NPort 5000 Series User Manual
87
Parameter
Setting
Factory
Default
Description
Necessity
Inactivity Time
0 to 65535 ms 0 ms
0 ms: TCP connection is not closed due to an idle
serial line.
0-65535 ms: The NPort automatically closes the
TCP connection if there is no serial data activity
for the given time. After the connection is closed,
the NPort starts listening for another TCP
connection.
This parameter determines when the TCP
connection is in Closed or Listen status. The
connection is closed if there is no incoming or
outgoing data through the serial port during the
specific Inactivity time.
If the inactivity time is set to 0, the current TCP
connection is maintained until there is connection
close request. Although inactivity time is
disabled, the NPort will check the connection
status between the NPort and remote host by
sending “keep alive” packets periodically. If the
remote host does not respond to the packet, it
assumes that the connection was closed down
unintentionally. The NPort will then force the
existing TCP connection to close.
Optional
Ignore
jammed IP
No or Yes
No
No: When Max connections > 1, and the serial
device is transmitting data, if any one of the
connected hosts is not responding, it will wait
until the data has been transmitted successfully
before transmitting the second group of data to
all hosts.
Yes: If you select Yes for “Ignore jammed IP,”
the host that is not responding will be ignored,
but the data will still be transmitted to the other
hosts.
Optional
Allow Driver
Control
No or Yes
No
If “max connection” is greater than 1, the NPort
will ignore driver control commands from all
connected hosts. However, if you set “Allow
driver control” to Yes, control commands will be
accepted. Note that since the NPort may get
configuration changes from multiple hosts, the
most recent command received will take
precedence.
Optional
Packing length
0 to 1024
0
0: The Delimiter Process will be followed,
regardless of the length of the data packet.
Greater than 0: If the data length (in bytes)
matches the configured value, the data will be
forced out.
Optional
Delimiter 1
00 to FF
None
Once the NPort receives both delimiters through
its serial port, it immediately packs all data
currently in its buffer and sends it to the NPort’s
Ethernet port.
Optional
Delimiter 2
00 to FF
None
Optional
Delimiter
process
Do nothing,
Del 1,
Del 2,
Strip Delimiter
Do nothing
[Del 1] or [Del 2]:
The data
will be transmitted when an additional byte (for
Del1), or an additional 2 bytes (for
Del2) of data is received after receiving
the Delimiter.
[Strip Delimiter]:
When the Delimiter is
received, the Delimiter is deleted (i.e., stripped),
and the remaining data is transmitted.
[Do nothing]:
The data will be transmitted
when the Delimiter is received.
Optional