Using two or more CUL or CUN devices with MAX! EQ3 heating devices

[chapelhill]

Hi all.

Sorry for posting in English, but prefer not us use google transalate and pretend I can post in German.
I am migration from using two MAX! cubes to usng CUN devices.
I cannot see any examples of how the second CUN should be declared in the FHEM.cfg file or what logic must be used.
I was using two MAX! cubes as there are quite a few rooms and radiators and I had them split between the cubes.

With the below config I get the message There is already one CUL_MAX defined
So if you can only have one CUL_MAX in the system how do you use additional ones?

The only reference I found was to CUL_RFR which adds the CUN device as a range extender and i could not find a complete example of that either.
Many thanks
Regards
Chapelhill

#####testing for cul device
define testcul CUL ###.###.##.###:2323 0000
attr testcul rfmode MAX
attr testcul sendpool cun2,testcul


define FileLog_testcul FileLog ./log/testcul-%Y.log testcul
attr FileLog_testcul logtype text
attr FileLog_testcul room MAX


define cun2 CUL ###.###.##.###:2323 0000
attr cun2 rfmode MAX
attr cun2 sendpool cun2,testcul
define FileLog_cun2 FileLog ./log/cun2-%Y.log cun2
attr FileLog_cun2 logtype text
attr FileLog_cun2 room MAX

define cm CUL_MAX 123456
attr cm IODev testcul

define cma CUL_MAX 213456
attr cma IODev CUN2