NI-9795 C Series Wireless Sensor Network Gateway
The NI-9795 is a C Series wireless sensor network gateway used to integrate compatible NI WSN measurement nodes with a supported CompactRIO system. It provides the radio interface between distributed wireless nodes and the CompactRIO controller.
Operating in the 2.4 GHz band, the gateway is suited to applications where installing signal cables between sensors and the central monitoring system would be difficult, costly or impractical. The module supports distributed measurement architectures for industrial monitoring, facilities management, research and machine diagnostics.
Key Features of the NI-9795
- C Series wireless sensor network gateway
- 2.4 GHz wireless communication
- Designed for compatible NI WSN measurement nodes
- Integrates wireless data with CompactRIO systems
- Supports distributed measurement applications
- One NI-9795 gateway supported per compatible chassis
- Configuration through the CompactRIO controller
- RIO Scan Interface operation
- Up to approximately 150 m outdoor line-of-sight range
- Suitable for monitoring difficult-to-wire locations
- Compact modular C Series form factor
NI-9795 Technical Specifications
| Product Model | NI-9795 |
|---|---|
| Product Type | C Series wireless sensor network gateway |
| Wireless Band | 2.4 GHz |
| System Platform | Compatible CompactRIO chassis and controller |
| Supported Interface Mode | RIO Scan Interface |
| Gateways per Chassis | 1 |
| Maximum Outdoor Range | Approximately 150 m under suitable line-of-sight conditions |
| Configuration | Determined through the CompactRIO chassis and controller |
| Software Environment | NI MAX and supported NI WSN/LabVIEW software |
| Approximate Weight | 136 g without antenna |
Wireless range is affected by antenna orientation, structures, interference, mounting position and the number of obstacles between the gateway and measurement nodes. The maximum stated range should not be treated as a guaranteed indoor operating distance.
NI-9795 Part Number and Accessories
| Item | Part Number | Description |
|---|---|---|
| NI-9795 | 781992-01 | 2.4 GHz C Series WSN gateway module |
| 2.4 GHz Antenna | Configuration dependent | Provides the required radio connection for the gateway |
| CompactRIO Controller and Chassis | Model dependent | Hosts and controls the NI-9795 gateway |
| NI WSN Measurement Nodes | Model dependent | Remote wireless devices that acquire sensor or serial data |
The NI-9795 is part of a wireless measurement system rather than a standalone sensor interface. A complete deployment requires a supported CompactRIO platform, compatible WSN nodes, antennas and the appropriate legacy software environment.
CompactRIO and Wireless Integration
The gateway allows wireless measurements to become part of a CompactRIO application. Data received from remote nodes can be combined with measurements from conventional wired C Series modules in the same monitoring architecture.
Gateway properties are determined through the CompactRIO controller rather than by treating the NI-9795 as an independent PC-connected radio device.
Wireless Range and Site Planning
Open outdoor installations can provide substantially greater range than indoor environments containing walls, machinery and metal structures. A site survey should be performed before the gateway and nodes are permanently mounted.
Gateway antennas should be kept away from large conductive surfaces, enclosed metal cabinets and strong sources of 2.4 GHz interference whenever possible.
NI-9795 Applications
- Distributed environmental monitoring
- Machine-condition monitoring
- Building and facilities monitoring
- Energy-use monitoring
- Remote temperature acquisition
- Industrial equipment monitoring
- Research and experimental measurements
- Monitoring difficult-to-wire locations
- Temporary measurement installations
- Mixed wired and wireless CompactRIO systems
Industrial Monitoring
Wireless nodes can be positioned near machines, storage areas or process equipment while the NI-9795 transfers their measurements to a central CompactRIO controller.
Facilities and Environmental Measurements
The gateway can support monitoring systems distributed across rooms, buildings or outdoor installations. Typical measurements can include temperature, humidity, equipment state and other variables supported by the selected WSN nodes.
NI-9795 Installation Workflow
Step 1: Confirm Legacy-System Compatibility
Verify that the selected CompactRIO controller, chassis, NI WSN nodes and software version support the NI-9795.
Step 2: Install the Gateway
Power down the system and install the gateway in the supported C Series slot according to the CompactRIO installation instructions.
Step 3: Attach and Position the Antenna
Connect the appropriate antenna and place it where obstacles and radio interference are minimized.
Step 4: Add the Gateway to the Project
Configure the CompactRIO controller and gateway through NI MAX or the applicable LabVIEW project environment.
Step 5: Join the Wireless Nodes
Associate compatible nodes with the gateway and verify communication with each measurement location.
Step 6: Validate the Radio Link
Check link reliability at the intended node positions before completing permanent mounting.
NI-9795 Troubleshooting
The NI-9795 is not detected
Verify that the gateway is installed in a supported chassis and that the CompactRIO controller and legacy NI WSN software are correctly configured.
A wireless node cannot join the network
Confirm node compatibility, network configuration and radio range. Restart the association procedure and move the node closer to the gateway for initial testing.
The wireless connection is intermittent
Check antenna mounting, distance, obstructions and nearby 2.4 GHz equipment. Reposition the gateway or nodes to improve the radio path.
Measurements update slowly
Review the node sampling and transmission settings. Wireless sensor networks normally prioritize power efficiency and distributed monitoring rather than high-speed waveform acquisition.
The gateway properties cannot be changed directly
Configure the settings through the associated CompactRIO controller. NI documentation specifies that NI-9795 gateway settings are determined by the chassis and controller.
NI-9795 Comparison
| Model | Architecture | Best Suited For |
|---|---|---|
| NI-9795 | C Series WSN gateway for CompactRIO | Integrating wireless nodes into embedded monitoring systems |
| NI WSN-9791 | Ethernet-connected WSN gateway | Networks requiring a standalone Ethernet gateway |
| Wired C Series Modules | Direct sensor wiring to chassis | Higher-speed or deterministic local measurements |
Recommended Related Products
Frequently Asked Questions
What is the NI-9795?
The NI-9795 is a 2.4 GHz C Series gateway that connects compatible NI wireless sensor nodes to a supported CompactRIO system.
Is the NI-9795 a measurement module?
No. It is a wireless gateway. Measurement channels are provided by the compatible remote WSN nodes.
How many NI-9795 gateways can be installed in a chassis?
The documented configuration supports one gateway per compatible CompactRIO chassis.
What is its maximum wireless range?
The stated outdoor range is approximately 150 m under suitable conditions. Actual range depends strongly on the installation environment.
What is the NI-9795 part number?
The standard ordering part number is 781992-01.
Request a Quote for the NI-9795
Contact us for availability and configuration assistance for the NI-9795 C Series Wireless Sensor Network Gateway. Because this is a legacy WSN product, verify controller, chassis, node and software compatibility before ordering.
