Update NB HMI Kernel and Rootfs
NB HMI Hardware updates
Written by Nicolas Donoso
Updated at March 29th, 2023
Introduction
This article will cover the steps required to update the Kernel and Rootfs of your NB HMI. The version of the Kernel and Rootfs are based on the version NB-Designer you have.
It is beneficial to perform this update when possible as it might add new functions/object available for the screen, or potentially fix current issue if there are any. You can find the RELEASE NOTES within the following folder on your computer after installing NB-Designer.
C:\Program Files (x86)\OMRON\NB-Designer\doc\ENG
Connecting to NB HMI
- Open NB-Designer, then go to Tools and open System Manager.
- NBManager will appear on your screen, under Communication Settings click on Set.
- Select the desired Communication Method and setup the communication settings accordingly. Once done, click on OK.
- To confirm that the communication between the PC and NB HMI is working, go to Get Version on the left hand side.
- Click on Get Version and the information in each box retunes a value then we know that the communications is working, otherwise check your Communication Settings again to make sure they are correct.
Update Kernel and Rootfs
- Make sure you have a backup of the program on the HMI if existing installations, otherwise if the unit is new then you don't need to worry about this first step.
- Remove power to the NB HMI.
- Set the dip switches at the back of the HMI to Downloader Mode (SW1: ON, SW2: OFF)
- Power back up the NB HMI after setting the dip switches
- Go back to NBManager on the PC and click on the left hand side System Operation.
- Click on Write Kernel to update, once complete click on Write Rootfs to update. You should have seen the following if successful.
- Remove power from the HMI again.
- Reset the dip switches back to original setting User Project Mode (SW1: OFF, SW2: OFF).
- Power up the HMI again.
- The screen will have no project on it now, so if existing installation, open the backup project we uploaded at the beginning of this process.
- Compile the project.
- Download the project onto the NB HMI again.