siemens 840D Programming Manual

SINUMERIK

SINUMERIK 840D sl / 828D Job Planning

Programming Manual

Valid for

Control SINUMERIK 840D sl / 840DE sl SINUMERIK 828D

Software Version CNC software 4.5 SP2

Preface

Flexible NC programming File and Program

Management

Protection zones

Special motion commands Coordinate transformations

(frames)

Transformations

Kinematic chains Collision avoidance with

kinematic chains

Tool offsets

Path traversing behavior

Axis couplings

Synchronized actions

Oscillation

Punching and nibbling

Grinding

Additional functions User stock removal

programs Programming cycles

externally

Tables

Appendix

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19

03/2013

6FC5398-2BP40-3BA1

Legal information Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

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

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

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

Siemens AG

Industry Sector Postfach 48 48 90026 NÜRNBERG GERMANY

Order number: 6FC5398-2BP40-3BA1 Ⓟ 04/2013 Technical data subject to change

Preface

SINUMERIK documentation

The SINUMERIK documentation is organized in the following categories:

● General documentation

● User documentation

● Manufacturer/service documentation

Additional information

You can find information on the following topics at www.siemens.com/motioncontrol/docu:

● Ordering documentation/overview of documentation

● Additional links to download documents

● Using documentation online (find and search in manuals/information)

Please send any questions about the technical documentation (e.g. suggestions for improvement, corrections) to the following address:

docu.motioncontrol@siemens.com

My Documentation Manager (MDM)

Under the following link you will find information to individually compile OEM-specific machine documentation based on the Siemens content:

www.siemens.com/mdm

Training

For information about the range of training courses, refer under:

● www.siemens.com/sitrain

SITRAIN - Siemens training for products, systems and solutions in automation technology

● www.siemens.com/sinutrain

SinuTrain - training software for SINUMERIK

Job Planning Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

Preface

FAQs

You can find Frequently Asked Questions in the Service&Support pages under Product Support. http://support.automation.siemens.com

SINUMERIK

You can find information on SINUMERIK under the following link:

www.siemens.com/sinumerik

Target group

This publication is intended for:

● Programmers

● Project engineers

Benefits

With the programming manual, the target group can develop, write, test, and debug programs and software user interfaces.

Standard scope

This Programming Manual describes the functionality afforded by standard functions. Extensions or changes made by the machine tool manufacturer are documented by the machine tool manufacturer.

Other functions not described in this documentation might be executable in the control. This does not, however, represent an obligation to supply such functions with a new control or when servicing.

Further, for the sake of simplicity, this documentation does not contain all detailed information about all types of the product and cannot cover every conceivable case of installation, operation or maintenance.

Technical Support

You will find telephone numbers for other countries for technical support in the Internet under http://www.siemens.com/automation/service&support

Job Planning

4 Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

Preface

Information on structure and contents

"Fundamentals" and "Job planning" Programming Manual

The description of the NC programming is divided into two manuals:

1. Fundamentals

The "Fundamentals" Programming Manual is intended for use by skilled machine operators with the appropriate expertise in drilling, milling and turning operations. Simple programming examples are used to explain the commands and statements which are also defined according to DIN 66025.

2. Job planning

This "Job planning" Programming Manual is intended for use by technicians with in-depth, comprehensive programming knowledge. By virtue of a special programming language, the SINUMERIK control enables the user to program complex workpiece programs (e.g. for free-form surfaces, channel coordination, ...) and makes programming of complicated operations easy for technologists.

Availability of the described NC language elements

All NC language elements described in the manual are available for the SINUMERIK 840D sl. The availability regarding SINUMERIK 828D can be found in table "Operations: Availability for SINUME

RIK 828D (Page 778)".

Job Planning Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

Preface

Job Planning

6 Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

Preface ...................................................................................................................................................... 3

1 Flexible

1.1 Variables

1.1.1 Sy

1.1.2 Predefined user

1.1.3 Predefined user

1.1.4 Definition of us

1.1.

1.1.6 Attribute: Initi

1.1.7 Attribute: Limi

1.1.8 Attribute: Phys

1.1.9 Attribute: Ac

1.1.10 O

1.1.11

1.1.12

1.1.13 D

1.1.14 E

1.1.15 C

1.1.16

1.2

1.2.1 Indirec

1.2.2 Indirec

1.2.3 Indirec

1.2.4 Indirec

NC programming ........................................................................................................................ 17

5 Redefinition of system variables, user variables, and NC language commands (REDEF).........29

verview of definable and redefinable attributes.........................................................................44

Definition and initialization of array variables (DEF, SET, REP) .................................................45

Definition and initialization of array variables (DEF, SET, REP): Further Information.................49

ata types....................................................................................................................................52

xplicit data type conversions (AXTOINT, INTTOAX).................................................................53

heck availability of a variable (ISVAR) ......................................................................................54

Read attribute values / data type (GETVARPHU, GETVARAP, GETVARLIM,

GETVARDFT, GETVARTYP) ......................................................................................................56

Indirec

......................................................................................................................................17

stem variable............................................................................................................................17

variables: Arithmetic parameters (R).................................................................20

variables: Link variables....................................................................................21

er variables (DEF)................................................................................................24

alization value .........................................................................................................32

t values (LLI, ULI)...................................................................................................35

ical unit (PHU) ......................................................................................................37

cess rights (APR, APW, APRP, APWP, APRB, APWB)..........................................39

t programming ...................................................................................................................61

tly programming addresses...............................................................................................61

tly programming G codes..................................................................................................64

tly programming position attributes (GP) ..........................................................................65

tly programming part program lines (EXECSTRING) .......................................................68

