National Instruments WSN-9791 User Manual
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National Instruments WSN-9791 User Manual

National Instruments WSN-9791 User Manual

Ethernet gateway
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USER GUIDE AND SPECIFICATIONS
NI WSN-9791 Ethernet Gateway
This user guide describes how to use the NI Wireless Sensor Network WSN-9791 Ethernet gateway and
lists specifications. The NI WSN-9791 provides an Ethernet data acquisition interface. The
NI WSN-9791 combines with NI WSN-32xx nodes to form a wireless sensor network. Figure 1 shows
the components of the NI WSN system.
1
PC or NI Real-Time Hardware Running
Application Software
2
NI WSN-9791 Ethernet Gateway
1
4
3
3
4
5
Figure 1. NI WSN System Components
5
3
NI WSN-32xx Nodes
Ethernet Cable/Connection
9–30 VDC Power Supply Connection
2

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Summary of Contents for National Instruments WSN-9791

  • Page 1 USER GUIDE AND SPECIFICATIONS NI WSN-9791 Ethernet Gateway This user guide describes how to use the NI Wireless Sensor Network WSN-9791 Ethernet gateway and lists specifications. The NI WSN-9791 provides an Ethernet data acquisition interface. The NI WSN-9791 combines with NI WSN-32xx nodes to form a wireless sensor network. Figure 1 shows the components of the NI WSN system.
  • Page 2 Figure 2 shows a close up of the NI WSN-9791. Figure 2. NI WSN-9791 Ethernet Gateway Dimensions Figure 3 shows the NI WSN-9791 device dimensions. 146.88 mm (5.783 in.) 87.50 mm (3.445 in.) 117.54 mm 51.29 mm 165.94 mm (2.019 in.) (4.628 in.)

  • Page 3: Safety Guidelines

    Safety Guidelines Operate the NI WSN-9791 only as described in this user guide. Hot Surface This icon denotes that the component may be hot. Touching this component may result in bodily injury. NI WSN Safety Information The following section contains important safety information that you must follow when installing and using NI WSN products.

  • Page 4: Safety Guidelines For Hazardous Locations

    Safety Guidelines for Hazardous Locations The NI WSN-9791 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nC IIC T4 and Ex nL IIC T4 hazardous locations; and nonhazardous locations only.

  • Page 5: Electromagnetic Compatibility Guidelines

    Caution Changes or modifications not expressly approved by National Instruments could void the your authority to operate the hardware under the local regulatory rules. Caution Operate this product only with shielded cables and accessories.

  • Page 6: Software Overview

    What You Need to Get Started To set up and use NI LabVIEW for WSN with the NI WSN-9791, you need the following: • NI WSN-9791 Ethernet Gateway device(s), with 9–30 V power supply •...
  • Page 7 Figure 4. Attach Antenna to Device Mounting the NI WSN-9791 Device You can mount the NI WSN-9791 device on a panel or on a 35 mm DIN rail. For kit accessory ordering information, refer to the accessory section of the NI WSN product page at ni.com...
  • Page 8 Figure 5 is an actual size template. You can print it out and use it to determine screw hole placement for panel mounting. 101.60 mm (4.000 in.) 55.88 mm 45.72 mm (2.200 in.) (1.800 in.) Figure 5. NI WSN-9791 Panel Mount Dimensions Template NI WSN-9791 User Guide and Specifications ni.com...
  • Page 9 Using the Integrated Panel Mount Feature The NI WSN-9791 integrated panel mount feature accepts number 8 or M4 pan head screws to secure the device onto a flat surface. To install the NI WSN-9791 on a flat surface, complete the following steps: Prepare two holes in your panel 4.448 in.
  • Page 10 DIN rail clip and the device. Figure 7. NI WSN-9791 Device DIN Rail Installation Figure 8. DIN Rail Installation Pictured Without the NI WSN-9791 NI WSN-9791 User Guide and Specifications ni.com...
  • Page 11 Figure 9. The screws are included in the NI WSN-3283 panel mount kit. Figure 9. Mounting the NI WSN-9791 to the Panel Mount Plate Attach the device and attached plate to a wall or other surface using four to six number 8 or M4 screws.

