Sigh…
No progress. So it seems like its some kind of hardware / communications issue.
After getting all of this stuff up and running, I’m still not able to see any data, and node red is showing on the ModBus Read flow, there is a setting “inverter” in the middle.
This just keeps flipping between "active’ “initialise” “init” and “reconnecting”
Also, if I check the MQTT topic, I can see no data being generated.
So, something like this:
mosquitto_sub -d -u "mosquitto" -P "mosquitto" -t SunSynk/# --insecure -h 10.0.0.200
Just returns:
Client (null) sending CONNECT
Client (null) received CONNACK (0)
Client (null) sending SUBSCRIBE (Mid: 1, Topic: SunSynk/#, QoS: 0, Options: 0x00)
Client (null) received SUBACK
Nothing more.
I’ve tried this by changing the settings in NodeRed to both direct ttyUSB0 serial 9600 as well as compiling the and running mbusd which then attaches to localhost port 502 and changing node red to use TCP
(See attached images)
So, anyone got any ideas how I can perhaps diagnose this?
I’ll try and use another usb-rs485 adapter and see if I can run a modbus server.
Again it seems like there is a hardware / comms issue here, nothing more.