FP

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If the input has got a rising (positive) edge the output will be set to ‘1’ for one cycle. Please see to it that the edge trigger flag (in the picture M 0.2) is not used anywhere else (that means neither in the program nor in the machine)!

 

Syntax:


A

I 0.1


FN

M 0.2


=

Q 0.0

 

Remark:

In STEP®7 FBD/LAD there is also another display of the edge that is noted in STL like this:

 


A

I 0.1


BLD

100


FN

M 0.2


=

Q 0.0

 

This display is not supported by TrySim.

 

See also:

FN

 

List of operations

 

STEP®7 is a registered trademark of the Siemens AG.