User Manual

NPort W2250/2150 Plus User’s Manual Choosing the Proper Operation Mode
4-3
TCP Client Mode
In TCP Client mode, NPort
W2250/2150 can actively establish a
TCP connection to a pre-defined host
computer when serial data arrives.
After the data has been transferred,
NPort W2250/2150 can disconnect
automatically from the host computer
by using the TCP alive check time or
Inactivity time settings. Refer to
Chapter 5 for more details
As illustrated in the figure, data
transmission proceeds as follows:
TCP Client Mode
Request a
connection
Proceed with
data transmission
1
2
1
2
TCP/IP
WLAN
NPort W2250
Antenna
Port 1
RS-232/422/485
Port 2
RS-232/422-485
Wireless Se
rial Device Server
W2250
Reset
Ethernet
12-48 VDC
Ready
WLAN
Serial 1
Serial 2
Serial Signal
Serial Device
1. The NPort W2250/2150 requests a connection to the host.
2. Once the connection is established, data can be transmitted in both directions—from the
host to the NPort W2250/2150, and from the NPort W2250/2150 to the host.
UDP Mode
Compared to TCP communication, UDP is
faster and more efficient. In UDP mode,
you can unicast or multicast data from the
serial device to one or more host
computers. The serial device can also
receive data from multiple host computers,
making this mode ideal for message display
applications.
UDP Mode
Proceed directly with data
transmission (connection
request not required)
TCP/IP
WLAN
NPort W2250
Antenna
Port 1
RS-232/422/485
Port 2
RS-232/422-485
Wireless Serial Device Server
W2250
Reset
Ethernet
12-48 VDC
Ready
WLAN
Serial 1
Serial 2
Serial Signal
Serial Device