Tom749 Posted April 16, 2015 Report Posted April 16, 2015 Hi, I have one question about modbus communication by step 7 program such as attachment. Could you explain about that following this step? 1) What is the meaning of the operator? (the red characters) (id_o_a :="CONTROL_DAT", id_0_a) 2) What is the meaning or the purpose of the whole STL program? Thanks for your help in advance. Quote
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