Description
Allen‑Bradley 1794-ACN15 – FLEX I/O ControlNet Communication Adapter Module
Product Overview
The 1794-ACN15 is a high-performance ControlNet communication adapter module manufactured by Allen‑Bradley (Rockwell Automation), serving as the core network interface for the 1794 FLEX I/O series. This adapter enables seamless high-speed data exchange between FLEX I/O racks and ControlNet industrial network controllers, realizing remote signal acquisition, real-time data transmission and system linkage control. It integrates a built-in power conversion circuit to supply stable power for backplane I/O modules, solving unstable communication and power supply matching issues in distributed automation systems. Featuring robust industrial EMC performance, flexible I/O expansion capacity and long-term operational stability, the Allen‑Bradley 1794-ACN15 provides reliable network communication guarantee for discrete and process industrial automation projects.
Technical Specifications
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Brand: Allen‑Bradley (Rockwell Automation)
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Model:1794-ACN15
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Warranty: One Year
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Condition: 100% New & Original
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Product Type: ControlNet Communication Adapter Module for FLEX I/O
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Communication Protocol: ControlNet V1.5 industrial real-time communication protocol
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Input Supply Voltage: 19.2–31.2 VDC (nominal 24 VDC industrial power)
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Input Current: 400 mA maximum input current
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Backplane Output: 5 VDC / 640 mA power supply for FLEX I/O backplane modules
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I/O Expansion Capacity: Supports up to 8 local FLEX I/O modules per rack
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Signal Capacity: Covers 256 digital I/O points or 64 analog input / 32 analog output points in mixed configuration
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Isolation Performance: Basic insulation design, 850 VDC isolation test for 1 second, effective anti-surge protection
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Environmental Immunity: Compliant with IEC 61000-4-3 RF anti-interference standard, adapting to complex electromagnetic industrial sites
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Operating Temperature:0°C to +55°C, suitable for standard industrial control cabinet environments
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Mounting Method: Standard DIN rail and panel mounting, easy installation and maintenance
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Diagnostic Design: Onboard LED status indicators for network, power and fault status visualization
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Operational Reliability: Supports 7×24-hour continuous network communication and distributed I/O control operation
Application Scenarios
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Factory Discrete Automation: The 1794-ACN15 adapter is widely deployed in automated production lines, packaging machinery and assembly workshop control systems. It connects distributed FLEX I/O racks to the ControlNet main network, realizing unified collection of on-site switch signals, sensor data and equipment status feedback, ensuring synchronous and efficient operation of production line logic control.
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Process Industry Distributed Control: Applied in water treatment, metallurgy, building materials and light industry process control systems. The Allen‑Bradley 1794-ACN15 undertakes long-distance transmission of analog process parameters and discrete interlock signals, stabilizing network communication quality of distributed I/O nodes and improving the overall integration and control accuracy of the automation system.
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Intelligent Equipment Renovation & Expansion: Ideal for upgrading and expanding legacy Rockwell automation systems. It perfectly matches classic ControlNet architecture and FLEX I/O hardware, enabling stable networking and functional expansion of old equipment, effectively reducing renovation costs while maintaining system compatibility and operational stability.
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