The KEBA CU313/B-SI/58626/09 is a compact, high-performance industrial controller engineered for demanding automation applications. Part of KEBA's renowned control system family, this device combines real-time processing power with extensive connectivity, providing a flexible and reliable platform for machine and process control. Its robust hardware and comprehensive software support make it an ideal choice for system integrators and OEMs seeking to optimize productivity and reduce engineering effort.
At the heart of the CU313 lies a powerful processor optimized for deterministic real-time operations. The controller runs a hardened real-time operating system, ensuring precise execution of control tasks even under heavy load. It features ample onboard memory (typically 256 MB RAM and 512 MB Flash) for application code, data logging, and web server hosting. The fanless, compact design allows for easy mounting in control cabinets while minimizing maintenance requirements.
Processor: High-performance 32-bit processor (e.g., ARM Cortex-A8 or similar) with FPU
Memory: 256 MB DDR3 RAM, 512 MB Flash (expandable via SD card)
Power Supply: 24 VDC (18–32 VDC) with reverse polarity protection
Power Consumption: Typically 5–8 W
Real-Time Clock: Battery-backed for time stamping and scheduling
The CU313 offers a rich set of communication interfaces to integrate seamlessly into diverse automation environments:
Two independent Ethernet ports (10/100 Mbps) supporting industrial protocols like PROFINET, EtherNet/IP, and Modbus TCP
CANopen interface for real-time device networking and I/O expansion
Two serial interfaces (RS232 and RS485) with electrical isolation
USB 2.0 host port for programming, data transfer, and peripheral connection
Integrated digital I/O (8 inputs, 4 outputs) for direct field device connection
Optional fieldbus modules for PROFIBUS, DeviceNet, or POWERLINK

Fully supported by KEBA's Automation Studio engineering environment, the CU313 enables efficient development of control applications. It supports all five IEC 61131-3 programming languages (LD, FBD, ST, IL, SFC) and includes extensive libraries for motion control, PID regulation, and communication. The controller is also compatible with KEBA's mapp Technology, which provides pre-engineered software components for tasks like HMI integration, logging, and recipe management, significantly accelerating project development.
Built to withstand industrial conditions, the CU313 features a rugged metal housing with IP20 protection. It operates reliably in temperatures ranging from -20°C to +60°C and withstands shock and vibration according to IEC 60068-2. The unit is resistant to electromagnetic interference (EMC) as per EN 61000-6-2 and EN 61000-6-4, ensuring stable performance in electrically noisy environments. Its compact dimensions (approx. 100 x 70 x 60 mm) save valuable cabinet space.
Thanks to its versatility, the KEBA CU313 is deployed across numerous industries:
Packaging and filling machinery
Plastics and injection molding machines
Metal forming and cutting equipment
Robotic workcells and handling systems
Textile and printing machines
Building automation (HVAC, lighting, access control)
It can function as a standalone controller, a distributed I/O node, or a gateway between field devices and higher-level IT systems.
The CU313 carries important certifications for global use: CE, UL/cULus, and RCM. It meets RoHS and REACH environmental standards, reflecting KEBA's commitment to sustainable manufacturing. Each unit undergoes rigorous testing to ensure long-term reliability in mission-critical applications.



