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NPort W2150/2250 Plus Series User’s Manual
Introduction to Operation Modes
4-4
TCP Client Mode
In TCP Client mode, the NPort actively
establishes a TCP connection to a specific
network host when data is received from
the attached serial device. After the data
has been transferred, the NPort can
automatically disconnect from the host
computer through the
Inactivity time
settings. Please refer to Chapter 7 for
details on these parameters.
Data transmission proceeds as follows:
1.
The NPort requests a connection from
the host.
2.
The connection is established and
data can be transmitted in both
directions between the host and
device.
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 Serial Device Server
W2250
Reset
Ethernet
12-48 VDC
Ready
WLAN
Serial 1
Serial 2
Serial Signal
Serial Device
UDP Mode
UDP is similar to TCP but is faster and
more efficient. Data can be broadcast to or
received from multiple network hosts.
However, UDP does not support
verification of data and would not be
suitable for applications where data
integrity is critical. It is 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