Table of Contents
Advertisement
Quick Links
USER GUIDE AND SPECIFICATIONS
NI WSN-3230/3231
NI Wireless Sensor Network RS-232/RS-485 Serial Interface Nodes
This user guide describes how to use the NI WSN-3230/3231 RS-232/RS-485 interface serial nodes and
lists their specifications. Figure 1 shows the NI WSN system components. The NI WSN-3230 is a low
power wireless node with one RS-232 port. The NI WSN-3231 is a low power wireless node with one
RS-485 port. These nodes work with other NI WSN-32xx nodes and gateways to form a wireless sensor
network.
1
NI WSN-32xx Nodes
2
NI 9792 WSN Real-Time Programmable Gateway
3
NI WSN-9791 Ethernet Gateway
The NI WSN system receives and analyzes distributed sensor data through one or more NI WSN
gateways, up to 36 NI WSN nodes per gateway, and multiple PCs.
When you connect the NI WSN gateway, you can use a separate host PC running Windows, or a
NI CompactRIO chassis running NI LabVIEW Real-Time, to display measurement results, status
information, and to change the NI WSN gateway and NI WSN-3230/3231 device settings.
2
Or
1
1
Figure 1. NI WSN System Components
6
3
4
Or
5
4
NI CompactRIO Chassis
5
NI 9795 WSN C Series Gateway
6
PC Running NI Software
Advertisement
Table of Contents
Related Manuals for National Instruments WSN-3230
Summary of Contents for National Instruments WSN-3230
- Page 1 This user guide describes how to use the NI WSN-3230/3231 RS-232/RS-485 interface serial nodes and lists their specifications. Figure 1 shows the NI WSN system components. The NI WSN-3230 is a low power wireless node with one RS-232 port. The NI WSN-3231 is a low power wireless node with one RS-485 port.
-
Page 2: Safety Guidelines
(2.00 in.) Figure 2. NI WSN-3230/3231 Device Dimensions Safety Guidelines Operate the NI WSN-3230/3231 device 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. -
Page 3: Safety Guidelines For Hazardous Locations
Safety Guidelines for Hazardous Locations The NI WSN-3230/3231 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 4: Related Documentation
The getting started guide for your NI WSN gateway • The user guide and specifications for your NI WSN node(s) • Configuring WSN in MAX, available from Start»All Programs»National Instruments»NI-WSN • LabVIEW Help for WSN Devices, available in LabVIEW from Help»LV Help»WSN Devices Help •... -
Page 5: What You Need To Get Started
To set up and use NI LabVIEW with the NI WSN-3230/3231 device, you need the following: • NI WSN gateway • NI WSN-3230/3231 device(s) with a 5–30 V power supply or four alkaline or lithium AA 1.5 V batteries for each node. Refer to the Battery Power section for recommended battery types. - Page 6 Figure 3. Attach the Antenna to the Device Mounting the NI WSN-3230/3231 Device You can mount the NI WSN-3230/3231 on a panel or on a 35 mm DIN rail. For kit accessory ordering information, refer to the NI WSN product page accessory section at .
- Page 7 DIN Rail Clip (Without Device) DIN Rail Figure 5. DIN Rail Clip Installation Press down firmly on the NI WSN-3230/3231 to compress the spring until the clip locks into place on the DIN rail. © National Instruments Corporation NI WSN-3230/3231 User Guide and Specifications...
- Page 8 I/O wires. You can use the NI WSN-3280 panel mount accessory to attach the NI WSN-3230/3231 device to a panel or other flat surface. The NI WSN-3281 panel mount accessory also includes a magnetic mount for attaching the NI WSN-3230/3231 device to metallic surfaces.
- Page 9 Mounting Hole Figure 7. Panel Mount Accessory Refer to Figure 7 while completing the following steps to mount the NI WSN-3230/3231 on a panel: (NI WSN-3280) Bolt or screw the panel mount accessory to a panel using five 8-32 or M4 screws.
