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If you need to upgrade the firmware or activate features on the MCU, refer to these topics:
Upgrading the main MCU software image
Upgrading the loader software image
Enabling MCU features
Storing user passwords securely
The main MCU software image is typically the only firmware component that you will need to upgrade.
Follow these steps to upgrade this image:
1. Check the Current version field to verify the currently installed version.
2. Log onto the support pages to identify whether a more recent image is available.
3. Download the latest available image and save it to a local hard drive.
4. Unzip the image file.
5. Log on to the MCU web browser interface.
6. Go to .
7. Click to locate the unzipped file on your hard drive.
8. Click . The browser begins uploading the file to the MCU, and a new browser
window opens to indicate the progress of the upload. When finished, the browser window refreshes and
indicates that the "Main image upgrade completed."
9. The upgrade status displays in the MCU software upgrade status field.
10. Shutdown and restart the MCU.
Upgrades for the Loader software image are not typically available as often as upgrades to the main software image.
Follow these steps to upgrade this image:
1. Check the Current version field to verify the currently installed version.
2. Go to the software download pages of the web site to identify whether a more recent image is available.
3. Download the latest available image and save it to a local hard drive.
4. Unzip the image file.
5. Click to locate the unzipped file on your hard drive.
6. Click . The browser begins uploading the file to the MCU, and a new browser
window opens to indicate the progress of the upload. When finished, the browser window refreshes and
indicates that the "Loader image upgrade completed."
7. The upgrade status displays in the Loader upgrade status field.
8. Shutdown and restart the MCU.