Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 231
Commercial Operating System Chapter 10
Use the Operating System
Utilities Tool to Reinstall
the COS
The CompactLogix 5480 controller ships with a licensed COS already
installed. If necessary, you can use the Operating System Utilities tool to
reinstall the COS.
To reinstall the COS, complete the following steps.
1. Confirm that the controller is powered and in Program or Remote
Program mode.
2. Press the reset button and hold it until UTIL appears on the 4-character
display.
UTIL appears after the reset button has been held in for at least 10
seconds but less than 15 seconds.
If you hold the reset button in for 15 seconds or more, there is no change
to the display. The COS continues to operate as it did before you pressed
the reset button in.
For more information on using the reset button with the COS, see
page 218.
IMPORTANT Before you begin to reinstall the COS, consider the following:
• When you reinstall the COS on a CompactLogix 5480 controller, you
return it to its factory default state, also known as the Out-of-Box
Experience (OOBE) state.
Any data files, programs, or Windows configuration settings that exist on
the COS before it is reinstalled are lost and cannot be recovered after the
reinstallation process is complete.
We recommend that you save all data, user installed programs, and
Windows settings before reinstalling the COS. You can save the data,
programs, and settings to removable media that is connected to one of
the COS USB ports.
IMPORTANT: Removable media that is connected to the COS is
read-only unless it is protected by Bit Locker.
• Make sure that all peripherals, for example, monitor, mouse and
keyboard, are connected to the controller.
• In rare cases, the COS does not enter Operating System Utilities mode
and a new Operating System installer must be installed before you can
complete the steps that are described in this section.
For more information on how to use the Windows Kit to reinstall the
Operating System installer, see
page 234.
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