View sent SDO raw data

[TK603799]

Is it possible to see the bytes of the sent CAN message in case of a SDO write transfer? (can_obj.write_sdo(index, subindex, val)

[acolomb]

I think the easiest way here is to use an external CAN bus sniffer like candump on Linux or Wireshark. For Windows, depends on your interface.

You could just subscribe to the corresponding COB ID on the bus object. There is a parameter on the interface implementations to receive own messages, so that your subscribed callback is invoked even for messages sent through the library.

[TK603799]

I would prefer an event provided by the library which with I can crop the message that is sent. Makes an integration into a tool easier where I use this library.

[acolomb]

How about deriving your own class from Network and overriding the send_message() method? You could add whatever needed logging before calling the base class implementation. Not limited to SDO though, that would be a bit more involved because the SdoClient class is instantiated automatically in each node.