  • Page 12: 10/100Baset(X) Ethernet Port Connection

    To connect an external power supply to the NI WSN-9791, complete the following steps: Remove the 2-position mini-combicon plug from the device, loosening the retaining screws if necessary.

  • Page 13: Device Interface

    Factory Default Mode, which returns the device user configuration to the factory-set defaults. Signal Strength/Status LED Indicators The signal strength/status LED indicators for the NI WSN-9791 device are listed in Table 1. Table 1. LED State/Device Status LED Description...
  • Page 14 NI WSN-9791 stores the commands and applies the effects of the commands if a suitable replacement is installed When you remove a NI WSN-32xx device and add a new one, the NI WSN-9791 first verifies that the replacement device is compatible with the one that was removed. If it is compatible, the NI WSN-9791 device configures the replacement NI WSN-32xx device with the previous device settings.

  • Page 15: Mesh Networking

    If the gateway has the node in its list, the node joins the network, downloads the latest configuration from the gateway, and begins its normal operation of acquiring measurement data and controlling DIO. © National Instruments Corporation NI WSN-9791 User Guide and Specifications...
  • Page 16 Each time a node joins through a router, the overall throughput of that node is halved, due to the fact that the node must hop to get its messages back to the gateway. Figure 12 shows an example of one possible mesh configuration. Figure 12. Mesh Configuration Example NI WSN-9791 User Guide and Specifications ni.com...
  • Page 17 However, the configuration above does not always mesh in the same way. Figure 13 shows another possible configuration for the same network. Figure 13. Same Network Configuration Example © National Instruments Corporation NI WSN-9791 User Guide and Specifications...
  • Page 18 R 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 possibility that your system could mesh inefficiently.
  • Page 19 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. © National Instruments Corporation NI WSN-9791 User Guide and Specifications...
  • Page 20 Figure 16 shows a network consisting of one gateway, two routers, and nine end nodes. N x 1 Figure 16. Network Containing Distance, Example 1 NI WSN-9791 User Guide and Specifications ni.com...
  • Page 21 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. © National Instruments Corporation NI WSN-9791 User Guide and Specifications...

  • Page 22: Specifications

    Communication rates ..........10/100 Mbits/s, auto-negotiated Maximum cabling distance ........100 m/segment Due to regulations, the frequency bands depend upon the country of operation. Due to regulations, the valid channels depend upon country of operation. NI WSN-9791 User Guide and Specifications ni.com...

  • Page 23: Power Requirements

    Power Requirements Caution You must use a UL Listed ITE power supply marked LPS with the NI WSN-9791. The power supply must also meet any safety and compliance requirements for the country of use. Input voltage range ..........9 to 30 V Maximum required input power ......4.5 W...

  • Page 24: Electromagnetic Compatibility

    (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Canada This product complies with Industry Canada RSS-210. Cet appareil est conforme aux norme RSS210 d’Industrie Canada. NI WSN-9791 User Guide and Specifications ni.com...
  • Page 25 Licentie verplicht voor gebruik met buitenantennes. Neem contact op met verkoper voor juiste procedure. Japan The certified radio equipment is embedded in this device. Singapore Complies with IDA Standards DA105692 © National Instruments Corporation NI WSN-9791 User Guide and Specifications...
  • Page 26 Hereby, National Instruments, declares that this NI WSN-9791 is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Español Por medio de la presente National Instruments declara que el NI WSN-9791 cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la [Spanish] Directiva 1999/5/CE.

  • Page 27: Online Product Certification

    övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Íslenska Hér með lýsir National Instruments yfir því að NI WSN-9791 er í samræmi við grunnkröfur [Icelandic] og aðrar kröfur, sem gerðar eru í tilskipun 1999/5/EC. Norsk National Instruments erklærer herved at utstyret NI WSN-9791 er i samsvar med de...

  • Page 28: Environmental Management

    Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers. For additional environmental information, refer to the NI and the Environment Web page at ni.com/...

  • Page 29: Where To Go For Support

    National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For telephone support in the United States, create your service request at and follow the calling instructions or dial 512 795 8248.

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