CN2600 Series Configuring Serial Port Operation Modes
CN2600 will listen for another TCP connection from another host after closing the connection. If TCP alive
check time is set to 0, the TCP connection will remain open even if there is no response to the “keep alive”
packets.
Inactivity time (default=0 ms): This field specifies how long the CN2600 will wait for incoming and outgoing
data through the serial port before closing the TCP connection. The TCP connection is closed if there is no
incoming or outgoing data through the serial port for the specified Inactivity time. If this field is set to 0, the
TCP connection is kept active until a connection close request is received.
ATTENTION
Inactivity time should at least be set larger than that of Force transmit time. To prevent the unintended loss of
data due to the session being disconnected, it is highly recommended that this value is set large enough so that
the intended data transfer is
ATTENTION
Inactivity time is ONLY active when Connection Control (see below) is set to Any character/Inactivity time.
Ignore jammed IP (default=No): This option determines how the port will proceed if multiple hosts are
connected and one or more of the hosts stops responding as the port is transmitting data. If you select No, the
port will wait until the data has been transmitted successfully to all hosts before transmitting the next group of
data. If you select Yes, the port will ignore the host that stopped responding and continue data transmission
to the other hosts.
Destination address 1 through 4 (default=None): Specifying an IP address allows the CN2600 to connect
actively to the remote host. At least one destination must be provided.
TCP port (default=4001): This is the TCP port number assignment for the serial port on the CN2600. It is the
port number that the serial port uses to listen to connections, and that other devices must use to contact the
serial port. To avoid conflicts with well known TCP ports, the default is set to 4001.
ATTENTION
Up to 4 connections can be established between the CN2600 and hosts. The connection speed or throughput
may be low if any one of the four connections is slow, since the one slow connection will slow down the other
3 connections.
ATTENTION
The Destination IP address parameter can
be the IP address, domain name, or the name defined in the host
table. For some applications, the user may need to send the data actively to the remote destination domain
name.
Designated local port 1 through 4 (default=5010 through 5013): Use these fields to specify the designated
local ports.
Connection control (default=Startup/None): This setting determines the parameters under which a TCP
connection is established or disconnected. The different options are given in the following table. In general,
both the Connect condition and Disconnect conditions are given.
Option Description
Startup/None (default) A TCP connection will be established on startup, and will remain active indefinitely.
Any Character/None A TCP connection will be established when any character is received from the serial
interface, and will remain active indefinitely.
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