Statement List (STL) for S7-300 and S7-400 Programming - azdoc.tips

Preface, Contents

Bit Logic Instructions 1

Comparison Instructions 2

Conversion Instructions 3

Counter Instructions 4

Data Block Instructions 5

Logic Control Instructions 6

Integer Math Instructions 7

Floating-point Math Instructions 8

Load and Transfer Instructions 9

Program Control Instructions 10

Shift and Rotate Instructions 11

Timer Instructions 12

Word Logic Instructions 13

Accumulator Instructions 14

Appendix

Overview of All STL Instructions A

SIMATIC

Statement List (STL)for S7-300 and S7-400Programming

Reference Manual

This manual is part of the documentation

package with the order number:6ES7810-4CA06-8BR0

Programming Examples B

Index

Edition 12/2002A5E00171232-01

Copyright © Siemens AG 2002 All rights reserved

The reproduction, transmission or use of this document or itscontents is not permitted without express written authority.Offenders will be liable for damages. All rights, including rightscreated by patent grant or registration of a utility model or design,are reserved.

Siemens AGBereich Automation and DrivesGeschaeftsgebiet Industrial Automation SystemsPostfach 4848, D- 90327 Nuernberg

Disclaimer of Liability

We have checked the contents of this manual for agreement withthe hardware and software described. Since deviations cannot beprecluded entirely, we cannot guarantee full agreement. However,the data in this manual are reviewed regularly and any necessarycorrections included in subsequent editions. Suggestions forimprovement are welcomed.

©Siemens AG 2002Technical data subject to change.

Siemens Aktiengesellschaft A5E00171232-01

Safety Guidelines

This manual contains notices intended to ensure personal safety, as well as to protect the products and

connected equipment against damage. These notices are highlighted by the symbols shown below and

graded according to severity by the following texts:

!Dangerindicates that death, severe personal injury or substantial property damage will result if properprecautions are not taken.

!Warningindicates that death, severe personal injury or substantial property damage can result if properprecautions are not taken.

!Cautionindicates that minor personal injury can result if proper precautions are not taken.

Cautionindicates that property damage can result if proper precautions are not taken.

Noticedraws your attention to particularly important information on the product, handling the product, or to aparticular part of the documentation.

Qualified Personnel

Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are

defined as persons who are authorized to commission, to ground and to tag circuits, equipment, and

systems in accordance with established safety practices and standards.

Correct Usage

Note the following:

!Warning

This device and its components may only be used for the applications described in the catalog or the

technical description, and only in connection with devices or components from other manufacturers

which have been approved or recommended by Siemens.

This product can only function correctly and safely if it is transported, stored, set up, and installedcorrectly, and operated and maintained as recommended.

Trademarks

SIMATIC®, SIMATIC HMI® and SIMATIC NET® are registered trademarks of SIEMENS AG.

Third parties using for their own purposes any other names in this document which refer to trademarks might

infringe upon the rights of the trademark owners.

Statement List (STL) for S7-300 and S7-400 Programming

A5E00171232-01 iii

Preface

Purpose

This manual is your guide to creating user programs in the Statement List

programming language STL.

The manual also includes a reference section that describes the syntax and

functions of the language elements of STL.

Basic Knowledge Required

The manual is intended for S7 programmers, operators, and maintenance/service

personnel.

In order to understand this manual, general knowledge of automation technology is

required.

In addition to, computer literacy and the knowledge of other working equipment

similar to the PC (e.g. programming devices) under the operating systems

MS Windows 95, MS Windows 98, MS Windows Millenium, MS Windows NT 4.0

Workstation, MS Windows 2000 Professional or MS Windows XP Professional are

required.

Scope of the Manual

This manual is valid for release 5.2 of the STEP 7 programming software package.

Compliance with Standards

STL corresponds to the "Instruction List" language defined in the International

Electrotechnical Commission's standard IEC 1131-3, although there are substantial

differences with regard to the operations. For further details, refer to the table of

standards in the STEP 7 file NORM_TBL.WRI.

Preface


iv A5E00171232-01

Requirements

To use the Statement List manual effectively, you should already be familiar with

the theory behind S7 programs which is documented in the online help for STEP 7.

The language packages also use the STEP 7 standard software, so you should be

familiar with handling this software and have read the accompanying

documentation.

This manual is part of the documentation package "STEP 7 Reference".

The following table displays an overview of the STEP 7 documentation:

Documentation Purpose Order Number

STEP 7 Basic Information with

• Working with STEP 7 V5.2,

Getting Started Manual

• Programming with STEP 7 V5.2

• Configuring Hardware and

Communication Connections,

STEP 7 V5.2

• From S5 to S7, Converter Manual

Basic information for technical

personnel describing the methods

of implementing control tasks with

STEP 7 and the S7-300/400

programmable controllers.

