I am facing a communication problem between 1769-SDN and powerflex 700.Compact logix PLC is showing Powerflex 700 node is not ready even with devicenet adapter showing all LEDs solid green.But on powerflex 700 HIM showing DPI port 5 fault.Please tell me what will be the issue.I tried to replace the devicenet adapter with a new one.Then 1769-SDN is showing error 77 on it.From the manual i came to know that error 77 is "data mis match".How it can happend with the same VFD with same parameters and new Devicenet adapter.Is it a adapter problem.How i cam solve this problem.Anybody please advice me.