Siemens Module B3 manual Output Parameters, Parameter Data Value Range Default Description Type

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Automation and Drives - SCE

Output Parameters:

Parameter

Data

Value Range

Default

Description

 

Type

 

 

 

LMN

REAL

0.0

 

MANIPULATED VALUE. At the output "Manipulated value",

 

 

 

 

the effectively active manipulated value is read out in the

 

 

 

 

floating point format.

LMN_PER

WORD

W#16#0000

 

MANIPULATED VALUE PERIPHERY. The manipulated value

 

 

 

 

in the periphery format is wired to the controller at the output

 

 

 

 

of "Manipulated value periphery“.

QLMN_HL

BOOL

FALSE

 

HIGH LIMIT OF MANIPULATED VALUE REACHED. The

 

manipulated value is always limited to a high and low limit.

M

 

 

 

 

 

 

The output "High limit of manipulated value reached" signals

 

 

 

 

 

 

 

 

that the high limit has been exceeded.

QLMN_LL

BOOL

FALSE

 

LOW LIMIT OF MANIPULATED VALUE REACHED. The

 

manipulated value is always limited to a high and low limit.

M

 

 

 

 

 

 

The output "Low limit of manipulated value reached" signals

 

 

 

 

 

 

 

 

that the low limit is underrange.

LMN_P

REAL

0.0

 

PROPORTIONALITY COMPONENT. The output "P-

 

 

 

 

component" contains the proportional component of the

 

 

 

 

manipulated variable.

LMN_I

REAL

0.0

 

INTEGRAL COMPONENT. The output "I-component“

 

 

 

 

contains the integral component of the manipulated variable.

 

 

 

 

 

LMN_D

REAL

0.0

 

DERIVATIVE COMPONENT. The output "D-component"

 

 

 

 

contains the derivative component of the manipulated

 

 

 

 

variable.

 

 

 

 

 

PV

REAL

0.0

 

PROCESS VARIABLE / actual value. At the output "Actual

 

 

 

 

value", the effectively active actual value is read out.

ER

REAL

0.0

 

ERROR SIGNAL / System deviation. At the output "System

 

 

 

 

deviation", the effectively active system deviation is read out.

 

 

 

 

 

 

Preface Fundamentals

Discontinuous Action Controller Controller Block (S)FB41

Setting the System Appendix

 

 

 

 

 

 

 

T I A Training Document

Page 64 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 To 3 days Module C To 3 days Module D Frequency Converter at Simatic S7Learning Objective PrerequisitesHardware and software required PLCFundamentals of Control Engineering Tasks of Control EngineeringControlled Variable Components of a Control LoopFeedback Variable r Disturbance Variable z Setpoint Value wComparing Element Controlling ElementControlled System ActuatorDead Time Characteristics For Step Function for Examining Controlled SystemsAutomation and Drives SCE Proportional Controlled System with a Time Delay Time constantTu Delay time Tg Transition time Proportional Controlled System with Two Time DelaysControllability of P-Tn systems Proportional Controlled System with n Time Delays Controlled Systems without Inherent Regulation Types of Controllers Two Position Controllers Switch-On Value Manipulated Variable Time HysteresisThree Position Controllers Basic Types of Continuous Controllers Proportional Controllers P-Controller Automation and Drives SCE With Integral Action Controllers I- ControllerPI Controllers Controller LayoutDerivative Action Controllers D-Controller PID ControllersObjectives for Controller Adjustment 450.85 Digital Controllers DAC Preface Fundamentals Structogram YESAssignment List Symbol Address Comment ExercisePossible Solution for the PLC Program NetworkD24/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 Use FB 41 ContcDescription 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 Tu-TgApproximation GeneralT g Approximation Setting the PI-Controller according to Ziegler-Nichols For setpoint characteristic MAN Solution of the PLC program Setting the PI controller according to Ziegler-Nichols SetpointDiagram of the controller block AppendixInput Parameters Data Value Range Default Description Type Comrst Bool FalseParameter Data Type Value Range Default Lmnhlm Real Lmnllm Parameter Data Value Range Default Description Type Output Parameters