Hi everyone, I’m trying to communicate with red node to a ballast via an RS485 to USB converter. This ballast is used to light some lamps.
I have the ballast configured for communication via RS485, connected to the RS485 to USB converter, and the Node-RED IN serial is configured on the correct port and baud.
I did this basic serial communication test, but I don’t get any debugs:
I enclose the ballast manual:
I hope you can help me send hexadecimal commands that are detailed in the manual as I do not handle this part very well. I’ve worked with Modbus, but not with pure rs485.