User`s manual

When HP BASIC is used, the program’s ENTER @Dmm USING ...
statement is used to remove the Arbitrary Block header:
# - tells the computer to terminate the
ENTER when all ENTER
statements have completed.
X - tells the computer to skip the first character of the Arbitrary
Block header (#).
K,K - stores the <non-zero digit> and <block length> portions of
the header in the Ndig$ and Count$ variables respectively.
More information on the Definite Length Arbitrary Block format is
located in Chapter 4.
The ENTER @Dmm;Rdgs(*) statement enters the readings into
the computer. Since a Line Feed (LF) follows the last reading,
ENTER 70903;Lf$ removes the LF character from the multimeter
output buffer. If the LF character is not removed, Error -410 "Query
Interrupted" occurs the next time data is sent to the buffer. This
(third)
ENTER statement is only required when using the REAL data
formats.
Chapter 3 Using the HP E1326B/E1411B Multimeter 59