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rogersia / Solis-4G

Python project to Read Solis-4G inverter over RS485
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Connect Device #1

Closed henriz closed 5 years ago

henriz commented 5 years ago

Hello,

I have a Solis 1500 4G mini. It has a 'COM' port. According to solis , the pinout for this port is:

1 = 5v 2 = GND 3 = A (+) 4 = B (-1)

I have this hooked up to a raspberry pi using an RS485 pi hat. On both sides I put the 120ohm terminating resistor between A and B.

As far as I know, now I should be able to use your script, however, I get no data at all, either using /dev/ttyAMA0 or /dev/ttyS0.

I'm using a pi zero.

So, my question is, how have you connected your device to the Solis 4G?

henriz commented 5 years ago

Ah.. as always, the problem was resolved shortly after posting this issue.

It turns out, the resistors aren't needed. It's working fine now.