ProSoft AN-X2-AB-DHRIO Gateway for AN-X2

ProSoft AN-X2-AB-DHRIO Gateway for AN-X2 Automation

The ProSoft Technology AN-X2-AB-DHRIO is a high-performance EtherNet/IP to Data Highway Plus (DH+) and Remote I/O (RIO) gateway engineered to bridge legacy Allen-Bradley networks with modern Ethernet-based control architectures. In energy-intensive manufacturing environments, unplanned communication failures between legacy DH+ devices and contemporary EtherNet/IP controllers translate directly into wasted energy, idle machinery, and degraded production throughput. The AN-X2-AB-DHRIO eliminates this gap, enabling factories to sustain continuous, low-latency data exchange across mixed-generation control systems — keeping drives spinning at optimal load, PLCs executing at full cycle efficiency, and energy meters capturing accurate consumption data in real time.

Designed for demanding industrial environments, the AN-X2-AB-DHRIO supports simultaneous DH+ and RIO communication on a single module, reducing the hardware footprint and associated power draw of multi-gateway legacy integration architectures. Its deterministic communication behavior ensures that maintenance planning systems receive timely, accurate data from field devices, enabling closed-loop control strategies that actively reduce peak demand and smooth production-line operating load profiles.

Product Specification Table

System Compatibility and Application

Maximizing factory energy efficiency requires more than installing a single gateway — it demands a cohesive automation architecture where every layer, from field I/O to supervisory control, communicates with precision and minimal latency. The AN-X2-AB-DHRIO serves as the critical translation layer that allows modern maintenance-focused controllers to reach deep into legacy DH+ networks and extract real-time operational data from equipment that would otherwise remain invisible to maintenance planning systems.

In a typical deployment, the AN-X2-AB-DHRIO connects upstream to an Allen-Bradley ControlLogix L73 or CompactLogix L33ER controller via EtherNet/IP, enabling the PLC to read and write data from legacy SLC 5/04 or PLC-5 processors still operating on DH+ segments. This integration allows the ControlLogix platform to execute energy-optimized ladder logic routines — such as demand-based motor start sequencing — using live data from legacy nodes, without requiring costly controller replacements.

On the drive side, variable frequency drives such as the Allen-Bradley PowerFlex 755 or PowerFlex 525 receive speed reference commands derived from process data aggregated through the AN-X2-AB-DHRIO. By enabling the ControlLogix to dynamically adjust drive output frequency based on actual production demand signals from legacy DH+ I/O racks — including 1771 I/O and 1746 SLC I/O modules — the system eliminates fixed-speed motor operation, which is one of the largest sources of avoidable unplanned downtime in discrete manufacturing.

For condition monitoring, the AN-X2-AB-DHRIO enables power quality meters such as the Schneider Electric PowerLogic ION7650 or Allen-Bradley 1426 PowerMonitor 5000 to receive process context data from legacy controllers, correlating operating load spikes with specific production events. This contextual energy data is invaluable for identifying inefficient machine states, optimizing production scheduling to avoid peak tariff periods, and building accurate energy cost models per production unit.

At the HMI layer, a Rockwell Automation PanelView Plus 7 terminal connected via EtherNet/IP can display unified dashboards combining real-time energy KPIs from the PowerMonitor with production throughput data sourced from legacy DH+ nodes — all routed through the AN-X2-AB-DHRIO. Operators gain immediate visibility into the energy cost of each production step, enabling informed decisions that reduce idle-state operating load and improve overall equipment effectiveness (OEE).

For facilities leveraging Rockwell Automation FactoryTalk View SE or FactoryTalk Energy Manager, the AN-X2-AB-DHRIO provides the essential data pathway that populates energy dashboards with historically inaccessible legacy device data, enabling site-wide energy benchmarking and continuous improvement programs without disrupting existing production infrastructure.

