There are two devices. Both have RS485 configured. In a device with firmware TRB1450_R_00.01.05, the transmission is working properly. RS485 does not work in a device with TRB1450_R_00.02.04.3 firmware.
What could be the problem ?
Tried updating TRB1450_R_00.02.04.3 to the latest version. It ended unsuccessfully. The device stopped responding through the web-interface.