However, decoded data on the RFLink side is not the data I try to send.
Can you provide information about your decoder? It's hard to find documentation about this part (meter) of the protocol.
I made some changes to the lib in my own project [2] without success.
Any help would be appreciated

Regards,
Aurélien
[1]: https://github.com/pyrou/X10RF-Arduino
[2] : https://github.com/arcadien/tinySensor/ ... er/lib/x10