6ES7810-4CA06-8BA0

STEP 7 Reference with

• Ladder Logic (LAD)/Function Block

Diagram (FBD)/Statement List (STL)

for S7-300/400 manuals

• Standard and System Functions

for S7-300/400

Provides reference information

and describes the programming

languages LAD, FBD, and STL,

and standard and system

functions extending the scope of

the STEP 7 basic information.

6ES7810-4CA06-8BR0

Online Helps Purpose Order Number

Help on STEP 7 Basic information on

programming and configuring

hardware with STEP 7 in the form

of an online help.

Part of the STEP 7

Standard software.

Reference helps on STL/LAD/FBD

Reference help on SFBs/SFCs

Reference help on Organization Blocks

Context-sensitive reference

information.

Part of the STEP 7

Standard software.

Preface


A5E00171232-01 v

Online Help

The manual is complemented by an online help which is integrated in the software.

This online help is intended to provide you with detailed support when using the

software.

The help system is integrated in the software via a number of interfaces:

• The context-sensitive help offers information on the current context, for

example, an open dialog box or an active window. You can open the context-sensitive help via the menu command Help > Context-Sensitive Help, by

pressing F1 or by using the question mark symbol in the toolbar.

• You can call the general Help on STEP 7 using the menu command Help >

Contents or the "Help on STEP 7" button in the context-sensitive help window.

• You can call the glossary for all STEP 7 applications via the "Glossary" button.

This manual is an extract from the "Help on Statement List". As the manual and the

online help share an identical structure, it is easy to switch between the manual

and the online help.

Further Support

If you have any technical questions, please get in touch with your Siemens

representative or agent responsible.

http://www.siemens.com/automation/partner

Training Centers

Siemens offers a number of training courses to familiarize you with the SIMATIC

S7 automation system. Please contact your regional training center or our central

training center in D 90327 Nuremberg, Germany for details:

Telephone: +49 (911) 895-3200.

Internet: http://www.sitrain.com

Preface


vi A5E00171232-01

A&D Technical Support

Worldwide, available 24 hours a day:

Beijing

Nuremberg

Johnson City

Worldwide (Nuremberg)

Technical Support

24 hours a day, 365 days a year

Phone: +49 (0) 180 5050-222

Fax: +49 (0) 180 5050-223

E-Mail: adsupport@

siemens.com

GMT: +1:00

Europe / Africa (Nuremberg)

Authorization

Local time: Mon.-Fri. 8:00 to 17:00

Phone: +49 (0) 180 5050-222

Fax: +49 (0) 180 5050-223

E-Mail: adsupport@

siemens.com

GMT: +1:00

United States (Johnson City)

Technical Support and

Authorization


Phone: +1 (0) 770 740 3505

Fax: +1 (0) 770 740 3699

E-Mail: isd-callcenter@

sea.siemens.com

GMT: -5:00

Asia / Australia (Beijing)

Technical Support and

Authorization


Phone: +86 10 64 75 75 75

Fax: +86 10 64 74 74 74

E-Mail: adsupport.asia@

siemens.com

GMT: +8:00

The languages of the SIMATIC Hotlines and the authorization hotline are generally German and English.

Preface


A5E00171232-01 vii

Service & Support on the Internet

In addition to our documentation, we offer our Know-how online on the internet at:

http://www.siemens.com/automation/service&support

where you will find the following:

• The newsletter, which constantly provides you with up-to-date information on

your products.

• The right documents via our Search function in Service & Support.

• A forum, where users and experts from all over the world exchange their

experiences.

• Your local representative for Automation & Drives via our representatives

database.

• Information on field service, repairs, spare parts and more under "Services".

Preface


viii A5E00171232-01


A5E00171232-01 vii

Contents

1 Bit Logic Instructions 1-1

1.1 Overview of Bit Logic Instructions.....................................................................1-11.2 A And..............................................................................................................1-31.3 AN And Not ....................................................................................................1-41.4 O Or................................................................................................................1-51.5 ON Or Not ......................................................................................................1-61.6 X Exclusive Or................................................................................................1-71.7 XN Exclusive Or Not ......................................................................................1-81.8 O And before Or.............................................................................................1-91.9 A( And with Nesting Open............................................................................1-101.10 AN( And Not with Nesting Open...................................................................1-111.11 O( Or with Nesting Open..............................................................................1-111.12 ON( Or Not with Nesting Open.....................................................................1-121.13 X( Exclusive Or with Nesting Open..............................................................1-121.14 XN( Exclusive Or Not with Nesting Open.....................................................1-131.15 ) Nesting Closed...........................................................................................1-141.16 = Assign .......................................................................................................1-151.17 R Reset ........................................................................................................1-161.18 S Set.............................................................................................................1-171.19 NOT Negate RLO.........................................................................................1-181.20 SET Set RLO (=1) ........................................................................................1-181.21 CLR Clear RLO (=0).....................................................................................1-191.22 SAVE Save RLO in BR Register..................................................................1-201.23 FN Edge Negative........................................................................................1-211.24 FP Edge Positive............................................................................................1-23

