Two way can be followed to obtain the deletion of all registers contained in the ram cmos:

1.Start the module by simultaneously holding down all 4 buttons on the CPU (FEED+, FEED-, ADV and MODE) until code 63 appears on the alphanumeric display with LEDs L7 and L8 on, then release the buttons

2.Use the CMOS_RESET directive (from operating system). In this case once the memory reset is finished, the module will be restarted automatically

NOTE: If the mapping of the retentive registers area is changed (RTE.CFG) RTE generates alarm 1 User Registers loss and imposes memory loss.

NOTE: On RTE update, only in versions where this area is changed, RTE generates alarm 2 Parameter Registers loss and imposes memory loss.