2/7/2019 4:12 PM | |
Joined: 9/27/2006 Last visit: 9/24/2024 Posts: 12282 Rating: (2685) |
Hello Saleem; The answers to your question depends on 2 factors, basically: what type of CP 343-1 do you have (CP 343-1 Lean, CP 343-1...), and the number of bytes you want to exchange between the 2 CPUs. Giving us the part numbers of both of your CP modules would clear up the first issue. SFC 20 (Blkmov) only works inside a single CPU's memory area, so it would not help you to exchange data between CPUs. Have a look at the following screenshot, taken from a very useful document named the CPU-CPU communications compendium. https://support.industry.siemens.com/cs/ww/en/view/20982954 I have extracted tables showing what data exchange functions can be used using CP 343-1 processors, and the maximum size of the data that can be exchanged using various exchange functions. The manual is complex but will anser most of the questions you have on data exchange between your CPUs.There are more examples for each type of comm function avail;able on the forum, use the search box at the right of this page to locate them. Come back to us with the requested information and we can continue this discussion further. Hope this helps, Daniel Chartier |
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