Hello,
We have Bluesolar MPPT 150/60 in our system. When I read this device, I get abnormal messages after Checksum. I am attaching my data information below. It would be great if you could help us understand these messages or how to deal with them. Thanks in advance. 
Hi,
These messages are so called VE.Direct HEX messages. They are described in our VE.Direct documentation that can be found here: https://www.victronenergy.com/support-and-downloads/technical-information
Kind regards,
Thiemo van Engelen
Thank you for your reply.
In our system, we have one SmartSolar MPPT 75/15 and BlueSolar MPPT 150/60 rev2. smart solar is giving data as per the protocol but not BlueSolar. In Bluesolar I am getting abnormal messages after checksum which are not explained in the document. Here I am attaching images of both MPPTs.
I need help to deal with those messages from Bluesolar. Your ideas will be appreciated. Thanks in advance.
Hi,
Have you also read the VE.Direct HEX documents? The structure of these messages is described there. More information (and a reference implementation) can also be found here: https://www.victronenergy.com/live/vedirect_protocol:faq
In short, it starts with a ":" and ends with an new line (\n). As these characters can also occur in the checksum of a regular text frame, the reader should be aware whether it is expecting the checksum byte of the text frame or not. If so, it should not treat the ":" as the start of a hex message. Otherwise it is always the start of a hex message and it should ignore any data until it receives a \n (that is when you want to ignore the data in these hex messages).
Kind regards,
Thiemo van Engelen
