Allen-Bradley 1769-ADN DeviceNet Adaptor Module – CompactLogix 1769 Compact I/O Series
When a DeviceNet scanner loses its adaptor link, the consequences are immediate and measurable: distributed I/O nodes go silent, the PLC program faults on missing input data, and the production line halts while maintenance teams scramble to identify whether the fault lies in the network, the cabling, or the module itself. In process-critical environments — bottling lines, automotive assembly cells, material handling conveyors — every unplanned minute of downtime carries a direct cost. The 1769-ADN eliminates that single point of failure by providing a dedicated, hardware-level DeviceNet adaptor interface that the CompactLogix backplane can rely on without software workarounds.
Within the 1769 Compact I/O family, the 1769-ADN occupies a specific and non-substitutable role: it is the only module that allows a CompactLogix controller to participate as a slave node on a DeviceNet network, receiving scanner-initiated I/O polling from an upstream master such as a 1756-DNB or third-party DeviceNet scanner. This positions it as the preferred integration bridge in mixed-vendor automation architectures where legacy DeviceNet infrastructure must coexist with modern Logix-based control platforms — a topology that remains widespread across North American and European discrete manufacturing facilities.
Technical Specifications
Electrical
- Supply Voltage: 24V DC (from DeviceNet network power)
- Current Draw from DeviceNet: 40 mA @ 24V DC
- Backplane Current Draw: 100 mA @ 5V DC
- I/O Data Size: Up to 128 bytes input / 128 bytes output (configurable)
- DeviceNet Node Address: 0–63 (software or hardware configurable)
- Baud Rate: 125 kbps / 250 kbps / 500 kbps (auto-detect supported)
Mechanical
- Form Factor: 1769 Compact I/O single-slot module
- Mounting: DIN rail or panel mount via 1769 bus system
- Weight: Approx. 300 g
- Connector: 5-pin open-style DeviceNet connector (CAN_H, CAN_L, V+, V−, Shield)
Environmental
- Operating Temperature: 0°C to +60°C
- Storage Temperature: −40°C to +85°C
- Relative Humidity: 5%–95% non-condensing
- Vibration: IEC 68-2-6 compliant
- Shock: IEC 68-2-27 compliant
Certifications & Standards
- UL Listed, CE Marked, C-Tick
- DeviceNet conformance tested per ODVA specification
- Meets IEC 61158 fieldbus standard for DeviceNet (CAN-based)
Key Features & Benefits
- ODVA-Conformant DeviceNet Slave Interface — Guarantees interoperability with any ODVA-certified DeviceNet master scanner, eliminating vendor lock-in and reducing integration risk in multi-vendor plant environments.
- Up to 256 Bytes Bidirectional I/O Throughput — Supports 128 bytes in each direction per poll cycle, sufficient to map the full I/O footprint of a CompactLogix rack to a DeviceNet master without data truncation.
- Auto-Baud Detection — Automatically matches network baud rate (125/250/500 kbps) on power-up, reducing commissioning time by eliminating manual DIP switch configuration for baud rate selection.
- Backplane-Native Integration — Communicates directly over the 1769 serial backplane bus, adding zero latency overhead compared to gateway-based DeviceNet adaptor solutions.
- Node Address Configurable via RSNetWorx or Hardware Switches — Supports both software-based node assignment through RSNetWorx for DeviceNet and physical rotary switch setting, meeting IEC 62443 change-management requirements for documented network topology.
- Compact Single-Slot Footprint — Occupies only one 1769 slot, preserving rack space for additional I/O modules in space-constrained control panels.
Industry & Equipment Applications
- Automotive Assembly — Body-in-white welding cells where a CompactLogix controls weld timers and a DeviceNet master scanner polls I/O status from multiple robot interface panels simultaneously.
- Food & Beverage Packaging — High-speed bottling and canning lines using DeviceNet-networked photoelectric sensors and proximity switches, with the 1769-ADN bridging the sensor network to the CompactLogix recipe management system.
- Material Handling & Conveyor Systems — Sortation conveyors where distributed DeviceNet I/O nodes report divert gate positions and jam sensors back to a central CompactLogix controller via the 1769-ADN adaptor.
- Water & Wastewater Treatment — Pump station control panels integrating legacy DeviceNet valve actuators with a CompactLogix-based SCADA interface, avoiding costly actuator replacement.
- Semiconductor & Electronics Manufacturing — Cleanroom automation where DeviceNet-connected SMEMA-compliant board handlers communicate board-ready signals to a CompactLogix process controller.
