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NE-4100 Series User’s Manual Web Console Configuration
6-11
Max connection
Setting Factory Default Necessity
1, 2, 3, 4 1 Required
Max connection is used when the user needs to receive data from different hosts simultaneously.
The factory default only allows 1 connection at a time.
Max. connection 1: The module will only allow 1 host to open the TCP connection to the specific
serial port.
Max connection 2 to 4: The module will allow requests from between 2 and 4 host’s TCP
connection to open the serial port at the same time. When multiple hosts establish a TCP
connection to the serial port at the same time, the module will duplicate the serial data and transmit
to all of the hosts. Ethernet data is sent on a first-in-first-out basis to the serial port when data
comes into the module from the Ethernet interface.
Delimiter 1
Setting Factory Default Necessity
00 to FF “0” for None Optional
Delimiter 2
Setting Factory Default Necessity
00 to FF “0” for None Optional
The Delimiter fields are used to specify a character or 2-character sequence which will act as a
marker to control packing of serial data. By default, no delimiter characters are defined, so the
module transmits data as soon as it is received. When a delimiter character or characters are
defined, the module will hold data in its buffer until it receives the delimiter character or
2-character sequence. When the delimiter is received, the module will pack up the data in its buffer
and send it through the Ethernet port.
Use Delimiter 1 to define the first delimiter character in hex. If only one delimiter character will be
used, Delimiter 2 should be set to “0”. If the delimiter will be a two-character sequence, use
Delimiter 2 to define the second character. To disable the use of delimiters, set both Delimiter 1
and Delimiter 2 to “0”.
Note that data packing is not only controlled by the delimiter; it is also influenced by the module’s
buffer size and the Force transmit field. If the delimiter has not been received by the time the 1K
buffer is full, the module will pack the data for network transmission and clear the buffer. Also, if
the module will also pack data for network transmission if the next byte of data is not received
within the Force transmit time.
ATTENTION
Do not enable Delimiter 2 if Delimiter 1 has been disabled. The delimiter function will not work
properly if Delimiter 2 is enabled without Delimiter 1.
Force transmit
Setting Factory Default Necessity
0 to 65535 ms 0 ms Optional
0: The force transmit timeout is disabled.
1 to 65535: If the module does not receive the next byte of data within the time specified, it will
packed the data in its buffer into the same data frame for network transmission.