Thank You ! ... I modifiy the code like in attachament, but now I have nothing on display ... After the line of code that I inserted it's need to put another's commands ? Only this single line it's not enough ?
( ..... Char = 18
call PrintChar

PosX=30 : PosY=1 : Gosub LCD_GotoXY

if TempH > 99 then
Char = 1
call PrintChar
else
Char = 10 ' + plus
if Predznak = 1 then Char = 11 ' - minus
call PrintChar
endif


Char = (temph dig 1)
call PrintChar

Char = (temph dig 0)
call PrintChar

Char = 12
call PrintChar

Char = (temperature dig 3)
Call PrintChar

goto main )