IO Modules

for CAN, CANopen and EtherCAT

With the CANio 250/500 and the ETCio 100, HMS offers three modules enabling quick and easy connection of analog and digital input and output signals to CAN, CANopen and EtherCAT systems – whether in experimental setups, test benches or vehicles.

IO Modules for CAN, CANopen and EthertCAT - Title


Universal use

Robust design and wide power supply range allows universal use


Analog & Digital

Support for both digital and analog IOs on one device



Easy configuration and versatile configuration options

CANio 250

Universal I/O gateway for CAN and CANopen systems

The CANio 250 enables the easy and quick connection of digital input and output signals to CAN or CANopen systems - whether in experimental setups, component test stands or vehicles.

Please note: This product is discontinued as of 31.12.2020. A replacement product is not available.

Order codes: 1.01.0099.00000

IO Modules - CANio 250 for CAN and CANopen

Features and benefits

  • Suitable for CANopen and CAN layer 2 networks
  • Up to 16 digital inputs + clamp 15 (5 V CMOS compatible)
  • Up to 16 digital outputs, max. 30 mA, 5 V CMOS signal levels
  • Universal use due to robust design and wide power supply range
  • Easy configuration and versatile configuration options

Contents of delivery

  • CANio 250
  • Manual

Technical specifications

CAN Protocols CAN, CANopen
CAN Bus Interface ISO 11898-2
Galvanic Isolation Yes (500 V DC)
Digital Inputs Up to 16 x + clamp 15 (5 V CMOS compatible)
Digital Outputs Up to 16 x, max. 30 mA, 5 V CMOS signal levels
Further Interfaces 2 LEDs; Measurement of the power supply
Temperature range for operation -40 °C to +70 °C
Power Supply 6-32 V
Types of Plugs CAN: D-SUB-9; I/O: D-SUB-9
Protection Class IP42
Dimensions 75 x 82 x 32 mm

How it works

The CANio 250 offers 16 TTL compatible I/Os, which can be individually configured as input or output in groups of each 8 signals. The device is designed as self-starting CANopen slave with all important parameters, such as Node-ID or default values, stored on the device. This enables the device to start its operation directly after start up, without making any further settings, and allows due to this the operation in basic CAN systems.

The individual configuration of the CANio 250 for different applications can be done either by loading configuration data via a CANopen master or by sending configuration messages in a pure CAN network or offline via the free CANio configuration tool. Configurations that have been created with the CANio configuration tool can be saved as a project and on customer request preinstalled on ordered devices before delivery.

CANio Configuration Tool

The CANio Configuration Tool, included in the scope of delivery, enables the easy and fast configuration of the CANio 250 and CANio 500 devices. To download the configuration file to the device a CAN interface is required, e.g. USB-to-CAN V2 compact. The range of functions of the Windows software includes:

  • CAN parameter configuration (baud rate, message ID's, cycle times) 
  • Configuration of the digital inputs (interrupt capability, debounce time) and (only CANio 500) of the analog inputs (interrupt capability, delta value)
  • Configuration of the digital outputs (default value) and (only CANio 500) analog outputs (output voltage range, default value)   
  • Firmware update
  • Storage of the configuration into a configuration file and import of the configuration file


Configuration Tool for the IXXAT IO Modules

Order number

1.01.0099.00000 CANio 250 - Standard

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