HP 8591C Manuel d'utilisateur télécharger pdf (Page 107)

100

101

Saving

and

Recalling

Data

from

the

Memory

Card

The memory card provides additional memory for saving instrument states,

traces, display images, limit-line tables, amplitude correction factors, and

programs. Each HP 822158 battery-backed RAM card provides 128 kilobytes

of memory. Several different memory cards are available with up to

512 kilobytes of memory. See “Accessories” in Chapter 9. Instrument states,

traces, display images, limit-line tables, amplitude-correction factors, and

programs are easily retrievable without the need for an external controller to

transfer data.

The process of saving and recalling data from the memory card is similar

to saving and recalling data from the cable TV analyzer memory. Due to

the expanded capabilities of the memory card, there are some important

differences. For example, data is stored in cable TV analyzer memory as an

item; on the memory card data is stored as a logical interchange

file

(LIF).

Memory card data can be stored and recalled using a prefix. A prefix is

an optional user-defined label for states, traces, and programs. The prefix

becomes part of the

llle

name. If you do not specify a prefix, the file name

will be created without it. Table 3-2 compares the save and recall operations

of cable TV analyzer memory and the memory card.

Refer to

Table

3-3 at the end of this section for a summary of saving and

recalling data to and from cable TV analyzer memory.

3-15

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 ... 549 550

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HP 8591C Manuel d'utilisateur Page 107

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