- Page 10 Figure 8. Slide Retention Clip Down and Tighten Panel Mount Knob Using the Integrated Panel Mount Slots You can also mount the NI WSN-3230/3231 to a panel using the integrated panel mount slots, as shown in Figure 9. Attach three number 8 or M4 pan head screws in the mounting panel, leaving 0.1 in. space under the head of each screw.
-
Page 11: Installing The Software
Caution Disconnect power before removing the device from the panel. Setting Up the NI WSN-3230/3231 Device The following sections discuss setting up the NI WSN-3230/3231 for use. Installing the Software For more information about NI-WSN software, go to and enter ni.com/info... -
Page 12: Installing Batteries
Powering the NI WSN-3230/3231 Device The NI WSN-3230/3231 device can be powered by either an external power supply or four AA alkaline or lithium batteries. Refer to the Specifications section for details about the input power and battery requirements. If both battery and external power are connected, the NI WSN-3230/3231 functions from the external power input. - Page 13 Reinstall the 2-position mini-combicon plug in the device and tighten the retaining screws. Caution You must use a UL Listed ITE power supply marked LPS with the NI WSN-3230/3231. The power supply must also meet any safety and compliance requirements for the country of use.
-
Page 14: Device Interface
Device Interface Figure 12 shows the NI WSN-3230/3231 device interface. Antenna I/O Connector WSN Connect Button Reset Button Signal Strength/Status LEDs Pro2 Port (Reserved for Future Use) User LED 5–30 V External Power Input Battery Slots/Polarity Indicators Figure 12. NI WSN-3230/3231 Node Interface NI WSN-3230/3231 User Guide and Specifications ni.com... - Page 15 Signal Strength/Status LED Indicators The NI WSN-3230/3231 has four signal strength/status LED indicators, which flash twice before displaying signal strength information. Table 1 shows the status and signal strength LED patterns. Table 1. Signal Strength and Status LED State/Node Status...
-
Page 16: Reset Button
Refer to your NI WSN gateway documentation for detailed instructions about how to connect a NI WSN-3230/3231 to the NI WSN gateway. The NI WSN-3230/3231 is equipped with a WSN connect button, as shown in Figure 12. The button controls network connection and the LEDs, which display connection status. - Page 17 NI WSN-3230 RS-232 Port Wiring the RS-232 Port The NI WSN-3230 has one 18 position combicon screw terminal for connectivity to RS-232, DIO, and sensor power. DGND DGND DGND SEN PWR 12V DIO 0 DGND DIO 1 DGND DIO PWR Figure 13.
-
Page 18: Battery Considerations
Battery Considerations The expected battery life of your NI WSN-3230 and NI WSN-3231 can vary greatly based on your NI LabVIEW WSN program, sampling interval, length and baud rate of serial transmission, serial cabling, temperature, and type of cells. The following graphs are provided as a reference to demonstrate estimated battery life under common conditions. - Page 19 Figure 16. Battery Life vs. Sampling Interval and Data Transmitted to the Gateway Test Conditions: 50 Bytes per serial message, 10 Values (Single Precision) sent back to Gateway per sampling interval Test Conditions: 9600 Baud, 50 Bytes per Serial Message © National Instruments Corporation NI WSN-3230/3231 User Guide and Specifications...
- Page 20 Figure 17. WSN-3230/1 Battery Life vs. Sample Interval at Various Transmit Intervals Controlling Digital Inputs and Outputs The following sections discuss how to configure the NI WSN-3230/3231 device for different types of input and output, and how to connect external devices to the NI WSN-3230/3231 DIO terminals.
- Page 21 You can connect only one external DIO PWR supply to the NI WSN-3230/3231. The power supply provides the current for the devices you connect to the NI WSN-3230/3231. Connect the power supply positive lead to DIO PWR terminal and the power supply negative lead to one of the DGND terminals.