- Oil & Gas Upstream Equipment — Wellhead control panels using DeviceNet for intrinsically safe I/O marshalling, with the 1769-ADN providing the adaptor node that a remote DeviceNet master polls for valve and pressure status.
System Integration & Compatible Parts
Upstream DeviceNet Scanners (Masters):
- 1756-DNB — ControlLogix DeviceNet Scanner (master side)
- 1771-SDN — PLC-5 DeviceNet Scanner Module
- Third-party ODVA-certified DeviceNet masters (Siemens, Omron, Beckhoff)
Compatible CompactLogix Controllers:
- 1769-L23E-QB1B, 1769-L23-QBFC1B, 1769-L32E, 1769-L35E, 1769-L43, 1769-L45
Companion 1769 I/O Modules:
- 1769-IQ16 (16-pt DC Input), 1769-OB16 (16-pt DC Output), 1769-IF4 (Analog Input), 1769-OF2 (Analog Output)
Equivalent / Replacement Consideration:
- No direct drop-in replacement exists within the 1769 family. Migration to EtherNet/IP (1769-AENTR) requires DeviceNet master reconfiguration and is only viable when the upstream scanner supports dual-protocol operation. The 1769-ADN remains the correct solution for any installation where the DeviceNet master cannot be replaced.
Our Quality Assurance Process
- Visual & Physical Inspection — Each unit is examined for connector pin integrity, PCB condition, label legibility, and absence of physical damage before acceptance into inventory.
- Functional Power-On Test — Module is powered via a 1769 test rack; backplane communication, DeviceNet LED status indicators (MS/NS), and node address switches are verified against factory specifications.
- Network Communication Verification — Where test equipment permits, the module is enrolled as a slave node on a live DeviceNet segment and polled by a 1756-DNB scanner to confirm I/O data exchange at all three baud rates.
- Documentation & Packaging — Passed units are assigned a QC reference number. Available documentation includes: test report, original Rockwell Automation datasheet, certificate of conformity, and packing list with serial number record.
How to Order
- Submit Your Inquiry — Send your part number (1769-ADN), required quantity, and any firmware or revision requirements via the contact form or email [email protected].
- Receive Quotation — Our technical team will respond within 24 hours with availability, lead time, and a formal quotation including shipping options to your destination.
- Confirm & Ship — Upon order confirmation and payment, the module is prepared with full documentation and dispatched with tracking. Express and freight options available for urgent requirements.
Why Choose Konmask.com?
- Specialist Focus on Rockwell Automation & Allen-Bradley — Our inventory and technical knowledge are concentrated on the CompactLogix, ControlLogix, and PLC-5 ecosystems, not spread thin across unrelated product categories.
- Documented QC on Every Unit — Every module shipped carries a traceable QC reference, not a generic “tested and working” label.
- Technical Pre-Sales Support — Our team can advise on compatibility, firmware revision requirements, and integration constraints before you commit to a purchase.
- Responsive Quotation Turnaround — 24-hour response commitment on all inquiries, with same-day response available for urgent production-down situations.
- Global Export Experience — Experienced in export documentation, EAR99 classification, and shipping to manufacturing facilities across Southeast Asia, Europe, and the Middle East.
Frequently Asked Questions
Q: Can the Allen-Bradley 1769-ADN be used as a DeviceNet master scanner, or only as a slave adaptor?
A: The 1769-ADN functions exclusively as a DeviceNet slave adaptor (Group 2 Only Slave). It cannot initiate polling or act as a master scanner. If you require a CompactLogix system to act as a DeviceNet master, the correct module is the 1756-DNB in a ControlLogix chassis, or a third-party DeviceNet scanner connected via the 1769 backplane bridge.
Q: What is the maximum I/O data size supported by the 1769-ADN DeviceNet adaptor module?
A: The 1769-ADN supports up to 128 bytes of input data and 128 bytes of output data per DeviceNet poll cycle, for a total bidirectional throughput of 256 bytes. This is sufficient to map the complete I/O complement of a fully populated 1769 Compact I/O rack to the DeviceNet master.
Q: Is the Allen-Bradley 1769-ADN compatible with third-party DeviceNet scanners from Siemens or Omron?
A: Yes, provided the third-party scanner is ODVA-certified and supports Group 2 Only Slave devices. The 1769-ADN is conformance-tested to the ODVA DeviceNet specification, which defines the interoperability standard. Configuration is performed via the scanner’s network configuration tool using the 1769-ADN EDS file, available from Rockwell Automation’s Product Compatibility and Download Center (PCDC).
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