Product Overview

The OMRON NJ301-1100 is a high performance machine automation controller from the NJ3 series, designed to deliver integrated sequence and motion control for small to mid scale machinery. As part of OMRON’s Sysmac automation platform, this CPU unit combines a real time EtherCAT master port, a standard EtherNet/IP port, and a high speed program execution engine into a compact DIN rail mounted package. Engineered for applications requiring up to 8 axes of motion control, the NJ301-1100 provides deterministic control loops with a minimum cycle time of 0.5 ms, making it suitable for packaging machines, pick and place systems, and specialized assembly equipment.

Built around an Intel Atom processor, the NJ301-1100 executes advanced instructions including double precision floating point operations with exceptional speed. It supports multiple IEC 61131 3 programming languages, including Ladder Diagram, Structured Text, and Function Block Diagram, giving programmers flexibility to implement complex algorithms and reusable code modules.

Technical Specifications

Key Features

• Integrated EtherCAT master port supporting up to 192 nodes, enabling synchronized motion control for up to 4 real axes with electronic gearing and camming capabilities.

• Built in EtherNet/IP port for seamless connection to supervisory systems, HMIs, and enterprise networks using standard CIP protocol.

• High speed processing with 0.5 ms minimum cycle time, providing deterministic response for servo positioning, high speed I/O, and precision timing sequences.

• 5 MB program memory and 2.5 MB variable memory accommodate substantial application code and data logging requirements.

• Support for NX series I/O expansion up to 66,560 points, allowing system growth beyond local chassis capacity without replacing the CPU.

• Sysmac Studio integrated development environment provides unified configuration for PLC, motion, safety, drives, and vision in a single software package.

• IEC 61131 3 programming language support delivers engineering flexibility for multi discipline development teams.

• USB programming port and SD card slot facilitate quick program transfers, data logging, and firmware updates.

Applications

The OMRON NJ301-1100 is ideally suited for small scale control applications where high speed motion and sequence control must coexist in a single platform. Typical deployments include pick and place machines requiring electronic cam profiles for synchronized pick heads, packaging machinery with flying knife cutoffs and rotary indexing tables, assembly stations with torque controlled screwdriving, and test equipment demanding precise timing and data capture.

In semiconductor manufacturing, this controller handles wafer handling robots and alignment stages where sub millisecond response is required. For material handling systems, the NJ301-1100 coordinates conveyor zones, diverters, and stackers with fast I/O response. Its compact size and DIN rail mounting also make it suitable for replacing relay networks and legacy PLCs in machine retrofits, offering modern communication capabilities without requiring extensive panel rework.