ABB TCC300, User Manual, Page: 705 / 716

8. From the Settings dropdown menu select the number of "Retries" to be attempted if
there is any failure to update the firmware on any control.
The maximum number of retries is 10. The default number of retries is 3. The range
is from 0 to 10.
9. Select the controls to be updated.
10. Select either "Update Selected" or "Update All" to start the update sequence.
The REFU Utility will start the update sequence for each control. The sequence is
described in detail in the Firmware Update Sequence described below.
Firmware Update Sequence Summary
1. The REFU Utility opens a TCP connection on port 62000.
2. The REFU Utility initiates the Authentication session by sending an encrypted hash
signature.
3. The Control verifies the received encrypted hash string.
4. If the Control can not verify the received encrypted hash string, then the connection
is automatically closed by the Control.
5. If the received hash string verification is successful, then the Control goes into the
programming mode.
6. The REFU Utility will then query the Control for the firmware version installed on
the Control and if selected, the serial number of the Control.
7. The REFU Utility will compare the installed firmware version received from the
Control, and if selected, the serial number to the REFU Utility internal serial number
and version filter, and continue as follows:
•
If the installed firmware version is found to be a firmware version that does not
support remote ethernet firmware update, and/or if selected, the serial number
does not match, then after the selected number of attempts have also failed then
the REFU Utility will close the connection.
• If the comparison is successful, then update procedure continues.
8. The REFU Utility starts the file upload to the control.
9. When the file is completely uploaded to the Control, the control will verify the digital
signature of the firmware.
10. Based on the results of the verification, the control will proceed as follows:
• If the digital signature verification is unsuccessful, then the Control will send
the appropriate error message to the REFU Utility and terminate the update
session.
• If the digital signature verification is successful, then the programming
sequence will continue.
11. Prior to programming the flash, the following steps are taken:
1VAC388793-MB A
Section 15
Appendix F Remote Ethernet file update utility
TCC300 699
User Manual