1.3 Arithmetic

1.4 Compari

1.5 Prec

1.6 Variabl

1.7 Priority of the operations

1.8 Pos

1.9 String operations

1.9.1 Ty

1.9.2 Ty

1.9.3 Conc

1.9.4 Conv

1.9.5 Determine length

1.9.6 Search for

1.9.7 Selec

1.9.8 Reading and

1.9.9 Formatting a s

Job Planning Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

pe conversion to STRING (AXSTRING) ..................................................................................78

pe conversion from STRING (NUMBER, ISNUMBER, AXNAME) ..........................................79

functions......................................................................................................................69

son and logic operations ................................................................................................71

ision correction on comparison errors (TRUNC) ..................................................................73

e minimum, maximum and range (MINVAL, MAXVAL and BOUND) ..............................74

..............................................................................................................76

sible type conversions ...........................................................................................................77

..........................................................................................................................78

atenation of strings (<<).......................................................................................................81

ersion to lower/upper case letters (TOLOWER, TOUPPER) ..............................................82

of string (STRLEN)..........................................................................................83

character/string in the string (INDEX, RINDEX, MINDEX, MATCH)..........................83

tion of a substring (SUBSTR) .............................................................................................85

writing of individual characters ...............................................................................85

tring (SPRINT) ......................................................................................................87

Table of contents

1.10 Program jumps and branches..................................................................................................... 96

1.10.1 Return jump to the start of the program (GOTOS)...................................................................... 96

1.10.2

1.10.3 Program branc

Program jumps to jump markers (GOTOB, GOTOF, GOTO, GOTOC)...................................... 97

h (CASE ... OF ... DEFAULT ...)........................................................................ 100

1.11 R

1.12 C

1.12.1 Conditional st

1.12.2 Continuous

1.12.3 Count loop (F

1.12.4

epeat program section (REPEAT, REPEATB, ENDLABEL, P).............................................. 102

heck structures ....................................................................................................................... 108

atement and branch (IF, ELSE, ENDIF) ............................................................. 110

program loop (LOOP, ENDLOOP)......................................................................... 111

OR ... TO ..., ENDFOR) ...................................................................................... 112

Program loop with condition at start of loop (WHILE, ENDWHILE).......................................... 114

1.12.5 Program loop with condition at the end of the loop (RE

1.12.6 Program ex

1.13

1.14 I

Program coordination (INIT, START, WAITM, WAITMC, WAITE, SETM, CLEARM) .............. 116

nterrupt routine (ASUB)............................................................................................................ 121

1.14.1 Func

1.14.2 Creating an interrupt routine

1.14.3

1.14.4

Assign and start interrupt routine (SETINT, PRIO, BLSYNC) .................................................. 124

Deactivating/reactivating the assignment of an interrupt routine (DISABLE, ENABLE)........... 125

1.14.5 Delete ass

1.14.6

1.14.7

Fast retraction from the contour (SETINT LIFTFAST, ALF) ..................................................... 127

Traversing direction for fast retraction from the contour........................................................... 129

1.14.8 Motion s

1.15 Ax

is replacement, spindle replacement (RELEASE, GET, GETD)........................................... 132

1.16 Transfer axi

1.17 A

ctivate machine data (NEWCONF)......................................................................................... 138

ample with nested check structures ....................................................................... 115

tion of an interrupt routine ................................................................................................. 121

..................................................................................................... 123

ignment of interrupt routine (CLRINT) ..................................................................... 126

equence for interrupt routines ..................................................................................... 132

s to another channel (AXTOCHAN)....................................................................... 137

PEAT, UNTIL) .................................... 115

1.18 Write file (WRITE)

1.19 D

1.20 R

1.21 C

1.22

1.23 R

elete file (DELETE)................................................................................................................. 144

ead lines in the file (READ) .................................................................................................... 146

heck for presence of file (ISFILE)........................................................................................... 148

Read out file information (FILEDATE, FILETIME, FILESIZE, FILESTAT, FILEINFO) ............. 150

oundup (ROUNDUP).............................................................................................................. 153

..................................................................................................................... 139

1.24 Subprogram technique

1.24.1 General information

1.24.1.1 Subprogram

1.24.1.2 Subprogram

1.24.1.3 Nes

1.24.1.4 Searc

ting of subprograms............................................................................................................ 156

h path............................................................................................................................... 157

.............................................................................................................................. 154

names................................................................................................................... 155

1.24.1.5 Formal and ac

1.24.1.6 Parameter trans

1.24.2 Definition of a s

1.24.2.1 Subprogram

1.24.2.2

1.24.2.3

1.24.2.4 Sav

Subprogram with call-by-value parameter transfer (PROC)..................................................... 162

Subprogram with call-by-reference parameter transfer (PROC, VAR)..................................... 163

e modal G functions (SAVE)............................................................................................... 166

1.24.2.5 Suppress si

without parameter transfer ................................................................................... 161

ngle block execution (SBLOF, SBLON) ................................................................. 167

................................................................................................................... 154

tual parameters .................................................................................................. 158

fer .................................................................................................................... 159

ubprogram........................................................................................................ 161

.............................................................................................................. 154

Job Planning

8 Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

Table of contents

1.24.2.6 Suppress current block display (DISPLOF, DISPLON, ACTBLOCNO).....................................172

1.24.2.7 Identifying subprograms with preparation (PREPRO) ...............................................................175

1.24.2.8 Subprogram return M17

1.24.2.9 RET s

1.24.2.10 P

1.24.3 Subprogram

1.24.3.1 Subprogram

1.24.3.2 Subprogram

ubprogram return .............................................................................................................177

arameterizable subprogram return jump (RET ...) .............................................................178

call.........................................................................................................................184

call without parameter transfer..............................................................................184

call with parameter transfer (EXTERN).................................................................187

1.24.3.3 Number of program repetitions

1.24.3.4 Modal subprogram

1.24.3.5 Indirec

1.24.3.6

Indirect subprogram call with specification of the calling program part (CALL BLOCK ...

