Siemens Module B3 Manuel D’Utilisation
Automation and Drives - SCE
T I A Training Document
Page 38 of 64
Module
Assignment List:
Symbol:
Address: Comment
AI_w
PEW 128
Analog input setpoint generator 0…10V
AI_X
PEW 130
Analog input sensor actual value 0…10V
AO_Y
PAW 128
Analog output manipulated variable 0 … 10V
M_w
MD40
Internal setpoint (floating point number normalized)
Function Diagram of the control system with a PID controller
Regelstrecke
Preface Fundamentals Discontinuous Action Controllerr Controller Block (S)FB41 Setting the System Appendix
Sollwertgeber
Regler
Stellgröße y
Bildung
der
Regelfunktion
Regeldifferenz e = w-x
Soll-Istwert-
Vergleich
Regelgröße x
Stellglied
Controlled System
Final Control
Element
Controller
Controller Output y
Prozess
Process
Generation
Control Function
of
System Deviation e = w-x
Messgeber
Messumformer
Sollwert Int
Setp./Actual Value
Transducer
Setpoint Generator
Setpoint Int
Measuring Sensor
Contr. Variable x
Comparison
B3
Issued: 02/2008 Control Engineering with STEP 7