Hi, i am trying to create a new project which is connected with my "industrial" section.
I am using Siemens PLC and HMI.
I want to connect the node red s7 IN to the PLC and take some data or read the data that is sending from it but when I "create" the connection, It doesn't appear anything.(I mean behind of the S7 it must to appear online or offline, and not.)
Can someone bring me some help please?
what does Offline mean?
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