Omron NX502-1300 NX5 CPU Unit

The Omron NX502-1300 is a high-performance programmable controller CPU unit from the NX5 series, designed for advanced machine automation. This controller combines powerful logic processing with integrated motion control capabilities, supporting up to 16 real axes and 32 virtual axes. It is ideal for complex applications requiring coordinated motion, high-speed I/O, and seamless integration with EtherCAT networks.

Technical Specifications

The NX502-1300 is built on a quad-core processor architecture with a primary task cycle time of 0.250 ms. Program memory capacity is 80 MB, with 4 MB of retain attribute variable memory and 256 MB of non‑retain attribute variable memory. The unit supports up to 256 total axes (including virtual) and up to 512 tags per EtherNet/IP unit, with a maximum of 4 EtherNet/IP units per controller. Communication interfaces include Ethernet (Gigabit, 1 Gbps) for EtherCAT master functionality and standard TCP/IP networking, plus RS‑232 and RS‑422/485 serial ports. The controller operates on a 24 V DC power supply and supports DIN rail mounting. Operating temperature range is 0°C to 55°C. The unit is expandable with up to 63 NX series I/O modules via the NX bus.

Key Features

• Quad-core CPU with 0.250 ms primary task cycle time

• 80 MB program memory, 256 MB non‑retain variable memory

• EtherCAT master for high-speed motion and I/O control

• Supports 16 real axes / 32 virtual axes

• Gigabit Ethernet port (1 Gbps) for IIoT connectivity

• RS‑232 and RS‑422/485 serial interfaces

• Built‑in real‑time clock and micro SD card slot

• Compatible with Omron Sysmac Studio programming environment

• Integrated safety functionality via NX‑series safety modules

Motion Control Capabilities

The NX502-1300 provides integrated motion control through EtherCAT, supporting synchronized positioning, electronic camming, gearing, and interpolation. With support for 16 real axes, the controller can handle demanding multi‑axis applications such as packaging machines, printing presses, and handling systems. The motion control cycle can be synchronized to the primary task cycle as low as 0.250 ms, ensuring precise coordination between logic and motion.

Programming Environment

The controller is programmed using Omron Sysmac Studio, which provides a unified environment for logic, motion, safety, and HMI development. Supported languages include ladder diagram (LD), structured text (ST), sequential function chart (SFC), and function block diagram (FBD). The software includes advanced debugging tools, real‑time trace, and simulation capabilities. The NX502-1300 supports multi‑tasking with up to 32 tasks, allowing separation of control loops, communication, and diagnostics.

Expansion and I/O

The NX502-1300 acts as the master for NX series I/O modules, which attach directly to the CPU via the NX bus. Up to 63 modules can be connected, including digital I/O, analog I/O, temperature measurement, and safety modules. For distributed I/O, the controller can also act as an EtherCAT master, connecting to remote I/O stations, servo drives, and other EtherCAT slaves.

Communication and Networking

The built‑in Ethernet port supports EtherCAT (for motion and I/O), EtherNet/IP (for communication with PLCs and HMIs), and standard TCP/IP protocols including Modbus TCP, FTP, and OPC UA. The controller also features two serial ports (RS‑232 and RS‑422/485) supporting Host Link, Modbus RTU, and No Protocol communication. The USB port is available for programming and data logging. An integrated web server allows remote monitoring and diagnostics via standard web browsers.

Applications

Typical applications for the NX502-1300 include high‑speed packaging machinery (vertical form fill seal, cartoners), pick‑and‑place systems, printing and converting equipment, and CNC machine tools. Its real‑time capabilities and multi‑axis motion control make it suitable for demanding automation tasks in automotive, electronics, food and beverage, and pharmaceutical industries.

Environmental and Certifications

The NX502-1300 complies with CE, UL, and RoHS standards. It is designed for pollution degree 2 environments and is rated IP20 for installation in protected control cabinets. Operating temperature is 0‑55°C, storage temperature -25‑70°C, with humidity tolerance of 10‑95% non‑condensing.

Conclusion

The Omron NX502-1300 NX5 CPU unit delivers powerful logic and motion control in a compact form factor. Its high‑speed processing, extensive I/O expansion, and integrated EtherCAT make it a versatile choice for modern machine automation.