Read device information via CAN-Open

Chris D 1 year ago in IQANdesign updated by Gustav Widén (System support) 1 year ago 2

Hello everyone,

I'm still relatively new to IQAN design and would like to integrate an I/O board from Datapanel.

For this I first try to read information from the board using CAN-Open. Later this board will also be used for inputs and outputs.

Unfortunately, I fail to read out information because I don't know how this can be realized via IQAN design and CAN-Open. I found the following information in the manufacturer's documentation.

Image 3575

Hi Chris,

IQAN does not support CanOpen (yet).  So for the time being you will need to create an outgoing and an Incoming Generic canbus message that follows the CanOpen SDO Protocol.

The IQAN procesor sends the Request to rea

The information shown are indexes from the CANopen object dictionary. 

To read the information in the entries shown, you need to make a read request using SDO. 

In the IQANdesign solutions library, there is an example of how to read and write SDOs using generic CAN.