Question about the protocol

[nicootje55]

Hi,

I try to monitor my TL1500-20 with all available SW i found on github.
The HW-version is v1.1
The SW-version is E1.00.

The RS485 communication is working fine but after receiving the serial number of my inverter the communication stucks.

The communication:
sending packet to inverter...
aa 55 01 00 00 00 10 04 00 01 14

sending packet to inverter...
aa 55 01 00 00 00 10 00 00 01 10

received packet from inverter:
aa 51 00 00 01 00 10 80 12 58 48 31 31 30 30 32 30 31 31 31 31 30 31 30 32 00 01 00 fa

sending packet to inverter...
aa 55 01 00 00 00 10 01 11 58 48 31 31 30 30 32 30 31 31 31 31 30 31 30 32 10 04 7d

After this send i do not receive any packet from the inverter.

The strange thing is that the inverter responds with AA 51 and not with AA 55.

Did you see such kind of behaviour in your journey througt the protocol?
I hope you can help me in finding the solution.

Tanks in advance,

Nico Kooij