1761-NET-AIC Replacement, Rockwell, Allen-Bradley, EtherNet/IP, MicroLogix, SLC, DH485, Bridge, Gateway, 1756, 1769, PanelView, PanelView Plus, PV800, PLC5, Mapping, Tags, Direct-to-Tag, 1761-NET-AIC, EtherNet/IP to DH485, DH485 to EtherNet/IP, DH485R, DH485 Router
DH485 ROUTER Status = Discontinued
A-DH485R
Note: This product has been replaced by the DH485 Series Router - A-DH485R/B
The DH485 Router provides intelligent data routing between EtherNet/IP and DH485 which can help simplify the migration from PLC5, and SLC systems to ControlLogix or CompactLogix platforms, where a DH485 interface is required.
- Intelligent routing to Logix/SLC/MicroLogix
- Direct-to-Tag Technology
- Supports PLC5/SLC mapping
- Supports Logix programming over Ethernet for Serial interfaces (SLC/MicroLogix)
- Supports interfacing of PanelView Plus and PV800 terminals from Ethernet to Serial
- Can be used to replace the 1761-NET-AIC
- RS485 port
- Redundancy supported
Overview
DH485 Router Modes
The DH485 Router is able to transfer data from a DH485 device to a maximum of three Logix controllers. The module operates in one of four modes, simplifying the configuration for all applications.
Mode |
Description |
Message Initiator |
| Transparent PCCC | The DH485 Router will redirect DF1 PCCC messages to a Logix controller at a preconfigured EtherNet/IP path. Logix PLC Mapping configuration is also required. | Remote Device |
| Reactive Tag | The DH485Router will convert DF1 PCCC messages to Logix controller tag reads or tag writes. No Logix PLC Mapping configuration is required. | Remote Device |
| Scheduled Tag | The DH485 Router transfers data between a DH485 device and a number of Logix tags, using a preconfigured scheduled. No Logix or remote device configuration is required. | DH485 Router |
| Unscheduled | The DH485 Router transfers messages received from a Logix Message Instruction. | Logix (Msg) |
Free Configuration Software
The DH485 Router is configured using the Aparian Slate application. Slate offers various configuration methods, including a controller tag browser.
Add to IO Tree in RSLogix
The module can operate in both a Logix “owned” and standalone mode. With a Logix connection the input and output assemblies will provide additional diagnostics information which will be available in the Logix controller environment.
1761-NET-AIC Replacement
The DH485 Router can be used as a replacement for the 1761-NET-AIC. The router converts DH485 to EtherNet/IP directly so a DF1 is no longer required.
Simple Installation
The module uses RS485 for DH485 communication. The RS485 port also uses a terminal block for convenient installation.
Status Diagnostics
A built-in webserver provides detailed diagnostics of system configuration and operation, including the display of received DH485 communication packets, without the need for any additional software.
Application
Example of a typical network setup:

Programming SLCs and MicroLogix via Aparian's DH485 Router:

Old Architecture using 1762-NET-ENI and 1762-NET-AIC

New Architecture after migration from 1762-NET-ENI and 1762-NET-AIC:

Specification
Electrical
| Specification | Rating |
| Power requirements | Input: 10 – 28V DC, (70 mA @ 24 VDC) |
| Power consumption | 1.7 W |
| Connector | 3-way terminal |
| Conductors | 24 – 18 AWG |
| Enclosure rating | IP20, NEMA/UL Open Type |
| Temperature | -20 – 70 °C |
| Earth connection | Yes, terminal based |
| Emissions | IEC61000-6-4 |
| ESD Immunity | EN 61000-4-2 |
| Radiated RF Immunity | IEC 61000-4-3 |
| EFT/B Immunity | EFT: IEC 61000-4-4 |
| Surge Immunity | Surge: IEC 61000-4-5 |
| Conducted RF Immunity | IEC 61000-4-6 |
Ethernet
| Specification | Rating |
| Connector | RJ45 |
| Conductors | CAT5 STP/UTP |
| ARP connections | Max 20 |
| TCP connections | Max 20 |
| CIP connections | Max 10 |
| Communication rate | 10/100Mbps |
| Duplex mode | Full/Half |
| Auto-MDIX support | Yes |
Serial Port (RS485)
| Specification | Rating |
| RS485 Connector | 4-way terminal |
| RS485 Conductor | 24 – 18 AWG |
| BAUD | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 |
| Parity | None, Even, Odd |
| Data Bits | 8 |
| Stop Bits | 1 |
| Error detection | CRC |
| Transparent mode mapping | Max 20 routes |
| Logix Tag mode mapping | Max 20 routes |
| Reactive Tag Mode Message Support | PLC-5 Typed Read, PLC-5 Typed Write, SLC Typed Read, SLC Typed Write |
| Scheduled Tag Mode Message Support | PLC-5 Typed Read, PLC-5 Typed Write, SLC Typed Read, SLC Typed Write |
Certifications
| Specification | Rating |
| CE Mark | ![]() |
| RCM | ![]() |
|
UL Listed FILE: E494895 |
CLASS 1, DIV 2, GROUPS A, B, C, D
|
| ODVA Conformance | ![]() |
| RoHS3 Compliant | ![]() |
| UKCA | ![]() |
Dimensions

Downloads
Documents
Examples
EDS Files
Firmware
FAQ
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