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21

NI 9792 WSN Real-Time User Guide and Specifications

Resetting the Network Configuration

If the NI 9792 cannot communicate with the network, you can use the IP RESET switch to manually 
restore the NI 9792 to the default network settings. When you reboot the NI 9792 with the IP RESET 
switch in the ON position, the NI 9792 attempts to connect to the network using DHCP. If the NI 9792 
is unable to initiate a DHCP connection, it connects to the network with a link-local IP address with the 
form 

169.254.x.x

.

Complete the following steps to restore the NI 9792 to the default network settings:

1.

Move the IP RESET switch to the ON position.

2.

Move the RESET button to cycle power to the NI 9792. The STATUS LED flashes once, indicating 
that the NI 9792 IP address is unconfigured.

3.

Move the IP RESET switch to the OFF position.

You can reconfigure the settings in MAX from a computer on the same subnet. Refer to the 

Measurement & Automation Explorer Help 

for more information about configuring the NI 9792 

settings.

Note

If the NI 9792 is restored to the factory network settings, the LabVIEW run-time engine does 

not load. You must reconfigure the network settings and restart the NI 9792 for the LabVIEW 
run-time engine to load.

Adding, Removing, and Replacing NI WSN-32

xx

 Devices

Use NI MAX to add and remove nodes to and from your NI Wireless Sensor Network. You can remove 
and insert NI WSN-32

xx

 devices while the system is operating and without powering down the 

NI WSN system. NI WSN-32

xx 

devices already working in the system remain operational and 

accessible on the network. Commands sent to a missing NI WSN-32

xx

 device return an error response, 

but the NI 9792 stores the commands and applies the effects of the commands if a suitable replacement 
is installed.

When you remove a NI WSN-32

xx 

device and add a new one, the NI 9792 first verifies that the 

replacement device is compatible with the one that was removed. If it is compatible, the NI 9792 device 
configures the replacement NI WSN-32

xx 

device with the previous device settings.

For more information, refer to 

Start»All Programs»National Instruments»NI-WSN»Configuring 

WSN in MAX

.

ACTIVITY 

Green

On

Radio is active and sending or receiving 
data.

Off

No radio activity.

USER1

Green/
yellow

You can define the USER1 LED to meet 
the needs of your application. To define 
the LED, use the RT LEDs VI in 
LabVIEW. For more information about 
the RT LEDs VI, refer to the 

LabVIEW 

Help

.

Table 2.  

LED State/Device Status (Continued)

LED Description

Color

LED State

Device Status

Summary of Contents for 9792

Page 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Page 2: ...ations The NI 9792 WSN Real Time Gateway combines with NI WSN 32xx nodes to form a wireless sensor network Figure 1 shows the NI WSN system components Figure 1 NI WSN System Components 1 PC or NI Real Time Hardware Running Application Software 2 NI 9792 WSN Real Time Gateway 3 9 35 VDC Power Supply Connection 4 NI WSN 32xx Nodes 5 Ethernet Cable Connection 5 4 3 4 2 1 ...

Page 3: ...NI 9792 WSN Real Time Gateway User Guide and Specifications 2 ni com The NI 9792 WSN Real Time Gateway is shown in Figure 2 Figure 2 NI 9792 WSN Real Time Gateway ...

Page 4: ... using NI WSN products Caution Do not substitute parts or modify the NI WSN product Use the product only with the devices accessories and cables specified in the installation instructions Caution Do not operate a NI WSN products in an explosive atmosphere or where there may be flammable gases or fumes If you need to operate NI WSN products in such an environment the NI WSN products must be in a su...

Page 5: ...ecially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Installation Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that ...

Page 6: ...d to a test object or if the product is used in residential areas To minimize the potential for the product to cause interference to radio and television reception or to experience unacceptable performance degradation install and use this product in strict accordance with the instructions in the product documentation Furthermore any changes or modifications to the product not expressly approved by...

