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REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04
REF542
plus
: Installation and Commissioning
56 / 80
7 Firmware upgrade
In the following the upgrade of the firmware is described. The possibility of upgrading
the firmware is to be asked to the authorized personnel to your local ABB representa-
tive.
7.1
Upgrade the Firmware of the Central Unit
Use the RS232 port X72 on the Central Unit of the REF542
plus
.
Connect to the serial RS232 port on the PC with the TeraTerm Pro software with the
set up file MCTERM.INI.
Turn on the power supply for the Central Unit and press a key on the PC keyboard
within a couple of seconds
Type the proper password and press ‘enter’
Type “
d
” and at prompt answer yes by pressing “
y
”
From the menu File in Tera Term Pro select “send file”
Select the new main-board firmware to download and click “Open“
After the download is completed, the Central Unit should reset itself and run the new
firmware.
7.2
RHMI firmware upgrade
Set Tera Term Pro software with the set up file RHMITERM.INI.
Connect the RHMI to a PC through the optical cable
Turn ON the power supply for the HMI Local Control Unit and press “enter button” on
the PC within a couple of seconds (if not, the RHMI application starts normally)
Select the "Send File..." item on TeraTerm "File" menu
Choose the firmware file. "Binary" option should be DISABLED
Wait until the file has been uploaded to HMI (one or two minutes)
At the end of the upload, the newly uploaded firmware version starts
Note
Only HMI with software version 4B01 can be uploaded with this boot loader