Clone Unit Function

The 'Clone Unit' feature allows the user to clone the OCS of the exact same model. This feature clones the application program and unit settings stored in Battery backed RAM of an OCS into the Removable Media.  It can then be used to clone a different OCS (of the exact same model and firmware level).

This feature can be used for:

• Replacing an OCS by another unit of the same model.
• Duplicating or clone units without the need for a PC. Horner OCS units with Removable Media support and firmware of 12.5x and higher have this clone functionality.

 

Overview
The user needs to perform the following to Clone:

Open the System Menu of the OCS. Scroll to the bottom of the screen to highlight Clone Unit as shown below.

Selecting Clone Unit menu will open the following menu screen:

Clone Unit Menu before Cloning

Note: DSK - when selected shows number of total and free bytes in Removable Media.
Free/Total - displays number of free and total bytes in Removable Media

Make/Create Clone option enables user to duplicate / Clone application file, all unit settings and all register values from Battery Backed RAM.

After confirmation, the OCS will create two new files in the root directory of the Removable Media Drive
as shown below:

AUTOLOAD.PGM Application file
CLONE.DAT File having all unit settings and register values from Battery Backed RAM
NOTE: Make/Create clone operation automatically includes the security in AUTOLOAD.PGM file for security enabled files.

Once the cloning is successful, OCS gives a message as below:

Make/Create clone can also be triggered by setting %SR164.9 bit to "1" from within the program or via  an onscreen graphics object.

Once the operation is completed, this bit is forced to zero by the firmware. When Make clone operation is triggered by this %SR bit, it does not require the user for confirmation for making clone. The success / failure of the operation is also not notified on screen to the user.

In the case of failure of "Make Clone" operation, %SR164.11 bit is set to "1" by the firmware.

NOTE: Backup of registers in FLASH memory is not performed by Clone Feature.  (Fail Safe and Backup will be covered  in the future)

Load Clone

This option loads the application, all unit settings and register values from Removable media to the Battery backed RAM (Regardless of AutoLoad settings) and then resets the OCS for the settings to take effect.

User needs to perform the following to Load Clone:

Once again select Clone Unit from main System Menu of the controller.

Then select Load Clone and OK to confirm.

After confirmation, all unit settings and register values will be loaded from Removable media to theBattery backed RAM (Regardless of AutoLoad settings) and then OCS resets for the settings to take effect.

NOTE: For security enabled files, Load clone asks for password validation before loading the application. Load clone can also be triggered by setting %SR164.10 bit to "1" from Ladder program or graphics. Once the operation is completed, this bit is made zero by the firmware. When Load clone operation is triggered by this SR bit, it does not ask the user for confirmation for loading clone. The success / failure of the operation is also not notified on screen to the user. In case of failure of "Load Clone" operation, %SR164.12 bit is set to "1" by the firmware.


Cloning the Horner OCS

1. Take the unit you need to clone and access the system menu
2. Scroll to the Status option and put the unit into idle/stop mode.
3. Insert the removable media into the OCS slot.
4. Back in the system menu, scroll to the bottom and select the Clone Unit option and hit enter.
5. Press the F1/touch screen key for the prompt to clone the OCS. Allow this to complete. The length of time to clone will depend on the size of the program etc.
6. A successful clone message should appear. Select OK for this.
7. You can now escape out of the system menu and revert back to the screen of your program.
8. Remove the removable media card from the slot.
9. In the system menu, place your unit back into RUN mode if necessary.

Loading the Clone file to other Horner OCS

1. Take the unit you are loading the clone file to and access the system menu. This is assuming this OCS meets the requirements as outlined above in the introduction and overview chapters.
2. Scroll to the Status option and put the unit into idle/stop mode.
3. Insert the removable media with the clone file on it into the OCS slot.
4. Back in the system menu, scroll to the bottom and select the Clone Unit option and hit enter.
5. In the removable media directory, scroll to the Clone .dat file.
6. Load this file. Depending on your OCS, you may need to press a soft key/function key next to the screen of the OCS or there may be a button to press on the touch screen of the device. Please allow time for this to complete.
7. Your OCS will then power cycle and you will now have your clone unit. You will even see register values in some fields that match the cloned device at the time of cloning.
8. In the system menu, place the unit into RUN mode when ready.