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Epicycler asked

Response to Battery Charge Current Update with MPPT Hex Protocol Version 8

Thanks for implementing battery current update in latest MPPT firmware version. It nicely complements allowing adaptive absorption time to be turned off (useful for my Lithium with very variable charge rates).

What response should I receive from MPPT firmware version 1.44 when updating the Battery Charge Current with Hex Protocol. Register is 0x200A

0x200A Battery charge current (*8) 0.001 sn32 A

I think I'm receiving "1" which looks promising but I'm more used to seeing the new setting echoed back to me when changing values.

Sent:- :80A200030F8FFFFFD which represents 2 amps.

Returned:- :80A200122

Does this response indicate update successful?

MPPT Controllers
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2 Answers
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Epicycler answered ·

does anyone have a valid command to set charge current with register 200A?

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Epicycler answered ·

if I send 18 characters :80A200030F8FFFFFD

or 16 characters :80A2000E085FFBF (which I think is -968 amps)

Seems I get back :80A200122 regardless of what I send.

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