge between your PC and the protection relays, allowing you to manage complex grid settings and analyze fault records. How to Download DIGSI 4.95