BNC 630 - Manual (Page 16)

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4.0 The keys
4.1 Mode key
The Mode key is used to change the operating mode of the 630. When pressed, the LCD display is cleared and the question:
Mode?
is displayed. The Mode key acts as a shift type key in that the meaning of each button on the front panel changes to that described
by the blue wording beneath it. To enter Sweep mode, for example, first press the Mode key and then press the number 4 key.
You can exit the Mode? question by pressing the blue Mode key again. The display returns to the previous mode unchanged.
Some modes are available on the 630 that are not printed on the front panel. To access these modes, press the Mode key, and
then the Clear key to bring up a scroll menu from which you can select one of these extra modes.
4.2 Field Arrow Keys
These keys are used to move the cursor to the numeric entry field that you wish to edit. Each time the key is pressed, the cursor is
advanced to the next field on the display. The cursor position is indicated by a flashing character.
When the cursor is advanced to a new field, it is placed at the last-used position within that field. You then use the è or ç keys
to move the cursor side-to-side within the field.
One of the valid cursor fields is "off". When the cursor is off, (i.e. there are no flashing characters anywhere) then all numeric
values are frozen and cannot be changed until the cursor is switched back on. This feature is designed as a "lockout" function to
safeguard parameter values from being changed by inadvertent key presses or turns of the rotary knob.
4.3 Recall / Store key
This key is used to store or recall an instrument setup to or from 10 storage locations in non-volatile memory. By using the
Store/Recall function, you can save all operating parameters so they can be quickly recalled even though the unit had been switched
off or unplugged. The offset voltage and currently-selected RS232 baud rate are also saved.
If the instrument setup is saved while the unit is in Arbitrary Waveform mode, the currently-loaded arbitrary waveform is stored to
nonvolatile memory. Although mode parameters such as Clock Frequency, Level, etc. can be saved to 10 locations, the arbitrary
waveform is always saved to/recalled from a single location. The entire waveform array of up to 32,768 points is saved.
To recall an instrument setup, press the Store/Recall key once. The LCD display will be cleared and the question:
Recall (0-9)?
will appear, asking you to press a numeric key 0 to 9 to select one of ten available locations to use. You can abort this question
without saving a configuration by pressing any key other than 0 to 9 .
If you then press the 5 key, for example, the display will show
Configuration recalled from location 5
to confirm the recall operation.
To save an instrument setup, press the Store/Recall button twice. The LCD display will be cleared and the question:
Store (0-9)?
will appear, asking you to select one of ten available locations to store the configuration. You can abort the question without
recalling a configuration by pressing any key other than 0 to 9 .
Note:
Location 0 is special. The instrument state stored to location 0 will be recalled on power-up. This includes the serial port
baud rate.