i am trying to drip feed from a pc to a fanuc om... i actually have a post from before but it was never fixed. think my best approach is to start over fresh. that said i have bought an in line tester so i can tell if the pc and controller are communicating. i am getting an 087 alarm.

what is the first thing i should check...

and does anyone know what lights on my inline tester would light up if the controller was telling the pc to stop sending.

i know my controller will drip feed because i have done it before...
i have messed with the baud rate...
i have slide the fifo buffer down on the pc..
i am almost positive it is a situation where the pc is ignoring the controller or the controller isnt telling the pc to stop...