User`s guide

condition, the instrument will accept "ON" or "1". When you query a boolean
setting, the instrument will always return "0" or "1". The following command
requires a boolean parameter:
VOLTage:DC:IMPedance:AUTO {OFF|0|ON|1}
ASCII String Parameters
String parameters can contain virtually any set of ASCII characters. A string
must begin and end with matching quotes; either with a single quote or a
double quote. You can include the quote delimiter as part of the string by
typing it twice without any characters in between. The following command uses
a string parameter:
DISPlay:TEXT <quoted string>
For example, the following command displays the message "WAITING..." on
the instrument's front panel (the quotes are not displayed).
DISP:TEXT "WAITING..."
You can also display the same message using the following command with
single quotes.
DISP:TEXT 'WAITING...'