t subprogram call (CALL) ................................................................................................193

.............................................................................................................176

(P) ............................................................................................189

call (MCALL) ...............................................................................................191

TO ...) .........................................................................................................................................194

1.24.3.7

1.24.3.8

1.24.3.9 Extend

1.24.3.10 E

1.24.3.11 E

Indirect call of a program programmed in ISO language (ISOCALL)........................................195

Call subprogram with path specification and parameters (PCALL)...........................................196

search path for subprogram calls (CALLPATH)............................................................197

xecute external subprogram (840D sl) (EXTCALL)............................................................198

xecute external subprogram (828D) (EXTCALL) ...............................................................202

1.25 Macro techni

2 File and Program Mana

2.1 Program memory

2.2 Work

3 P

rotection zones.................................................................................................................................... 217

ing memory (CHANDATA, COMPLETE, INITIAL) ............................................................213

3.1 Defining the protec

3.2 Ac

3.3 Che

tivating/deactivating protection zones (CPROT, NPROT).....................................................220

cking for protection zone violation, working area limitation and software limit switches

que (DEFINE ... AS)..............................................................................................205

gement ............................................................................................................. 209

.......................................................................................................................209

tion zones (CPROTDEF, NPROTDEF) .......................................................217

(CALCPOSI)...............................................................................................................................224

4 S

pecial motion commands..................................................................................................................... 229

4.1 Approaching

coded positions (CAC, CIC, CDC, CACP, CACN) ...............................................229

4.2 Spline interpolation (ASPLINE, BSPLINE, CSPLINE,

ENAT, ETAN, PW, SD, PL) .......................................................................................................230

4.3 Spline group (SPLINEPAT

4.4 NC bl

4.5 Poly

4.6 Settable path refe

ock compression (COMPON, COMPCURV, COMPCAD, COMPOF)..............................241

nomial interpolation (POLY, POLYPATH, PO, PL).............................................................244

rence (SPATH, UPATH)................................................................................250

H).....................................................................................................240

BAUTO, BNAT, BTAN, EAUTO,

4.7 Measuri

4.8 Ax

4.9 Spec

4.10

Feedrate reduction with corner deceleration (FENDNORM, G62, G621) .................................267

4.11 P

ng with touch-trigger probe (MEAS, MEAW) ................................................................253

ial measurement (MEASA, MEAWA, MEAC) (option)...........................................................256

ial functions for OEM users (OMA1 ... OMA5, OEMIPO1, OEMIPO2, G810 ... G829).....266

rogrammable end of motion criteria (FINEA, COARSEA, IPOENDA, IPOBRKA,

ADISPOSA)................................................................................................................................268

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Table of contents

5 Coordinate transformations (frames) ..................................................................................................... 271

5.1 Coordinate transformation via frame variables ......................................................................... 271

5.1.1 Predefin

ed frame variable ($P_IFRAME, $P_BFRAME, $P_PFRAME, $P_ACTFRAME)....... 273

5.2 Frame

5.2.1 As

5.2.2 Reading and

5.2.3 Link

5.2.4 Defining new

5.3 Coarse and fine offs

5.4 Ex

5.5 Preset offs

5.6 Frame

5.7 NCU global frames

5.7.1 Channel

5.7.2 Frames

6 Tran

sformations..................................................................................................................................... 299

variables / assigning values to frames........................................................................... 278

signing direct values (axis value, angle, scale) .................................................................... 278

changing frame components (TR, FI, RT, SC, MI).............................................. 280

ing complete frames ........................................................................................................... 282

frames (DEF FRAME) ......................................................................................... 283

ets (CFINE, CTRANS).............................................................................. 284

ternal zero offset ................................................................................................................... 286

et with PRESETON.................................................................................................. 287

calculation from three measuring points in space (MEAFRAME) ................................. 288

.................................................................................................................... 292

-specific frames ($P_CHBFR, $P_UBFR) ................................................................... 293

active in the channel .................................................................................................... 294

6.1 General programming of trans

6.1.1 Orientation mov

6.1.2 Ov

erview of orientation transformation TRAORI....................................................................... 305

6.2 Three, four and fiv

6.2.1 General relationships

6.2.2 Three, four and fiv

6.2.3 Variant

s of orientation programming and initial setting (ORIRESET)....................................... 311

ements for transformations.............................................................................. 301

e axis transformation (TRAORI) .................................................................. 307

of universal tool head............................................................................. 307

e axis transformation (TRAORI) .................................................................. 310

6.2.4 Programming the tool orientation (A..., B

6.2.5 Face milli

6.2.6 Referenc

ng (A4, B4, C4, A5, B5, C5)....................................................................................... 319

e of the orientation axes (ORIWKS, ORIMKS):.......................................................... 321

6.2.7 Programming orientation ax

ORIVIRT1, ORIVIRT2).............................................................................................................. 323

6.2.8

Orientatio

n programming along the peripheral surface of a taper (ORIPLANE,

ORICONCW, ORICONCCW, ORICONTO, ORICONIO).......................................................... 326

6.2.9

Specification

of orientation for two contact points (ORICURVE, PO[XH]=, PO[YH]=,

PO[ZH]=) ................................................................................................................................... 329

formation types ......................................................................... 299

..., C..., LEAD, TILT) ................................................. 313

es (ORIAXES, ORIVECT, ORIEULER, ORIRPY, ORIRPY2,

6.3

6.4 Rotation

6.5 Orientations

Orientation polynomial

s of the tool orientation (ORIROTA, ORIROTR, ORIROTT, ORIROTC, THETA)....... 333

relative to the path ................................................................................................ 336

