Performing A Cold Boot; Figure 85: Memory Backup Enable/Disable - ABB XSeriesG4 User Manual

Select the appropriate connection type from the available drop-down menu, in the lower left hand portion of the
screen.
Click the Start button to begin.
IMPORTANT NOTE: There is a chance that the user will see a PCCU32 dialog box display that informs them
that the Target Device Loader is not working. The user will need to follow the dialog box instructions to warm
boot the system.
6.3.2.2 Method 2
To perform the second warm boot method:
Connect the PC running PCCU32 to the flow computer with either an MMI cable (RS-232), a USB cable or an
Ethernet cable
Select Entry mode within PCCU.
Click the Terminal icon on the PCCU toolbar.
Move cursor to the terminal prompt (->)
Type in the following: "BOOT=WARM''.
Press Enter on the keyboard to initiate the warm boot.
The flow computer has been warm booted.

6.4 Performing a Cold Boot

A cold boot occurs when power is removed from the board, including the lithium battery backup. A cold boot can be initiated
from a hardware or software standpoint. The following will take the user through both methods.
NOTICE – Loss of data. A cold boot will cause a loss of all historical data, and any changes made that have not
yet been saved to TFcold.
6.4.1 Hardware Cold Boot
To perform a hardware cold boot:
Open the door to the flow computer.
Locate the enable/disable jumper for the lithium backup battery. Located on the lower left-hand side of the board
(Figure 85).
Move the jumper to the 2-3 position.

Figure 85: Memory backup enable/disable

111 XFC G4 2103335 Rev AB