I can't get information from CAN bus, only heartbeat packets

I can’t get information from CAN bus, only heartbeat packets

The restart command I send can be executed correctly, and the command to get the information has not received a reply, but ODrive has been sending heartbeat packets, and nothing but heartbeat packets can be received.

Is it wrong with ODrive settings?

Make sure you set the RTR bit (frame.rtr = True) when sending request packets