6.5.1 Orientation types relative to the path

6.5.2 Rotation of the tool orient

s (PO[angle], PO[coordinate])............................................................... 331

........................................................................................ 336

ation relative to the path (ORIPATH, ORIPATHS, angle of

rotation) ..................................................................................................................................... 337

6.5.3

Interpolatio

6.5.4 Smoothing of

6.6 Comp

6.7 Smoothing th

6.8 Kinematic

6.8.1 Milling on turned parts (TRANSMIT):

Job Planning

n of the tool rotation relative to the path (ORIROTC, THETA)................................ 339

orientation characteristic (ORIPATHS A8=, B8=, C8=) ...................................... 341

ression of the orientation (COMPON, COMPCURV, COMPCAD).................................. 342

e orientation characteristic (ORISON, ORISOF) ................................................. 344

transformation .......................................................................................................... 347

........................................................................................ 347

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Table of contents

6.8.2 Cylinder surface transformation (TRACYL) ...............................................................................349

6.8.3 Inclined axis (TRAANG).............................................................................................................357

6.8.4 Inc

lined axis programming (G5, G7)..........................................................................................360

6.9 Cartes

ian PTP travel..................................................................................................................362

6.9.1 PTP for TRANSMIT

onstraints when selecting a transformation.............................................................................370

eselecting a transformation (TRAFOOF) ................................................................................371

hained transformations (TRACON, TRAFOOF)......................................................................371

7 K

6.10 C

6.11 D

6.12 C

inematic chains.................................................................................................................................... 375

7.1 Deletion of components (DELOBJ)

7.2 Index determi

8 Collision a

voidance with kinematic chains ............................................................................................. 379

8.1 Check

8.2 Req

uesting a recalculation of the collision model (PROTA)......................................................380

8.3 Setting the protec

8.4 Determining the c

9 Tool

offsets............................................................................................................................................ 385

9.1 Offs

et memory............................................................................................................................385

9.2 Additiv

9.2.1 Selec

9.2.2 Specify

9.2.3 Delete additive offs

for collision pair (COLLPAIR) .........................................................................................379

e offsets...........................................................................................................................388

ting additive offsets (DL) ...................................................................................................388

nation by means of names (NAMETOINT) ..........................................................377

tion zone status (PROTS)..............................................................................382

learance of two protection zones (PROTD)...................................................383

wear and setup values ($TC_SCPxy[t,d], $TC_ECPxy[t,d]).........................................389

ets (DELDL).................................................................................................390

...................................................................................................................366

............................................................................................375

9.3 Special handl

9.3.1 Mirroring of tool lengths

9.3.2 Wear s

9.3.3 Coo

rdinate system of the active machining operation (TOWSTD, TOWMCS, TOWWCS,

ing of tool offsets ..................................................................................................391

.............................................................................................................393

ign evaluation .................................................................................................................394

TOWBCS, TOWTCS, TOWKCS)...............................................................................................395

9.3.4

Tool length a

9.4 Online tool of

9.5 Ac

tivate 3D tool offsets (CUT3DC..., CUT3DF...)......................................................................404

9.5.1 Activating 3

9.5.2 3D tool offset

9.5.3 3D tool offset

9.5.4 3D tool offset

9.5.5 3D tool offset

9.5.6 3D tool offset

9.5.7 3D tool offset

9.6 Tool ori

9.7 Free assignm

9.7.1 Free a

9.7.2 Free a

9.7.3 Free a

Job Planning Programming Manual, 03/2013, 6FC5398-2BP40-3BA1

nd plane change....................................................................................................398

fset (PUTFTOCF, FCTDEF, PUTFTOC, FTOCON, FTOCOF)............................399

D tool offsets (CUT3DC, CUT3DF, CUT3DFS, CUT3DFF, ISD)............................404

peripheral milling, face milling .............................................................................406

Tool shapes and tool data for face milling...........................................................408

Offset on the path, path curvature, insertion depth (CUT3DC, ISD)...................409

Inside/outside corners and intersection procedure (G450/G451) .......................412

3D circumferential milling with limitation surfaces...............................................413

: Taking into consideration a limitation surface (CUT3DCC, CUT3DCCD)..........414

entation (ORIC, ORID, OSOF, OSC, OSS, OSSE, ORIS, OSD, OST).........................418

ent of D numbers, cutting edge numbers.............................................................424

ssignment of D numbers, cutting edge numbers (CE address) ......................................424

ssignment of D numbers: Checking D numbers (CHKDNO)...........................................424

ssignment of D numbers: Rename D numbers (GETDNO, SETDNO)...........................425

Table of contents

9.7.4 Free assignment of D numbers: Determine T number to the specified D number

(GETACTTD) ............................................................................................................................ 426

9.7.5 Free ass

ignment of D numbers: Invalidate D numbers (DZERO) ............................................ 427

9.8 Toolholder k

9.9 Tool length

TCOFRX, TCOFRY, TCOFRZ)................................................................................................. 433

9.10 O

9.11

10 Path trav

10.1

nline tool length compensation (TOFFON, TOFFOF)............................................................ 436

Cutting data modification for tools that can be rotated (CUTMOD) .......................................... 439

ersing behavior........................................................................................................................ 445

Tangential control (TANG, TANGON, TANGOF, TLIFT, TANGDEL)....................................... 445

10.2 Feedrate charac

10.3 Accel

10.3.1 Accel

10.3.2

10.3.3

eration behavior................................................................................................................ 457

eration mode (BRISK, BRISKA, SOFT, SOFTA, DRIVE, DRIVEA) ................................ 457

Influence of acceleration on following axes (VELOLIMA, ACCLIMA, JERKLIMA)................... 459

Activation of technology-specific dynamic values (DYNNORM, DYNPOS, DYNROUGH,

DYNSEMIFIN, DYNFINISH) ..................................................................................................... 461

