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IO643: CANopen Master I/O Module

CANopen Master I/O Module with Simulink® driver blocks 

The IO643 I/O module is a CANopen module to connect real-time target machines to external industrial devices such as motor controllers, sensors, I/O stations and robots.
The IO643 handles the complete data exchange between the connected CANopen slaves and the real-time application. The data exchange is processed via a dual-port memory. The module acts as one CANopen master exclusively.

This I/O module is ideal for rapid control prototyping of industrial devices such as programmable logic controllers (PLC) and hardware-in-the-loop simulations using MATLAB® and Simulink® for testing industrial equipment such as motor controllers.

The IO643 I/O module is fully compatible with the Simulink Real-Time™ workflow. The extensive Simulink Real-Time driver blockset offers comprehensive functionality and firmware updates are easily available, as the Setup driver block downloads microcontroller firmware each time a target application is initialized.

Key Features

  • Exchange data with up to 126 devices via the CANopen protocol 
  • Easy-to-use graphical network editor with PDO mapping functionality 
  • DMA enables fast data exchange on PCI bus 
Form factor PCI/PCIe/mPCIe
Power requirements 650 mA @ +3.3 V DC 
Bus 32 bit/33 MHz, Revision 3 of PMC specification, P1386.1
Connectors D-sub connector, 9 pins
Operating temperature -20ºC to +70ºC
Certification CE
I/O Access  
Communication standard  CiA Work Draft 301 V4.02 specification
Maximum number of supported slaves  126
Cyclic communication (PDO)  Supported
Acyclic communication (SDO)  Supported
Maximum number of cyclic input data  3564 bytes
Maximum number of cyclic output data 3564 bytes
Maximum number of receive PDOs 512 
Maximum number of transmit PDOs 512 
Monitoring Node guarding protocol, heartbeat protocol
Baud rate 10 kBit/s to 1 MBit/s
Data transport layer  CAN frames
CAN frame type 11 bit


Item ID Product Name Components
2X643*  IO643
  • 1x IO643 I/O module 
  • Driver block library for Simulink Real-Time 
  • Comprehensive documentation and Simulink example models 
  • Installation into the real-time target machine 

Key to X in Item ID
* Please replace the X with the code number of the specific target machine for the I/O module installation:

A = Performance real-time target machine (PCI) 
B = Performance real-time target machine (PCIe) 
C = Mobile, Baseline and Unit real-time target machines (mPCIe) 

Pricing information
We don't publish pricing information on our website. Upon request by e-mail or phone we can provide a complete price list covering our entire product portfolio in various currencies. We recommend that you get in touch with us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.

IO643: CANopen Master I/O Module IO643: CANopen Master I/O Module

Included in the Delivery

Common Applications

Supported target machines

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