S7 - Help with Counter using STL

Join Date
Dec 2008
Location
Toronto
Posts
42
I am just learning S7 and STL. So please forgive me if this sounds basic. I am using a CPU 416F-2 PLC.

I have a counter and it increments once everytime "M_10.1" is true. I set my Preset to that counter to 5 when "M_10.3" is true. Why does my counter continue to increase past 5? I am not really sure the purpose of the Preset! Thanks for your response.

A "M_10.1"
CU C 1
A "M_10.2"
CD C 1
A M 10.3
L C#5
S C 1
A M 10.4
R C 1
L C 1
T MW 12
 

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