1. The document discusses using LabVIEW and the LabVIEW Interface for Arduino (LIFA) to build a remote temperature monitoring and control system. LIFA allows controlling sensors and acquiring data through an Arduino microcontroller from within LabVIEW. 2. A web service architecture is implemented to enable remote monitoring of temperature data over the internet. LabVIEW publishes web pages that allow viewing temperature readings and controlling the system from a web browser. 3. The system connects temperature sensors to a computer via an Arduino. LIFA provides communication between LabVIEW and the Arduino. LabVIEW programs publish web pages to remotely monitor and control the temperature system from any internet-connected device.

1. International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-3, Issue-7, July-2015
Configuring LIFA For Remote Communication Using Web Architecture
108
CONFIGURING LIFA FOR REMOTE COMMUNICATION USING
WEB ARCHITECTURE
1
VATSAL SHAH, 2
AMI GOSWAMI, 3
BHAVIN GAJJAR
1,2 3
Electronics & Communication Engineering Department Indus University Gujarat, India
Email: 1
vatsalshah2210@gmail.com, 2
amigoswami1995@gmail.com, 3
bhavingajjar.ec@indusuni.ac.in
Abstract: This paper presents remote transmission of Temperature parameters using web architecture based on LIFA to
remote Engineer for analysis. Web services enable the invocation of a method on a remote target using standard Web-based
protocols. A client sends a request to a remote server, which processes the request and replies with a response, which is then
interpreted and displayed by the client application. One relies on this communication method for everyday activities such as
browsing the Web, checking e-mails, etc. Online data from the sensors can viewed in graphical form showing changes with
respect to time.
Keywords: LabVIEW, Arduino, Web-based Control, LIFA, Temperature Monitor and Control System, Temperature Sensor,
Virtual Instruments
I. INTRODUCTION
PC based data acquisition, monitoring and control
systems are gaining importance these days. Due to
the flexibility offered by various platforms in
practice. LabVIEW has been used successfully served
the purpose for many years in test and measurement
applications due to the ease of graphical
programming and its wide area of functionality for
interfacing directly to instruments, sensors and
actuators [1]. Here application implementation of
temperature monitoring and control systems using
LIFA for Remote communication using web
architecture is discussed in this paper. This system
connects temperature sensors to a computer through
Arduino. The LabVIEW Interface for Arduino
(LIFA) allows users to control sensors and acquire
data through an Arduino microcontroller using the
graphical programming environment LabVIEW.
Arduino microcontroller acts as an I/O engine that
interfaces with LabVIEW VIs through a serial
connection. [6]
LabVIEW is a graphical programming language that
uses graphical blocks instead of lines of text to create
applications. LabVIEW has provided communication
tools, including ActiveX, TCP, UDP, and Data
Socket. In this paper, we have mainly utilized TCP
and the related functions. An important and
commonly used web service is the World Wide Web
service. The World Wide Web service is the universe
of available information on internet. The access
protocol of internet is TCP/IP protocol. With TCP/IP
communication can be done over single network or
over internet. The Internet Protocols (IP) contains
addressing information and some control information
for packet routing. Transmission Control Protocol
(TCP) provides reliable transmission of data. [2]
II. SYSTEM REPRESENTATION
The following are the components of a Web service:
Server – An application responsible for parsing a
request, executing the appropriate method or action,
and sending a response to the client
Client– An application that sends a request to the
server and waits to receive a response, which is then
interpreted by the client
Standard protocols– Web-based protocols such as
HTTP route data over physical networks from the
client to the appropriate server method and then back
to the client
Network– The physical layer, such as Ethernet or
IEEE 802.11, over which data is transmitted [2] [5]
Fig.1. Request Response Model. Client send
request to Server and server response to client.
The web-based communication between
LabVIEW programs and other programs (including
LabVIEW programs) is usually realized through
client-server architecture. In the client-server model,
clients request services from servers and servers
usually wait for clients to initiate a connection. After
the connection has been setup, the server and the
client can transfer data back and forth using some
network protocol. When the current client closes the
connection, the server will continue to wait for other
clients’ request. A server may serve multiple clients
at a time as well. Any time we click on a link or
typein a URL, our browser (the client) is sending a
request to a remote server, which processes the
information and sends a response. Our browser does
not need to know anything about the server’s
infrastructure etc., it just interprets the response and
displays the result to the user. [4]
The remote panels are configured using the
following two steps:
1. Enable the Lab VIEW Web Server on the server
machine.

