GPIB
370B User Manual
4-17
Loading Setting into the 370B. To reverse the above process for settings stored by
the controller, simply take the appropriate settings string from wherever it has
been stored and send the string back to the 370B. There is no need for any
preface or other command since the settings string is made up of the very
commands that are needed. When it is necessary to break the setting string, as in
BASICA, the break should occur where a semicolon would normally appear and
that semicolon should be dropped.
The following examples use the settings strings that were saved in the preceding
set of examples.
IBM PC:
700 CALL IBWRT(DEV%,SETA$)
710 CALL IBWRT(DEV%,SETB$)
Hewlett Packard 2001300 Series:
700 OUTPUT 710,SET$,END
If the settings were stored in the mass storage, it’s necessary to know which of
the 70 memory locations was used. Then send the command RECall <NR1>,
where the number, <NR1>, identifies memory location.
While these procedures can change settings quickly and without error, the
operator may have to make a few manual settings (e.g., the OUTPUTS breaker
and the position of the protective cover). One way to remind the operator what
needs to be done is to send a message using the text display area of the 370B
screen. Send an appropriate message of up to 24 characters using the TEXt
<string> command.
Once the 370B has been set up to make a desired measurement, the next step in
realizing the advantages of digital storage is to acquire and store the data with
the 370B. From the controller you can store it on other media, compare it with
other data, calculate with it, or display it.
In most cases, acquiring data with the 370B involves two parts, both done
automatically by the instrument. The first is to code the necessary scale factors
and other parameters into a series of words and numbers. The words are English
but are standardized so they can also be read by a computer. This part of the data
is called the preamble.
Data Storage and Transfer