1/5/2019 8:02 PM | |
Posts: 2826 Rating:
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@dchartier: Could you suggest to a designer (ignoring PLC types and in general terms) How does one approach such a task of porting one system over to another. |
1/5/2019 9:40 PM | |
Joined: 9/27/2006 Last visit: 9/4/2024 Posts: 12282 Rating:
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Hello #dP; To tell the truth, I have had bad experiences with pre-made converters, even from Siemens. The TI545 to S7-300 converter was a mess and generated a single program file (OB1) if you did not take the time to split the TI rungs into separate functions for the S7 program; which did not make sense to the program until you re-programmed everything; the S5 to S7 converter requires the elimination of most communication and control functions in the S5 program before conversion, then using the S7 equivalent instructions and configurations in the new system. Basically, I tend to be a bit conservative when I face a conversion from one system to another these days (I have had to manage migrations between Controllogix and GE CPUs, bewteen S7 and Controllogix): to do this efficiently you really need a programmer who is fluent in both systems, and who also has studied the original project and all its details. I then treat the conversion as a programming of the plant functionalities in the new programming environment. It saves time and frustration. Even Siemens tends to treat the conversion of a S7-200 to a S7-1200 CPU as a "transition" rather than a conversion. This implies a compete reprogramming in TIA Portal, See this article on the subject: Notice that it the webpage and in the document there is no mention of a conversion software between the 2 platforms. So I leave traditional converters to the beginners in my group, so they can try to figure out the error messages they get when they use them for the first time. It can be an excellent learning tool. Hope this helps, Daniel Chartier |
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