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Product Introduction
The Allen-Bradley 1794-ACN15 Flex I/O ControlNet Adapter Module is a robust communication interface designed to integrate Flex I/O modules into a ControlNet network. It acts as a bridge between a controller and distributed I/O, providing reliable and high-speed communication for industrial automation systems.
This adapter supports up to 8 Flex I/O modules, with a FlexBus output current of 640 mA to power connected modules. Its design includes a built-in power supply capable of handling input voltages from 19.2 to 31.2 VDC and an inrush current of 23 A for 2 ms. The module is capable of a maximum power dissipation of 4.6 W at 19.2 VDC. With a ControlNet communication rate of 5 Mbps and an isolation voltage of 850 VDC, it ensures both performance and safety in industrial environments.
Compact and lightweight, with operating temperatures from 0 to 55 °C and storage temperatures down to -40 °C, the 1794-ACN15 is suitable for a wide range of applications where distributed I/O reliability, scalability, and fast network communication are required.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Flex I/O ControlNet Adapter Module |
| Model Number | 1794-ACN15 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Network | ControlNet |
| Communication Port | One ControlNet port |
| Communication Rate | 5 Mbps |
| Flex I/O Modules Supported | Up to 8 |
| FlexBus Output Current | 640 mA maximum |
| Current Draw | 450 mA maximum |
| Power Dissipation | 4.6 W maximum at 19.2 VDC |
| Input Voltage Range | 19.2–31.2 VDC |
| Isolation Voltage | 850 VDC |
| Inrush Current | 23 A for 2 ms |
| Operating Temperature | 0 to 55 °C (32 to 131 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Mounting Type | DIN Rail / Panel Mount |
| Dimensions | 94 x 87.4 x 92 mm |
| Weight | 0.22 kg |
Applications
• Distributed I/O systems – Connects multiple Flex I/O modules to ControlNet networks for centralized monitoring and control
• Factory automation – Integrates remote I/O modules for assembly lines, packaging, and material handling systems
• Process control environments – Provides high-speed communication for real-time monitoring and control of industrial processes
• OEM and machine-building applications – Supports modular and scalable architectures for machinery control
• Remote diagnostics and monitoring – Allows operators to monitor distributed I/O modules in real time over ControlNet
Advantages
• Supports up to 8 I/O modules – Provides scalable system expansion while minimizing network complexity
• High-speed communication – 5 Mbps ControlNet interface ensures fast and reliable data transfer
• Built-in power supply – Powers Flex I/O modules with up to 640 mA FlexBus output current
• Electrical isolation – 850 VDC isolation protects the network and connected devices
• Compact and lightweight design – Easy to install in panels or DIN rail setups
• Reliable industrial operation – Designed for stable performance within operating temperatures of 0–55 °C
