Get file from FTP to SAP Server

Hi expert

I want to get file from FTP to SAP Server. I tried using code as below. I suspect that about path in al11 which file from FTP is transferred to. Can I specific path al11 for pasting file from FTP?

CONCATENATE 'get' filename INTO cmd SEPARATED BY space.
CALL FUNCTION 'FTP_COMMAND'
    EXPORTING
    handle        = mi_handle
    command       = cmd
    TABLES
    data          = mtab_data1
    EXCEPTIONS
    tcpip_error   = 1
    command_error = 2
    data_error    = 3
    OTHERS        = 4.