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The ProSoft RLX2-IHNF-W-E is a high-performance industrial wireless gateway that bridges Wireless HART field instruments to modern control systems via standard Ethernet protocols. Designed for demanding process automation environments, the RLX2-IHNF-W-E acts as both a Wireless HART network manager and a protocol converter, enabling seamless data exchange between battery-powered pressure, temperature, and level transmitters and PLCs or DCS platforms such as Rockwell ControlLogix, Emerson DeltaV, or Siemens PCS7. By eliminating the need for extensive analog wiring, the ProSoft RLX2-IHNF-W-E significantly reduces installation costs while enhancing visibility into remote or hard-to-access assets.
As part of ProSoft’s robust RLX2 wireless product family, the RLX2-IHNF-W-E supports up to 100 Wireless HART devices across multiple subnets, with configurable update rates as fast as 8 seconds (or 1-second burst mode for critical alarms). It features dual Ethernet ports for daisy-chaining or network segmentation and supports both Modbus TCP and EtherNet/IP™ CIP messaging—ensuring broad compatibility across vendor ecosystems. The ProSoft RLX2-IHNF-W-E is engineered for reliability in harsh conditions, with wide temperature tolerance, conformal coating, and certifications for use in hazardous locations, making it ideal for oil & gas, chemical, water/wastewater, and power generation applications where safety and uptime are non-negotiable.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | RLX2-IHNF-W-E |
| Manufacturer | ProSoft Technology (a Rockwell Automation company) |
| Product Type | Wireless HART Gateway / Protocol Converter |
| Wireless Standard | Wireless HART (IEC 62591), 2.4 GHz FHSS, 16 channels |
| Max Connected Devices | Up to 100 Wireless HART field instruments |
| Ethernet Interfaces | 2 × 10/100BASE-TX (RJ45), auto-MDI/MDIX |
| Supported Protocols | Modbus TCP Server/Client, EtherNet/IP™ (Adapter), HTTP, SNMP |
| Power Supply | 10–30 VDC (typically powered via terminal block or DIN rail PSU) |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Enclosure Rating | IP20 (indoor), optional IP67 enclosure available |
| Hazardous Area Certifications | ATEX, IECEx, UL/cUL Class I Div 2, Zone 2 |
| Dimensions | 120 mm × 110 mm × 75 mm (W×H×D), DIN rail mountable |
Main Features and Advantages
Comprehensive Wireless HART network management:
The ProSoft RLX2-IHNF-W-E functions as a full Wireless HART network manager, automatically handling device joining, mesh routing, time synchronization, and link quality optimization. Unlike simple repeaters, it actively maintains network health and provides real-time diagnostics on signal strength, battery levels, and device status—accessible via built-in web interface or integrated asset management systems like Emerson AMS.
Dual-protocol support for maximum control system flexibility:
With native support for both Modbus TCP and EtherNet/IP™, the RLX2-IHNF-W-E eliminates the need for additional protocol gateways. Engineers can map HART process variables, diagnostics, and device alerts directly to PLC tags in Rockwell Studio 5000 or Modbus registers in SCADA systems—enabling true plug-and-play integration without custom scripting.
Robust performance in electrically noisy environments:
Utilizing frequency-hopping spread spectrum (FHSS) across 16 channels in the 2.4 GHz ISM band, the ProSoft RLX2-IHNF-W-E resists interference from Wi-Fi, Bluetooth, and industrial RF sources. Its adaptive mesh topology ensures data reaches the gateway even if line-of-sight is blocked—critical for tank farms, flare stacks, or offshore platforms where physical obstructions are common.
Certified for hazardous and extreme environments:
The RLX2-IHNF-W-E carries global certifications for use in explosive atmospheres (ATEX/IECEx Zone 2, UL Class I Div 2), allowing deployment near pumps, compressors, or storage vessels without costly purged enclosures. Its wide operating temperature range and conformal-coated PCB ensure years of maintenance-free operation in deserts, arctic sites, or humid coastal plants.
Easy configuration and remote monitoring:
A built-in web server enables browser-based setup—no proprietary software required. Users can scan for devices, assign tags, set update intervals, and view network maps from any connected workstation. Additionally, SNMP traps and email alerts can be configured to notify maintenance teams of low battery or communication failures before they impact operations.
Application Field
The ProSoft RLX2-IHNF-W-E is extensively used in oil & gas upstream and midstream operations, where it connects wireless pressure and temperature sensors on wellheads, separators, and pipeline pig launchers to central SCADA systems—eliminating miles of analog cabling across remote lease sites. In refineries and chemical plants, the RLX2-IHNF-W-E aggregates data from Wireless HART corrosion probes, steam trap monitors, and tank level gauges in classified areas, feeding real-time insights into predictive maintenance platforms while complying with stringent safety standards.
Water and wastewater utilities deploy the RLX2-IHNF-W-E to monitor lift stations, reservoir levels, and flow meters across dispersed municipal networks, reducing cellular data costs by using private Wireless HART backhaul instead of individual cellular modems. In power generation, it enables wireless vibration and temperature monitoring on auxiliary pumps and fans, integrating seamlessly with plant historians via Modbus TCP. Because the RLX2-IHNF-W-E supports both legacy Modbus systems and modern EtherNet/IP™ architectures, it serves as a future-proof bridge during phased digital transformation initiatives—making it equally valuable in brownfield retrofits and greenfield IIoT deployments.
Related Products
RLX2-IHNF-W: Base model without hazardous area certifications
RLX2-IHNF-W-E-NEMA: Version with NEMA 4X/IP66 enclosure for outdoor use
MVI56-HART: ProSoft’s wired HART interface module for ControlLogix chassis
RLX2-BB-24: 24 VDC DIN-rail power supply compatible with RLX2-IHNF-W-E
WHZ-ANT-OMNI: High-gain omnidirectional antenna for extended Wireless HART range
AMS Device Manager: Emerson software that integrates directly with RLX2-IHNF-W-E for asset health monitoring
ControlLogix 1756-L7x: Rockwell PLC commonly paired with RLX2-IHNF-W-E via EtherNet/IP™
ProSoft Configuration Builder: Optional PC tool for advanced mapping and firmware updates
Installation and Maintenance
Pre-installation preparation: Before mounting the ProSoft RLX2-IHNF-W-E, verify that the installation location provides clear line-of-sight to Wireless HART field devices or at least one intermediate router node. Ensure the 10–30 VDC power source is clean and properly fused—voltage spikes can damage internal electronics. For hazardous area installations, confirm compliance with local certification markings (e.g., ATEX II 2G Ex nA IIC T4 Gc). Use shielded Ethernet cable with grounded shields when connecting to control networks to minimize EMI coupling.
Maintenance recommendations: Monitor the RLX2-IHNF-W-E network health quarterly via its web interface—review device join status, RSSI values, and battery estimates. Replace field device batteries proactively when levels drop below 20%. Keep firmware updated to the latest ProSoft release to benefit from security patches and performance enhancements. Store configuration backups (.cfg files) on a secure network drive; these can be restored in minutes during hardware replacement. Avoid exposing the unit to condensation or direct water spray unless using the NEMA-rated variant.
