# ID 21099

SERCOS parameter: Data item currently write-protected.
Description | This data item is write-protected. To change this data item, first cancel write protection. For more detailed information, refer to the documentation of the drive manufacturer.
Response | Class | 3 | Abort NC program processing.
Solution | Class | 3 | Consult the documentation of the drive manufacturer.
Parameter | %1: | Current value [-]
Error message of the service channel
%2: | Identification number [-]
SERCOS ident number
Error type | 1, Error message from NC program.