Version 4.91 is significant because it represents one of the final, most stable iterations of the DIGSI 4 architecture before the industry fully transitioned focus to DIGSI 5. It offers improved Windows compatibility (supporting Windows 7 and often Windows 10 with specific patches) and updated device drivers for legacy hardware.
: Comprehensive guides for management and configuration can be accessed via Automation-Berlin Siemens Support siemens digsi 491 download verified
Visual logic programming for complex protection tasks. Version 4