Overview
The Allen-Bradley 1734-ADNX is a POINT I/O DeviceNet adaptor with subnet expansion that extends distributed I/O systems across multiple segments. It serves as both a scanner on the Subnet and a slave device on the primary DeviceNet network, enabling seamless communication between POINT I/O modules and Rockwell PLCs/controllers.
Key Features
- Dual-Network Operation: Simultaneously resides on Subnet and primary DeviceNet network
- High Module Capacity: Supports up to 63 POINT I/O modules per adapter
- Compact Design: DIN rail mount with no enclosure required
- Auto Start Mode: Simplifies installation and automatic catalog replacement
- LED Status Indicators: Monitor network and module status at a glance
- Flexible Addressing: Node address 0–99 with configurable range (0–63 via front panel, 64–99 via RSNetWorx software)
Technical Specifications
- Input Voltage: 24 VDC
- Field Side Power: 400 mA nominal
- Inrush Current: 6 A maximum
- POINTBus Current: 1000 mA (1 A)
- Mounting: DIN Rail (35 mm)
- Operating Temperature Range: −20 to +55 °C
- Enclosure Type: Open-style (no cabinet required)
- Communication Protocol: DeviceNet, Subnet
- Module Capacity: Up to 63 I/O modules
- Certifications: CE, UL/cUL, C-TICK, GOST, KC, MARINE
Typical Applications
- Distributed I/O systems in manufacturing and process automation
- Machine control with remote I/O segments across a facility
- Factory automation requiring scalable, modular I/O architecture
- DeviceNet-based control networks with multiple I/O branches
- Expansion of existing POINT I/O systems without controller replacement
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and SLC 5/05 controllers with DeviceNet scanning capability
- POINT I/O modules (1734-Axxx series) on Subnet branch
- DeviceNet masters and primary network adapters (1734-ADN)
- RSNetWorx for DeviceNet configuration software
- Studio 5000 and legacy RS-Logix programming environments
Replaces / Drop-In Replacement For
- 1734-ADN (primary network adapter—verify branching requirements before substitution)
- Legacy Ethernet/IP gateway adapters when DeviceNet infrastructure exists
Works With
- DeviceNet protocol (CAN-based industrial network)
- POINT I/O Subnet (proprietary multi-drop bus for distributed modules)
- EDS (Electronic Data Sheet) files for RSNetWorx configuration
- I/O mapping and explicit messaging connections
- Rockwell Automation distributed I/O framework
