siemens plc-s7

hai every one
iam venkat working in a private companyas a electricl incharge, we are using siemens make plc in our machines ,
since this plc will be program by commissioning engineers intilally, iam having basic knowledge in plc but iam intrested in pragramming and making ladder logic in plc, can any one help me by guiding me proper so that ican do programming in my own site since iam having one spare plc in our unit.

thanks
eshwar

Hello eshwar;
Siemens provides many manuals for its automation components, and all of them are freely available on the Siemens support site:
https://support.automation.siemens....&extranet=standard&viewreg=WW&groupid=4000003
Using the search box for "Step 7 programming" fior example you will find much material for your personnal use.


For your initial contact with S7 PLCs, I could recommend the following tutorials for Siemens S7 PLCs:
https://www.automation.siemens.com/...download_training_material/Pages/Default.aspx

Each downloadable module has different step-by-step examples of sample programming or configuration tips. They are based on a S7-300 CPU, but most of them can just as easily be programmed on a S7-400, if required.
Hope this helps,
Daniel Chartier