2/13/2016 3:47 PM | |
Joined: 9/27/2006 Last visit: 9/20/2024 Posts: 12282 Rating: (2684)
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Hello morgrnstern; On the subject of Input and Output parameters, FCs and FBs react differently. FCs must have every parameter specified and linked to a global variable; FBs are more accommodating (because they use Instance DBs for Temp parameters) and you can leave some I/O parameters free. The best presentation of this difference between functions and function blocks I have seen on the forum was proposed by HH in the following discussion: Difference between FBs and FCs https://support.industry.siemens.com/tf/ww/en/posts/18334/ Hope this helps, Daniel Chartier |
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