KEBA KeConnect C5: Innovative Application of Modular IO Systems in Industrial Automation
Industrial automation systems are developing towards higher integration, greater flexibility, and better performance. As a leading enterprise in the field of automation, KEBA's KeConnect C5 series IO module system is an outstanding representative of responding to this trend. The system is centered around compact size, excellent functionality, and highly modular design, seamlessly integrated through the EtherCAT high-speed bus, providing highly competitive solutions for equipment manufacturers and system integrators.
System Overview: Modular Design, Flexible Expansion
KeConnect C5 is an important component of the KEBA KeControl C5 control family, which achieves maximum flexibility in system configuration by connecting IO modules on the right and inserting expansion cards on the left. This consistent modular architecture enables users to flexibly combine various functional modules like building blocks according to specific application needs, thereby constructing a truly personalized automation control system.
The system provides two types of module widths: the ultra-thin module (width 13.8mm) occupies minimal space in the control cabinet, greatly saving installation volume; The standard module (width 26.5mm) provides more connection points (up to 40 pins), stronger heat dissipation capacity, and the possibility to accommodate special components while maintaining compactness. This differentiated design ensures the best balance between pursuing spatial optimization and functional richness.
Core module types and performance highlights
KeConnect C5 provides a rich range of module types covering a wide range of industrial applications, each of which is deeply optimized for specific needs.
1. Digital IO module: high-density and high reliability
DI 570 Digital Input Module: Provides 19 high-density digital inputs, of which two support cycle time measurement function and can be used for speed detection. Each input channel supports independently configured input filters with strong anti-interference ability.
DO 550/570 digital output module: DO 550 provides 16 channels of 0.5A output and supports 100% synchronization rate; The DO 570 provides 16 2A outputs and has the function of quickly disconnecting inductive loads (such as hydraulic valves), which can accelerate machine cycling and improve productivity. All outputs have short-circuit and overload diagnosis, and are electrically isolated through grouped power supply to meet higher safety requirements.
2. Analog IO module: high precision and fast response
AI 570/571 (voltage input) and AI 575/576 (current input): Provides up to 8 analog inputs with 16 bit resolution, supporting voltage, proportional, or ± 20mA/0-20mA/4-20mA current signal measurement, with a minimum cycle time of 125 μ s. The module integrates sensor power pins, simplifies wiring, and has sensor disconnection detection function.
AO 570/571 (voltage output) and AO 576 (current output): provide up to 8 analog outputs with 12 bit resolution, and also support a fast update cycle of 125 μ s to ensure the dynamic performance of the control circuit.
AM series analog hybrid module: innovatively integrates high-precision analog input and output on the same module. For example, the AM 570/571/572 integrates up to six 16 bit inputs and four 12 bit outputs, and the AM 575/577 integrates current input and output, providing an ideal choice for complex measurement and control tasks with limited space.
3. Temperature measurement module: professional and comprehensive
TI 550 Temperature Measurement Module: Supports various resistive temperature sensors such as PT100/1000, Ni100/1000, KTY, NTC, etc. It can be connected to 8-wire or 4-wire sensors with high measurement accuracy.
TI 570/571 Thermocouple Module: Provides up to 8 inputs, directly supports J, K, L, N type thermocouples, and can be extended to other types through microvolt mode. The characteristic of electrical isolation is achieved for each input, allowing for the mixed use of insulated and non insulated thermocouples without the need to change wiring, greatly improving the convenience of applications such as injection molding machines that require quick mold changes.

4. Positioning and Communication Module: Seamless Integration of Various Devices
MM 540 incremental encoder module: supports two 5V differential or 24V incremental encoders, with 32-bit resolution, 1MHz high-frequency response, frequency measurement with adaptive gate time, and latch input function, which can achieve high-precision position and velocity detection.
MI 550 SSI Interface Module: Provides 4 SSI interfaces, with a maximum transmission rate of 1Mbit/s, supports 32-bit resolution, and has wire breakage detection function, suitable for the integration of high-precision absolute value encoders.
FM 500/IM 500/SM 510/520 communication module: provides various industrial communication interfaces such as CANopen, RS232, RS422/485, 20mA current loop, etc., all of which use shielded connections to ensure anti-interference, and conveniently configure terminal resistors through DIP switches.
5. System and Extension Modules: Building a Complete Network
BL 570/575 bus coupler: As a gateway for connecting KeConnect C5 module to EtherCAT master station, it supports RJ45 or M8 connectors, can be deployed in a distributed IO station, and can provide up to 25W (5V) and 48W (24V) module bus power.
NM 570/575 switch module: used to build EtherCAT star topology and increase network layout flexibility.
PI 570 power module: When the main station power supply is insufficient, it can provide supplementary power to the subsequent connected IO modules to ensure stable system operation.
Core technological advantages: EtherCAT and excellent engineering
1. High performance bus based on EtherCAT
The internal module bus of KeConnect C5 system adopts EtherCAT technology, which is the cornerstone of its high performance. Even with remote expansion through bus couplers, there is no additional system delay. The module bus interface is designed specifically for a cycle time of 62.5 μ s, combined with support for "fast response control", providing hardware support for high-speed and high-precision real-time control applications.
2. Excellent compatibility and flexibility
This system can not only be used to expand KEBA's own controllers, but can also be easily integrated into any third-party control system that supports EtherCAT master station by using bus couplers and provided ESI files, breaking the traditional IO system's lock on the controller and giving users great freedom of choice. At the same time, it supports direct connection, remote bus coupler connection, and building star topology through switches to meet various architectural requirements from centralized to distributed.
3. Humanized design and efficient maintenance
Convenient installation: All modules support tool free DIN rail installation, using push in terminal blocks, and can even connect wires with a cold press head of 1.5mm ², greatly reducing assembly time.
Comprehensive diagnosis: The module provides status, signal, and interface status LED indicators on the front, and all module level diagnostic information (such as short circuit, overload, and disconnection) is uploaded to the upper control system for quick fault location.
Easy to maintain: The module is equipped with an electronic nameplate for easy identification; Support on-site firmware updates to achieve functional upgrades and problem fixes, maximizing device availability.
Durable and sturdy: Operating temperature range from 0 ° C to+55 ° C, compliant with EN 61131-2 standard, and certified by multiple countries such as CE, UL, UKCA, KC, ensuring reliable operation in global industrial environments.
Wide application prospects
The KeConnect C5 system, with its high density, high performance, and high flexibility, is highly suitable for industrial automation fields that have strict requirements for space, speed, and accuracy, such as:
Packaging machinery: requires a large number of IO points and highly synchronized filling, sealing, and labeling stations.
Plastic Machinery: Multi channel temperature control, servo axis positioning, and rapid mold changing system for injection molding machines.
Machine tools and assembly lines: multi axis coordinated motion control, precision measurement, and data acquisition.
Material handling: distributed perception and control of robot units and conveyor systems.