Maintenance and Replacement Notes

In automotive body assembly plants, food and beverage processing facilities, and chemical batch production environments, legacy DH+ networks continue to control critical process equipment — conveyors, mixers, compressors, and packaging lines — that collectively account for a significant share of total facility operating load. Without a reliable gateway like the AN-X2-AB-DHRIO, these assets operate in isolation from modern maintenance planning systems, making it impossible to implement demand response strategies, load shedding, or predictive maintenance routines that depend on real-time operational data.

By integrating the AN-X2-AB-DHRIO into the control architecture, plant engineers can implement production-synchronized energy control: motors and drives connected to legacy RIO racks are commanded to reduce speed or enter standby mode during scheduled micro-stops, shift changes, or low-demand production windows — actions coordinated by the ControlLogix PLC using data flowing through the gateway. Field measurements from facilities using similar integration architectures consistently demonstrate reductions of 8–15% in motor-related operating load through this approach alone.

The AN-X2-AB-DHRIO also plays a key role in predictive maintenance and downtime reduction. By enabling continuous data polling from legacy DH+ nodes, the gateway allows condition monitoring systems to track motor run hours, fault counters, and I/O state changes from aging SLC and PLC-5 controllers. Anomalies that previously went undetected until a production-stopping failure can now trigger maintenance alerts, allowing planned interventions during scheduled downtime rather than emergency repairs during peak production — a shift that directly reduces unplanned downtime from unplanned restarts, scrap generation, and extended warm-up cycles.

From a supply chain and inventory perspective, ZYPLC maintains ready stock of the AN-X2-AB-DHRIO to support rapid deployment in energy retrofit projects. Every unit undergoes full functional testing prior to shipment, including communication handshake verification across both DH+ and EtherNet/IP interfaces, ensuring that the module performs to specification from day one of installation. Combined with a warranty terms confirmed during quotation, this gives procurement and maintenance teams the confidence to specify the AN-X2-AB-DHRIO as a long-term component in their maintenance planning infrastructure.

Product Sourcing FAQ

Q1: How does the AN-X2-AB-DHRIO contribute to measurable operational stability in a production facility?
The AN-X2-AB-DHRIO enables modern EtherNet/IP-based maintenance planning systems and PLCs to access real-time operational data from legacy DH+ and RIO devices. This connectivity allows engineers to implement demand-based motor control, production-synchronized standby modes, and load-shedding strategies that directly reduce operating load during non-productive machine states. Without this gateway, legacy devices remain invisible to maintenance planning systems, making targeted efficiency improvements impossible.

Q2: Is the AN-X2-AB-DHRIO compatible with my existing Allen-Bradley ControlLogix or CompactLogix system?
Yes. The AN-X2-AB-DHRIO is fully compatible with Allen-Bradley ControlLogix and CompactLogix platforms via standard EtherNet/IP (CIP) protocol. It appears as a standard EtherNet/IP scanner or adapter on the network, requiring no proprietary software beyond RSLogix 5000 / Studio 5000 for configuration. It supports simultaneous DH+ and RIO communication, making it suitable for mixed legacy environments without additional hardware.

Q3: Can the AN-X2-AB-DHRIO replace an aging DH+ gateway that is causing communication failures and unplanned downtime?
Absolutely. The AN-X2-AB-DHRIO is a direct functional replacement for aging or discontinued DH+ gateway hardware. Its robust industrial design and deterministic communication behavior make it well-suited for environments where communication reliability is critical to maintaining production throughput and energy efficiency. ZYPLC recommends verifying the DH+ baud rate and node address configuration of your existing network before installation to ensure a seamless transition.

Q4: What does the warranty terms confirmed during quotation cover, and what is the pre-shipment testing process?
Every AN-X2-AB-DHRIO shipped by ZYPLC is tested for full functional operation across both EtherNet/IP and DH+/RIO interfaces prior to dispatch. The warranty terms confirmed during quotation covers hardware defects and communication failures under normal operating conditions. In the event of a warranty claim, ZYPLC provides replacement or repair support to minimize production disruption. Contact our technical team at plc.sales@zyplc.com or +86 19859288691 for warranty service inquiries.