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Table of Contents

xi

13 Standard Library Elements ..................................................................

318

13.1

String functions..................................................................................

318

13.1.1

LEN...............................................................................................

318

13.1.2

LEFT.............................................................................................

318

13.1.3

RIGHT ..........................................................................................

319

13.1.4

MID...............................................................................................

319

13.1.5

CONCAT......................................................................................

320

13.1.6

INSERT ........................................................................................

321

13.1.7

DELETE .......................................................................................

321

13.1.8

REPLACE.....................................................................................

322

13.1.9

FIND .............................................................................................

322

13.2

Bistable Function Blocks ...................................................................

323

13.2.1

SR .................................................................................................

323

13.2.2

RS .................................................................................................

324

13.2.3

SEMA ...........................................................................................

324

13.3

Trigger................................................................................................

325

13.3.1

R_TRIG ........................................................................................

325

13.3.2

F_TRIG.........................................................................................

327

13.4

Counter...............................................................................................

328

13.4.1

CTU ..............................................................................................

328

13.4.2

CTD ..............................................................................................

329

13.4.3

CTUD ...........................................................................................

329

13.5

Timer..................................................................................................

331

13.5.1

TP..................................................................................................

331

13.5.2

TON ..............................................................................................

332

13.5.3

TOF...............................................................................................

333

14 The UTIL.LIB Library..........................................................................

335

14.1

UTIL.LIB Library..............................................................................

335

14.2

BCD conversion.................................................................................

335

14.2.1 BCD_TO_INT ..............................................................................

335

14.2.2 INT_TO_BCD_ ............................................................................

335

14.3

Bit/byte functions...............................................................................

336

14.3.1

EXTRACT....................................................................................

336

14.3.2

PACK............................................................................................

336

14.3.3

PUTBIT ........................................................................................

336

14.3.4

UNPACK......................................................................................

336

14.4

Mathematical help functions..............................................................

337

14.4.1

DERIVATIVE ..............................................................................

337

14.4.2

INTEGRAL ..................................................................................

337

14.4.3

STATISTICS_INT .......................................................................

338

14.4.4

STATISTICS_REAL....................................................................

338

14.4.5

VARIANCE..................................................................................

338

14.5

Controllers .........................................................................................

339

14.5.1

P ....................................................................................................

339

14.5.2

PD .................................................................................................

339

14.5.3

PID................................................................................................

340

14.6

Signal generators................................................................................

340

14.6.1

BLINK ..........................................................................................

340

14.6.2

GEN ..............................................................................................

341

WAGO-I/O-SYSTEM 759 WAGO-I/O-PRO 32

xii Table of Contents

 

 

14.7

Function manipulators .......................................................................

342

14.7.1

CHARCURVE..............................................................................

342

14.7.2

RAMP_INT ..................................................................................

343

14.7.3

RAMP_REAL...............................................................................

344

14.8

Analogue value processing ................................................................

344

14.8.1

HYSTERESIS...............................................................................

344

14.8.2

LIMITALARM.............................................................................

345

Index

..............................................................................................................

346

The chapters 15 ff. and Appendix are placed in part 2.

WAGO-I/O-SYSTEM 759 WAGO-I/O-PRO 32

Important Comments

1

Legal Principles

 

 

 

1 Important Comments

To ensure fast installation and start-up of the units described in this manual, we strongly recommend that the following information and explanations are carefully read and abided by.

1.1 Legal Principles

1.1.1 Copyright

This manual is copyrighted, together with all figures and illustrations contained therein. Any use of this manual which infringes the copyright provisions stipulated herein, is not permitted. Reproduction, translation and electronic and photo-technical archiving and amendments require the written consent of WAGO Kontakttechnik GmbH. Non-observance will entail the right of claims for damages.

WAGO Kontakttechnik GmbH reserves the right to perform modifications allowed by technical progress. In case of grant of a patent or legal protection of utility patents all rights are reserved by WAGO Kontakttechnik GmbH. Products of other manufacturers are always named without referring to patent rights. The existence of such rights can therefore not be ruled out.

1.1.2 Personnel Qualification

The use of the product detailed in this manual is exclusively geared to specialists having qualifications in PLC programming, electrical specialists or persons instructed by electrical specialists who are also familiar with the valid standards. WAGO Kontakttechnik GmbH declines all liability resulting from improper action and damage to WAGO products and third party products due to non-observance of the information contained in this manual.

1.1.3 Intended Use

For each individual application, the components supplied are to work with a dedicated hardware and software configuration. Modifications are only permitted within the framework of the possibilities documented in the manuals. All other changes to the hardware and/or software and the nonconforming use of the components entail the exclusion of liability on part of WAGO Kontakttechnik GmbH.

Please direct any requirements pertaining to a modified and/or new hardware or software configuration directly to WAGO Kontakttechnik GmbH.

WAGO-I/O-SYSTEM 759 WAGO-I/O-PRO 32

2 Important Comments

Symbols

1.2 Symbols

Danger

Always abide by this information to protect persons from injury.

Warning

Always abide by this information to prevent damage to the device.

Attention

Marginal conditions must always be observed to ensure smooth operation.

ESD (Electrostatic Discharge)

Warning of damage to the components by electrostatic discharge. Observe the precautionary measure for handling components at risk.

Note

Routines or advice for efficient use of the device and software optimization.

More information

References on additional literature, manuals, data sheets and INTERNET pages

WAGO-I/O-SYSTEM 759 WAGO-I/O-PRO 32

Important Comments

3

Font Conventions

 

 

 

1.3 Font Conventions

Italic

Italic

\

END

< >

Courier

1.4 Number Notation

Names of path and files are marked italic i.e.: C:\programs\WAGO-IO-CHECK

Menu items are marked as bold italic i.e.: Save

A backslash between two names marks a sequence of menu items

i.e.: File\New

Press buttons are marked as bold with small capitals i.e.: ENTER

Keys are marked bold within angle brackets i.e.: <F5>

Program code is printed with the font Courier. i.e.: END_VAR

Number Code

Example

Note

Decimal

100

normal notation

 

 

 

Hexadecimal

0x64

C notation

 

 

 

Binary

'100'

Within ',

 

'0110.0100'

Nibble separated with dots

 

 

 

WAGO-I/O-SYSTEM 759 WAGO-I/O-PRO 32