1719-AENTR | Allen-Bradley Ex I/O EtherNet/IP dual-port adapter module for Zone 2/Class I Div. 2

The 1719-AENTR is an Ex I/O EtherNet/IP adapter module developed by Allen-Bradley for connecting intrinsically safe (Ex) I/O devices to EtherNet/IP-based industrial control systems. It enables seamless communication between distributed field devices and Logix-based controllers such as CompactLogix or ControlLogix. Designed specifically for use in hazardous areas, this module can be installed in Zone 2 or Class I, Division 2 locations, offering safe integration in explosion-prone environments. It provides a secure and reliable link for real-time data transfer from field instrumentation to the control system. This enhances process visibility and control precision in critical industries like oil & gas, chemical processing, and pharmaceuticals. Its compact form factor and robust industrial rating make it ideal for both safe and hazardous area applications.

The 1719-AENTR does not require a separate external power supply for the adapter itself; instead, it draws its power directly from the backplane. This simplifies wiring and reduces panel complexity by eliminating the need for additional power connections. However, the connected Ex I/O modules may require separate intrinsically safe power sources, depending on system configuration. The power draw from the backplane is minimal, ensuring efficient operation even in dense installations. System designers must ensure that the backplane power budget accounts for the total load of all attached modules. This design supports compact, clean, and highly maintainable control system layouts.

Yes, the 1719-AENTR supports the HART (Highway Addressable Remote Transducer) protocol, which allows for the integration of HART-enabled field devices into EtherNet/IP-based control systems. This provides users with access to both analog process values and digital diagnostic data from intelligent instruments. HART support enhances the value of the Ex I/O system by allowing predictive maintenance and configuration from the controller. When paired with HART-enabled input modules, the adapter enables full utilization of extended instrument features. This functionality reduces the need for additional signal converters or monitoring systems. It significantly increases the flexibility and capability of the I/O architecture in hazardous environments.

No, the 1719-AENTR does not support DeviceNet or ControlNet; it is designed exclusively for EtherNet/IP networks. This reflects the industry shift toward Ethernet-based automation for faster speed, greater scalability, and more robust diagnostics. If DeviceNet connectivity is needed, users must employ a communication bridge or gateway module. The adapter’s firmware and hardware are optimized for IP-based communication only, ensuring maximum throughput and network simplicity. Eliminating support for legacy protocols reduces complexity and focuses on streamlined, high-performance networking. For hybrid systems, dedicated protocol converters can be implemented to link older DeviceNet nodes.

The 1719-AENTR is configured using an Add-On Profile (AOP) in Studio 5000 Logix Designer. After selecting the module and assigning an IP address, users can define connections to Ex I/O modules and set update rates and connection parameters. The configuration process includes defining slot positions, enabling HART support (if applicable), and assigning controller tags for each input/output. Diagnostic data such as module status, communication health, and device faults can be monitored in real time. The intuitive interface makes integration simple even in complex systems. Once downloaded to the controller, the module can be monitored via RSLinx or FactoryTalk View.