Network Card User Manual
NPort IA5150/5250 Series User’s Manual  Web Console Configuration 
5-20
Packing length 
Setting  Factory Default  Necessity 
0 to 1024  0  Optional 
Default = 0, The Delimiter Process will be followed, regardless of the length of the data packet. If 
the data length (in bytes) matches the configured value, the data will be forced out. The data length 
can be configured for 0 to 1024 bytes. Set to 0 if you do not need to limit the length. 
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 IA5150/5250 receives both delimiters through its serial port, it immediately packs 
all data currently in its buffer and sends it to the NPort IA5150/5250’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 IA5150/5250 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. 
Delimiter process 
Setting  Factory Default  Necessity 
Do nothing 
Delimiter + 1 
Delimiter + 2 
Strip Delimiter 
Do Nothing  Optional 
[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 IA5150/5250’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 IA5150/5250 fetches the serial data 
from its internal buffer. If data is incoming through the serial port, NPort IA5150/5250 stores the 
data in the internal buffer. NPort IA5150/5250 transmits data stored in the buffer via TCP/IP, but 










