I have installed BMX DDI 1602 in 4-slot Backplane alongwith AC power supply and CPU for testing purposes. When I build a test code and transfer the file from project to plc, I get a message that says " A submodule which contains no configured channels cannot be animated". When I debug the Module after confirming run, Channel error shows external fault-external supply. I am confused as to what should I do to remove this error?