@eric That is what I have set up and all is now working fine. I got confused by this EG4 document. which shows using the RS485 port. There is too ...

Which inverters are you using?

Are you seeing any lights on or blinking on the dongle?

Here is a diagram on how to connect the batteries to each other and to the inverter. Also, having the inverter on Lithium brand "1" is the best protoc...

@quailfarmer If there is proper communication between the inverter and batteries it should show the AH. Have you tried clicking up and down on the arr...

I updated the firmware of the batteries, still no joy

it is recommended to cycle battery when on an on-grid net metering system which uses battery as back up to prevent long periods of time at 99%-100% SO...

I am looking for the assignment pin for BMS Communication Port for RS485 protocol vs. Conext-XW Schneider. To be able to access communication.

You might check out the following thread: Hope it helps, JB

well that was right in plain sight. still not readable but i can figure it out with a voltmeter. a std amazon usb to 232, cut off the db9, splice...

@kubota Here is the link to the cable, it is the second Pic EG4 RS232 Firmware Update Cable - LL - Signature Solar