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NPort 5110 Series User’s Manual Web Console Configuration
5-16
ATTENTION
The Inactivity time should at least be set larger than that of Force transmit timeout. 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 completed.
ATTENTION
Inactivity time is ONLY active when “TCP connect on” is set to “Any character.”
Delimiter 1
Setting Factory Default Necessity
00 to FF (hex) None Optional
Delimiter 2
Setting Factory Default Necessity
00 to FF (hex) None Optional
Once the NPort 5110 receives both delimiters through its serial port, it immediately packs all data
currently in its buffer and sends it to the NPort 5110’s Ethernet port.
ATTENTION
Delimiter 2 is optional. If left blank, then Delimiter 1 alone trips clearing of the buffer. If the size
of the serial data received is greater than 1 KB, the NPort 5110 will automatically pack the data
and send it to the Ethernet. However, to use the delimiter function, you must at least enable
Delimiter 1. If Delimiter 1 is left blank and Delimiter 2 is enabled, the delimiter function will not
work properly.
Force transmit
Setting Factory Default Necessity
0 to 65535 ms 0 ms Optional
0: Disable the force transmit timeout.
1 to 65535: Forces the NPort 5110’s TCP/IP protocol software to try to pack serial data received
during the specified time into the same data frame.
This parameter defines the time interval during which NPort 5110 fetches the serial data from its
internal buffer. If data is incoming through the serial port, NPort 5110 stores the data in the
internal buffer. NPort 5110 transmits data stored in the buffer via TCP/IP, but only if the internal
buffer is full or if the Force transmit time interval reaches the time specified under Force transmit
timeout.
The optimal Force transmit timeout depends on your application, but it must be at least larger than
one character interval within the specified baud rate. For example, assume that the serial port is set
to 1200 bps, 8 data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to
send a character is 10 bits, and the time required to transfer one character is