I can't find the manual that Fanuc sent me in a timely manner. It was a fairly generic manual.
I didn't buy the devicenet motherboard along with the dotherboard from Fanuc, I bought them used and tested on eBay.
I thought I mentioned, maybe I didn't, that the health light is red. Do you think there may be an incompatibility between the rj3 controller and the DN4 dotherboard?
When I ordered the new software and the devicenet license from Fanuc, I talked to them about the motherboard model but never about the dotherboard.