6/28/2009 6:50 PM | |
Joined: 12/20/2008 Last visit: 8/12/2024 Posts: 556 Rating:
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Ok It Seems that I would rather wait then to take risk... |
6/29/2009 2:07 AM | |
Joined: 10/7/2005 Last visit: 8/29/2024 Posts: 3018 Rating:
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Dear all here's my 2 cents worht on this subject: You can all rest assured that Siemens will have done a proper development and testing effort and that you will be able to make the S7-1200 do what it is supposed to do. So much for the goodnews, as you can also all rest assured that there will be teething issues and "undocumented features" in it(how many remains to be seen) This is unfortunately the the nature of modern technology and developments, if Siemens (or other companies for that matter) would do product testing to a point that they can release an absolutely flawless productwe would still wait for S7 PLC's to be released. What we allneed to bear in mind in this case thoughis that we are not only dealing with a new hardware platform and associated CPU firmwarehere, BUT also with a completley new programming tool called Step7 Basic V10.5 with integrated WinCC basic (and don't be mislead by the V10.5 numbering, I think the marketing team shifted the decimal point one place to many, as this is by its nature a V1.0 release). It's a tough choice to make for Lalit, if hegoes for a proven S7-200 then herisks that the customer will complain that hereceived a superseeded solution. If however Lalit offers a S7-1200 solution, he will have to pay the price of spending some extra engineering hours to make it work and possibly a fewcalls to hotlines (it may all go well too though, you simply won't know until you've done it). Personally - by the way - I'm with IBN-Service on this one. And finally, here's a differentadvise that may convince you not to use an S7-1200: S7-1200's doNOT have STL programming capabilty (only LAD and FBD)!!!! (perhaps worthwhile considering using a real PLC, a small IM151-7 or 8 setup may be what you are looking for). |
Cheers |
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