Moxa Technologies NE-4100 - Manual (Page 45)

NE-4100 Series User’s Manual Web Console Configuration
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periodically. If the remote host does not respond to the packet, it assumes that the connection was
closed down unintentionally. NE-4100 will then force the existing TCP connection to close.
The Inactivity time should at least be set larger than that of Force Transmit timeout. To prevent the
unintended loss of data due a session getting disconnected, it is highly recommended that this value is
set large enough so that the intended data transfer is completed.
Max connection
Setting Factory Default Necessity
1, 2, 3, 4 1 Required
Max connection is usually 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:
NE-4100 series only allows 1 host to open the TCP connection to the specific serial port.
Max connection 2 to 4:
Allows requests from between 2 and 4 host’s TCP connection to open the specific NE-4100 series
serial port, at the same time. When multiple hosts establish a TCP connection to the specific serial
port at the same time, NE-4100 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 NE-4100
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
Once the NE-4100 receives both delimiters through its serial port, it immediately packs all data
currently in its buffer and sends it out the NE-4100 series’ Ethernet port.
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 1K, the NE-4100 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 NE-4100’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 NE-4100 fetches the serial data from its
internal buffer. If data is being received through the serial port, the NE-4100 stores the data in its
internal buffer. NE-4100 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 as Force Transmit
timeout.
Optimal force transmit timeout differs according to your application, but it must be at least as
large as one character interval within the specified baud rate. For example, assume that the serial