Memory - Emerson 475 User Manual

2-8

Memory

Tab Key
The Tab key lets you move between selectable controls on a window.
Alphanumeric Keypad
The alphanumeric keypad lets you enter letters, digits, and other characters, such as
punctuation marks. The 475 Field Communicator automatically determines which text
options are available depending upon the input necessary for the particular field.
To enter text when in alphanumeric mode, press the desired keypad button in quick
repetition to scroll through the options to display the appropriate letter or number. For
example, to type the letter Z, press the 9 key quickly four times.
The blue text near the keys indicates alternate functionality that can be enabled by
pressing the Function key. The alternate function on the alphanumeric 5 key (insert)
will be activated in future releases of the 475 Field Communicator software.
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 2-12 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 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
and can store 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 double-tap Memory from the Settings menu.
The Field Communicator Main Menu displays the Settings menu item. See "Memory"
on page 2-13 for more information.
Learning the Basics
fieldbus device descriptions
OUNDATION