User`s manual

97
Chapter 4 Features and Functions
Display Control
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Display Control
You can turn off the 3499A/B/C display (for security or increased
processing speed for example). You can also write a message of up to 13
characters to the front-panel display.
Note The display cannot be turned off from the front-panel.
•
When the display is turned off, the entire front-panel display goes
blank except for the ADRS and RMT annunciators (the ERROR
annunciator will also be on if there are errors), and all keys except
Local are locked.
•
If the display is turned off, pressing Local causes the instrument to
return to local operation, the display will be turned back on.
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The display is automatically turned on when power is cycled, or after
a RESET command.
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When the display is on, you can send a message (up to 13 characters)
to display on the front-panel from the remote interface. If you attempt
to send more than 13 characters, only the first 13 characters can be
displayed. The characters can be letters (A-Z), numbers (0-9), and
some special characters (“ ‘ space ( ) * + - , . : ; / \).
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Remote Interface Operation:
OUTPUT 709; “DOFF”
! Turn off the display.
OUTPUT 709; “DON”
! Turn on the display.
OUTPUT 709; “DISP Scan finished.”
! Display the message on the
front panel.