Hi all, finally back from CO where we finally got the cabin plumbing OKed by the inspector (and got the thing basically finished).

Tom is correct, NOP means Non Operational or Inoperative.  In this case it means the EC2 is not commuicating with the EM2. Either the two serial wires between them are not connected properly or an ungrounded condition or wiring error has blown one of the serial connections. The Auto Program mode will not work in this condition.

Tracy  (still bleary after non-stop drive from Colorado)