Can the Uno handle two serial port functions ?

Using Arduino Networking, Protocols, and Devices
2

irethedo:
I have an Ardunio Uno that I would like to connect the rxd (d0) and txd (d1) lines
to a serial device to send and receive data with that device.

I also want to echo data to the USB port to a PC to display the data in a Labview application.

Can the Uno handle these two serial port functions with d0/d1 and the USB port?

Thanks

No. However you could run a software serial library for the serial device and utilize pins 0 and 1 serial for the PC. The mega board does have four build in hardware serial ports if you wanted to go that way.

Lefty