Hi All.

I'm hoping that someone with some experience in Infinisolar installations (Comms specific) might be able to assist.

Installation:

• 2x Infinisolar Super 4k's running in parallel. Parallel comms (9 pin rs232) installed and working fine.
• 3x Averge supplied Leoch 100ah batteries. Comms on RS485 b> and B>A and working fine.

Installing Solar Assistant monitoring Pi.

• Orange Pi 3 LTS installed.
• Leoch battery comms working fine.
• Inverter comms not working.

Challenges/Questions:

• The Solar-Assistant inverter cable is a USB to RJ45 RS232.
• The Infinisolar does not have any RJ45 RS232 outlets (only 9 pin outlets).
• I think I need to install a MODBUS card?

My assumptions below (and questions for confirmation)

Question 1:

• I think I need to install the Infinisolar MODBUS card in the Intelligent Slot on the inverter.
• This would give me an RJ45 RS232 port for the solar assistant cable to connect to the inverter.
• Is this correct?

Question 2:

• Would I need a MODBUS card on both inverters?
• Or will the modbus card on master give me data on both inverters via existing parallel RS232 9 pin cables?

Any help/advice from anyone running Infinisolars in parallel with comms would be greatly appreciated?!

Finally, if anyone has working second hand Infinisolar Modbus cards gathering dust, please let me know if your happy to sell them on to me?

Thanks,

Andy

The Infini has 2 options for RS232 Comms. There is depending on the model a USB port available as well as a RS232 RJ45 port that on one side with have a RJ45 that connects to a DB9 serial connector & the other side connects to a DB9 male or female then to a USB that would plug into the Pi. 

There are the 2 options at your disposal. I will try to send pics if I can find these cables spare in my garage. 

Ok I found some pics on the web. The below is what's required & when plugged into the Solar Assistant will work. 

Edited January 6, 20232 yr by Steve87