AN-X4-AB-DHRIO Gateway

EtherNet/IP™ to DH+ Gateway


The AN-X4-AB-DHRIO Gateway is designed to help customers initiate a phased migration approach to replacing or upgrading legacy PLC’s, HMI's, Drives, or Flex I/O adapters.

These solutions can be achieved by selecting the corresponding operating mode during the initial configuration.

The AN-X4-AB-DHRIO has a built-in webserver to view diagnostics, current configuration, upload configuration files, and set the operating mode. It is also DIN Rail Mountable.


Click on image(s) to enlarge
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.
Drag with the mouse. Click for close.


DH+ to EtherNet/IP™

1/ The operating mode acts as a bridge between an EtherNet/IP and a DH+ network.

  • Programming terminals, and/or processors on an EtherNet/IP network can access legacy processors on a DH+ network
  • Download to a PLC5 or SLC through RSLinx
  • Configured through web browser
  • Supports all DH+ baud rates (57.6, 115.2, and 230.4 K baud).

2/ The operating mode helps the communication between an Ethernet-Based processor with legacy processors on a DH+ network.

  • Support gathering data without changing existing PLC or SLC hardware


DH+ to Modbus TCP

This operating mode allows Modbus TCP Clients to access the PLC data from stations on a Data Highway Plus Network.

  • The Modbus TCP server supports up to 128 connections
  • Modbus Input and Output Registers are mapped to the PLC/SLC files for each station
  • Modbus TCP Unit/Slave ID data is mapped to the Data Highway Plus Station



This operating mode allows legacy PanelViews to be upgraded to a PanelView Plus 6 or PanelView Plus 7 via EtherNet/IP.

  • No changes to PLC code required
  • Supports up to 8 PanelViews on the same network.



This operating mode supports upgrading legacy Allen Bradley drives on Remote I/O to new EtherNet/IP-enabled drives.

  • No changes to PLC code required
  • Supports up to 4 EtherNet/IP drives
  • Configurable with ¼, ½, and full rack addressing
  • Supports all PowerFlex drives on EtherNet/IP.


Flex I/O Scanner

This operating mode allows PLC’s on Remote I/O to connect to and control 1794-AENT EtherNet/IP Flex adapters.

  • Designed to replace obsolete 1794-ASB adapters
  • Supports up to 16 EtherNet/IP connections
  • Each adapter and rack of discrete counts as a single connection. Each analog module counts as a single connection.


Remote I/O Scanner

This operating mode allows users to replace their existing Remote I/O PLC with a ControlLogix or CompactLogix PAC without having to replace existing racks of I/O.

  • Build new controller programs without interrupting existing controls, minimizing downtime
  • Supports up to 32 racks of Remote I/O
  • Supports all Remote I/O baud rates (57.6, 115.2, and 230.4 K baud), and Remote I/O addressing 0 to 76 octal
  • Auto-Configuration utility discovers baud rate and maps discrete I/O, reducing configuration errors


Bridge Mode

This operating mode allows the module to listen to all messages on an Ethernet network and use its “BridgeIP” mapping to forward the messages out of the DH+/BH port. The messages received on the DH+/BH port can be forwarded to the devices connected to its Ethernet port.

  • Allows the use of existing Blue Hose cabling for EtherNet/IP communication:
    • I/O to Controllers
    • HMI to SCADA
    • Programming Controllers via PC
  • Support for up to 64 AN-X4-BRG, each on different Ethernet network
  • DH+ mode supports up to 230k Baud Rate
  • Blue Hose mode supports up to 460K Baud Rate





1 RJ45 10/100 Mbps Ethernet port
1 Phoenix 3-pin power connector
1 Phoenix 3-pin connector network connector

Typical Power Consumption

240 mA @ 12 Vdc or 120 mA @ 24 Vdc

Maximum Power Dissipation

2.9 W

Operating Temp

32°F to 122°F (0ºC to 50ºC)

Storage Temperature

-40°F to 185°F (-40ºC to 85ºC)


107 x 98 x 34 mm (4.18 x 3.86 x 1.33 in)
Not including connectors


5% to 95% RH, with no condensation


REACH - Declaration of Conformance 192,09 kB Última Modificación 26.12.2023
EU-RoHS Certificate of Compliance 193,92 kB Última Modificación 26.12.2023
Korean KC Registration 277,55 kB Última Modificación 02.02.2023
UL/cUL; Class 1, Div 2 103,83 kB Última Modificación 02.02.2023
Declaration of Conformity (CE) 194,24 kB Última Modificación 02.02.2023