Suppose a system has one MPPT (e.g. 100/20), we want to add a second one (100/20 or bigger), are there any special precautions and procedure to follow so to ensure that one does not step on another? Ensure they communicate with each other properly?
Other components in the system include MP3000/24, BVM712, 100/20, and Cerbo-GX which has been activated, but seems to be misbehaving at times and will need to be reset to factory and reprogrammed.
Where and how to check software versions of MPPT to ensure that the versions of old and new are the same?
What steps can we take after install to ensure they are working properly? What kind of symptoms and problems can we expect as signs that the two are not configured properly and working?