Local $sStr = '120 233 205 17'
Local $aTmp, $sHex, $iLen
$aTmp = StringSplit(StringStripWS($sStr, 7), ' ')
For $i = 1 To $aTmp[0]
$aTmp[$i] = Int($aTmp[$i])
Switch $aTmp[$i]
Case 0x00 To 0xFF
$iLen = 2
Case 0x0100 To 0xFFFF
$iLen = 4
Case Else
$iLen = 8
EndSwitch
$sHex &= Hex($aTmp[$i], $iLen)
Next
ConsoleWrite($sHex & @TAB & $iLen & @LF)