Siemens SIMATIC HMI TP 170A Equipment Manual page 22

Commissioning
Define settings
The downloading options defined in the Configuration menu have the following
effects:
Option MPI Transfer Enable
If this option is deactivated, the operating unit does not permit downloading via
an MPI connection (refer to the Note below).
Option MPI Transfer Remote
This option is only available for selection when the MPI Transfer Enable option
is active.
When this option is active, the operating unit automatically switches from
normal operation to Download mode in the case of an MPI transfer from the
configuration computer.
Option Serial Transfer Enable
If this option is deactivated, the operating unit does not permit downloading via
a serial connection (refer to the Note below).
Option Serial Transfer Remote
This option is only available for selection when the Serial Transfer Enable option
is active.
When this option is active, the operating unit automatically switches from
normal operation to Download mode in the case of serial transfer from the
configuration computer.
Use the OK button to confirm the current settings for downloading options. The
Configuration menu is closed and the Start menu illustrated in Figure 3-1 is
displayed.
Note:
If both the options MPI Transfer Enable and Serial Transfer Enable are
deactivated, it is not possible to download a configuration from the configuration
computer to the operating unit.
Exit the Start menu
If no configuration is loaded on the operating unit, it switches to Download mode
automatically after 10 seconds. Touch the Download button to switch the operating
unit to Download mode manually.
If a configuration has already been loaded on the operating unit, it starts it up
automatically after 10 seconds. The configuration can be started manually by
touching the Start button.
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