AN-X4-AB-DHRIO ProSoft Communication Gateway Module

• Brand
  ProSoft
• Model
  AN-X4-AB-DHRIO
• Product Name
  EtherNet/IP to DH+ / Remote I/O Communication Gateway Module
• Dimensions
  107 mm × 98 mm × 34 mm
• Weight
  0.18 kg
• Place of Origin
  United States
• HS Code
  85176200
• Operating Temperature
  0 °C to +50 °C
• Storage Temperature
  ‑40 °C to +85 °C
• Power Supply
  120 mA at 24 VDC
• Warranty
  12 month
• Status
  new

ProSoft AN-X4-AB-DHRIO

Input & Output Interfaces

1 × 10/100 Mbps RJ45 EtherNet/IP Ethernet port for Ethernet-side data exchange

1 × Phoenix terminal-block interface with dual-mode functionality, configurable for either DH+ (Data Highway Plus) or Allen-Bradley Remote I/O field-bus signals on the field side

No physical discrete digital or analog I/O terminals; all I/O data consists of logical mapped variables transmitted via gateway communication channels

Power Voltage & Current

Power input range: 12-24 VDC, connected via 3-pin Phoenix MSTB 2.5/3-ST-5.08 connector (Chassis GND, DC-, DC+)

Operating current consumption: 240 mA at 12 VDC; 120 mA at 24 VDC

Maximum power dissipation: 2.9 W

Built-in reverse-polarity protection for power supply input

Supported Software

On-board embedded Web-Server: supports browser-based configuration, diagnostic checking and firmware upgrade without additional PC software installation

ProSoft AN-X Configuration Tool: Windows-oriented auxiliary configuration utility

Rockwell Automation Logix Designer / RSLogix 5000: import corresponding EDS files for ControlLogix and CompactLogix project deployment

RSLinx Classic / RSLinx Enterprise: realize programming and real-time monitoring for legacy DH+ / Remote I/O devices such as PLC-5 and SLC-500 through this gateway

HMI applications: FactoryTalk View and other third-party HMI platforms compatible with EtherNet/IP or Modbus-TCP

Supported Controller & Operating Systems

PLC / Controller

Modern controllers: ControlLogix, CompactLogix (such as 1769-L33ER) connected over EtherNet/IP

Legacy DH+ devices: Allen-Bradley PLC-5, SLC-5/04, SLC-5/03

Legacy Remote I/O hardware: AB Remote I/O adapters, Flex I/O modules, 1771 series I/O

Modbus-TCP client devices are allowed to access DH+ data (firmware version ≥4.15.1)

PC Operating System

Configuration workstation: Windows 10 / Windows 11 (running Logix Designer, RSLinx and AN-X configuration tool)

Web-UI setup: compatible with mainstream web browsers under Windows, Linux and macOS environments

Communication Protocols

EtherNet/IP (CIP), DH+ (57.6 K, 230.4 K, 2 K baud), Allen-Bradley Remote I/O, PCCC, Modbus-TCP (server mode)

Working Principle of ProSoft AN-X4-AB-DHRIO

This high-performance industrial communication gateway enables bidirectional data protocol conversion between EtherNet/IP and Allen-Bradley DH+ or Remote I/O fieldbus.

Equipped with an embedded processor, dual independent protocol stacks and galvanic-isolated interface circuits, the gateway runs as an EtherNet/IP adapter on the Ethernet side. On the field-bus side, it can be configured as DH+ master/slave or Remote I/O scanner according to practical application requirements.

Remote I/O Operation Mode

Under Remote I/O mode, the gateway serves as a Remote I/O scanner. It cyclically transmits output data issued by the upper-level EtherNet/IP PLC down to field remote I/O modules through the Remote I/O bus, and collects input status signals from on-site I/O hardware. All collected I/O data is mapped to EtherNet/IP assembly tags, which modern Logix-series controllers can directly read and write over the EtherNet/IP network.

DH+ Operation Mode

Under DH+ mode, the gateway behaves as an independent DH+ network node. It exchanges PCCC protocol messages with legacy DH-plus devices including PLC-5 and SLC-500. It converts DH+ PCCC read-write instructions into standard EtherNet/IP CIP messages, and transforms feedback data from legacy DH+ equipment into EtherNet/IP-compatible data for upper-level controllers.

Users set data mapping rules either through the embedded web server or the ProSoft AN-X configuration tool. Configurable items contain data length, address offset and data transmission direction for bidirectional interaction across two protocol domains. After configuration download, the mapping table is saved inside non-volatile memory of the gateway.

Galvanic isolation is applied between the EtherNet/IP Ethernet port and DH+/Remote I/O terminal port. This design restrains ground-loop interference and shields modern Ethernet control systems from electrical noise generated by old-generation field-bus cables.

Built-in diagnostic functions continuously monitor link health status on both network sides. It identifies communication timeout events, field-bus abnormalities and internal module failures. Diagnostic statistics can be retrieved via web interface or EtherNet/IP object attributes.

The gateway cannot run PLC user logic by itself. Its core function is protocol conversion and transparent data forwarding between heterogeneous bus systems. It keeps data synchronized and completes signal handshaking, guaranteeing data consistency between EtherNet/IP-based controllers and legacy DH+ / Remote I/O field devices.

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