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68K System Monitor
User's Guide
GE Energy Services
General
SWM0023-1.00 -2
Full Release
3-61
RTB - Return To BootROM
Platform
o
CPM
o
D20
D20 Base
o
D20 ME
D20 Base
o
D20/200
CCU Base
o
D20/200 ME
CCU Base
þ
D25
Description
Use this command to place the device in System Service Mode.  When you issue the
command, the system stops executing out of the FLASH region, and it activates the
BootROM operating system.
The primary use of this mode is for the downloading of FLASH application software
to the RTU.
Syntax
Below is usage and syntax information for this command
Command Format
rtb
Variables
None
Parameters
None
Example
At the monitor prompt, type rtb and press 
ENTER
.
Results: The system returns to BootROM operation mode.
Special
Considerations
The system halts and deletes all applications currently
executing on the RTU when it activates the BootROM
operating system.