As you indicated, the User Manual of the dS2824 doesn’t seem to mention that the relays can be controlled through USB or RS485.
It only states that it can be controlled graphically over a secure webpage or by ASCII, Binary or Modbus commands over TCP/IP.
The USB or RS485 connections seems to be only used for configuring the board or updating the firmware.
We have contacted the manufacturer to confirm. We will post their reply here.
Hello, I bought the DS2824 board, and I cannot configure it.
For the configuration, must the USB cable and the Network cable be connected simultaneously?
Thank you.