National Instruments NI WSN C Series User manual

GETTING STARTED GUIDE
NI 9795 WSN C Series Gateway
This guide describes how to install, configure, and verify the
National Instruments 9795 Wireless Sensor Network (WSN)
C Series gateway, NI WSN nodes, and NI software.
Figure 1. NI 9795 WSN C Series Gateway

NI 9795 Getting Started Guide 2 ni.com
Figure 2. NI WSN System Components
The NI WSN system contains five main components: a PC running
Windows and NI software, a NI WSN gateway, NI WSN-32xx
node(s), a NI CompactRIO chassis, as shown in Figure 2, and an
Ethernet network.
1NIWSN-32xx Nodes
Running Application Software
2 NI CompactRIO Controller and
Chassis
3 NI 9795 WSN C Series Gateway
4 PC or NI Real-Time Hardware
5 Ethernet Network (not pictured)
2
3
1
14

© National Instruments Corp. 3 NI 9795 Getting Started Guide
What You Need To Get Started
For information about which software version supports your
device, go to ni.com/info and enter wsnsoftware.
• Host PC running Windows and NI software
• NI LabVIEW
• NI LabVIEW Real-Time Module
• NI LabVIEW Wireless Sensor Network Module (Optional.
Includes NI-WSN driver software)
• NI-RIO driver software
• NI-WSN driver software which contains NI Measurement &
Automation Explorer (MAX)
• NI CompactRIO controller and chassis or an integrated
NI CompactRIO controller and chassis
• NI 9795 WSN C Series gateway
Note The NI 9795 WSN C Series gateway can only be
used in a NI CompactRIO chassis that supports the RIO
Scan Interface (RSI). For more information, go to
ni.com/info and enter rdsoftwareversion.

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•NIWSN-32xx node devices with an approved power supply or
four approved 1.5 V AA batteries for each node
• RJ45 Ethernet cable/Ethernet network
• Related hardware and software documentation
Related Documentation
For a complete list of documentation related to NI WSN, refer to
ni.com/info and enter rdwsnrd. In addition to this guide, the
following documents may be useful when configuring your
NI WSN system.
• Documentation for your NI CompactRIO controller located at
Start»All Programs»National Instruments»NI-RIO»
CompactRIO
• NI 9795 WSN C Series Gateway User Guide and
Specifications
•NI WSN-32xx User Guide and Specifications
•MAX Help for WSN Devices, available in MAX from Start»
All Programs»National Instruments»NI-WSN»
Configuring WSN in MAX

© National Instruments Corp. 5 NI 9795 Getting Started Guide
• Refer to the NI-WSN book on the Contents tab of the LabVIEW
Help, which is available by selecting Help»LabVIEW Help in
LabVIEW
•NI-WSN Readme, available on the installation disc included
with your device
Caution Before installing your device, read all the
product documentation to ensure compliance with safety,
EMC, and environmental regulations.
Step 1. Unpack and Install the Device
Remove the device from the packaging and inspect it. Contact NI
if the device appears damaged. Do not install a damaged device.
Before setting up NI WSN nodes, remove and save the serial
number sticker located on the back of NI WSN node for future use
when configuring your device in software.
Caution The device is static sensitive. Always properly
ground yourself and the equipment when handling or
connecting to the device.

NI 9795 Getting Started Guide 6 ni.com
Inserting the NI 9795 in the NI CompactRIO Chassis
1. Attach the antenna to the NI 9795.
2. Align the gateway with any I/O slot and insert it in the
NI CompactRIO chassis.
Figure 3. Inserting the NI 9795 into the C Series Chassis
Step 2. Install NI-WSN Software on the Host PC
For information about which software version supports your device,
go to ni.com/info and enter wsnsoftware. You must be an
Administrator to install NI software and devices on your computer.
To install the NI-WSN software, complete the following steps:

© National Instruments Corp. 7 NI 9795 Getting Started Guide
1. Close all other applications.
2. Install NI LabVIEW.
3. Install NI LabVIEW Real-Time Module.
4. Install the NI-RIO driver software.
5. Install the NI LabVIEW WSN Module (optional).
6. Install the NI-WSN driver software.
Step 3. Install NI-WSN Software on
NI CompactRIO Controller
Complete the following steps to install NI-WSN software on the
NI CompactRIO controller for NI 9795 WSN C Series gateway:
1. Launch MAX.
2. Expand Remote Systems and click on the NI CompactRIO
controller with the NI 9795 installed.
3. Expand the NI CompactRIO controller and click Software.
4. Click Add/Remove Software.
5. In the Software Selection dialog box, select the recommended
NI-RIO software for NI LabVIEW Real-Time. Click Next.

