Cause : Project/firmware is being downloaded to the memory card comes when an upgrade (project/firmware download) was initiated on the memory card. While this fault is present, the corresponding update takes place with plausibility and consistency checks. After this, depending on the command option, a new boot (reset) for the Control Unit is initiated.

Caution: During the upgrade and while this fault is present, it is not permissible to switch off the Control Unit. If the operation is interrupted, this can destroy the file system on the memory card. The memory card will then no longer work properly and must be repaired.

- The fault automatically disappears after the upgrade has been completed.