When is an Updated ENI Necessary?

[todd_mm]

ENI Data

Under what conditions will I need to regenerate the ENI for a network?

• any change to node order (not counting swapping two identical products)
• additional/fewer nodes
• changed station alias or product code
• updated product revision (i.e. using a different ESI file)
• changing sample frequency
• changing EtherCATNodeInfo.xml

Documentation References

• ENI Topology
• FAQ: How do I change RMP EtherCAT controller sample from 1KHz to 4KHz?

(Is there other documentation about this?)

[nikolas]

All of the mentioned bullet points will necessitate regenerating the ENI file.

[todd_mm]

That’s good to know.
Are there other scenarios that I didn’t mention?

[nikolas]

Can’t think of any right now. As a rule of thumb, any substantial changes to topology (hardware or firmware) will require re-generation of the ENI.