Firmware 20.12 — Rslogix 5000
Before performing any firmware upgrade:
It expanded support for the then-new 1756-L7 series controllers, allowing them to coexist in the same environment as older L6 series units.
. This practice avoids conflicts with newer Windows updates or other software versions, as the legacy nature of RSLogix 5000 can sometimes lead to driver or activation issues on modern physical hardware specific hardware that requires version 20.12, or are you looking for migration steps to a newer version?
20.12 corrects anomalies found in earlier v20 firmware, specifically addressing issues with communication, memory management, and I/O module interaction. 3. Correcting Anomalies
