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18
Memory
Backlight key
The Backlight key lets you adjust the intensity of the touch screen
display. There are four different settings. The intensity impacts the
charge in the battery. Expect a shorter charge life for higher intensities.
See "Backlight" on page 24 for information on timers that can turn off
the backlight after specified periods of inactivity. These timers can help
conserve the battery power.
Function (Fn) key
The Function key lets you enable alternate functionality on select keys.
The Function key does not apply for menus displaying icons.The blue
text near the other keys on the keypad indicate the alternate
functionality. When the Function key is enabled, the orange light in the
left corner of the Function key appears and the FN button on the Soft
Input Panel (SIP), if displayed, is highlighted. Press the Function key
again to disable the functionality and turn off the light.
Types
The 475 Field Communicator memory consists of three components:
1.Internal Flash—32MB non-volatile RAM. The Internal Flash memory
stores the operating system and system software. It also stores the
following:
• Up to 25 HART configurations
• HART Event Captures
• F
fieldbus statistics
OUNDATION
• Text files saved from ScratchPad
2.System Card—an internal 1 GB or higher Secure Digital Card with
non-volatile flash memory. A copy of installable system software
exists on every System Card. The System Card also contains all
HART and F
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up to 1,000 HART configurations, depending on the sizes of the files.
3.RAM—32MB used only for program execution.
Available memory space
To view the available memory in your 475 Field Communicator,
connect to the Field Communicator Easy Upgrade Utility or tap the
Memory icon from the Settings menu. The Field Communicator Main
Menu displays the Settings menu item. See "Memory" on page 27 for
more information.
Free memory on the System Card
Over time, your System Card may become full and unable to store new
files. To free memory on your System Card, use the Memory
Management feature in the Field Communicator Easy Upgrade Utility.
This lets you filter and select which device descriptions can be
transferred onto your System Card. Device descriptions from selected
manufacturers or protocols are omitted during an upgrade, allowing
more space for other files.
fieldbus device descriptions and can store
Learning the basics
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