hi the body,

thank you very much for your answer it was very helpful.

hi everybody,

i have a problem in wincc i did communication between s7 and wincc and it work good but in the wincc i did a bouton for  cycle begin and i did if i press left the bouton must be on and if i clic right the bouton must be off . in runtime wincc when i press left and release the bouton was off and in plcsim no change the bouton alwas off even if i press right for cycle begin

please find attached the pisture.

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Split from PLCSim and WinCC, have I to do s7online in wincc or not.

Is the connection to your S7 (real or plcsim) ok?

You can check this in the WinCC Explorer if you open the Tag Management. Then there should be a connection state (connected, or any error)

hello thomas ,

thank you very much for your response i changed the philosophie  please the input for exemple E if ou want to do it in wincc doesn't work you must always remonte bit like M0.0 interne and not E0.0 or output