The software is "PL7 Pro". The part number is TLXCDPL7PP45. This software will run on a Windows 7 32 bit machine with the installation of SP5 . It will not run on a 64 bit operating system.
Part number for a USB cable is TSXCUSB485 + TSXCRJMD25.
If you prefer a serial cable the part number is TSXPCX1031.