Manuali utente per Siemens Module B3

Sommario

• 1. PREFACE

  5
• 2. FUNDAMENTALS OF CONTROL ENGINEERING

  7
  • 2.1 Tasks of Control Engineering

    7
  • 2.2 Components of a Control Loop

    8
  • 2.3. Characteristics

    11
  • 2.4 Step Function for Examining Controlled Systems

    12
  • 2.5. Self-Regulating Processes

    13
    • 2.5.1. Proportional Controlled System without Time Delay

      13
    • 2.5.2. Proportional Controlled System with a Time Delay

      14
    • 2.5.3 Proportional Controlled System with Two Time Delays

      15
  • 2.6 Controlled Systems without Inherent Regulation

    17
  • 2.7 Types of Controllers

    18
    • 2.7.1 Two Position Controllers

      18
    • 20
    • 2.7.2 Three Position Controllers

      20
    • 2.7.3 Basic Types of Continuous Controllers

      21
      • 2.7.3.1 Proportional Controllers (P-Controller)

        22
      • 2.7.3.2 Integral Action Controllers (I- Controller)

        24
      • 2.7.3.3 PI Controllers

        25
      • 2.7.3.4 Derivative Action Controllers (D-Controller)

        26
      • 2.7.3.5 PID Controllers

        26
  • 27
  • 2.8 Objectives for Controller Adjustment

    27
  • 2.9 Digital Controllers

    29
• 3. DISCONTINUOUS ACTION CONTROLLER AS TWO POSITION CONTROLLER

  31
  • 3.1 Function and Problem Description

    31
    • Symbol: Address: Comment

      33
  • 3.2 Possible Solution for the PLC Program:

    34
• 4. CONTROLLER BLOCK (S)FB41 "CONT_C" AS SOFTWARE PID CONTROLLER IN STEP 7

  37
  • 4.1 Task Definition for PID Standard Controller

    37
    • Symbol: Address: Comment

      38
  • 4.2 (S) FB 41 “CONT_C“

    39
    • Operating modes complete restart/restart

      39
      • Error Information

        39
  • 4.3 Exercise Example

    40
• 5. SETTING CONTROLLED SYSTEMS

  54
  • 5.1 General

    54
  • 5.2 Setting the PI-Controller according to Ziegler-Nichols

    55
  • 5.3 Setting the PID Controller according to Chien, Hrones and Reswick

    55
  • 5.4 Exercise Example

    57
• 6. APPENDIX

  60
  • Output Parameters:

    64