PM867 - how can we estimate CPU load (and memory load) for a PM867 compare to a PM865 ? (select IO + red PM867)
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you may estimate something with the Table in System Guide 3BSE041434-610:
Type Performance Factor Memory kb
PM865HI 0.9 21959
PM867 1.8 46536
in the same manual you can as well find some numbers for execution time and memory usage of some of the standard functions and function blocks...
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