HP 8340b Operating Instructions

Instrument State Keys
DESCRIPTION
Instrument check and preset, HP-IB address assignment, storage and recall of operating configura¬
tions, alternating operation, and restoration of local control are the functions of this key group.
PANEL LAYOUT
■■ ■ INSTRUMENT STATE 1
O
INSTR
-\
LOCAL
SAVE I RECALL ALT
i o
ii o
INSTR
PRESET
v ^
ON/OFF
FUNCTIONS
[LOCAL] (HP-IB: LOCAL command). The front panel keys (except [LOCAL] and the POWER switch)
are inoperative when the HP 8340B/41B is being remotely controlled by a computer. Press [LOCAL]
to cancel computer control and to reactivate the front panel keys. [LOCAL] does not work if the
computer executed a LOCAL LOCKOUT command, as explained in the HP-IB section of this chapter.
[SHIFT] [LOCAL] (no HP-IB: code) causes the HP-IB address to appear in the ENTRY DISPLAY. The
factory-set address is 19; however, any unique address between 00-30 can be assigned to the HP
8340B/41B by pressing [SHIFT] [LOCAL], entering the address numbers, and pressing any termi¬
nator key (GHz, MHz, kHz, Hz). This new address remains in effect until again changed by the oper¬
ator. The calibration constants (described in Section VIII) can be configured to disable the [SHIFT]
[LOCAL] function, thus locking the HP 8340B/41B to the address specified in the calibration con¬
stants.
[SAVE] (HP-IB: SVn, n=1-9) allows up to 9 different front panel settings to be stored in memory
registers 1 through 9. Instrument settings can then be recalled via the [RECALL] n (n = 0 through 9,
where 0 is the last-used front panel setting) function, or a memory setting can be alternated with the
current front panel setting with the [ALT] n (n = 1-9) function. Set the front panel controls to any
desired configuration, then press [SAVE] which will cause "SAVE REGISTER: ?” to appear in the
ENTRY DISPLAY. Press any digit 1 -9 to select the storage register, and the setting will be saved in that
register. The information stored in the memory registers is retained in memory indefinitely when ac
line power is constantly available, or for approximately three years without line power.
[SHIFT] [SAVE] (HP-IB: SHSV) is a save-lock that prevents any new front panel settings from being
saved. [SHIFT] [RECALL] removes the save lock.
[RECALL] (HP-IB: RCn, n=0-9) retrieves a front panel setting that was previously SAVEd in storage
registers 1-9 ([RECALL] [0] retrieves the last-entered front panel setting). Press [RECALL], which will
cause "RECALL REGISTER: ?” to appear in the ENTRY DISPLAY. Then press any digit 0-9, or use
the [STEP] keys, to select the desired memory register. (The rear panel "8410 CONNECTOR” has a
pin that duplicates the step-recall function, as explained in Figure 3-21 and the HP 8340A/HP 8410
Operating Guide).
[SHIFT] [RECALL] (HP-IB: SHRC) cancels the save-lock function, which is described in the previous
paragraph.
Figure 3-12. Instrument State Keys (1 of 3)
HP 8340B/41B
Operating Information
3-31

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English