The 4000 Series comes fitted with USB and GPIB interfaces as standard.
To change the GPIB address, press the 'Main Menu' key from the main screen.
Then Press 'Config'. When prompted enter the Passcode (Default 1234).
Then Press 'Config' again to access the secondary configuration Menu.
Select 'Set GPIB Address' using either the 'Enter' Key, the 'Select' Key or by pressing touching the menu item.
Enter the required GPIB address using the keyboard, followed by the 'Enter' key.
A dialog will appear to confirm that the GPIB address has been changed.