Dear sir,

I need more details about each bit of control word of s120

Thank you

Hi,

you will find all details of different control and status words in this list manual for S120:

https://support.industry.siemens.com/cs/de/en/view/109781807

For example the "normal" STW1 (control word 1) you find on page 2144 - it is function chart 2442. You will find all of the control and status words in this document under the function diagrams -> PROFIdrive. Also all telegrams are described in detail.