10.4

Traversing wi

10.5 Programmable c

10.6

Program sequence with preprocessing memory (STOPFIFO, STARTFIFO, FIFOCTRL,

STOPRE) .................................................................................................................................. 466

10.7

Program sections that can be conditionally interrupted (DELAYFSTON, DELAYFSTOF)....... 469

10.8 Prevent program pos

inematics ............................................................................................................... 427

compensation for orientable toolholders (TCARR, TCOABS, TCOFR,

teristic (FNORM, FLIN, FCUB, FPO).............................................................. 452

th feedforward control (FFWON, FFWOF) .......................................................... 463

ontour accuracy (CPRECON, CPRECOF)..................................................... 464

ition for SERUPRO (IPTRLOCK, IPTRUNLOCK)................................... 474

10.9

Repositioning to the contour (REPOSA, REPOSL, REPOSQ, REPOSQA, REPOSH,

REPOSHA, DISR, DISPR, RMIBL, RMBBL, RMEBL, RMNBL)............................................... 476

10.10 I

10.10.1 Percentage jerk

10.10.2 Percentage veloc

nfluencing the motion control ................................................................................................... 484

correction (JERKLIM) ..................................................................................... 484

ity correction (VELOLIM)............................................................................... 486

10.10.3 Program example for JE

Programmable contour/orientation tolerance (CTOL, OTOL, ATOL) ....................................... 488

olerance for G0 motion (STOLF) ............................................................................................ 492

lock change behavior with active coupling (CPBC)................................................................ 494

11 A

10.11

10.12 T

10.13 B

xis couplings........................................................................................................................................ 495

11.1 Coupled motion (TRAILON, TRAILOF)

11.2 Curv

11.2.1 Define

11.2.2 Check

11.2.3 Delete

11.2.4

11.2.5

e tables (CTAB)................................................................................................................. 500

curve tables (CTABDEF, CATBEND)............................................................................ 501

for presence of curve table (CTABEXISTS) .................................................................. 507

curve tables (CTABDEL) ............................................................................................... 507

Locking curve tables to prevent deletion and overwriting (CTABLOCK, CTABUNLOCK) ....... 509

Curve tables: Determine table properties (CTABID, CTABISLOCK, CTABMEMTYP,

CTABPERIOD).......................................................................................................................... 510

11.2.6

Read curve table values (CTABTSV, CTABTEV, CTABTSP, CTABTEP, CTABSSV,

CTABSEV, CTAB, CTABINV, CTABTMIN, CTABTMAX)......................................................... 512

RKLIM and VELOLIM......................................................................... 488

..................................................................................... 495

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11.2.7 Curve tables: Check use of resources (CTABNO, CTABNOMEM, CTABFNO, CTABSEGID, CTABSEG, CTABFSEG, CTABMSEG, CTABPOLID, CTABPOL,

CTABFPOL, CTABMPOL).........................................................................................................517

11.3

ial master value coupling (LEADON, LEADOF) ....................................................................518

11.4 Elec

11.4.1 Defining an electronic

11.4.2

11.4.3 Switching-i

11.4.4

11.4.5 Rotational feedrate

11.5 Sy

11.5.1

tronic gear (EG) ..................................................................................................................523

gear (EGDEF) ........................................................................................524

Switch-in the electronic gearbox (EGON, EGONSYN, EGONSYNE).......................................525

n the electronic gearbox (EGOFS, EGOFC) ............................................................529

Deleting the definition of an electronic gear (EGDEL)...............................................................530

(G95) / electronic gear (FPR).....................................................................530

nchronous spindle..................................................................................................................531

Synchronous spindle: Programming (COUPDEF, COUPDEL, COUPON, COUPONC,

COUPOF, COUPOFS, COUPRES, WAITC).............................................................................531

Generic

Master/slave coupling (MASLDEF, MASLDEL, MASLON, MASLOF, MASLOFS) ...................549

12 S

11.6

11.7

ynchronized actions............................................................................................................................. 553

12.1 Definition of a s

13 Oscillation

.............................................................................................................................................. 555

coupling (CP...).............................................................................................................541

ynchronized action ............................................................................................553

13.1 Asynchronous oscillation (OS, OSP1, OSP2, OST1, OST2, OSCTRL, OSNS

OSB) ..........................................................................................................................................555

13.2 Oscillation

14 P

unching and nibbling ........................................................................................................................... 569

14.1 Ac

14.1.1 Punc

tivation, deactivation ..............................................................................................................569

controlled by synchronized actions (OSCILL)..........................................................560

hing and nibbling on or off (SPOF, SON, PON, SONS, PONS, PDELAYON,

PDELAYOF, PUNCHACC) ........................................................................................................569

C, OSE,

14.2

Automatic

14.2.1 Path s

14.2.2 Path s

15 Gri

nding................................................................................................................................................. 581

15.1

Grinding-specific tool monitoring in the part program (TMON, TMOF)......................................581

16 Additional fun

16.1 Ax

is functions (AXNAME, AX, SPI, AXTOSPI, ISAXIS, AXSTRING, MODAXVAL) .................583

16.2 Repl

16.3 Ax

is container (AXCTSWE, AXCTSWED, AXCTSWEC) ..........................................................590

16.4 Wait for valid

16.5 Programmable parameter

16.6 Check

16.7

Interactively call the window from the part program (MMC) ......................................................598

16.8 Program runtime/part c

path segmentation ....................................................................................................574

egmentation for path axes ...............................................................................................577

egmentation for single axes.............................................................................................579

ctions................................................................................................................................ 583

aceable geometry axes (GEOAX)......................................................................................585

axis position (WAITENC) .....................................................................................592

set changeover (SCPARA)..............................................................593

scope of NC language present (STRINGIS)...................................................................594

ounter....................................................................................................600

