What about the communication cable between batteries, is that the white cable for the RJ485 ports?

And just to verify also, I should have battery 1, bit 1 on, and bits 2,3, and 4 off; and on battery 2, I should have bit 2 on, and bits 1,3, and 4 off?

What about the communication cable between batteries, is that the white cable for the RJ485 ports?

What happened is that when I turned off the battery and the inverter, the solar panels were still producing voltage, and so my inverter was making the clicking sound. But when night time arrived and my solar panels were not producing power, the inverter stopped clicking. Thank you for your response.