RFID Serial Output

Does anyone have a solution to get serial output for a PLC from a XR450 or FX7400?

I'd like to put a program on the reader that handles sorting the RFID inventory data and only sends the EPC data for the tag that we determine is in the field to a PLC with a serial port.  The XR's serial port is for configuration only and cannot be used.  The FX doesn't have a serial port.

Has anyone used a serial device server or have any thoughts as to another possible solution?