Cause : PROFIenergy energy-saving mode active comes when the PROFIenergy energy-saving mode is active
Alarm value (r2124, interpret decimal): Mode ID of the active PROFIenergy energy-saving mode. See also: r5600 (Pe energy saving mode ID)

Remedy:

The alarm automatically disappears when the energy-saving mode is exited.

Note: After receiving the PROFIenergy command "End_Pause" via PROFINET, the energy-saving mode is exited.