Page 7: ...l communications and hardware details simplifying programmatic access to I O channels The NI WSN software is on the software installation disc included with your NI 9792 WSN gateway device The NI WSN software is supported by Windows 7 Vista XP and contains the following components NI MAX NI WSN software You can download a current version of the NI WSN software from ni com support Using your Web br...

Page 8: ...nspect them Contact NI if the devices appear damaged Do not install a damaged device Caution The device is static sensitive Always properly ground yourself and the equipment when handling or connecting to the device To attach the antenna align it with the mount as shown in Figure 4 and screw it on Caution The antenna must be attached to the NI WSN device in order for the NI WSN device to function ...

Page 9: ...ection of the NI WSN product page at ni com Caution If the ambient temperature is above 60 C you must mount the NI 9792 on a thermally conductive material Measure the ambient temperature at each side of the NI 9792 63 5 mm 2 5 in from the side and 25 4 mm 1 in from the back of the system Caution Your installation must meet the following requirements Allows 25 4 mm 1 in of clearance above and below...

Page 10: ...NI 9792 WSN Real Time Gateway User Guide and Specifications 9 ni com Figure 5 NI 9792 Panel Mount Dimensions Template 114 3 mm 4 500 in 45 69 mm 1 799 in 55 91 mm 2 201 in 101 6 mm 4 000 in ...

Page 11: ... To mount the device on a DIN rail complete the following steps 1 Fasten the DIN rail clip to the device using a number 1 Phillips screwdriver and four 4 40 machine screws The screws are included in the DIN rail kit 2 Make sure the DIN rail kit is installed as shown in Figure 6 with the larger lip of the DIN rail positioned up Note Use 4 40 finer thread screw to affix the DIN rail clip to the devi...

Page 12: ... six number 8 or M4 screws Refer to Figure 5 for the mounting hole template Setting Up the NI 9792 Device Complete the following steps to prepare the NI 9792 device for use 1 Before connecting the hardware install NI LabVIEW and the NI WSN driver software You must be an Administrator to install NI software and devices on your computer The NI WSN driver software is on the software installation disc...

Page 13: ...Started Guide is available after installation from Start All Programs National Instruments NI WSN Make sure the NI 9792 device power is disconnected 5 Attach a ring lug as shown in Figure 9 to a 14 AWG 1 6 mm wire Connect the ring lug to the ground terminal on the bottom of the device using the ground screw Attach the other end of the wire to the system ground Figure 9 Ring Lug Attached to the Gro...

Page 14: ...to assign an IP address or reassign a static IP address for the subnet where you want it to be and physically move it to the other subnet The first time you configure the NI 9792 you must also install software on it Contact your network administrator if you need assistance configuring the host computer and NI 9792 on the same subnet Note You must connect Ethernet port 1 to configure the NI 9792 Yo...

Page 15: ...the power connector is plugged into the NI 9792 or while the power supply is on Powering On the NI 9792 Turn on each power supply to the NI 9792 system The NI 9792 runs a power on self test POST During the POST the POWER and STATUS LEDs turn on When the STATUS LED turns off the POST is complete If the LEDs do not behave in this way when the NI 9792 powers on refer to the Device Interface section C...

Page 16: ...EW Real Time Software Wizard 9 Install LabVIEW Real Time software and device drivers on the NI 9792 After software installation the NI 9792 automatically reboots You can now program it using LabVIEW Real Time For information about configuring the NI 9792 to launch an embedded stand alone application at startup refer to the LabVIEW Help For more information about setting up the NI 9792 as an RT tar...

Page 17: ...es such as displays or input devices Use the Serial VIs to read from and write to the serial port For more information about the Serial VIs refer to the LabVIEW Help Figure 12 NI 9792 RS 232 Serial Port 1 Antenna RP SMA Connector 2 9 35 VDC Power Connector 3 RS 232 Port 4 USB Port 5 RESET Button 6 DIP Switches 7 RJ45 Ethernet Port 1 10 100 LED 8 ACT LINK LED 9 RJ45 Ethernet Port 2 10 100 LED 10 LE...

