Rslogix 5000 Firmware 20.12 [new] Jun 2026

noted that controllers running v20.012 might fail to transition to when used with certain PowerFlex 520 or 750 series drives. Upgrade Path:

The controller is at v20.12, but communications fail with 1756-ENBT or EN2T cards. Solution: v20.12 requires matching firmware revisions on communication modules. Ensure your ENBT card is at least v5.2. Flash all backplane modules to their latest compatible firmware. rslogix 5000 firmware 20.12