2 Comparison Instructions 2-1

2.1 Overview of Comparison Instructions ...............................................................2-12.2 ? I Compare Integer (16-bit)...........................................................................2-22.3 ? D Compare Double Integer (32-bit).............................................................2-32.4 ? R Compare Floating-point Number (32-bit).................................................2-4

3 Conversion Instructions 3-1

3.1 Overview of Conversion Instructions ................................................................3-13.2 BTI BCD to Integer (16-bit) ............................................................................3-23.3 ITB Integer (16-bit) to BCD ............................................................................3-33.4 BTD BCD to Integer (32-bit)...........................................................................3-43.5 ITD Integer (16 Bit) to Double Integer (32-bit) ...............................................3-53.6 DTB Double Integer (32-bit) to BCD ..............................................................3-63.7 DTR Double Integer (32-bit) to Floating-point (32-bit IEEE-FP) ....................3-73.8 INVI Ones Complement Integer (16-bit) ........................................................3-83.9 INVD Ones Complement Double Integer (32-bit) ..........................................3-9

Contents


viii A5E00171232-01

3.10 NEGI Twos Complement Integer (16-bit).....................................................3-103.11 NEGD Twos Complement Double Integer (32-bit).......................................3-113.12 NEGR Negate Floating-point Number (32-bit, IEEE-FP) .............................3-123.13 CAW Change Byte Sequence in ACCU 1-L (16-bit) ....................................3-133.14 CAD Change Byte Sequence in ACCU 1 (32-bit) ........................................3-143.15 RND Round..................................................................................................3-153.16 TRUNC Truncate .........................................................................................3-163.17 RND+ Round to Upper Double Integer ........................................................3-173.18 RND- Round to Lower Double Integer .........................................................3-18

4 Counter Instructions 4-1

4.1 Overview of Counter Instructions ......................................................................4-14.2 FR Enable Counter (Free)..............................................................................4-24.3 L Load Current Counter Value into ACCU 1 ..................................................4-34.4 LC Load Current Counter Value into ACCU 1 as BCD..................................4-44.5 R Reset Counter.............................................................................................4-54.6 S Set Counter Preset Value ...........................................................................4-64.7 CU Counter Up...............................................................................................4-74.8 CD Counter Down ..........................................................................................4-8

5 Data Block Instructions 5-1

5.1 Overview of Data Block Instructions .................................................................5-15.2 OPN Open a Data Block ................................................................................5-25.3 CDB Exchange Shared DB and Instance DB ................................................5-35.4 L DBLG Load Length of Shared DB in ACCU 1.............................................5-35.5 L DBNO Load Number of Shared DB in ACCU 1 ..........................................5-45.6 L DILG Load Length of Instance DB in ACCU 1 ............................................5-45.7 L DINO Load Number of Instance DB in ACCU 1..........................................5-5

6 Logic Control Instructions 6-1

6.1 Overview of Logic Control Instructions .............................................................6-16.2 JU Jump Unconditional ..................................................................................6-36.3 JL Jump to Labels ..........................................................................................6-46.4 JC Jump if RLO = 1........................................................................................6-56.5 JCN Jump if RLO = 0 .....................................................................................6-66.6 JCB Jump if RLO = 1 with BR........................................................................6-76.7 JNB Jump if RLO = 0 with BR........................................................................6-86.8 JBI Jump if BR = 1 .........................................................................................6-96.9 JNBI Jump if BR = 0.....................................................................................6-106.10 JO Jump if OV = 1........................................................................................6-116.11 JOS Jump if OS = 1 .....................................................................................6-126.12 JZ Jump if Zero ............................................................................................6-136.13 JN Jump if Not Zero .....................................................................................6-146.14 JP Jump if Plus.............................................................................................6-156.15 JM Jump if Minus .........................................................................................6-166.16 JPZ Jump if Plus or Zero..............................................................................6-176.17 JMZ Jump if Minus or Zero ..........................................................................6-186.18 JUO Jump if Unordered ...............................................................................6-196.19 LOOP Loop ..................................................................................................6-20

Statement List (STL) for S7-300 and S7-400 Programming - azdoc.tips

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