Horner APG XLt OCS - Manual (Page 91)

MAN0878-04-EN CH. 17
August 12, 2009 Page 91 of 100 ECN # 979
CHAPTER 17: MAINTENANCE
17.1 Firmware Updates
The XLe/XLt products contain field updatable firmware to allow new features to be added to the product
at a later time. Firmware updates should only be performed when a new feature or correction is required.
Steps for updating the firmware:
1. Establish communication between Cscape and the controller using a direct serial connection to
MJ1.
2. Make sure your application is available on your PC or upload the application.
3. Make sure the machinery connected to the XLe/XLt is in a safe state for firmware update (see
warning above).
4. Start the firmware update by selecting File | Firmware Update Wizard.
5. The correct product type should be selected, if it is not select the type of controller from the drop
down list.
6. Press the start button.
7. Wait for the firmware update to complete.
8. If there is a communication failure check the cable, connections and comm. port setting and try
again.
9. Firmware updates typically delete the user applications to ensure compatibility. You will need to
reload your application.
10. Test the operation of the equipment with the new firmware before returning the XLe/XLt system to
an operation mode.
17.2 Backup Battery
The XLe/XLt contains a run-time battery monitor that checks the voltage of the internal lithium battery.
This battery is used to run the real-time clock and maintains retentive registers when power is
disconnected.
Under normal conditions the battery in the XLe/XLt should last 7 to 10 years. Higher operating
temperatures or variations in batteries may reduce this time.
17.2.1 Indications the battery needs replacing
The XLe/XLt indicates the battery is low, failed or missing in a variety of ways. At power-up, an error
message is displayed indicating the low or missing battery. The user program can monitor the battery
using %SR55.13. This bit will turn on if the battery is low or missing. The system menu also contains a
battery status message under the diagnostics sub-menu (see the chapter on System Settings and
Adjustments).
Warning: Firmware updates are only performed when the equipment being controlled by the
XLe/XLt is in a safe, non-operational state. Communication or hardware failures during the firmware
update process can cause the controller to behave erratically resulting in injury or equipment
damage. Make sure the functions of the equipment work properly after a firmware update before
returning the device to an operational mode.