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plcnext hardware firmware and plcnext software revision

gian.floresgian.flores
edited March 2021 in PLCnext Technology & PLCnext Controls

I have a plcnext 2152 hardware firmware of 2021. I am able to download a program on the same PLC with a firmware version of 2020. Why is this allowed. Shouldn't the software revision match the hardware revision? And if it doesn't shouldn't there be an error?

Comments

  • Oliver PLCnext TeamOliver PLCnext Team

    Hello gian,flores
    generally we always strive to achive upward compatibility.
    So if it works with 2020.0 it should also work with higher versions.
     (This is valid for pure ECLR /IEC applications)

    If you are also using Apps or custom C++ sources the story might be different.


    If you use an old template you will not be able to use all feature of the new Version.
    To replace the PLC template in your project copy the 2021.0 Version of the plc and on the left side in PLCnext Engineer press replace.

    kind regards,
    Oliver.

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