Hi,

Add 80h to the character address to make
the Display Data RAM Address Set command.
(When you add 80h you set bit 7).


$00 + $80 = $80
$40 + $80 = $c0

Code:
LCDOUT $FE,$80, "Hello on line 1"
LCDOUT $FE,$C0, "Hello on line 2"
Best regards,

Luciano