Hi, as already posted these are the messages 0x428 and 0x4F7. Unfortunately I only partly know the meaning of these two messages.
So what I did is to replicate the messages from the charger in four states:
No charge -> Charge (see diagram)
Message 0x429 is static and can be replaced by exactly that Byte array shown in the diagram
Message 0x1C7 is containing the interlock states of the connectors of the BCB in B0/B1 and in addition the Pack Voltage. You can send B0/B1 static as depicted (=all connectors connected) and the pack Voltage dynamically (not sure what module needs this message).
Message 0x444 is not part of the Renault protocol. I use this address for communication between my two controllers.
I can share my PCB Design, please send me a PM.
Cheers
Andreas