16.8.1 Program runtime/part count

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er (overview) ..................................................................................600

Table of contents

16.8.2 Program runtime ....................................................................................................................... 600

16.8.3 Workpiece counter .................................................................................................................... 604

16.9 Process

16.10 Alarms

16.11 E

xtended stop and retract (ESR) .............................................................................................. 616

16.11.1 NC-controlled ESR

16.11.1.1

DataShare - output to an external device/file (EXTOPEN, WRITE, EXTCLOSE)...... 605

(SETAL) ........................................................................................................................ 614

.................................................................................................................... 617

NC-controlled retraction (POLF, POLFA, POLFMASK, POLFMLIN) .................................. 617

16.11.1.2 NC-controlled stopping

16.11.2 Driv

e-integrated ESR ................................................................................................................ 622

16.11.2.1 Configuring drive-integrated stoppi

16.11.2.2 Configuring driv

17 Use

r stock removal programs................................................................................................................ 625

17.1 Supporting function

e-integrated retraction (ESRS) ................................................................... 623

s for stock removal..................................................................................... 625

17.2 Generate contour table (CONTP

17.3 Generate coded c

17.4

17.5

17.6 Calc

Determine point of intersection between two contour elements (INTERSEC) ......................... 635

Execute the contour elements of a table block-by-block (EXECTAB)...................................... 637

ulate circle data (CALCDAT) ............................................................................................. 638

17.7 Deac

18 P

rogramming cycles externally.............................................................................................................. 641

18.1 Tec

hnology cycles..................................................................................................................... 641

18.1.1 Introduc

18.1.2 Drilling, centering -

tivate contour preparation (EXECUTE) ............................................................................ 640

tion ............................................................................................................................... 641

ontour table (CONTDCON) .......................................................................... 632

CYCLE81 ................................................................................................... 642

18.1.3 Drilling, counterboring - CY

18.1.4 Reaming -

18.1.5 Deep-hole drilling - CY

18.1.6 Boring -

CYCLE85................................................................................................................. 644

CLE83................................................................................................... 645

CYCLE86..................................................................................................................... 648

18.1.7 Tapping without compensating chuck -

18.1.8 Tapping with

compensating chuck - CYCLE840....................................................................... 652

18.1.9 Thread milling - CYCLE78

18.1.10 F

18.1.11 R

18.1.12 G

18.1.13 C

18.1.14 Face milling - CYCLE61

18.1.15 M

18.1.16 Milling a ci

18.1.17 R

18.1.18 C

reely programmable positions - CYCLE802 ........................................................................... 656

ow of holes - HOLES1............................................................................................................ 657

rid or frame - CYCLE801........................................................................................................ 658

ircle of holes - HOLES2.......................................................................................................... 659

............................................................................................................ 661

illing a rectangular pocket - POCKET3 .................................................................................. 662

rcular pocket - POCKET4......................................................................................... 665

ectangular spigot milling - CYCLE76...................................................................................... 667

ircular spigot milling - CYCLE77............................................................................................. 669

18.1.19 Multiple-edge - CYCLE79

18.1.20 Longitudinal

18.1.21 C

ircumferential slot - SLOT2..................................................................................................... 675

slot - SLOT1.......................................................................................................... 673

18.1.22 Mill open slot - CYCLE899

18.1.23 E

18.1.24 T

18.1.25 E

longated hole - LONGHOLE................................................................................................... 679

hread milling - CYCLE70 ........................................................................................................ 681

ngraving cycle - CYCLE60...................................................................................................... 683

........................................................................................................ 621

ng (ESRS)..................................................................... 622

RON) ..................................................................................... 626

CLE82............................................................................................ 643

CYCLE84 ................................................................... 649

........................................................................................................ 654

......................................................................................................... 671

........................................................................................................ 677

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18.1.26 Contour call - CYCLE62.............................................................................................................685

18.1.27 Path milling - CYCLE72 .............................................................................................................685

18.1.28 P

18.1.29 Milling a contour pocket -

18.1.30 S

18.1.31 G

18.1.32 U

18.1.33 Thread turning - CYCLE99

18.1.34 T

18.1.35 C

18.1.36 C

18.1.37 C

18.1.38 S

18.1.39 H

redrilling a contour pocket - CYCLE64....................................................................................688

CYCLE63..........................................................................................689

tock removal - CYCLE951.......................................................................................................692

roove - CYCLE930 ..................................................................................................................694

ndercut forms - CYCLE940 .....................................................................................................696

........................................................................................................699

hread chain - CYCLE98...........................................................................................................702

ut-off - CYCLE92 .....................................................................................................................705

ontour cutting - CYCLE95 .......................................................................................................706

ontour grooving - CYCLE952 ..................................................................................................708

wiveling - CYCLE800...............................................................................................................712

igh Speed Settings - CYCLE832.............................................................................................714

19 Tables

19.1 Operations

19.2 Operations: Availability for

19.3 Currently set language in t

.................................................................................................................................................... 717

..................................................................................................................................717

SINUMERIK 828D ..........................................................................778

he HMI .............................................................................................802

A Appendix.....................................................

A.1 List of abbreviations

A.2 Doc

lossary ................................................................................................................................................ 813

ndex...................................................................................................................................................... 835

umentation overview............................................................................................................812

...................................................................................................................803

........................................................................................... 803

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1.1 Variables

The use of variables, especially in conjunction with arithmetic functions and check structures, enables part programs and cycles to be set up with extremely high levels of flexibility. The system provides three different types of variables.

● System variables

System variables are variables with a fixed predefined meaning; they are defined in the system and made available to the user. They are also read and written by the system software. Example: Machine data

The meaning of a system variable is permanently set by the system. However, minor modifications can be made to the properties by the user in the form of redefinition. See "Redefinition of system variables, user variables, and NC language (Page 29)"

● User variable

User variables are variables whose meaning is not known to the system; they are not evaluated by the system. The meaning is defined exclusively by the user.