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6. In the Add-on Selections dialog box, complete the following
steps:
a. Select Network I/O.
b. Expand Protocols and Buses and select the NI-WSN driver
software.
c. Select Web Features.
d. Click Next.
7. Click Next on the Review Selections dialog box. The software
then installs to the target and the target reboots.
Step 4. Configuring the NI WSN System
You must configure the NI WSN devices in MAX or in a Web
browser before using NI LabVIEW to take measurements.
Adding a Node to the NI WSN Gateway
1. Launch MAX.
2. Expand Remote Systems and click the NI CompactRIO
controller with the NI 9795 installed.

© National Instruments Corp. 9 NI 9795 Getting Started Guide
3. Expand the NI CompactRIO controller, expand Devices and
Interfaces and click WSN.
4. Select Add Node.
5. In the Add Node dialog box:
a. Select the Type.
b. Enter the NI WSN-32xx device serial number, which is
listed on the sticker on the underside of the device, and an
ID Number (number between 1 and 50).
6. Click Done if you are done adding nodes. If you want to add
other nodes, click Add Another.
Note Upon completion, these changes are automatically
applied.

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7. After the nodes are added in MAX, the nodes connect
automatically when they are in range of a gateway.
Note If your node does not connect automatically, refer
to ni.com/info and enter exxhqv for troubleshooting
information.

© National Instruments Corp. 11 NI 9795 Getting Started Guide
For more information about configuring the NI WSN system, refer
to Start»All Programs»National Instruments»NI-WSN»
Configuring WSN in MAX.
Step 5. Attach Sensors and Signal Lines
Attach sensors and signal lines to the terminal block or accessory
terminals for each node. For device pinouts, refer to the device
documentation.
Step 6. Start Using the NI WSN System
To start using the NI WSN system, complete the following steps:
1. Open a new LabVIEW project.
If the NI CompactRIO controller is on the local subnet,
complete the following steps:
a. Right-click the project name and select New»Targets and
Devices. In the Add Targets and Devices on My Project
dialog box, select Existing target or device and expand
the Real-Time CompactRIO folder. When you expand
the Real-Time CompactRIO folder, the network is
scanned for any connected NI CompactRIO devices. Wait
for device detection.

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b. Once detected, select the NI CompactRIO chassis you
wish to use and click OK.
c. If you have LabVIEW FPGA installed, select Scan
Interface as the programming mode of the
NI CompactRIO device and click Continue. This
populates the LabVIEW Project window with the
NI CompactRIO chassis.
Note The NI 9795 WSN C Series gateway can only be used
in a NI CompactRIO chassis that supports the RIO Scan
Interface (RSI). For more information, go to ni.com/
info and enter rdsoftwareversion. To use RSI and
FPGA at the same time with a NI 9795 in the CompactRIO
chassis, go to ni.com/kb and enter 4XRBMIUV.
If the NI CompactRIO device is not on the local subnet,
complete the following steps:
a. Right-click the project name and select New»Targets and
Devices,click Existing target or device, and click
Specify a target or device by IP address.
b. Select IP Address and enter the IP address.

© National Instruments Corp. 13 NI 9795 Getting Started Guide
c. Expand the Real-Time CompactRIO folder and select the
NI CompactRIO device type and click OK.
d. Right-click the NI CompactRIO device in the project and
select New»Targets and Devices. Click Discover an
existing target(s) or device(s).
e. Expand the NI CompactRIO chassis and select the
NI CompactRIO chassis with the NI 9795 installed that
you want to use. Click OK and then select Scan Interface
as the Programming Mode of the NI CompactRIO chassis
and click Continue.
Note The NI 9795 WSN C Series gateway can only be
used in a NI CompactRIO chassis that supports the RIO
Scan Interface (RSI). For more information, go to
ni.com/info and enter rdsoftwareversion. To use
RSI and FPGA at the same time with a NI 9795 in the
CompactRIO chassis, go to ni.com/kb and enter
4XRBMIUV.
2. Right-click on the NI CompactRIO device in the project and
select New»Targets and Devices.
3. Expand WSN Node and select the nodes for use in the project
and click OK.

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4. Expand the listing for the Wireless Sensor Network in the
NI LabVIEW project to see the NI WSN-32xx nodes
connected to it. Expand each node to view the I/O variables.

© National Instruments Corp. 15 NI 9795 Getting Started Guide
5. To configure the I/O variables properties (such as Range and
Sample Interval), right-click on the node and select
Properties.
6. To acquire data, create a new VI under My Computer or the
NI CompactRIO device, and drag the I/O variable(s) to the
block diagram, create an indicator, and click Run. For more
information about configuring the NI WSN system in
NI LabVIEW, select Help»LabVIEW Help and enter WSN.
Programming Examples
NI LabVIEW includes example programs to help you develop an
application. To locate NI LabVIEW examples, go to ni.com/
info and enter wsnexamples. For additional examples, refer to
zone.ni.com.
Where to Go for Support
The National Instruments Web site is your complete resource for
technical support. At ni.com/support you have access to
everything from troubleshooting and application development
self-help resources to email and phone assistance from
NI Application Engineers.

© 2011 National Instruments Corp. All rights reserved.
373420A-01 Aug11
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