2. International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-3, Issue-7, July-2015
Configuring LIFA For Remote Communication Using Web Architecture
109
2. Connect and execute remote panels on the client
machine
Fig.2. Distributed Applications [5] Client machine (Controlling
Remote panel and Viewing Remote Panel) connected with
Server machine via WAN/LAN or internet
LabVIEW web server can create HTML documents
open front panel in web browser. The front panel can
be remotely monitored and controlled through the
web browser using TCP/IP services .This feature
greatly expands the application as several persons
sitting at different locations can simultaneously
access the same front panel.
III. CONFIGURING LABVIEW FOR REMOTE
COMMUNICATION
The default port number for the web server is 8080.
In general, port numbers 49152 through 65535 are
dynamic/private ports recommended for custom
TCP/IP applications [5]. Other options that you can
set include the root directory for the server HTML
files, the timeout for reading by the web server, and
log file enabling to record information pertaining to
client connections.
Fig.3. Screenshot of Web Server Configuration
In web server local debugging enable remote panel
server and tick to allow remote connection while
debugging. From web configuration we change
HTTP port in local debugging window.
The next step is to specify a list of VIs that can be
accessed remotely. One can set control time limits for
each VI in the list.
Fig.4. Screenshot of Web Service Local Debugging. Include
details of HTTP Port and enable remote panel server.
This control time limit is very useful if your VI will
be accessed by multiple users. If there is no control
time limit, a single user could monopolize control of
the application, preventing other users from assuming
control.
Fig.5. Screenshot of Configuring VI accessible on Web. Add all
the Visible Vis and allow access.
The final step is to specify a list of client IP addresses
that are allowed to access the Web Server. Each IP
address may be granted controlling privileges,
viewing only privileges, or denied access.
Fig.6. Screenshot of Configuring Browser Access List. Browser
address for allow controlling and Viewing.
IV. WEB PUBLISHING TOOL
In Web Publishing Tool select VI and viewing
option. Browse VI and select it with that different
viewing mode is given. For view and control VI
select Embedded. Selected VI will be see in the
preview window. Another viewing mode is to set
Static image of the front panel in a browser and also
continuous updates of snapshot on browser, which is
updates as seconds given between two snapshots.

3. International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-3, Issue-7, July-2015
Configuring LIFA For Remote Communication Using Web Architecture
110
Fig.7. Screenshot of Select VI and Viewing Option. Select VI
and check preview in browser.
4.1. Select HTML Output
In this next step give proper document information as
title of HTML file, header and footer details. In
preview window can see the document changes.
Fig.8. Screenshot of Select HTML Output. Add details of
Document.
4.2. Save Web Page
The next step is save the web page in a destination
directory with proper filename and will get Local host
URL. This local host URL is same as filename.
Fig.9. Screenshot of Save Web Page. Generate URL for
selected VIs. Also change File name, to add in the URL.
4.3. Document URL
After all steps successfully done, document will be
saved within the web server’s root directory. It will
give URL and connect with URL to access page from
a browser.
Fig.10. Screenshot of URL to access page. Document URL is
generated. Connect with that page from a browser.
V. WEB BROWSER OUTPUT
Send request control to VI. After that can release
control to VI. Also can set control timing for VI to
control. Here is VI of Industrial Temperate Control
System Using LIFA. If temperature exceed from the
range according to that it will give output. From the
web server page easily can control the whole system.
Fig.11. Screenshot of Temperature Control System on Web.
Temperate Control and Monitoring VI. Which is indicate
temperature range and particular LEDs on display with
Temperature chart.
In LabVIEW easily build executable file fromany VI
so that in any system can control and use Graphical
User Interface Unit.
CONCLUSIONS
With Lab VIEW Web services, you can:
Communicate with embedded Lab VIEW
applications from any Web-enabled device, Establish
machine-to-machine communication using standard
HTTP protocols, remotely monitor and control
LabVIEW applications. This system can be used to
transmit the temperature information in real time to
remote location and can be viewed by the system
engineer in industry.
In future work the database can be secured using
security tools, thus making it more secure, LabVIEW
application. Various network protocols can be
investigated for traffic management. Further this
application can be used to acquire data from other
sensor types such as pressure sensors, humidity
sensors, photo sensor, and many more. Number of
Sensors can be displayed and analyzed on graphical
form. Also, the remote monitoring feature over LAN
can be added to application for making it more

4. International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-3, Issue-7, July-2015
Configuring LIFA For Remote Communication Using Web Architecture
111
advanced such as to be accessible from any LAN
connected terminal provided the application software
is installed.
ACKNOWLEDGMENTS
We would thankful to National Instrument for
providing LabVIEW 2014 Student trial version.
REFERENCES
1. National Instruments Corporation (2010) “LabVIEW
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technology.com/kb/assets/intro_modbustcp.pdf
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