Page 18: ...ing operation Configuring DIP Switches Figure 13 NI 9792 DIP Switches All of the DIP switches are in the OFF position when the NI 9792 is shipped from National Instruments SAFE MODE Switch The position of the SAFE MODE switch determines whether the embedded LabVIEW Real Time engine launches when the NI 9792 boots If the switch is in the OFF position the LabVIEW Real Time engine launches Keep this ...

Page 19: ...792 to reset the IP address and other TCP IP settings of the NI 9792 to the factory defaults Refer to the Resetting the Network Configuration section for more information about resetting the IP address NO APP Switch Move the NO APP switch to the ON position to prevent a LabVIEW startup application from running on the NI 9792 when the NI 9792 powers on If you want to permanently disable the applica...

Page 20: ...re listed in Table 2 Table 2 LED State Device Status LED Description Color LED State Device Status 10 100 Green On Connected at 100 Mbps Off No Ethernet connection or 10 Mbps connection LINK ACT Green On Ethernet link Off No Ethernet connection Blinking Ethernet activity POWER Green Yellow Green Powered from V1 Yellow Powered from V2 Off Power off ...

Page 21: ...rmation about installing software on the gateway 3 Blinks The gateway is in safe mode because the Safe Mode DIP switch is in the ON position Refer to the Configuring DIP Switches section for information about the Safe Mode DIP switch 4 Blinks The gateway software has crashed twice without rebooting or cycling power between crashes This usually occurs when the gateway runs out of memory Review your...

Page 22: ...the network settings and restart the NI 9792 for the LabVIEW run time engine to load Adding Removing and Replacing NI WSN 32xx Devices Use NI MAX to add and remove nodes to and from your NI Wireless Sensor Network You can remove and insert NI WSN 32xx devices while the system is operating and without powering down the NI WSN system NI WSN 32xx devices already working in the system remain operation...

Page 23: ...gure 1 shows a typical NI Wireless Sensor Network The gateways and nodes work together to form a mesh network The gateway maintains a list of nodes by serial number that have been authorized for network access When a node powers up it scans for available networks locates either a gateway or router and attempts to join it If the gateway has the node in its list the node joins the network downloads ...

Page 24: ...onfiguration R1 a router and R2 a router both communicate directly with the gateway Measurements taken by both devices can directly reach the gateway without having to hop through another node However the configuration above does not always mesh in the same way Figure 15 shows another possible configuration for the same network R1 G R2 ...

Page 25: ...or sending its own measurement data but also the R2 data This configuration is considered a worst case 1 hop system as R2 and R1 both have the possibility of meshing through a router that is connected to the gateway National Instruments recommends configuring your system for no more than three hops Configuring multiple nodes as routers and placing them within close proximity introduces the possibi...

Page 26: ...rference such as buildings Another advantage of the mesh network is the ability to extend the distance of the end measurement from the wired Ethernet gateway By placing mesh routers throughout the space where you wish to acquire signals you can expand the area and distance across which measurement data can be acquired and sent Refer to the Specifications section for typical line of sight ranges fo...

Page 27: ...um theoretical throughput of 250 kbps This correlates to a typical maximum rate of 1 sample per second per node Measurements taken with NI WSN 32xx nodes are single point acquisition NI WSN 32xx devices have no onboard buffer therefore the data is considered to be lost meaning there is no way to retrieve past data from the device Configuring Your NI WSN System As discussed in the Mesh Networking s...

Page 28: ...ications Figure 18 Network Containing Distance Example 1 In this case all nodes have properly meshed and all nodes can communicate with the gateway However this network could potentially strand end nodes Figure 19 shows another possible mesh of the same network G R2 R1 N N x 1 x 8 ...

Page 29: ...communicate with R2 This prevents them from possibly joining R1 2 Add an additional router that is in range of the single end node This introduces the possibility of creating additional hops in the network but also guarantees coverage of all end nodes Specifications These specifications are typical at 25 C unless otherwise noted For the NI WSN 32xx specifications refer to the device user guides Wi...

