this post was submitted on 29 Jun 2025
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Yes, I first found out about MorningStar when I was trying to find a charge controller that had a proper network port and didn't need a stupid app to configure it. I bought one and I really liked it, so I have 4 of the now.
I've spent a couple of years trying to find a decent inverter (eg. not cloudy and supports standard protocols), and it has been hard work. So far so good with this one, although their modbus support is buggy :(
The modbus issues are pretty common with MorningStar - try setting your request delay to 200ms and disable any function code 23 requests, fixed most of my comunication problems when I integrated mine with Home Assistant.
Thanks! I will check that out. It's a shame, as their hardware is otherwise pretty reliable. I expected better from them.
Over here, no experience with ModBus yet. One customer might want an application, but in my own house, they're all air gapped and I program them with buttons. :)