NPort W2150/2250 Plus Series User’s Manual Web Console: Serial Port Settings
7-11
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.
TCP Port
Default
4001
Options
0 to 9999
Description
This field specifies the TCP port number that the serial port will use to listen to
connections, and that other devices must use to contact the serial port.
Packet Length
Default
0
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate
in the serial port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by
the delimiter settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing.
Enable Delimiter 1 to control data packing with a single character; enable both
Delimiter 1 and 2 to control data packing with two characters received in
sequence.
When these fields are enabled, serial data will accumulate in the serial port’s
buffer until the buffer is full or until the specified delimiter character(s) are
received. For example, the carriage return character could be used as a delimiter
in order to transmit each sentence or paragraph in a separate packet. Data will
be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device
level.
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