B&K Precision 4079 - Manual - Manual (Page 35)

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OFFSET 0.00 V Zero offset
REPETITION 10 ms Internal trigger rate
MODE CONT Waveform mode
N-BURST 2 Waves per burst
START ADRS 1 Start memory address
WAVELENGTH 1000 Number of points per waveform
TRIG SOURCE EXT External trigger source
OUTPUT OFF Output disabled
SWEEP OFF Sweep execution
MODULATION OFF Modulation execution
3.11 Memory
The waveform generator uses a non-volatile FLASH memory for storing arbitrary waveform data and front panel settings. Up
to 4,000,000 points Arbitrary waveform and 50 front panel settings are stored. These front panel settings can be used to store
starting address and lengths of many different waveforms stored in memory as reference points for quick recall.
Because it is impossible to guarantee 100% of the time against loss of stored data, you should maintain a record of the data
stored in memory so that you can manually restore such data, if necessary.
3.11.1 Nonvolatile Flash (Arbitrary Waveform Memory)
The FLASH stores the arbitrary waveform memory at power off, which the waveform generator uses to store the data points
that make up an arbitrary waveform.
The FLASH also stores the settings storage buffer, which the waveform generator uses to store up to 49 front-panel
setups. For more information about the settings storage buffer, see SETUPS key earlier in this section.
Because it is impossible to 100% guarantee against loss of stored data, you should maintain a record of the data stored
in memory so that you can manually restore such data, if necessary.
3.11.2 Dynamic RAM
The DRAM stores waveform output. For arbitrary waveform output, the waveform generator loads the selected
contents of the FLASH (arbitrary waveform memory) into the DRAM. In order to save the arbitrary edited data in the DRAM
memory, the instrument will display a message " SAVE DATA" after each modification of the arbitrary
waveform in the EDIT menu.
3.12 Displaying Errors
At power-on, the waveform generator performs a diagnostic routine to check itself for problems. If the diagnostic routine finds
an error, an error message is displayed. The waveform generator also displays error messages when front-panel settings are
either invalid or may produce unexpected results.
Error messages for Model 4076 and 4079
Message Text Cause
Out of range Attempt to set variable out of instrument limits.
Setting conflict Can't have this parameter set with some other.