Product Overview

The Allen-Bradley 1738-ACNR ArmorPoint ControlNet Network Adapter is designed to provide reliable communication between distributed I/O modules and ControlNet-based control systems. It ensures stable and synchronized data exchange for industrial automation applications.

Its rugged design allows direct installation in harsh environments, reducing the need for protective enclosures. It is commonly used in process industries where predictable real-time communication is essential for system performance.

Technical Specifications

Parameter	Specification
Model	1738-ACNR
Product Type	ControlNet Network Adapter
Communication Protocol	ControlNet
Supply Voltage	24V DC
Installation Type	On-machine mounting
Application	Distributed I/O networking
Environmental Design	Industrial rugged construction
Network Function	Multi-node I/O communication gateway
Dimensions	112 × 72 × 65 mm
Weight	0.36 kg

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Frequently Selected Companion Models

Model	Product Name
Allen-Bradley 1738-IB8M	ArmorPoint Digital Input Module
Allen-Bradley 1738-OB8M	ArmorPoint Digital Output Module
Allen-Bradley 1738-IE2C	Analog Input Module
Allen-Bradley 1738-OW4M	Relay Output Module

Where It Fits in Industrial Networks

• ControlNet communication layer in Allen-Bradley distributed I/O systems

• On-machine ArmorPoint I/O architectures requiring deterministic network control

• Industrial automation networks connecting remote I/O blocks to PLC controllers

• Process control systems in oil & gas, power generation, and heavy industry

• High-reliability real-time data exchange between field I/O and control platforms

Key Strengths That Stand Out

• Deterministic ControlNet communication ensures stable real-time data transfer

• Rugged on-machine design suitable for harsh industrial environments

• Supports high-density distributed I/O expansion for large systems

• Reliable network synchronization for multi-node control architectures

• Compact structure designed for direct machine mounting without cabinet dependency

Technical FAQs

1. What is the main function of this module?
It connects ArmorPoint I/O modules to a ControlNet industrial network.

2. What type of network does it use?
It operates using the ControlNet deterministic communication protocol.

3. Can it be installed on machines directly?
Yes, it is designed for on-machine mounting in industrial environments.

4. What role does it play in automation systems?
It acts as the communication gateway between PLC controllers and remote I/O modules.

5. Is it suitable for harsh environments?
Yes, it is designed for industrial-grade durability and vibration resistance.

6. Does it support real-time control?
Yes, ControlNet ensures predictable and synchronized communication.

7. What systems is it commonly used with?
It is used in ArmorPoint distributed I/O systems.

8. Can it support multiple I/O modules?
Yes, it is designed for multi-node distributed I/O networks.

9. Is it still widely used today?
It is mainly used in existing ControlNet installations and legacy systems.

10. What is its main advantage in automation?
It provides stable, deterministic communication for critical industrial control.

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Allen Bradley PLC

Allen Bradley 1738-ACNR ArmorPoint ControlNet Network Adapter