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CoDeSysBasic Training

DCS800

DC Drives

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Objectives

After completing this module, you will know

the basics of the Control Builderthe features and limits

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DCS800 Control Builder package

DCS800 drive includes a programming opportunity called “DCS800 Control Builder”

DCS800 Control BuilderCoDeSys software tool

Based on IEC 61131

DCS800 target

Communication interface

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IEC 61131 – Concept and Basics

Based on the international standard IEC 61131 for PLC’s

Build a standardized framework for the programming of control systems

Integration of five well known and modern programming languages

Manufacturer independent

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IEC 61131 – Hardware of the PLC system

Specification of the equipment for the PLCElectrical construction

Mechanical construction

Manufacturer documentation

Test procedure for PLC’s

Environment for PLC’s

PLC’s are designed to control machines or processes in an industrial environment

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IEC 61131- Programming languages

CoDeSys includes 6 programming languages

Definition of programming languages:IL Instruction List (assembler)

LD Ladder Diagram (electric circuit diagram)

FBD Function Block Diagram

SFC Sequential Function Chart (phase diagram)

ST Structured Text (high level language)

CFC Continuous Function Chart (not part of IEC 61131) (fully graphical tool)

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Function Block Diagram (FBD)

Example:

Network 1

Network 2

Network 3

Constant value

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Continuous Function Chart (CFC)

Example:

Sheet

Connection via wiresSequence in the execution order

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Structured Text (ST)

Example:

High levellanguage

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IEC 61131 – Further definitions

Structure of a project

Differentiate types of building blocksOperators

Functions

Function Blocks

Declaration of blocks as instances

Declaration of variables

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CoDeSys DesktopMenu bar

Tool bar

Object organizer

Message window

Editor window

Declaration window

Window change

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CoDeSys windows

Object organizerAll programs, function blocks and functions are listed in this window

Editor windowHere is the program with the blocks

Declaration windowAll function blocks and variables must be declared with the used data type

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CoDeSys windows

Menu barHere you can find all functions of CoDeSys

Message windowThis is an important window of CoDeSys because errors and info about the state of CoDeSys will be shown

A click to the message shows the line or network with the problem

Window changerChange to Resources for Task settings, parameter handling and trace configuration

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Declaration and Variables

Function blocksInstance

VariablesData type, Class

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Working with variables

Connections between blocks and programs are done with variables

Used in:

•FBD

•ST

•IL

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Types of variables

Local variablesUsed in only one part of program

Global variablesUsed in several parts of programs and for user parameters

Input / Output variablesUsed for the definition offunction blocks

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Available data types

Several data types are available

Standard type for DCS800 programming is integer/word because of a 16 bit processor

Further types:Boolean (1 bit)

Byte (8 bit)

Double integer/word (32 bit)

Real (32 bit)

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Data types

In CoDeSys there are the following data types available

Type Minimum Maximum Short

BYTE (8 bit) 0 255 BYTE

DOUBLE INTEGER (32 bit) -2147483648 2147483647 DINT

DOUBLE WORD (32 bit) 0 4294967295 DWORD

BOOLEAN (1 bit) FALSE (0) TRUE (1) BOOL

INTEGER (16 bit) -32768 32767 INT

WORD (16 bit) 0 65535 WORD

REAL (32 bit) -… +… REAL

Internal types: Time, Date, String, etc.

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Differences between DCS800 drive and a PLC

An important difference between a PLC and the DCS800 drive system is the hardware

In DCS800 all hardware devices are fixed

In external PLC’s the hardware is adjustable

DCS800 PLCParameter-Manager Hardware-Manager

New parameters can be added

Hardware is fixed!

New hardware resources can be added

Hardware is variable

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Configuration of CoDeSys tool and DCS800

Configuration of CoDeSys and DCS800ABB special formatted Memory Card

I/O terminal strip of the DCS800

DCS800converter

PCusing

CoDeSysI/O pin board

RS232Memory

Card

sensors and actors

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Requirements for using DCS800 Control Builder

Online connection:DCS800 drive

ABB Memory Card (SDCS-MEM-8)

Serial cable (RS232)

If necessary: adapter … RS232

Used software:CoDeSys software tool

DCS800 Target and DCS800 Library

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Possibilities for serial adapters

If you don´t have a Serial communication port

USB to Serial adapter

PCMCIA card for Serial communication

Attention:Not all adapters are working properly!

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With the DCS800 PLC it is possible to:

Create programs in several programming languages

Connect analog and digital signals from DCS800

Connect all firmware signals and parameters to the application program

Create new user parameters: up to 250

Create new user events: alarms, faults, notices

Work with several task cycles:5, 10, 20, 50, 100, 200, 500, 1000 ms and single actions

Use Function blocks in several libraries

Use Sampling Trace

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Limitations of DCS800

Only a 16 bit processor is availableWe recommended to use no real types

Task cycle limits the number of operations in the selected task

Processor total load is limited

1. calculate firmware control structure

2. calculate both application systemsDCS800 includes only a small PLC

it cannot replace an external PLC

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Configuration

Development system (CoDeSys)

Runtime system

Developmentsystem

CoDeSys

Runtimesystem

DCS800

1. Use CoDeSys to develop offline

2. Compile the CoDeSys program

3. Transmit the code to DCS800

4. Enable the application

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Development System

This is the CoDeSys softwareEditor

Compiler and Debugger

Support all 6 IEC programming languages

Generate code for the CPU

This job is done directly by 3S-software(The CoDeSys software tool development)

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Important definitions

CoDeSys program*.pro-file (development tool code)

Program-code*.prg-file (program)

*.chk-file (checksum)

Source-code*.src-file (real source-code)

Target file*.trg-file (defines the real-time system)

background-files!

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Runtime System

This is e.g. the DCS800 CPU systemI/O update with controller cycle

Communication with the development system

Boot procedure after a power-on

Save program code (here: Memory Card)

Stand-alone system

The runtime system is developed by ABB development

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Implement an application

DCS800 is programmed by parameter list

Also the digital and analog inputs and outputs will be configured by parameters

This means that the CoDeSys programmer have to set also the necessary parameters

An application consists of a CoDeSys program and the configuration of parameters outside CoDeSys program

It is important that the programmer has knowledge about CoDeSys programming and drive configuration

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Professional programming

DriveWindow (DW)Set drive parameters

Monitor drive signals/parameters

Fault tracing

CoDeSys (CB)Create the program

Compile the program

Transmit to DCS800

Online signal forcing

CoDeSys V2.3.lnk

DriveWindow

Both programs can be used simultaneously

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Help wizard

Tool functionality

Operators

Standard library

Errors

Hints

Support only the CoDeSys tool!

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Further documentation

Application ManualSoftware installationTarget installationRequired hardwareMemory cardLibrariesError messages

Firmware ManualSignals and parametersStart-up

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Summary

Key points of this module

Configuration of the runtime system

Configuration of the development system

IEC programming languages

IEC data types

Handling of the CoDeSys tool

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Additional information

Links to related information3S-software.com

DC-Drive-News (Intranet, only ABB internal!)

Additional referencesApplication Manual (3ADW 000199)

Firmware Manual (3ADW 000193)

Hardware Manual (3ADW 000194)

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 BuilderDCS800 application system

PLC_PRGMain program which is used in all applications

POUProgram Organization Unit

LibraryIncludes function blocks which are given or designed by other users