User`s guide

Remarks
RDG_STORE is volatile, and the readings are lost on power-down unless
the readings have been copied into non-volatile memory.
For the 34410A, RDG_STORE can hold up to 50,000 readings, all of which
are copied into non-volatile memory.
The 34411A/L4411A increases RDG_STORE (volatile memory) space to
1,000,000 readings. However, non-volatile memory space remains fixed at
50,000 readings. For the 34411A/L4411A the DATA:COPY NVMEM,
RDG_STORE command copies only the first 50,000 readings from
RDG_STORE into non-volatile memory.