User's Manual

NPort W2150A/W2250A Series Web Console: Serial Port Settings
8-4
Settings for Real COM Mode
When Operation Mode is set to Real COM on a serial port’s Operation Modes page, you will be able to
configure additional settings including TCP alive check time, Max connection, Ignore jammed IP,
Allow driver Control, Connection goes down, Packet length, Delimiter 1, Delimiter 2, Delimiter
process, and Force transmit.
TCP Alive Check Time
Default 7 min
Options 0 to 99 min
Description This field specifies how long the NPort will wait for a response to “keep-alive” packets
before closing the TCP connection. The NPort checks connection status by sending periodic
“keep- alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep-alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.