Siemens SIMATIC Ident Installation Manual page 12

Parameter assignment
3. Enter the name of the interface in the "Name" input box.
4. Select the "Apply configuration immediately" check box to adopt all the data immediately
5. Click "OK" to apply your changes.
By clicking the "Reset" button, you reset the parameters to the values that were valid when
the configuration program was called. By clicking the "Default" button, you reset the
parameters to the original data written to the 3964R as default.
The maximum length for the send and receive buffer is 65536 bytes.
In the "# send repeats" input box, you specify the number of repetitions to be made following
a NAK (Negative Acknowledge or parity error). In the "# send initiation repeats" input box,
you specify the number of repetitions to be made following an STX (frame start / when the
communications partner does not respond).
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The name must match the name specified in the device manager for the connected
hardware (integrated serial interface or external adapter, e.g. USB).
in the configuration.
Close and open the relevant port using the application to adopt the data (e.g. if you
change the baud rate). Otherwise, only the data that does not relate to interface
parameters will be adopted (e.g. timeout times).
SIMATIC 3964R protocol for Windows 9x/XP/7
Installation Manual, 01/2013, J31069-D0131-U001-A2-7218