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Establish a connection to the device that you want to link via Ethernet/IP.
In this example, a Wago controller (Ethernet/IP adapter) is used again.
The required steps are listed in this FAQ article:

Connecting to a WAGO Fieldbus Coupler via Ethernet/IP (IP scanner)

Your project should look like this:


  • Adapt the POU PLC_PRG as follows:

    Section
    Column
    width7

    Declaration

    Column
    width93
    Code Block
    themeConfluence
    VAR
    xSet                : BOOL;
    abyNewIp            : ARRAY [0..3] OF BYTE := [192, 168, 99, 139]; // = wrong IpAddr !!
    itfEthIpRmAdapter   : IoDrvEthernetIP.IRemoteAdapter2;
END_VAR



    Section
    Column
    width7

    Implementation

    Column
    width93
    Code Block
    themeConfluence
    IF xSet Then
    xSet := FALSE;
    itfEthIpRmAdapter := WAGO_750_352020_000_Ethernet_STD; // must be the exact name of the tree node
    itfEthIpRmAdapter.IPAddress := abyNewIp;        
END_IF





  • Download the modified project to the controller.

  • By setting the variable, the incorrect IP address is sent to the remote adapter and its connection is lost.



    When the correct IP address is sent, the connection to the Ethernet/IP adapter is reestablished.