abdullah eraslan

fixed scan execution

2 posts in this topic

we would like to implement an discrete system filter which should be run in fixed scan manner. We called the corresponding FB block (the FB block we written for) in a fixed scan main 1 program but it doesn't work in fixed scan. It works in normal execution main program. In fact any code in fixed scan program isn't executed. Is there any setting to make fixed scan main program to work?

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You  probably haven't programmed an EI (enable interrupt) in your normal execution program. Fixed scan needs interrupt to be enabled

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