I have located a restriction for pcf code size - 119 bytes as maximum. It is possible to vary codes btw size and precisioin - so this is next version, that corresponds for this restriction:

[Link: rapidshare.de]

My RU990 fires the codes (in stead of previous try, as I detect).
The codes was loaded from remote ARC424A1, and are the same with two other Daikin IR remotes, excepting the modes - some models has, say, "DRY" mode, and others - not.

I have chechked - the Daikin DMS-IF interface is for "big" conditioneers, and I can't check if it work with split systems, RTFM (my deutsch is 0).

Also, the HomeVision gadget ([Link: csi3.com]) may convert IR->RS232 - it may help to build a control way :)