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preset), ”update” (equivalent to exclusive m message management) or ”inclusive message” (equivalent to
audio data). The soft key ”send” starts the data output via the REMOTE/RS232 connector.
This menu item is meant for data transfers into a computer. This function can also be executed via command at the
RS232 interface. A precise description of the necessary control steps and data formats is to be found on the pages 33
- 35. The EXIT key switches to the prior menu level.
Restore
Confirming ”Restore”with the soft key ”ok”, the display shows ”Restore release”. This mode provides the possibility to
restore preset data which previously had been saved using the ”Backup” procedure via the REMOTE/RS232 interface.
Since only user 3 has access to the”Restore” command, unauthorized modification of the DMM 4650 via the remote
interface and other sequences (priority) interrupting a ”Restore” process in progress is impossible.
A precise description of the necessary control steps and data formats is to be found on the pages 33 35. The EXIT key
terminates this mode (returning to the prior menu level).
RS232
Confirming ”RS232” with the soft key ”ok”, displays the current baud rate of the REMOTE/RS232 interface. With the
cursor keys the desired data rate can be set and is effective immediately. Normally, this adjustment is necessary
before ”Backup”or ”Restore”and remains in memory. This function can also be executed via command at the RS232
interface. A precise description of the necessary control steps and data formats is to be found on the pages 33 - 35.
The EXIT key switches to the prior menu level.
Clock
Confirming ”clock”with the soft key ”ok”, date and time together with soft key ”set” appear on the display. After
pressing ”set”, date and time are set anew using the cursor keys. The clock has no power reserve at missing supply
voltage and is necessary only for the error log in ”self test”. With Power-ON the clock always starts from the same
value.
Setting date and time is also be achieved via command at the RS232 interface. A precise description of the necessary
control steps and data formats is to be found on the pages 33 -35. The EXIT key switches to the prior menu level.
