Save/Recall; Save - HP 8642A Operation And Calibration Manual

Model 8642A/B
Description
Proeedu re
SAVE
Operation
SA VE/RECALL
Using the Save fUIlction, you can save complete instrument states in any of the Signal
Generator's
51
recall registers (00 through
50)
These registers can then be recalled
using the Recall function or the Sequence fUllction. (Refer to Sequence, page
3-161.)
The recall regIsters are stored
III
RAM (with battery back-up) persisting through
Instrument Preset, and switching the Power frolll standby to on, and unplugging of the
ac power cord. However, if RAM memory is ever lost (for example, If the battery loses
its charge), all the recall registers will be
lost
Ta ble
3 - 2 7
below lists those instrument functions lila t ca nllot be sa ved:
Table 3-27. Instrument Settings that Cannot Be Saved
Messages
HP-IB Address
Local or Remote Mode
Sequence Settings
Special Functions
3. Service Mode
242. Phase Decrement by 1 Degree
243. Phase Increment by 1 Degree
244. Phase Decrement by 5 Degrees
245. Phase Increment by 5 Degrees
248. Single Modulation Frequency Correction
249. Display Firmware Information
250.
Phase Adjust on Knob and Steps
251. Clear the Recall Registers
Note: Put the instrument ill its initialized state by selecting
(lflSiR-PREB£Tl.
How
to
Save
an Instrument
State
To save the current instrument state in a specific register:
CS"AVEJ
followed by the two-digit number of the desired register.
To save the current instrument state in the next available register (for example, to set
up instrument states
10 lISC
with the Sequence function):
CSAVE]
CD·
To save the current instrument state in the most recently accessed save/recall register
(f~)r
example, to re-save all instrument state after recalling and modifying it):
(SAVE I
OJ
3-157