A
I would like to read and write data to my PLC (Simatic s7-400) via Excell in VBA. I've tried it with the datacontrol, but i'm stuck. I don't excactly know how the methods e.g. writevariable, write multivariables works.
I want even if it is possible to read and write complete array in my plc. But I don't know which code to use.
I want even if it is possible to read and write complete array in my plc. But I don't know which code to use.