I have also review all code blocks to make sure everything grouped properly and all was fine.

Are you sure your code now looks something like this?

    if ($ODP1Dir eq "OUT" || $ODP1Dir eq "DOWN") {
      if (length($ODP1Val) != 0) {$ODP1Val = '-' . $ODP1Val;}
      if ($ODP1Dir eq "OUT") {
        $ODP1Dir = "IN";
      } else {
        $ODP1Dir = "UP";
      }
    }
[download]

Note also that you need eq instead of == to do a string comparison...