I will need to confirm this, but system macros are basically internalized trigger codes, I don't see any reason that you cannot create a system macro on XP8 #2 that only has an rm 433 from the the Zigby remote via the ZM 24

Ergo, Zigby remote has stand alone button, with attached system macro which was created on XP8 #2. The zigby remote sends its blip to the zm24 which is plugged into XP8#1 the system trigger is dispatched down the signal link to XP8 #2 and the macro is triggered.

I don't see anything that says this wont work, or see any reason why it should not?

I was using this logic for most solutions I came up with during replys to this thread, then I read some of the bulletins and all logic went out the window.

What seems logical and works with RM-433's, does not seem to apply to ZM-24's! (roaming, linking processors and only using one ZM-24, etc)

The good thing about this particular situation is that it is in your own home and you have the benefit of testing it out thoroughly and reporting back your findings.

I think on board with this logic even though I've never tried it.

It doesn't matter whether you have a zigbee antenna or not. When a remote communicates via zigbee it will output IR and if you have system macros you can create hex and have one processor send the IR signal to another which will issue a system macro (with a two conductor). If you could get three wires between the processors you could send/receive IR between the two processors. I don't think multiple processors create the same trigger code for a given system macro within the same system file but I would stay away from create two different system files because I don't know if those trigger codes would ever be the same for each file.

Link the two processors
-Basement XP8 IR out to Signal in on upstairs XP8
-Upstairs XP8 IR out to Signal in on Basement XP8
-Link grounds
Check IR passthru on both processors
Create the escient system macros for what you want to do on the upstairs processor (if you haven't already)
Open the upstairs processor and select Device and convert IR trigger codes
Select create T2+ trigger code
Every code corresponds to your system macro numbers (IF YOUR SYSTEM MACROS CHANGE, YOUR TRIGGER CODES COULD CHANGE)
Now you can paste those trigger codes to a button

If you want to get crazy you can create a hex file and add the commands into the IR library one by one. That way you can add those to system macros in the basement processor.

OK Brett says the direct link will not work between two XP8's with one of them being the Zm24 only.

however I have devised and Idea that might actually work. This involves creating two sets of system macros, one on each XP-8
ID lets me set up the scenario this way but I do not have two XP8's to test this out so I don't know for sure if this will work, but it goes like this.

Create a system macro on the upstairs XP8 with a command you want to execute from down stairs. give it a name like TV power on (B) put your IR or serial command in here

Now on the downstairs XP8 create a system macro and call that TV power on (A) Drag System Macro macro (B) into System macro (A).

On your Z remote make a stand alone button and create a macro on that button that includes system macro (A)
This in theory should trigger (A) which in turn asks the first XP8 to do the core of triggering (B). Hopefully we can bypass the Z limitation this way.

Give this a try and let me know if it works :-)

well I tried this out and it does not work.

The only thing that actually works is to create all the macros you need on the second XP8 and then export those as trigger codes, put those codes in a library and then drag & drop them into system macros on the first Xp8