baxtmi

Afternoon, I'm using Pylontec batteries, so they communicate with the inverter over CAN, rather than RS485. Using this (https://www.robotics.org.za/W4738) as the interface, and then wiring onto the various D1 ports via a bread board and some jumpers. In terms of cable, I had some left over cat6 ethernet cable, and some spare RJ45 clips, so that was the end that went into the inverter, and then the side that came into the RS485 converter was either one of the outside pairs onto the A and B inlet port.

Morning. Been following this thread and it's managed to answer just about all the questions I had on interfacing with the Sunsynk inverters via RS485. I went a slightly different route, using an RS485 converter which feeds into the serial port of a D1 mini, which then broadcasts the data via MQTT to my node red raspberry pi. The issue I'm having, is that because I have 2 inverters in parallel, one is designated slave and the other a master. I can configure the D1 as a master node and extract the info I want from the slave inverter, however, the same system doesn't work for the master inverter. The only other alternative I can come up with is to make the D1 a slave node, but then how does one get a slave node to request data from a master node?