35 Tia Portal v11 Scl Rela8 En

For internal use only / © Siemens AG 2012. All Rights Reserved.

TIA Portal V11 SP2

SCL in STEP 7 V11 SP2


Exercises

Source files

Compiling/testing

Further models for addressing

Type conversion

Language description

Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2

For internal use only / © Siemens AG 2012. All Rights Reserved.I IA AS S SUP FA 2012-02-13 SCL in STEP 7 V11 SP2

Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2What is SCL ?

S7-1200S7-400

WinACS7-300

Structured Control Language as text-basedCorresponds to IEC 61131-3 (ST) Certified according to PLCopenComplex calculations & algorithmsData operations, e.g. sort dataProgram code exchangeable between S7-1200, S7-300, S7-400 and WinAC

SCL := high-level language programming + extensions typical for PLCs ;


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Usage of SCL: IF data_operation THEN SCL

3630.05290.0

6383.09215.0

13195.0

3630.05290.06383.09215.013195.0

Example: Storage of Real-values in an array


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Usage of SCL: IF data_operation THEN SCL

S7-400

WinACS7-300

S7-1200

S7-400

WinACS7-300

S7-1200

Code in STL for S7-300/400

Code in LAD for S7-1200 Solution in SCL for S7-300/400

AND S7-1200 (with SP2)


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Add a new block

Add a new block

Programming language

Block name


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2


Exercises

Source files

Compiling/testing


Type conversion

Calling blocksControl operations

Indirect addressing

Direct addressingOperators


Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Operators

(,)(Statement)Parenthesis

+,-+,-*, /, DIV, MOD**

Plus, minus (sign)Addition, SubtractionMultiplication, DivisionExponentiation

Arithmetic

<, <=, >, >=,=, <>

Less than, less than or equal to, greater than, greater than or equal to,equal, not equal to

Comparison

NOTAND, &ORXOR

NegationAND ORExclusive-OR

Binary logic

Assignment

Description

:=Assignment

OperatorCombination

result := expression ; Example: switch_on := manual_on OR auto_on;

All assignments, control operations and calls are ended by ;

S7-1200S7-400

WinACS7-300


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Control operations – Overview

Block abort

Loop aborts

Program loop(Abort possible)

Program branching

Exit program loopEXIT

Exit the blockRETURN

Program branching with BOOLean ValueIF

Program branching with INT ValueCASE

Program loop with run variableFOR

Program loop with execution conditionWHILE

Program loop with abort conditionREPEAT

Abort current loop passCONTINUE

Keyword Functionality

Control operations can be programmed easily using the code snippet!

S7-1200S7-400

WinACS7-300


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Program Branching - Syntax

IF Condition1 THEN

Statements 1;

ELSIF Condition 2 then

Statements 2;

ELSE

Statement s;

END_IF;

Condition is of type Bool

IF Statement:Example of use

STL

SCL


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction


CASE Selection OF

Const1: Statements 1;

...

Constn: Statements n;

ELSE

Statements 3;

END_CASE;

Selection is of type INT

CASE Statement: Example of use

STL

SCL


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction


For START_VAR TO END_VAR BY STEP_WIDTH DO

Statements;

END_FOR;

START_VAR, END_VAR und STEP_WIDTH must be of type INT or DINT

FOR Statement:

WHILE Condition DO

Statements;…..

END_WHILE;

Condition is of type BOOL

WHILE Statement: REPEAT Statement:

REPEAT

Statements;

UNTIL Condition;

END_REPEAT;

Condition is of type BOOL


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Program loop - Example

Example of useSTL SCL

With SCL:

Symbolic Programming possible

OR


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Loop abort - Syntax

For i:= a To c DO

IF condition THEN CONTINUE;

END_IF;

further Statements

END_FOR;

After Continue, the control variable is incremented by the specified increment immediately.

CONTINUE :

For i:= a To c DO

IF condition THEN EXIT;

END_IF;

END_FOR;

Execution of the program is continued after the end of the loop (FOR Loop).

EXIT :


Exercises

Source files

Compiling/testing


Type conversion


Indirect addressing



Data Types

SCL in TIA Portal

Introduction

SCL in STEP 7 V11 SP2Block abort - Syntax

IF condition THEN Return;

ELSE statement1;

END_IF;

RETURN exits the currently active block (OB, FB, FC) and returns to the calling block

Return :

IF condition THEN GOTO LABEL;

END_IF ;

…..

LABEL: INDEX := 1 ;

GOTO causes an immediate jump to the specified label and therefore to a different statement within the same block.

GOTO :


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2


Exercises

Source files

Compiling/testing


ExplicitImplicit

Type conversion


Data Types

SCL in TIA Portal

Introduction

Implicit data type conversion:Processing of operands of different data types

Automatic conversion of data types

Automatic conversion of data types to match the biggest one

No explicit conversion necessary

DInt

Int

SInt

LReal

S7-1200S7-400

WinACS7-300

Example:


Explicit data type conversion:Processing of operands of different data types (e.g. Char -> INT)

FBD (for S7 - 300 / S7-400)

SCL

SCL is also offering instructions for the explicit data type conversion (especially for String and Character types). With those instructions code keeps more independent of the used controller type.


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2


SCL in STEP 7 V11 SP2Testing of SCL blocks

Einstellungen des Editors (S7-SCL V5.3)In case the loop is not executed:

Values have grey appearance

Monitor column can be adjusted in width and position

Collapsed: only result is shown

Expanded: all operands of a line are visible

Clicking a line shows an additional window with all referred operands

S7-1200S7-400

WinACS7-300


SCL in STEP 7 V11 SP2Block comparison

The comparison is performed directly in the SCL source code! Differences can be found easily!

Difference

List with all differences

Offline / Offline:

S7-1200

S7-400

WinACS7-300

Offline / Online:

S7-1200


Exercises

Source files

Compiling/testing


Type conversion


Data Types

SCL in TIA Portal

Introduction

TIA Portal V11 SP2


Importing external source files

Import an external source file

S7-1200S7-400

WinACS7-300


Importing external source files

Generate blocks

Source files from STEP 7 classic can be easily imported and generated in STEP 7 V11!

S7-1200S7-400

WinACS7-300


Saving blocks as external source files

11

Blocks can be saved easily as external source files

22

S7-1200S7-400

WinACS7-300


I IA AS S SUP FA

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Phone: +49 (911) 895 - 4646

E-Mail: [email protected]

Thank you for your attention!

35 Tia Portal v11 Scl Rela8 En

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