Aeroflex 2948B Betriebsanleitung PDF herunterladen (Seite 148)

LOCAL OPERATION

3-94

Memory card

The optional memory card facility extends the scope of the memory facility by the use of a 'Smart

Card' containing non-volatile static RAM with battery back-up. The card should have at least

128 k of memory.

Information loaded onto a card is not unique to the source Service Monitor. The data on memory

cards can be read onto other equipment using a suitable card reader.

A memory card is loaded into the memory card port located on the front panel of the Service

Monitor. Slide the card, face upwards, into the slot, guided by the channeling on the card and in

the slot sides. Firm but not excessive pressure is required over the final 1-2 mm of travel to

engage the contacts. The memory card may be inserted or removed from the Service Monitor with

the power on or off.

Formatting memory cards

Memory cards must be correctly formatted before data can be stored on them. The MEMORY

CARD FORMAT screen and menu has facilities for formatting and checking them.

If a memory card is inserted in the Service Monitor that has been formatted to the required

standard, the MEMORY CARD FORMAT screen will show the size of the memory and the title,

if any, of the card.

If a memory card is inserted that has not been formatted to the required standard, the message

'Card Not Formatted' is displayed on the MEMORY CARD FORMAT screen.

To apply formatting, press the [Format Card] key. The message 'Writing To Mem Card. Do Not

Remove.' is displayed until the formatting is completed. When the card has been successfully

formatted, the memory size will be displayed and the card title will show 'IFR Card'

Titling cards

To change the card title press the [Enter Title] key. A title can then be applied to the card using

the same procedure as for titling store locations (see 'Other memory functions, titling store

locations) earlier. A card title can have up to 11 characters, including any spaces.

Accessing the memory cards

When a memory card is in place, accessing the user store memory will also give access to the card

memory.

The STORE/RECALL screen or the DISPLAY AND HOLD/STORE screen are displayed as

described above.

By pressing the [

F ] key the memory store address list heading changes to 'MEMORY CARD'

and a format description. The locations are numbered 10 to 19. Successive operations of this key

will increment the numbering by 10 until the list is numbered from 90 to 99. Further operation of

the key will have no effect. To return to the lower numbered locations use the [

E ] key to

increment down.

Each memory card has capacity for 90 store locations. Therefore, with a memory card in place,

the number of store locations accessible through the STORE/RECALL screen or the DISPLAY

AND HOLD/STORE screen is increased to 100; locations 00 to 09 in the normal internal

memory, with locations 10 to 99 on the memory card.

Data is stored on the memory cards in files, using a DOS style format. These files can use as

much empty card space as they require. Therefore, if large files are stored, such as SYSTEM User

Defined test programs, the number of store locations available on that card may be reduced.

All operations relating to internal user stores apply to memory card operation, but with the

additional facilities for storing the following:-.

Bitmaps of test screens.

Parameter settings for system tests.

Results of system tests.

User defined test programs written in MI-BASIC.

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