Hello,
I'm trying to write and read from an MPPT 100. I believe I understand the code for writing commands, but I keep getting framing errors, and I think it's my checksum.
Example. I am trying to get the battery maximum current. The command should be:
3A 37 46 30 45 44 30 26 0A
3A = start
37 = Get command
46 30 45 44 (reg ID from EDF0, converted to little endian hex)
30 = flags, set to zero
26 = checksum
0A = end
I can't find anything wrong with this, but when I sent it I get a framing error of 4AAAA. Can someone please explain what I'm missing?
Thanks
AKG