User`s manual

UC-7400-CE User’s Manual Introduction
1-7
Hive-Based Registry—Contrast to RAM-Based Registry
The registry for the UC-7400-CE is a hive-based registry in contrast to a RAM-based registry. The
hive-based registry stores registry data inside files, or hives, which can be kept on any file system.
This removes the need for performing backup and restore on power off.
Inserting a CompactFlash Card into a UC-7400-CE
Computer
The UC-7400-CE (except for UC-7410-CE) is equipped with a CompactFlash slot of type II which
supports cards of both types - I and II. A mass storage card is considered to be a standard
attachment to the computer. Thus, when an empty mass storage card is inserted into the slot, the
computer automatically formats it to the FAT system. This process takes a few minutes to
complete. The UC-7400-CE, when a mass storage card is inserted, creates a directory named
“CFFloder” under the root directory and the newly created directory serves a link to the storage.
Inserting a USB Mass Storage into a UC-7400-CE Computer
When an empty USB storage device is plugged into the USB slot at the back of the UC-7400-CE
(only for UC-7420-CE), the computer automatically formats it to the FAT system instead of the
TFAT system as the USB storage device is considered to be highly portable between your PC and
the computer.
When the first USB mass storage device is plugged in, a directory named “USBDisk” under the
root directory is created as a link to the storage, on the internal file system. The directory created
for the second plugged in USB device is “USBDisk2”.
Eight RS-232/422/485 Serial Ports
The UC-7400-CE computer comes with two embedded serial ports, named “COM1” and “COM2”.
The former is hidden inside the box case for debugging purposes when developing firmware. The
latter is used as the console port on which you can connect to the computer via a serial wire.
Though the console port is available for you to develop applications such as data acquisition and
control, we suggest that you implement them on the eight serial ports located on the front of the
device.
These eight additional serial ports, from left to right, have the most common names starting from
“COM3” to COM10”. They are designed to provide reliability, high-speed and 3-in-1 (i.e., RS-232,
RS-422, and RS-485) operation mode switch for your diverse applications. Each of these ports
supports baudrate settings up to 921600 bps.