Installation manual

Software updates
201
851-165187 / Rev.A
13 Switch on the PI54 Operator Unit.
14 Verify that the new software version is shown in the Status
display.
Messages
The MMI upload program will keep you posted on the process
by means of messages.
Safety measures
The following safety measures have been implemented to
minimize the risk of errors during the upload process.
• When the software is uploaded from the computer to the
PI54 cabinet, the data are stored in a scratch pad (buffer).
The data are not transferred to the Flash PROM (the
microproces sor’s storage area) until all software data have
been transferred correctly to the scratch pad.
• If the upload cable is unplugged, or you loose power on the
computer and/or the PI54 cabinet during the upload process,
you can simply abor t the upload and restart it. Error
messages will provide guidance.
• When the PI54 cabinet detects that software is uploaded, it
will automatically provide a blank (white) display screen,
and the keypad will be locked. It is not possible to switch off
the PI54 cabinet during the software upload, except by
disconnecting power.