Description
Description
The Allen-Bradley 1769-AENTR is a high-performance communication adapter designed to integrate 1769 Compact I/O modules into an EtherNet/IP network as distributed (remote) I/O. By facilitating remote I/O placement, this module enables closer proximity to field sensors and actuators, significantly reducing wiring costs and system complexity. It serves as a bridge between the local 1769 I/O backplane and a centralized Logix5000 controller, such as ControlLogix or CompactLogix systems.
Features
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Embedded Switch: Features two RJ45 ports for flexible network connectivity.
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Network Redundancy: Supports Device Level Ring (DLR) topology, ensuring continuous communication if a single cable segment fails.
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Topology Flexibility: Compatible with linear (daisy-chain) and star network configurations.
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Scalability: Supports up to 30 I/O modules across three banks using expansion cables.
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Security: Includes CIP Security support to enhance data protection within the industrial network.
Applications
This adapter is ideal for distributed control architectures where I/O points are spread across a facility. Common applications include machine-level control, conveyor systems, packaging lines, and remote monitoring stations where minimizing long-run cabling is critical for system performance and maintenance.
Technical Specifications
| Model |
1769-AENTR |
| Brand |
Allen-Bradley |
| Product Line |
CompactLogix / Compact I/O |
| Communication |
EtherNet/IP (10/100 Mbps) |
| Ports |
2 x RJ45 (Embedded Switch) |
| Backplane Current |
500 mA @ 5V DC |
| Isolation Voltage |
50V (Continuous) |
| Operating Temperature |
0 to 60 degC (32 to 140 degF) |
Installation Guidelines
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Power Down: Always disconnect power from the I/O bank before installing or removing the adapter to prevent electrical damage.
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Mounting: Ensure the module is securely seated on the DIN rail or panel mount and locked into the backplane connector.
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Grounding: Use appropriate grounding practices for the chassis to minimize EMI interference.
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Cable Routing: Use shielded Ethernet cabling for industrial environments; keep communication cables separated from high-voltage power lines to prevent signal noise.
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ESD Handling: Use standard electrostatic discharge (ESD) precautions when handling the module to protect internal components.
FAQ
Q: Can I use this module with any CompactLogix controller?
A: The 1769-AENTR is designed for use with 1769 Compact I/O modules. It is compatible with any Logix5000 controller that supports EtherNet/IP communication.
Q: What is the maximum number of modules supported?
A: You can connect up to 30 1769 Compact I/O modules across a maximum of three banks using expansion cables.
Q: Does this module support network redundancy?
A: Yes, the 1769-AENTR supports Device Level Ring (DLR) topology, which provides a redundant path for network traffic.
