DRDAS TCP Server
TCP alive check time (default=7 min): This field specifies how long the CN2600 will wait for a response to
“keep alive” packets before closing the TCP connection. The CN2600 checks connection status by sending
periodic “keep alive” packets. If the remote host does not respond to the packet within the time specified in this
field, the CN2600 will force the existing TCP connection to close. For socket and device control modes, the
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.
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.
Primary IP address The primary host’s IP address.If left blank, then every host on the network cannot access
the serial port.
Backup 1 IP address Backup host’s IP address
Backup 2 IP address Backup host’s IP address
Backup 3 IP address Backup host’s IP address
TCP Port TCP data port number Via the data port, users can retrieve data through the async line. TCP port
command port number Via the command port, users can issue commands across the network to set the line’s
configuration parameters, such as baudrate, data bits, flow control condition, etc.
Connection goes down (default=always high): You can configure what happens to the RTS and DTR signals
when the Ethernet connection goes down. For some applications, serial devices need to know the Ethernet link
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