NPort IA5150A/IA5250A Series Web Console Configuration
Delimiter + 1 or Delimiter + 2: The data will be transmitted when an additional byte (for Delimiter +1), or
an additional 2 bytes (for Delimiter +2) 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.
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 IA5450A’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 the NPort IA5450A fetches the serial data from its
internal buffer. If data is incoming through the serial port, the NPort IA5450A stores the data in the internal
buffer. The NPort IA5450A 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 baudrate. 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
(10 (bits) / 1200 (bits/s)) * 1000 (ms/s) = 8.3 ms.
Therefore, you should set Force transmit timeout to a value larger than 8.3 ms, so in this case, it must be
greater than or equal to 10 ms.
If the user wants to send a series of characters in the same packet, the serial device attached to the NPort
IA5450A should send that series of characters during a time interval less than the Force transmit timeout for
the NPort IA5450A, and the total length of data must be less than or equal to the NPort IA5450A’s internal
buffer size. The serial communication buffer size for the NPort IA5450A is 1 KB per port.
Destination IP address 1
Setting Factory Default Necessity
IP address range
E.g., Begin: 192.168.1.1
End: 192.168.1.10
Begin: Empty Required
End: Empty
Port: 4001
Destination IP address 2/3/4
Setting Factory Default Necessity
IP address range
E.g., Begin: 192.168.1.11
End: 192.168.1.20
Begin: Empty Optional
End: Empty
Port: 4001
Local listen port
Setting Factory Default Necessity
1 to 65535 4001 Required
The UDP port that NPort IA5150A/IA5250A listens to, and that other devices must use to contact NPort
IA5150A/IA5250A. To avoid conflicts with well known UDP ports, the default is set to 4001.
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