Once you obtain DIGSI 4.91, backup the installer and your license dongle in a fireproof safe. Finding this software again in 2028 will be even harder than it is today.
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. While version 4.91 was a major milestone, Siemens has since released newer updates like V4.94. Proper Review of DIGSI 4.91 DIGSI 4.91 is the primary engineering tool for Siemens SIPROTEC 4 Once you obtain DIGSI 4