English 7XV5655-0BA00
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RS232 Interface Settings (RS232 / RS485 / FO)
These settings adapt the serial interface of the Serial Hub to that of the terminal device. The
terminal device may, for example, be a protection unit with a serial interface (SIPROTEC®).
These settings apply to all possible connections (RS232 or RS485 or FO).
NOTE : The settings for baudrate, data bits, parity and stop bits are made by the application
(e.g. DIGSI®). This establishes a link to the Serial Hub via the driver for the virtual COM
port and transfers the serial interface settings for communication to the terminal device.
The RS232 settings are adjusted to the
communication behaviour of the serial
terminal device.
Com port describes the virtual COM port
to be used. (Up to 255 COM ports minus
the number of physical COM poarts are
available.)
No Modem Signals has no effect here
and is not set.
Half Duplex (RS485) RS485 operated
half-duplex, otherwise full-duplex operation
can also be selected (RS232 and FO).
Under TotalReadTimeout, it is usually OK
to accept the default value of 100 ms.
The ideal signal throughput time can be
ascertained with the "ping" tool (see below)
or the "INet Info" dialog box.
CharDistance (i.e. character interval) with
default value 5 ms should only be changed
in exceptional cases.
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