1.​Product Overview​

The ​Allen-Bradley 1794-ACNR15 FLEX I/O™ ControlNet Adapter​ enables deterministic, high-speed communication for distributed I/O systems. Designed as the central node for Rockwell’s FLEX platform, this adapter interfaces up to 30 FLEX I/O modules via local backplane with ​ControlNet™ (CNET) connectivity​ at 5Mbps. Its robust metal housing (–40°C to +70°C) features IP20 protection (IP65 with kit) and withstands 5g vibration per IEC 60068-2-6. Supporting ​dual-channel media redundancy, it achieves ≤2ms cycle times for real-time control. Integrated ​network diagnostics​ provide LED status for node health, channel errors, and module faults. Compatible with Studio 5000® for plug-and-play configuration.

2.​Critical Technical Specifications​

​Core performance parameters:

• ​Network Protocol: ControlNet (CIP™) conforming to IEC 61158
• ​Data Rate: 5Mbps with RG-6/U coaxial (BNC connectors)
• ​Node Capacity: 30 FLEX modules per adapter (max. 252 I/O points)
• ​Power Supply: 24V DC ±10% (2.5A max for modules)
• ​Backplane Current: 750mA @ 5V DC (logic), 1.2A @ 24V DC (field)
• ​Synchronization: ±500µs coordinated sampling
• ​Redundancy: Dual ports for trunk-line redundancy (auto-switch <50ms)
• ​Certifications: UL 61010-1, ATEX II 3G, CE, cULus
• ​EMC: EN 61000-6-2/4 (10V/m RF immunity)

​3.Targeted Applications​

​Deterministic distributed control:

• ​Automotive Paint Shops: Synchronized conveyor control across 50+ zones
• ​Packaging Lines: High-speed filling/capping machine coordination
• ​Water Treatment: Plant-wide valve network synchronization
• ​Material Handling: Palletizer PLC-I/O integration with ≤2ms response
• ​Food Processing: Multi-zone cooker temperature control (IP65 washdown kits)
• ​Mining: Reliable data exchange in vibration-intensive crusher controls
• ​Discrete Manufacturing: Multi-robot workcell I/O consolidation

4.​Competitive Advantages​

​Operational superiorities:

• ​Network Resilience: Dual-path redundancy maintains uptime during cable faults
• ​TCO Reduction: Eliminates 20+% cabling costs via distributed topology
• ​Synchronization Precision: ±500µs sampling for motion-critical systems
• ​Scalability: Supports 99 nodes/1,000+ I/O per ControlNet network
• ​Diagnostics Depth: Module-level LED codes identify faults within 3s
• ​Installation Simplicity: Pre-configured EDS files auto-map tags in Studio 5000®
• ​Legacy Integration: Backward-compatible with 1771 I/O via 1794-ASB adapters
• ​Failsafe Operation: Auto-disconnects faulty modules to preserve network integrity

​5.Functional Capabilities​

​Advanced network features:

• ​Real-Time Optimization: Bandwidth reservation for critical I/O (UCMM/COS)
• ​Predictive Maintenance: Tracks node voltage/SNR degradation via Produced Tags
• ​Redundancy Management: Hot-swap adapter replacement with configuration retention
• ​Peer Messaging: Produced/Consumed tags for inter-PLC data exchange
• ​Timed I/O Control: Scheduled output pulses synchronized across 5 racks
• ​Cyber Security: Lockable BNC connectors to prevent unauthorized access
• ​Data Logging: Stores last 10 network faults with timestamps
• ​FLEX Expansion: Cascades to 5 chassis via 1794-ACN15 extension adapters

​

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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