Firmware 20.12 is part of the family tree. When Rockwell moved from Version 20 to Version 21, they introduced significant architectural changes, including the shift toward the Studio 5000 interface and changes to how projects are stored.
Improved security protocols and vulnerability disclosures. rslogix 5000 firmware 20.12
It corrects issues where axes (both SERCOS and CIP Drive types) would not allow motor feedback or marker tests while in certain safety or inhibit states. Drive ADC Stability: Resolves an anomaly where controllers using Automatic Drive Configuration (ADC) Firmware 20
If your plant is running , you are at a critical decision point: it is the last version that supports Windows 7 and the classic RSLogix 5000 interface, but it is no longer receiving security patches from Rockwell Automation. It corrects issues where axes (both SERCOS and