I have a real CAN-network with one device connected. This device tries to interact with another node that I want to simulate by a LocalNode object, which workds fine. I created an object dictionary with one ODVariable with the particular index and subindex on which the real device tries to perform an SDO Download (e.g. 0x1F51, 0x01) and assigned it to the LocalNode object.
The SDO Download completes successfully what I can observe via candump. However, when I try to access the value via the object dictionary from the local node, I can't see the updated value but the default one from the initialization. The only way I can access the updated value is via "node.sdo[0x1F51].raw", which is an SdoVariable and not the original ODVariable. At this point, I can not provide any subindex and when a second ODVariable got assigned before with the same index but different subindex, I only can check the updated value from the most recently added Variable.

I don't know if I understand wrong the concept of the different variable classes, but my guess was that the object dictionary of the LocalNode gets updated when another Node performs SDO Downloads.

If not, how can I access an Variable with index and subindex?