Allen-Bradley 1769-AENTR CompactLogix EtherNet/IP Adapter Module
The Allen-Bradley 1769-AENTR, also cataloged as the 1769-AENTR EtherNet/IP Communication Adapter Module, operates as a dedicated hardware component for distributed I/O data transfer and backplane bridging within CompactLogix control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-AENTR |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.31 lbs (0.14 kg) |
| Dimensions | Standard CompactLogix 1769 Module Form Factor |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 24 VDC (500 mA current draw) |
| Communication Rate | 10/100 Mbps (Full/Half Duplex) |
| Port Count | 2 x RJ45 Copper Ports (Dual-Port EtherNet/IP) |
| Maximum I/O Capacity | Up to 30 1769 I/O Modules (3 Banks max) |
| Topology Support | Device Level Ring (DLR), Star, Linear |
Backplane Bus Communication Velocity and EtherNet/IP Performance
The 1769-AENTR module facilitates high-speed EtherNet/IP packet transfer directly to the local CompactLogix 1769 backplane bus. Utilizing dual RJ45 interfaces with an integrated embedded switch, the adapter supports Device Level Ring (DLR) network topologies to eliminate single-point network failures without external switching hardware. It supports deterministic implicit (I/O) messaging and explicit messaging across up to 30 CompactLogix I/O modules distributed across a maximum of three expansion banks. Firmware compatibility validation ensures synchronized backplane execution and seamless packet processing between controller tasks and remote field sensors.
Frequently Asked Questions
Q: How many 1769 I/O modules can be connected to a single 1769-AENTR adapter module?
A: A single 1769-AENTR adapter supports up to 30 local 1769 Compact I/O modules across a maximum of three expansion banks. Additional banks require 1769 expansion cables and dedicated power supplies.
Q: What network topologies are natively supported by the dual Ethernet ports on the 1769-AENTR?
A: The dual 10/100 Mbps Ethernet ports contain an integrated Ethernet switch that natively supports Device Level Ring (DLR), linear, and traditional star network topologies.
Q: What is the input voltage requirement and current draw for the 1769-AENTR module?
A: The module requires an incoming nominal supply voltage of 24 VDC and draws a maximum current of 500 mA from the connected power supply.
Field Installation Guidelines
- Mount the 1769-AENTR on a grounded DIN rail or via direct panel mounting using M4 screws. Ensure the DIN rail is connected to functional earth (FE) with low impedance ground braid.
- Maintain a minimum clearance of 50 mm (2 inches) on all sides of the module chassis for adequate convection cooling and airflow dissipation.
- Terminate all Ethernet cables using shielded twisted-pair (STP) Cat 5e or Cat 6 cabling with industrial RJ45 connectors. Connect cable shields directly to the chassis ground terminal.
- Verify proper end-cap installation (1769-ECR or 1769-ECL) on the final 1769 expansion rack segment to ensure circuit termination across the backplane bus.
- Set the IP address using the rotary switches located on the front panel or assign address parameters dynamically via BOOTP/DHCP software tools over the network.
Allen-Bradley 1769-AENTR CompactLogix EtherNet/IP Adapter Module
Allen-Bradley 1769-AENTR CompactLogix EtherNet/IP Adapter Module
The Allen-Bradley 1769-AENTR, also cataloged as the 1769-AENTR EtherNet/IP Communication Adapter Module, operates as a dedicated hardware component for distributed I/O data transfer and backplane bridging within CompactLogix control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-AENTR |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.31 lbs (0.14 kg) |
| Dimensions | Standard CompactLogix 1769 Module Form Factor |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 24 VDC (500 mA current draw) |
| Communication Rate | 10/100 Mbps (Full/Half Duplex) |
| Port Count | 2 x RJ45 Copper Ports (Dual-Port EtherNet/IP) |
| Maximum I/O Capacity | Up to 30 1769 I/O Modules (3 Banks max) |
| Topology Support | Device Level Ring (DLR), Star, Linear |
Backplane Bus Communication Velocity and EtherNet/IP Performance
The 1769-AENTR module facilitates high-speed EtherNet/IP packet transfer directly to the local CompactLogix 1769 backplane bus. Utilizing dual RJ45 interfaces with an integrated embedded switch, the adapter supports Device Level Ring (DLR) network topologies to eliminate single-point network failures without external switching hardware. It supports deterministic implicit (I/O) messaging and explicit messaging across up to 30 CompactLogix I/O modules distributed across a maximum of three expansion banks. Firmware compatibility validation ensures synchronized backplane execution and seamless packet processing between controller tasks and remote field sensors.
Frequently Asked Questions
Q: How many 1769 I/O modules can be connected to a single 1769-AENTR adapter module?
A: A single 1769-AENTR adapter supports up to 30 local 1769 Compact I/O modules across a maximum of three expansion banks. Additional banks require 1769 expansion cables and dedicated power supplies.
Q: What network topologies are natively supported by the dual Ethernet ports on the 1769-AENTR?
A: The dual 10/100 Mbps Ethernet ports contain an integrated Ethernet switch that natively supports Device Level Ring (DLR), linear, and traditional star network topologies.
Q: What is the input voltage requirement and current draw for the 1769-AENTR module?
A: The module requires an incoming nominal supply voltage of 24 VDC and draws a maximum current of 500 mA from the connected power supply.
Field Installation Guidelines
- Mount the 1769-AENTR on a grounded DIN rail or via direct panel mounting using M4 screws. Ensure the DIN rail is connected to functional earth (FE) with low impedance ground braid.
- Maintain a minimum clearance of 50 mm (2 inches) on all sides of the module chassis for adequate convection cooling and airflow dissipation.
- Terminate all Ethernet cables using shielded twisted-pair (STP) Cat 5e or Cat 6 cabling with industrial RJ45 connectors. Connect cable shields directly to the chassis ground terminal.
- Verify proper end-cap installation (1769-ECR or 1769-ECL) on the final 1769 expansion rack segment to ensure circuit termination across the backplane bus.
- Set the IP address using the rotary switches located on the front panel or assign address parameters dynamically via BOOTP/DHCP software tools over the network.
