The following topics can help you learn more about controlling the PNA using SCPI and the GPIB.
COM versus SCPI
GPIB Fundamentals
The Rules and Syntax of SCPI Commands
Configure for SCPI / SICL over GPIB
Configure for VISA / SICL over LAN
Calibrating the PNA Using SCPI
Getting Data from the PNA using SCPI
The PNA as a USB Device
Remote Control of SCPI USB Devices Connected to a PNA
Reading the PNA Status Registers
New Referring to Traces, Measurements, Channels, and Windows Using SCPI
Synchronizing the PNA and Controller
Shut Down the PNA Remotely
See more PNA programming information and examples at:http://na.support.keysight.com/pna/programming/