I'm working on creating a virtual canopen slave with python to communicate with an existing master. when running my script I keep getting this error "no sdo response recieved". As far as I know, I need an sdo server to send response to the master, is it possible to create a virtual sdo server that does the job? otherwise, does anyone have an idea on how to fix that problem?
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Yes, it's possible to create a virtual CAN device that will have a SDO server. You can use it together with virtual CAN bus (vcan on Linux) to test your CAN communication before you have your hardware available.
From the tags in question I assume you use python-canopen. So you can use this one https://canopen.readthedocs.io/en/latest/sdo.html#canopen.sdo.SdoServer, that will read your
node.edsornode.xddfile. Run this Python script in one terminal. Remember to usevcan0interface.network.connect(channel='can0', bustype='socketcan')vcan0interface.