EtherCAT Master 4 (EM4)

The KSMC-ECAT EM4 is a powerful, PC-based EtherCAT Master Motion Controller built on an industrial x86 platform. Designed for real-time, high-precision control across various industrial applications, the EM4 transforms your Mini-ITX form factor PC into a full-fledged EtherCAT master — with no extra hardware required. The Class-A EtherCAT master controller supports Distributed Clocks, Cyclic PDOs, Cable Redundancy, and more. Combined with a proven motion engine used in over 50,000 Sodick machines, the EM4 delivers robust, synchronized motion and automation capabilities for advanced CNC, robotics, and industrial automation systems.

Highlights

  • PC-Based Architecture (x86-64 Mini-ITX/Industrial PC)
  • Integrated EtherCAT Master & Motion Controller (EE-Master)
  • No Additional Master Hardware Required
  • RTOS-Based Real-Time Execution

Motion Features

  • Control up to 32 motors and 8 interpolated axes 
  • 4 coordinate systems with individual motion planners
  • Support for Jog, Spline, CW/CCW, PVT, Handwheel & Rapid modes
  • 500μs segment time and 250μs PDO cycle time with 32 motors
  • Advanced control algorithms: PID, Notch Filter, Disturbance Observer, Adaptive Control
  • Sequential & Periodic PLC for customizable logic
  • Macro Variables, User-Defined I/O, Data Gathering & Plotting

Software Options

  • NC Controller with RS274D / ISO6980 NC Code Execution (MaCH Module)
  • IEC 61131-3 PLC Support: IL, ST, LD, FBD, and SFC
  • SmART HMI Development Suite: Design (SmART-B), Runtime (SmART-I), Multilingual (SmART-L)
  • RDI-L Tool for Real-Time Tuning, Debugging, and Monitoring
  • EtherCAT Network Configurator with ESI/ENI support
  • SCADA/OPC UA interface

Applications

  • Perfect for CNC, 3D printing, robotics, machining centers, and complex automation systems needing reliable, deterministic motion control with high-speed EtherCAT networking. 

Built to Perform. Designed to Scale. Trusted by Industry Leaders!