The system is now working exactly as i had expected but i did have problems i hope you can shed some light on.
When using 2622158 I got the above warning so i updated to 2622552 (latest version) however, the inverter then showed low voltage and would not switch on. At first i thought it was the VE Bus cable but soon found it was not though this appeared to indicate that the CCGX and Multiplus were not communicating. Finally, i decided to roll back to an xxxx4xx version of firmware and chose 2622459 and with little more than loading the original configuration it is now working fine. I have of course disabled auto update.
Is there a hardware sunset for firmware upgrades or could something else i did have caused this? I am reluctant to try upgrading again but could do it if there is an explanation that maybe i took too large a leap in firmware versions and needed to settle on an intermediate first?
Edit: After i wrote this a link to another thread popped up
I can confirm that the VRM is still seeing the old 159 version which was the nearest to a total roll back i could get before i then tried the above xxxx4xx intermediate. I would have thought the VRM was more of a reporting and SCADA system than an integral part of local control.