Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 140)

Chapter
Commands 10
10 -10
Use the NEW command to delete the program and all variables currently
stored in RAM. In addition, all variables are set equal to ZERO; all strings
and all BASIC evoked interrupts are cleared. The free running clock,
string allocation, and internal stack pointer values are not affected.
Syntax
NEW Return
Example
>NEW
>LIST
READY
>
Use the NULL command to set how many null characters (00H) you want
the BASIC module to output after a carriage return in a print statement
(page 11 -29). After initialization this value is set to 0. Most printers
contain a RAM buffer that eliminates the need to output null characters
after a carriage return.
Syntax
NULL ( integer) Return
Example
>NULL (10)
NEW
NULL