User`s guide

3-4
Programming over GPIB
Addressing
Addressing
To set up the GPIB interface (optional Agilent N2757A GPIB Interface Module
must be connected to the oscilloscope), refer to the “To set up the I/O port to
use a controller” topic in the Utilities chapter of the User’s Guide.
• Each device on the GPIB resides at a particular address, ranging from 0 to 30.
• The active controller specifies which devices talk and which listen.
• An instrument may be talk addressed, listen addressed, or unaddressed by
the controller.
If the controller addresses the instrument to talk, the instrument remains
configured to talk until it receives an interface clear message (IFC), another
instrument’s talk address (OTA), its own listen address (MLA), or a universal
untalk command (UNT).
If the controller addresses the instrument to listen, the instrument remains
configured to listen until it receives an interface clear message (IFC), its own
talk address (MTA), or a universal unlisten command (UNL).