User`s guide

64 Agilent 34980A Mainframe User’s Guide
3 Features and Functions
Front Panel Features
Front Panel Display
The 34980A features a dual- line, alphanumeric display, plus a set of text
and symbolic annunciators to indicate operational modes and error
conditions.
At power on, all segments on the front panel are displayed and all lighted
keys temporarily turn on. The front panel is ready for operation when the
keys are no longer lit and the green channel field on the display shows the
first slot in which a module is installed.
Displayed Messages
The two- line display is context- sensitive; the nature of information
displayed will depend on if you are navigating the configuration menus,
switching between module and channels or viewing measurements
Module and Channel Status
When not in a menu, use the arrow keys to scroll through the (up to
eight) modules installed in the 34980A, and the knob to scroll through
available channels.
With each press of an arrow key, the upper display line indicates at left
the channel in use, in the form sccc, where s is the slot number for
that module and ccc is the channel number. When you stop on any
module, the upper display line will display at right the module type
briefly, then change to display channel information. Scrolling through
the modules will only show information for installed modules, skipping
over unused slots. For detailed examples of the slot and channel
numbering scheme used in the 34980A, see “Slot and Channel
Addressing Scheme” on page 166.
Menu Choices
During menu- driven operations (e.g. measurement configuration), the
primary display line indicates the configuration feature or menu, and
the second display line indicates the submenu, configuration choices or
parameters. The second display line also displays temporary messages,
when exiting menus or to convey configuration state changes.
Readings
During measurement operations, the primary display line shows the
measurement reading and selected measurement function, and the
second display line can be enabled to display secondary measurements.
Annunciators
The annunciators provide indications of communication mode, analog
bus connectivity, trigger status, alarm conditions and more. For a
complete description, see “Annunciator Display Indicators” on page 25.