Overview
The Allen-Bradley 440R-ENETR is a network interface module designed to integrate Guardmaster safety relays with EtherNet/IP industrial networks. This Series B dual-port interface bridges optical communication from safety relay systems to standard Ethernet connectivity, enabling real-time diagnostics and control signal exchange. The module mounts on standard DIN rail (IEC 35 × 7.5 × 1 mm) and operates on 24V DC, making it compatible with typical industrial control cabinet installations.
Key Features
- Dual EtherNet/IP RJ-45 ports supporting daisy-chain, ring, star, and tree network topologies
- Connects up to six Guardmaster safety relays (GSR, DG, DI, DIS, EM, EMD, GLP, GLT series) via optical bus
- GuardLink technology for advanced safety diagnostics and device status monitoring
- Slim 22.5 mm DIN rail mount—no additional enclosure space required
- Removable terminal block for accelerated commissioning
- Integrated status indicators: module, link, and network health LEDs
- Multi-certification: CCC, CE, CUL, RCM, UL for global installations
Technical Specifications
- Supply Voltage: 24V DC
- Communication Protocol: EtherNet/IP (Common Industrial Protocol / CIP)
- Network Ports: 2 × RJ-45 (dual-port pass-through, 100 Mbps)
- Relay Capacity: Up to 6 Guardmaster safety relays
- Mounting: DIN rail (IEC 35 × 7.5 × 1 mm top-hat)
- Operating Temperature: 0–55°C (32–131°F)
- Dimensions: 113.6 × 22.5 × 111.4 mm (4.47 × 0.89 × 4.39 in.)
- Weight: 0.34 lb (0.15 kg)
- Safety Classification: Not safety-rated (gateway module only)
- Certifications: CCC, CE, CUL, RCM, UL
- Series: 440-R (Guardmaster)
Typical Applications
- Machine safety systems requiring networked relay monitoring and real-time diagnostics
- Manufacturing facilities with distributed safety relay architectures (automotive, food, packaging)
- Emergency stop and safety interlock integration with supervisory control networks
- Hazardous location (ATEX/NFPA) installations requiring certified safety interface modules
- Cross-fault and over-current diagnostic integration with ControlLogix / CompactLogix systems
Compatibility & Replacements
Compatible With
- Guardmaster GSR safety relays (DI, DIS, EM, EMD, GLP, GLT, DG models with optical bus)
- Allen-Bradley CompactLogix and ControlLogix PLCs
- RSLogix 5000 software version 19 or later
- EtherNet/IP networks (ODVA-compliant linear, star, ring topologies)
- FactoryTalk Linx for device discovery and browsing
Replaces / Drop-In Replacement For
Earlier Guardmaster network interface modules (verify compatibility with your system integrator before ordering for specific legacy part numbers).
Works With
- RSLogix 5000 and Studio 5000 Logix Designer (version 19+)
- FactoryTalk Linx for EtherNet/IP device configuration
- GuardLink diagnostic software for advanced relay monitoring and troubleshooting
- Common Industrial Protocol (CIP) stack for real-time data exchange
