Display Control - HP 33120A User Manual

Function generator / arbitrary waveform generator
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Chapter 3 Features and Functions
System-Related Operations

Display Control

To speed up the rate at which the function generator can make
configuration changes, or for security reasons, you may want to turn off
the front-panel display. From the remote interface, you can also display
a message containing up to 11 characters on the front panel.
The display can be enabled/disabled from the remote interface only.
• When the display is turned off, output parameters are not sent to the
display and all annunciators except
Front-panel operation is otherwise unaffected by turning off the display.
• The display state is stored in volatile memory; the display is always
enabled when power has been off or after a remote interface reset.
• You can display a message on the front panel by sending a command
from the remote interface. The function generator can display up to
11 characters of the message on the front panel; any additional
characters are truncated. Commas, periods, and semicolons share a
display space with the preceding character, and are not considered
individual characters. When a message is displayed, information
relating to the output waveform (such as frequency and amplitude)
is not sent to the display.
• Sending a message to the display from the remote interface overrides
the display state; this means that you can display a message even if
the display is turned off.
• The display state is automatically turned on when you return to the
local (front panel) state. Press the
from the remote interface to return to the local state.
• Remote Interface Operation:
DISPlay {OFF|ON}
DISPlay:TEXT <
quoted string
DISPlay:TEXT:CLEar
The following command string shows how to display a message on the
front panel.
"DISP:TEXT 'HELLO'"
112
and
are disabled.
ERROR
Shift
key or execute LOCAL 710
Shift
Disable/enable the display
Display the string enclosed in quotes
>
Clear the displayed message

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