User variables are subdivided into:

ands (REDEF)

comm

– Predefined user variables

Predefined user variables are variables which have already been defined in the system and whose number simply has to be parameterized by the user via specific machine data. The user can make significant changes to the properties of these variables. See "Redefinition of system variables, user variables, and NC language comm

ands (REDEF) (Page 29)".

– User-defined

User-defined variables are variables which are defined exclusively by the user and are not created by the system until runtime. Their number, data type, visibility, and all other properties are defined exclusively by the user.

See "Definition of user variables (DEF) (Page 24)"

1.1.1 System variable

System variables are variables which are predefined in the system and enable access to the current parameter settings of the control, as well as to machine, control, and process states, in part programs and cycles.

variables

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1.1 Variables

Preprocessing variables

Preprocessing variables are system variables that are read and written in the context of preprocessing; in other words, at the point in time at which the part program block in which the system variable is programmed is interpreted. Preprocessing variables do not trigger preprocessing stops.

Main run variables

Main run variables are system variables which are read and written in the context of the main run; in other words at the point in time at which the part program block in which the system variable is programmed is executed. The following are main run variables:

● System variables which can be programmed in synchronized actions (read/write)

● System variables which can be programmed in the part program and trigger preprocessing stops (read/write)

● System variables which can be programmed in the part program and whose value is calculated during preprocessing but not written until the main run (main run synchronized: write only)

Prefix system

In order that they can be specifically identified, the names of system variables are usually preceded by a prefix comprising the $ sign followed by one or two letters and an underscore.

$ + 1st letter Meaning: Data type System variables which are read/written during preprocessing $M Machine data 1) $S Setting data, protection zones 1) $T Tool management data $P Programmed values $C Cycle variables of ISO envelope cycles $O Option data R R-parameters (arithmetic parameters) 2) System variables which are read/written during the main run $$M Machine data 1) $$S Setting data 1) $A Current main run data $V Servo data $R R-parameters (arithmetic parameters) 2)

Whether machine and setting data is treated as preprocessing or main run variables depends on whether they are written with one or two $ characters. The notation is freely selectable for the specific application.

When an R-parameter is used in the part program/cycle as a preprocessing variable, the prefix is omitted, e.g. R10. When it is used in a synchronized action as a main run variable, a $ sign is written as a prefix, e.g. $R10.

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1.1 Variables

2nd letter Meaning: Visibility N NCK-global variable (NCK) C Channel-specific variable (Channel) A Axis-specific variable (Axis)

Supplementary conditions

Exceptions in the prefix system

The following system of variables deviate from the prefix system specified above:

● $TC_...: Here, the 2nd letter C does not refer to channel-specific system variables but to toolholder-specific system variables (TC= tool carrier).

● $P_ ...: Channel-specific system variables

Use of machine and setting data in synchronized actions

When machine and setting data is used in synchronized actions, the prefix can be used to define whether the machine or setting data will be read/written synchronous to the preprocessing run or the main run.

References

If the data remains unchanged during machining, it can be read synchronous to the preprocessing run. For this purpose, the machine or setting data prefix is written with a $ sign:

ID=1 WHENEVER $AA_IM[z] < $SA_OSCILL_REVERSE_POS2[Z]–6 DO $AA_OVR[X]=0

If the data changes during machining, it must be read/written synchronous to the main run. For this purpose, the machine or setting data prefix is written with two $ signs:

ID=1 WHENEVER $AA_IM[z] < $$SA_OSCILL_REVERSE_POS2[Z]–6 DO $AA_OVR[X]=0

Note Writing machine data

When writing an item of machine or setting data, it is important to ensure that the access level which is active when the part program/cycle is executed permits write access and that the data is set to take "IMMEDIATE" effect.

A list of the properties of all system variables appears in:

Parameter Manual, System Variables

1.1.2 Predefined user variables: Arithmetic parameters (R)

Function

Arithmetic parameters or R parameters are predefined user variables with the designation R, defined as an array of the REAL data type. For historical reasons, notation both with array index, e.g.

R[10], and without array index, e.g. R10, is permitted for R parameters.

Syntax

Meaning

When using synchronized actions, the $ sign must be included as a prefix, e.g.

$R10.

When used as a preprocessing variable:

R<n> R[<expression>]

When used as a main run variable:

$R<n> $R[<expression>]

R: Identifier when used as a preprocessing variable, e.g. in the part program $R: Identifier when used as a main run variable, e.g. in synchronized actions

Type: REAL Range of values: For a non-exponential notation:

± (0.000 0001 ... 9999 9999) Note:

A maximum of 8 decimal places are permitted.

For an exponential notation:

± (1*10

-300

... 1*10

+300

)

Note:

 Notation: <Mantisse>EX<exponent> e.g. 8.2EX-3  A maximum of 10 characters are permitted including

sign and decimal point.

<n>:

Number of the R parameter Type: INT Range of values: 0 - MAX_INDEX

Note MAX_INDEX is calculated from the parameterized number of R-parameters: MAX_INDEX = (MD28050 $MN_MM_NUM_R_PARAM) - 1

<expression>: Array index

Any expression can be used as an array index, as long as the result of the expression can be converted to the INT data type (INT, REAL, BOOL, CHAR).

