The removable data medium is used as USB data storage medium from a PC, preventing access and backup on the Siemens G120C. The manual's first action is: “Alarm value (r2124, interpret decimal): 1: The know-how protection as well as the copy protection for the removable data medium is active. Backup is inhibited. 2: The configuration data are only backed up in the Control Unit. See also: r7760 (Write protection/know-how protection status), r9401 (Safely remove memory card status) Deactivate the USB connection to the PC and back up the configuration data.”
- Model
- Siemens G120C
- Display shows
- A01021
- Type
- Error code
- Source
- Manual p. 663
What A01021 means
Removable data medium as USB data storage medium from the PC used p. 663
Common causes
- The removable data medium is used as USB data storage medium from a PC As a consequence, the drive cannot access the removable data medium. When backing up, the configuration data cannot be saved on the removable data medium. p. 663
- Note: p. 663
What to do
- Alarm value (r2124, interpret decimal): 1: The know-how protection as well as the copy protection for the removable data medium is active. Backup is inhibited. 2: The configuration data are only backed up in the Control Unit. See also: r7760 (Write protection/know-how protection status), r9401 (Safely remove memory card status) Deactivate the USB connection to the PC and back up the configuration data. p. 663
- The alarm is automatically canceled when disconnecting the USB connection or when removing the removable data medium. p. 663
Before you service the product, read the safety instructions in the manual p. 4.
If A01021 is still not resolved
This page summarises what the manufacturer’s manual says about A01021; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.