Allen Bradley 1394C-SJT22-T-RL Product Specification
1. Product Overview
The Allen Bradley 1394C-SJT22-T-RL is a high-speed servo communication module designed for Rockwell Automation’s Allen Bradley Ultra3000 and Ultra5000 servo drive systems. As a critical connectivity component in motion control architectures, it enables real-time data exchange between Allen Bradley ControlLogix PLCs and servo drives via the SERCOS III open motion network. Widely applied in CNC machining, packaging machinery, material handling, and robotic systems, this module ensures precise synchronization of multi-axis motion, supporting high-speed and high-accuracy industrial automation operations.
Compliant with international standards including IEC 61131-2 and UL 508C, the 1394C-SJT22-T-RL features redundant communication paths, robust anti-interference design, and seamless integration with Rockwell’s Logix control platform. It maintains stable performance in harsh industrial environments with electromagnetic noise, temperature fluctuations, and vibration, meeting the stringent reliability requirements of precision motion control systems.
2. Technical Parameters & Specifications
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Category
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Details
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Product Model
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Allen Bradley 1394C-SJT22-T-RL
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Product Type
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SERCOS III Servo Communication Module
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Compatible Systems
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Allen Bradley Ultra3000/Ultra5000 Servo Drives; ControlLogix PLCs
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Communication Protocol
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SERCOS III (IEC 61491); Backplane: ControlLogix Local Bus
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Data Transfer Rate
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Up to 100 Mbps (SERCOS III); Cycle Time: 125 μs–10 ms
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Supported Axes
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Up to 32 Servo Axes per Module
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2×RJ45 (SERCOS III, Redundant); 1×Status LED Indicator
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Power Supply
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From ControlLogix Backplane: 5 V DC ±5%; Power Consumption: ≤10 W
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Isolation
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Channel-to-Backplane: 500 V DC (Galvanic Isolation)
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Environmental Ratings
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Operating Temp: 0°C–60°C; Humidity: 5%–95% (Non-Condensing); Vibration: ≤2 g
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Certifications
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IEC 61131-2; UL 508C; CE; RoHS; CSA C22.2
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3. Key Features
3.1 High-Speed & Deterministic Communication
With a 100 Mbps SERCOS III data transfer rate and cycle time as low as 125 μs, the module ensures real-time synchronization of multi-axis motion. The deterministic communication mechanism guarantees consistent data delays, enabling precise coordination of robotic arms and CNC axes with positional accuracy up to ±0.001 mm.
3.2 Redundant & Reliable Connectivity
Equipped with dual redundant SERCOS III ports, the module eliminates single points of failure in communication links. Automatic failover (≤1 ms) ensures uninterrupted motion control, critical for high-throughput applications like packaging lines and continuous machining processes.
3.3 Seamless Logix Platform Integration
Optimized for Allen Bradley’s ControlLogix PLCs, the module integrates seamlessly via the ControlLogix local bus. It is fully configurable using Rockwell’s Studio 5000 Logix Designer software, enabling unified programming of PLC logic and motion control strategies without additional software tools.
3.4 Robust Industrial Design
The module features 500 V DC galvanic isolation and enhanced EMC performance, resisting interference from industrial electrical noise and voltage surges. Its rugged metal housing and wide operating temperature range (0°C–60°C) ensure reliable operation in harsh manufacturing environments like automotive assembly plants and metal processing facilities.
4. Related Allen Bradley Products
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Allen Bradley 1394C-SJT10-T-RL: Entry-level SERCOS III module, supporting up to 16 axes for small-scale motion control systems.
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Allen Bradley Ultra5000 Servo Drive: High-performance servo drive, paired with 1394C-SJT22-T-RL for precise axis control.
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Allen Bradley ControlLogix 5570 PLC: Core controller, integrating the communication module to execute complex motion and logic control.
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Allen Bradley 1756-M08SE I/O Module: Digital I/O module, expanding control signals for systems using 1394C-SJT22-T-RL.
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Allen Bradley Studio 5000 Logix Designer: Integrated development environment, enabling configuration and programming of the communication module and associated systems.
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