LON card indicates fault (unique name required) when multiple LON cards installed in the JACE-6E or JACE-7.
I/A Series G3, JACE-600, JACE-600E, JACE-700
The default name when adding a LON network to the G3 station is LON1. Both networks will attempt to use the same LON card (LON1) causing a fault condition.
Under each LonNetwork within the Lon Comm Config, specify a unique device name for each card or network (LON1 and LON2).