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SECTION 3
OptWi0n
GPIB (GPIB Address: GLIB address, delimiter)
[SHIFT]
The GPIB key allows you to program the GPIB
primary
address and the output delimiter
used
when the Model 3930A is acting as a GPIB talker.
Only the numeric keys can be used for setting
these parameters (the MODIFY
knob cannot be
used). The allowed
range for the primary
ad-
dress is from 0 to 30, and the delimiter
can be se-
lected for CR/LF or CR (CR and LF or CR only).
The GPIB primary
address is the integer part of
this parameter, and the delimiter
is defined by
the fractional
part. For example, a parameter of
2.0 indicates a primary address of 2 and defines
CR/LF as the delimiter. Similarly, a parameter of
4.1 indicates a primary
address of 4 with CR as
the delimiter.
To change only the primary address, enter only
the integer part of the number; the delimiter will
remain unchanged.
To change only the delin-
iter, enter the decimal point followed by the frac-
tion (0 or 1); the primary
address value will re-
main unchanged.
When programming
the primary
address and/
or delimiter,
remember that you must press any
one of the ENTER keys to complete the entry
process.
63
MEMORY
(Memory operation keys)
-
The MEMORY keys allow you to store and recall
instrument
setups. Ten units of memory, num-
bered 0 through 9, are available for setup storage.
ST0 (Store: store setup in
memoy)
The ST0 key stores the current instrument
setup
parameters
in the selected memory
location
(O-9). You can use only numeric keys to store set-
ups (the MODIFY
knob cannot be used). l'ress-
ing the numeric key will immediately
store the
current parameter values and erase the previous
setup in the selected memory location.
RCL (Recall: wad setup from
,,WXOnJ)
RCL reads instrument
setups from the desired
memory location (O-9). You can use only numeric
keys for selecting memory locations to recall (the
MODIFY knob cannot be used). Pressing the nu-
merit key will immediately
read the contents of
the selected memory location and will change
the current instrument
settings accordingly.
Refer to paragraph 3.512 for additional
informa-
tion on instrument
settings after memory recall.
Additional
Keys
LOCK (Lock out front panel keys)
This key allows you to disable parameter setting
via most front panel keys. Available
modes are
ON (1) and OFF (0). When the lock is ON, the pa-
rameters associated with most front panel keys
cannot be programmed,
and the corresponding
operating modes cannot bc changed. Ho\ve\-cr.
LOCK, DSPL, and FCTX OUT O-S/OFF are still
operational
when the lock is ON. In addition,
trigger input and sweep control input from ap-
propriate BNC connectors are still enabled.
current parameter values such as frequent); can
be displayed by pressing appropriate
keys when
the lock is ON. The liquid crystal display Ivill in-
dicate "LOCK"
in the position where the modifi-
cation step size is normally
indicated.
Also, pa-
rameter names will not flash, and the cursor x\:ill
not be displayed.
PRST U%eset)
[SHIFT]
The PRST key recalls the factory default preset
operating parameters.Refer
to the specifications
in Appendix
B for a summary of preset parame-
ter settings.
DSPL (Main parameter display)
DSPL displays the followingmainparameters
si-
multaneously:
Signal output ON/OFF
(blank for
ON), frequency, amplitude,
amplitude
modula-
tion mode (AM for on, blank for off), DC offset,
waveform function, oscillation mode, and sweep
mode (blank for normal oscillation).
Note that
parameters
cannot be programmed
from the
main parameter display; you must press appro-
priate keys before setting parameters.
FCTN OUT ON/OFF
6ignni output ON/OFFI
FCTN OUT turns the output waveform off or on.
Each time this key is pressed, ON/OFF
will tog-
gle to the opposite state.
3-9
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