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Modbus RTU write trigger

2017-10-03
2018-02-27
  • johan.bolin - 2017-10-03

    Hi,

    I'm looking for documentation on the "Application" trigger type for the Modbus RTU write function. Both the library documentation and the online help only mentions the "Cyclic" and "Rising edge" types.

    Best Regards,
    Johan

     
  • eschwellinger

    eschwellinger - 2017-10-03

    Hi,
    this is a configuration on the channels...

    https://help.codesys.com/webapp/mod-edt ... n=3.5.11.0
    Additional since SP11 you could use the Modbuschannel fb which you could use by your application code.

    BR
    Edwin

    IMG: Channel.jpg

     
  • teichhei - 2018-02-27

    Edwin Schwellinger hat geschrieben:
    Hi,
    this is a configuration on the channels...
    https://help.codesys.com/webapp/mod-edt ... n=3.5.11.0
    Additional since SP11 you could use the Modbuschannel fb which you could use by your application code.
    BR
    Edwin

    Hello Edwin,

    This is what I'm trying to work out, too. How do I use the modbuschannel fb to trigger the channel?

    Kind Regards

    Heinz

     

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