4 Features and Functions
174 Keysight 34970A/34972A User’s Guide
Display control
For security reasons or for a slight increase in scanning rates, you may want to
turn off the front-panel display. From the remote interface, you can also display a
13-character message on the front-display.
– You can only disable the front-panel display by sending a command from the
remote interface (you cannot disable the front panel while in local operation).
– When disabled, the entire front-panel display goes blank and all display
annunciators except ERROR are disabled. All keys except
are locked out
when the display is disabled.
– The display is automatically enabled when power is cycled, after a Factory
Reset (*RST command), or when you return to local by pressing
.
– You can display a message on the front panel by sending a command from the
remote interface. The instrument can display up to 13 characters on the front
panel; if you attempt to send more than 13 characters, an error is generated.
You can use letters (A-Z), numbers (0-9), and special characters like “
@
”, “%”,
“*”, etc. Use the “#” character to display a degree symbol ( ° ). Commas,
periods, and semicolons share a display space with the preceding character,
and are not considered individual characters. While a message is displayed on
the front panel, readings from a scan or monitor are 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.
– Remote Interface Operation: The following command turns off the front panel
display.
DISPLAY OFF
The following command displays a message on the front panel and turns on
the display if disabled.
DISP:TEXT ’SCANNING ...’
To clear the message displayed on the front panel (without changing the
display state), send the following command.
DISPLAY:TEXT:CLEAR
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