The LCD does not inherently support the Marqee type running display. You probably will have to emulate that in software. E.g. Put your string inside a string variable:
A$ ="Buenos dias bienvenidos a la empresa xxxxxxxxxxx"
Then you can periodically display a substring from a different starting location:
N = N+1
IF N > LEN(A$) RETURN: ENDIF
B$ = MID$(A$,N,16)
SETLCD 1,1, B$+" "
If you run the above function every 0.2s it should show a running display.