IE-CS(T)-2TX-xRS232/485
Web Console Configuration
5-14
data in its internal buffer. The IE-CS(T)-2TX-xRS232/485 transmits the data stored in the buffer via TCP/IP,
but only if the internal buffer is full or if the Force transmit time interval reaches the time specified under the
Force transmit timeout.
The ideal Force transmit timeout depends on your application, but it must be at least larger than a single
character interval within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a character is 10 bits,
and the time required to transfer one character is
(10 (bits) / 1200 (bits/s)) * 1000 (ms/s) = 8.3 ms.
Therefore, you should set the Force transmit timeout to be larger than 8.3 ms, so in this case, it must be
greater than or equal to 10 ms.
If a user wants to send a series of characters in the same packet, the serial device attached to the
IE-CS(T)-2TX-xRS232/485 should send that series of characters during a time interval that is less than the
Force transmit timeout of the IE-CS(T)-2TX-xRS232/485, and the total length of data must be less than or
equal to the IE-CS(T)-2TX-xRS232/485’s internal buffer size. The serial communication buffer size for the
IE-CS(T)-2TX-xRS232/485 is 1 KB per port.
RFC2217 Mode
TCP alive check time
Setting
Factory Default
Necessity
0 to 99 min
7 min
Optional
0 min: TCP connection is not closed due to an idle TCP connection.
1 to 99 min: The IE-CS(T)-2TX-xRS232/485 automatically close the TCP connection if there is no TCP activity
during this given time. After the connection has closed, the IE-CS(T)-2TX-xRS232/485 will start “listening” for
another host’s TCP connection.
Local TCP port
Setting
Factory Default
Necessity
1 to 65535
4001
Required
The “Local TCP port” is the TCP port that the IE-CS(T)-2TX-xRS232/485 uses to listen to connections, and that
other devices must use to contact the IE-CS(T)-2TX-xRS232/485. To avoid conflicts with well known TCP ports,
the default is set to 4001.
Packing length
Setting
Factory Default
Necessity
