Horner APG RX371 OCS HERX371C101 - Manual (Page 113)

MAN0924-01-EN CH.17
February 8, 2010 Page 113 of 124 # 1018
CHAPTER 17: MAINTENANCE
17.1 Firmware Updates
The RX-371 product contains field upgradable 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 RX-371 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 communication 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 RX-371 system to
an operation mode.
17.2 Backup Battery
The RX-371 contains an internal lithium battery used to maintain the real-time clock and retentive
registers when power is disconnected. The RX-371 also contains a run-time battery monitor that
continuously checks the voltage of that battery.
Under normal conditions the battery in the RX-371 should last 5 years. Higher operating temperatures or
variations in batteries may reduce this time. It is suggested that the battery be replaced at least every 5
years to ensure backup operation.
17.2.1 Indications the battery needs replacing
The RX-371 monitors the battery at power-up and run-time to provide the following indications when the
battery is low, failed or missing.
• At power-up, an error message is displayed for 2 second after the self-test indicating the low
or missing battery.
• The
Ok status is reset and the Battery indicator under the system menu diagnostic sub-
menu is set to WARNING.
• OCS register %SR55.13 is set.
Warning: Firmware updates are only performed when the equipment being controlled by the RX-371
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.