Page 30: ...ernet port 1 10 Mbps 100 Mbps auto negotiated Ethernet port 2 10 Mbps 100 Mbps auto negotiated Maximum cabling distance 100 m segment RS 232 DTE Serial Port Baud rate 300 230 400 bps Data bits 5 6 7 8 Stop bits 1 1 5 2 Parity Odd even mark space none Flow control RTS CTS XON XOFF DTR DSR none USB Port Maximum data rate 480 Mb s Maximum current 500 mA 1 Due to regulations the frequency bands depend...

Page 31: ...ommended power supply 15 W secondary 35 VDC max Power consumption 9 5 W Maximum power consumption 15 W Voltage requirement On powerup 9 to 35 V After powerup 6 to 35 V Note For EMC compliance operate this device with shielded cables The NI 9792 is guaranteed to power up when 9 V is applied to V and C After power up it can operate on as little as 6 V Physical Characteristics If you need to clean th...

Page 32: ... signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Caution Do not connect the system to signals or use for measurements within Measurement Categories II III or IV RF Safety Warning This product complies with FCC radiation exposure limits set for uncontrolled equipment and meets the FCC radio frequency RF Exposure Gui...

Page 33: ...l Requirements of the R TTE Directive of the European Union 1999 5 EC This equipment meets the following conformance standards EN 301489 01 EN300 328 EN301 489 17 EN60950 Europe Restrictions for Use of 2 4 GHz Frequencies in European Community Countries België Belgique For private usage outside buildings across public grounds over less than 300 m no special registration with IBPT BIPT is required ...

Page 34: ... seguire Nederland License required for outdoor installations Check with reseller for procedure to follow Licentie verplicht voor gebruik met buitenantennes Neem contact op met verkoper voor juiste procedure Česky Czech National Instruments tímto prohlašuje _e tento NI WSN 9792 je ve shodě se základními po_adavky a dalšími příslušnými ustanoveními směrnice 1999 5 ES Dansk Danish Undertegnede Natio...

Page 35: ... in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999 5 EG Malti Maltese Hawnhekk National Instruments jiddikjara li dan NI WSN 9792 jikkonforma mal htigijiet essenzjali u ma provvedimenti ohrajn relevanti li hemm fid Dirrettiva 1999 5 EC Magyar Hungarian Alulírott National Instruments nyilatkozom hogy a NI WSN 9792 megfelel a vonatkozó alapvetõ követe...

Page 36: ...00 Hz Environmental Operating temperature IEC 60068 2 1 and IEC 60068 2 2 40 to 70 C Storage temperature IEC 60068 2 1 and IEC 60068 2 2 40 to 85 C Ingress protection IP 40 Operating humidity IEC 60068 2 56 10 to 90 RH noncondensing Storage humidity IEC 60068 2 56 5 to 95 RH noncondensing Pollution Degree IEC 60664 2 Maximum altitude 2 000 m Indoor use only Environmental Management NI is committed...

Page 37: ...ed National Instruments service representative For more information about compliance with the EU Battery Directive 2006 66 EC about Batteries and Accumulators and Waste Batteries and Accumulators visit ni com environment batterydirective Cd Hg Pb ᄤֵᙃѻક ᶧ ࠊㅵ ࡲ Ё RoHS Ё ᅶ National Instruments ヺড়Ё ᄤֵᙃѻકЁ䰤ࠊՓ ᶤѯ ᆇ 䋼ᣛҸ RoHS DŽ Ѣ National Instruments Ё RoHS ড়㾘ᗻֵᙃˈ䇋ⱏᔩ ni com environment rohs_chinaDŽ For inf...

Page 38: ...phone support in the United States create your service request at ni com support and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States contact your local branch office Australia 1800 300 800 Austria 43 662 457990 0 Belgium 32 0 2 757 0020 Brazil 55 11 3262 3599 Canada 800 433 3488 China 86 21 5050 9800 Czech Republic 420 224 235 774 Denmark 45 45 ...

Page 39: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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