This issue is most common when attempting to a safety program from a PLC to a PG/PC, as Siemens F-CPUs block these actions by default unless a specific setting was checked before the program was originally downloaded to the controller. Core Meaning of the Error
Generally does not support safety program uploads at all; the original project file is required for any modifications. How to Resolve and Activate the Feature Question regarding "Enable consistent upload from F-CPU" consistent download from the f-cpu is not active
The safety program in a Siemens PLC is protected by a to ensure its integrity. If the "Enable consistent upload from the F-CPU" option is not active, the PLC will not store the additional data required for TIA Portal to reconstruct the safety blocks during an upload. This issue is most common when attempting to
Supports consistent upload starting from firmware version V2.1 . If the "Enable consistent upload from the F-CPU"
"Consistent download from the f-cpu is not active" typically refers to an error or state in Siemens TIA Portal where the feature has not been enabled or successfully synchronized between the engineering software and the Fail-safe CPU (F-CPU) .