Siemens Module B3 manual To 3 days Module C To 3 days Module D, Frequency Converter at Simatic S7

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Automation and Drives - SCE

1. PREFACE

In terms of its contents, Module B3 is part of the teaching unit entitled "Additional Functions of

STEP 7 Programming'.

Basics of

STEP 7 Programming

2 to 3 days Module A

Additional Functions of STEP 7 Programming 2 to 3 days Module B

Programming

 

Industrial

Languages

 

Field Bus Systems

2 to 3 days Module C

 

2 to 3 days Module D

 

 

 

Plant Simulation with

SIMIT SCE

1 to 2 days Module G

Process

Visualization

2 to 3 days Module F

Frequency Converter at SIMATIC S7

2 to 3 days Module H

IT Communication with SIMATIC S7

2 to 3 days Module E

Learning Objective:

In module B3, the reader learns the following: how a PID controller is integrated into a STEP7 program, how it is wired to analog process variables, and how it is started. The following steps are discussed:

Program example for a two position controller

Calling a PID controller in a STEP 7 program

Wiring the PID controller to analog process variables

Setting the controller parameters at the PID controller

Prerequisites:

To successfully work through Module B3, the following knowledge is assumed:

Knowledge in handling Windows

Fundamentals of PLC programming with STEP 7 (for example, Module A3 – 'Startup’ PLC Programming with STEP 7)

Analog Value Processing with STEP 7 (for example, Module B2 – Analog Value Processing)

 

Preface Fundamentals

Discontinuous Action Controllerr Controller Block (S)FB41

Setting the System Appendix

 

 

 

 

 

 

 

T I A Training Document

Page 5 of 64

Module

 

 

 

B3

Issued: 02/2008

 

Control Engineering with STEP 7

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Contents Module B3 Automation and Drives SCE Table of Contents Automation and Drives SCE Frequency Converter at Simatic S7 To 3 days Module C To 3 days Module DLearning Objective PrerequisitesPLC Hardware and software requiredTasks of Control Engineering Fundamentals of Control EngineeringFeedback Variable r Components of a Control LoopControlled Variable Setpoint Value w Disturbance Variable zComparing Element Controlling ElementDead Time ActuatorControlled System Characteristics Step Function for Examining Controlled Systems ForAutomation and Drives SCE Time constant Proportional Controlled System with a Time DelayControllability of P-Tn systems Proportional Controlled System with Two Time DelaysTu Delay time Tg Transition time Proportional Controlled System with n Time Delays Controlled Systems without Inherent Regulation Types of Controllers Two Position Controllers Hysteresis Switch-On Value Manipulated Variable TimeThree Position Controllers Basic Types of Continuous Controllers Proportional Controllers P-Controller Automation and Drives SCE Integral Action Controllers I- Controller WithController Layout PI ControllersPID Controllers Derivative Action Controllers D-ControllerObjectives for Controller Adjustment 450.85 Digital Controllers DAC Preface Fundamentals YES StructogramExercise Assignment List Symbol Address CommentNetwork Possible Solution for the PLC ProgramD24/AIFillSetpNorm/Norm.value for level setpoint Network 10 Title Task Definition for PID Standard Controller Function Diagram of the control system with a PID controller Description FB 41 ContcUse Exercise Example Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE SP INT PLC’ Automation and Drives SCE Automation and Drives SCE Automation and Drives SCE T g Approximation GeneralTu-TgApproximation Setting the PI-Controller according to Ziegler-Nichols For setpoint characteristic MAN Solution of the PLC program Setpoint Setting the PI controller according to Ziegler-NicholsAppendix Diagram of the controller blockComrst Bool False Input Parameters Data Value Range Default Description TypeParameter Data Type Value Range Default Lmnhlm Real Lmnllm Output Parameters Parameter Data Value Range Default Description Type