- Page 22 When driving inductive loads, use an external flyback diode or snubber circuit as shown in Figure 20. Flyback Diode DIOx Device (Internal) External Power Low Side Switch Supply – DGND NI WSN-3230/3231 Figure 20. Connecting a Device to the NI WSN-3230/3231 in Drive Low (Sinking) Mode NI WSN-3230/3231 User Guide and Specifications ni.com...
- Page 23 High Side Switch External DIOx Power Device (Internal) – Supply Low Side Switch DGND NI WSN-3230/3231 Figure 22. Connecting a Device to the NI WSN-3230/3231 in Drive High and Low Mode © National Instruments Corporation NI WSN-3230/3231 User Guide and Specifications...
- Page 24 Connecting Digital Inputs You can connect a variety of sensors, switches, and industrial devices to the NI WSN-3230/3231 device. Refer to the Specifications section to ensure compatibility. 24V Sinking In 24V Sinking mode, the DIOx terminal has a low impedance to ground and input thresholds compatible with 24 V signaling.
- Page 25 1 to the channel and then reading a logical 1 from it. Powering an External Sensor The NI WSN-3230/3231 can provide up to 50 mA at 12 V to external sensors through its sensor power (SEN PWR 12V) terminal. You can configure this sensor power output using NI LabVIEW WSN software to turn on a sensor at any time.
-
Page 26: Sensor Power
–7 V to +12 V Data line ESD protection (human body model)..±8 kV Overvoltage protection...........±30 VDC Sensor Power Voltage ..............12 V ±10% Current ..............50 mA maximum Protection Short circuit proof..........Indefinitely Overvoltage protection........±30 V NI WSN-3230/3231 User Guide and Specifications ni.com... - Page 27 Sinking current (per channel) ........1 A maximum Output voltage Sourcing ............>(V –750 mV) with I <0.25 A DIO_PWR Sinking ............<90 mV with I <1 A <20 μA 3V TTL Logic mode pull-up ......>2 V with I © National Instruments Corporation NI WSN-3230/3231 User Guide and Specifications...
-
Page 28: Wireless Characteristics
International ...........+10 dBm maximum Modulation type.............DSSS (O-QPSK) Receiver sensitivity ..........–102 dBm Antenna Connector............Female RP-SMA connector VSWR............2.0 maximum Impedance ............50 Ω Directivity ............Omni Nominal gain............1.5 dBi Due to regulations, the frequency bands depend upon country of operation. NI WSN-3230/3231 User Guide and Specifications ni.com... -
Page 29: Power Requirements
External Power Caution You must use a UL Listed ITE power supply marked LPS with the NI WSN-3230/3231. The power supply must also meet any safety and compliance requirements for the country of use. Voltage range ............5 to 30 V Power input mating connector .......2-position mini-combicon,... -
Page 30: Safety Standards
Safety Standards The NI WSN-3230/3231 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 61010-1, CSA 61010-1 Note For UL and other safety certifications, refer to the product label, or go to ni.com/... -
Page 31: Electromagnetic Compatibility
AS/NZS CISPR 11: Group 1, Class A emissions • FCC 47 CFR Part 15B: Class A emissions • ICES-001: Class A emissions The NI WSN-3230/3231 also meets the requirements of the following EMC standards for intentional radiators: • EN 300 328 •... - Page 32 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. Japan The certified radio equipment is embedded in this device. 本機器には認証済み無線設備が内蔵されています Singapore Complies with IDA Standards DA105692 NI WSN-3230/3231 User Guide and Specifications ni.com...
- Page 33 Hereby, National Instruments, declares that this NI WSN-3230/3231 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-3230/3231 cumple [Spanish] con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE.
-
Page 34: Online Product Certification
överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Íslenska Hér með lýsir National Instruments yfir því að NI WSN-3230/3231 er í samræmi við [Icelandic] grunnkröfur og aðrar kröfur, sem gerðar eru í tilskipun 1999/5/EC. -
Page 35: 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 ni.com/support and follow the calling instructions or dial 512 795 8248.
Need help?
Do you have a question about the WSN-3230 and is the answer not in the manual?
Questions and answers