Actually the SE input goes to the door board, and the door board takes care of reopening the doors. The door board sends the SE signal to the CLC through the communication line, so the CLC can handle timers and stuck devices and such. When then the CLC doesn't want the doors to open, it sends an inhibit signal to the door board(like when running up and down).

So if your edge is working good, and not reopening, then you probably have a bad door board(once lost the gate input on a door board, pretty rare).

All the comm line traffic can be seen on the door status 0,1 screen on your user tool.