RS232 interface protocol

Hello,

I would like to control the SmartSolar via RS232
(using a VE.Direct to RS232 interface).

Is there a way to obtain information about the protocol used by the RS232 interface?

The interface is just a hardware level converter from VE.Direct voltage levels to RS232 levels.
At the RS232 end you’ll have the information specified by the VE.Direct protocol.
Information here: Technical information - Victron Energy

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