[?]: PID regulator with FB41 and FB43

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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deividasn
Posts: 16
Joined: Thu Jan 15, 2009 10:09 am
Location: Baltia

[?]: PID regulator with FB41 and FB43

Post by deividasn »

Hi I am beginner
I programing Pulse PID regulator with FB41 CONT_C and FB43 PULSGEN bloks
I wont correctly assign minimum pulse or minimum break time P_B_TM
Maybe you know how i can write this formula in step 7 program?

P_B_TM = LMN/100*PER_TM

P_B_TM - minimum pulse/break time
LMN - manipulated value
PER_TM - period time - 50ms
thanks