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CoDeSys ExerciseUser Parameters

DCS800

DC Drives

Note:This module is an exercise without a speaker!

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Objectives

Create new parameters

After completing this module, you will be able to

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Create new parameters

Read parameter

Write parameterfor internal scaling

Cyclic readingfrom parameter

Write parameterProtect parameteror group

Overview about DCS800 parameter blocks

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Exercise 3: User defined parameters

With DCS800 and CoDeSys it is possible to create user defined parameters

Parameter groups 60 ... 69 are reserved for user defined parameters

It is possible to create texts for the user defined parameters and set their range and units

The user defined parameters are shown in DriveWindow (DW), DriveWindow Light (DWL) and on the DCS800 panel

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User defined parameters

The actual speed must be scaled due to an attached gearbox

The adapted speed shall be written to the user defined parameterP61.05 and to Auxiliary speed parameter P23.13

The gear ratio is 1 : 2 (can be selected by variable Ratio)

Example: Scaling of speed actual and writing to the user defined parameter (61.05) and P23.13

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Start CoDeSys and create a new project

Select CFC as language (PLC_PRG)

Insert following boxes:DriveState: Used to read the actual speed (P1.04)

MulDiv: Used to scale the speed

ParSet: Used to write to a system parameter

Build a new program

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Build the program

Define a new parameter 61.05 to set the gear ratio (Ratio)

Define a new parameter 61.06 to get the signal CalcSpeed

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Create global variables

User defined parameter variables must beGlobal Variables

The following variables must be declared as global ones:CalcSpeed

Ratio

Select tab Resources and double click onGlobal Variables

Note:Global Variables can used in several programs!

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1. Select tab Resources

1.

2.

2. Double click on Parameter Manager

Create user defined parameter groups

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Create user defined parameter groups

Open window Insert listInsert List…

Select Variables as TypeAdd a name for the user defined parameter group and confirm with OK. This name will also be shown as parameter group name in the parameter list.

Attention:It is not possible to choose Parameters, Template, Instance or System parameters!

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Create user defined parameters

Create a new line for the parameterInsert Line

A second line for the next parameter can be created by means of

Insert Line after

16#0 is Hex format. It can be changed withExtras Format Dec/Hex

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Setting of user defined parameters

Insert the settings of the user defined parameter

Group Parameter groups 60 … 69 are reserved for user defined parameters

Index CoDeSys will later display values of group and index in HEX

Name Names will be displayed in the parameter lists

Var If the variable is declared as global, insert a dot before the name

Def Min Max Default, minimum and maximum value of the parameter

Unit => No (desired unit)

DispTyp => integer (displayed unit)

DecPt => 0 (decimal point)

Readonly => unselect (parameter has to be written)

NoSav => unselect (parameter has to be saved)

OFF => unselect (parameter can be written w/o Off-Status)

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Test the program

Build your project (F11)

Configure the communication to the DCS800Port: COM xBaudrate: 38400 Parity: Odd StopBits: 1 Motorola byteorder: Yes Flux control: No

Set the task configuration

Login and test your program

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User defined parameter Gear_Speed (61.05) can be seen in DriveWindow light

…in DriveWindow or on the DCS800 panel

Test the application program by changing the gear ratio and have a look at CalcSpeed and P23.13 (auxiliary speed)

Test the program

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Summary

Generation of new parameters

Key points of this module

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Additional information

Links to related information3S-software.com

DC-Drive-News (Intranet)

Additional referencesApplication Manual (3ADW 000 199)

Firmware Manual (3ADW 000 193)

Hardware Manual (3ADW 000 194)

Training Material

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Glossary

CoDeSysController Development System (software tool)

Memory CardFlash memory

DriveWindow LightSoftware Tool for commissioning and maintenance using AC/DC

TargetInterface between Drive and CoDeSys tool

Control BuilderWhole system with software and hardware

PLC_PRGMain program which is used in all applications

POUProgram Organization Unit

LibraryIt includes function blocks which are given or designed by other users