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bernhard.riester
bernhard.riester
Associate
July 17, 2019
Question

Custom IO-Link Sensors on STEVAL-IDP004V1?

  • July 17, 2019
  • 6 replies
  • 1134 views

Hi,

I'm currently working with the STEVAL-IDP004V1 and I'd like to get process - and service data from a sensor. But in the software examples [https://www.st.com/content/st_com/en/products/embedded-software/evaluation-tool-software/stsw-io-link.html] I'm just able to find a custom set of commands exchanged with the STEVAL-IDP003V1. Are there examples who to read (and write) data with a given IO-Link sensor?

Best regards

Bernhard

    This topic has been closed for replies.

    6 replies

    Winfred LU
    Winfred LU
    ST Employee
    July 22, 2019

    It seems the sample codes have been already in the package, STSW-IO-LINK v1.1.1

    https://my.st.com/content/my_st_com/en/products/embedded-software/evaluation-tool-software/stsw-io-link.html

    bernhard.riester
    bernhard.riesterAuthor
    Associate
    July 22, 2019

    Thank you for your answer. This is the code I've already looked at. Here I find no possibility to read process data, but only a function to send byte sequences to the sensor and to receive them. The sensor board [https://www.st.com/en/evaluation-tools/steval-bfa001v1b.html] says that no stack is supplied for this.

    But is there a stack for the master, or would it have to be implemented by the user?

    Winfred LU
    Winfred LU
    ST Employee
    July 22, 2019

    Hi Bernhard,

    Not quite understand your question.

    STSW-IO-LINK contains 2 packages:

    • STEVAL-IDP003V1 package provides IO-Link communication, sensor configurations, and GPIO interrupts for sensor data.
    • STEVAL-IDP004V1 package provides the communication with PC Hyper Terminal for STEVAL-IDP004V1 configuration and data exchange with STEVAL-IDP003V1 board hosting the L6362A device.

    Possibly you're looking for STSW-BFA001V1 ?

    https://www.st.com/content/st_com/en/products/embedded-software/evaluation-tool-software/stsw-bfa001v1.html

    Best Regards,

    Winfred

    bernhard.riester
    bernhard.riesterAuthor
    Associate
    July 22, 2019

    Should have been an answer to aboves reply. could be deleted

    Hi Winfred,

     

    sorry for the confusion.

     

    Situation:

    I'd like to use the STEVAL-IDP004V1 to read data from an real IO-Link standard conform sensor. I do not have the STEVAL-IDP003V1. In the sourcecode you linked the communication between those two boards is not "real" IO-Link, but RAW Bytes through the IO-Link controller. So it's more or less just UART with different voltages. In explaination of STEVAL-IDP003V1 this is mentioned: "The package is IO-Link capable (IO-Link stack is not included) with a demonstration that includes communication with the STEVAL-IDP004V1 IO-Link-master-capable multi-port evaluation board."

     

    My question is: Is there a IO-Link Stack available for the STEVAL-IDP004V1 to communicate with real IO-Link Sensors and read/write process data and service data rather than raw bytes (where I have to take care about headers, timings, flags and so on according to specification)?

     

    If I get the board correct it's just the hardware implementation of the IO-Link standard and not the software-stack. So more or less the second question is: Is this assumption correct?

     

    Best regards

    Bernhard

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