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1.1 Variables

Example

Assignments to R-parameters and use of R-parameters in mathematical functions:

Program code Comment

R0=3.5678 ; Assignment in preprocessing

R[1]=-37.3 ; Assignment in preprocessing

R3=-7 ; Assignment in preprocessing

$R4=-0.1EX-5 ; Assignment in main run: R4 = -0.1 * 10^-5

$R[6]=1.874EX8 ; Assignment in main run: R6 = 1.874 * 10^8

R7=SIN(25.3) ; Assignment in preprocessing

R[R2]=R10 ; Indirect addressing using R-parameter

R[(R1+R2)*R3]=5 ; Indirect addressing using math. expression

X=(R1+R2) ; Traverse axis X to the position resulting from the

sum of R1 and R2

Z=SQRT(R1*R1+R2*R2) ; Traverse axis Z to the square root position (R1^2 +

R2^2)

1.1.3 Predefined user variables: Link variables

Function

Link variables can be used in the context of the "NCU-Link" function for cyclic data exchange between NCUs which are linked on a network. They facilitate data-format-specific access to the link variables memory. The link variables memory is defined both in terms of size and data structure on a system-specific basis by the user/machine manufacturer.

Link variables are system-global user variables which can be read and written in part programs and cycles by all NCUs involved in a link if link communication has been configured. Unlike global user variables (GUD), link variables can also be used in synchronized actions.

On systems without an active NCU link, link variables can be used locally on the controller as additional global user variables alongside global user variables (GUD).

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1.1 Variables

Syntax

$A_DLB[<index>] $A_DLW[<index>] $A_DLD[<index>] $A_DLR[<index>]

Meaning

$A_DLB:

$A_DLW:

$A_DLD:

$A_DLR:

<index>:

Link variable for BYTE data format (1 byte) Data type: UINT Range of values: 0 ... 255 Link variable for WORD data format (2 bytes) Data type: INT Range of values: -32768 ... 32767 Link variable for DWORD data format (4 bytes) Data type: INT Range of values: -2147483648 ... 2147483647 Link variable for REAL data format (8 bytes) Data type: REAL Range of values: ±(2.2*10

-308

… 1.8*10

+308

) Address index in bytes, counted from the start of the link variable memory Data type: INT Range of values: 0 - MAX_INDEX

Note  MAX_INDEX is calculated from the parameterized size

of the link variables memory: MAX_INDEX = (MD18700 $MN_MM_SIZEOF_LINKVAR_DATA) - 1

 Only indices may be programmed, so that the bytes

addressed in the link variables memory are located on a data format limit ⇒ Index = n * bytes, where n = 0, 1, 2, etc.

$A_DLB[i]: i = 0, 1, 2, ...

– –

$A_DLW[i]: i = 0, 2, 4, ...

–

$A_DLD[i]: i = 0, 4, 8, ...

–

$A_DLR[i]: i = 0, 8, 16, ...

Example

An automation system contains 2 NCUs (NCU1 and NCU2). Machine axis AX2 is connected to NCU1. It is traversed as a link axis of NCU2.

NCU1 writes the actual current value ($VA_CURR) of axis AX2 cyclically to the link variables memory. NCU2 reads the actual current value transmitted via link communication cyclically and displays alarm 61000 if the limit value is exceeded.

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1.1 Variables

The data structure in the link variables memory is illustrated in the following figure. The actual current value is transmitted in the REAL value.

/LQNYDULDEOHVPHPRU\ 0'01B00B6,=(2)B/,1.9$5B'$7$ 

,QGH[ 

%<7( %<7( :25' ':25'





':25' ':25'

5($/

NCU1 NCU1 uses link variable $A_DLR[ 16 ] to write the actual current value of axis AX2 to the link variables memory cyclically in the interpolation cycle in a static synchronized action.

Program code

N111 IDS=1 WHENEVER TRUE DO $A_DLR[16]=$VA_CURR[AX2]

NCU2 NCU2 uses link variable $A_DLR[ 16 ] to read the actual current value of axis AX2 from the link variables memory cyclically in the interpolation cycle in a static synchronized action. If the actual current value is greater than 23.0 A, alarm 61000 is displayed.

Program code

N222 IDS=1 WHEN $A_DLR[16] > 23.0 DO SETAL(61000)

1.1.4 Definition of user variables (DEF)

Function

The DEF command is used to define user-specific variables and assign values to them. To set them apart from system variables, these are called user-defined variables or user variables (user data).

According to the range of validity (in other words, the range in which the variable is visible) there are the following categories of user variable:

● Local user variables (LUD)

Local user variables (LUD) are variables defined in a part program which is not the main program at the time of execution. They are created when the part program is called and deleted at the end of the part program or when the NC is reset. Local user variables can only be accessed within the part program in which they are defined.

● Program-global user variables (PUD)

Program-global user variables (PUD) are user variables defined in a part program used as the main program. They are created when the part program starts up and deleted at the end of the part program or when the NC is reset. It is possible to access PUD in the main program and in all subprograms of the main program.

Syntax

● Global user variables (GUD)

Global user variables (GUD) are NC or channel-global variables which are defined in a data block (SGUD, MGUD, UGUD, GUD4 to GUD9) and are retained following shutdown and restart. GUD can be accessed in all part programs.

User variables must be defined before they can be used (read/write). The following rules must be observed in this context:

● GUD have to be defined in a definition file, e.g. _N_DEF_DIR/_M_SGUD_DEF.

● PUD and LUD have to be defined in a definition section of the part program.

● The data must be defined in a dedicated block.

● Only one data type may be used for each data definition.

● Several variables of the same data type can be defined for each data definition.

LUD and PUD

DEF <type> <phys_unit> <limit values> <name>[<value_1>, <value_2>, <value_3>]=<init_value>

GUD

DEF <range> <pp_stop> <access_rights> <type> <phys_unit> <limit values> <name>[<value_1>, <value_2>, <value_3>]=<init_value>

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1.1 Variables

Meaning

DEF: Command for defining GUD, PUD, LUD user variables <range>:

<PP_stop>:

<access rights>:

<type>:

<phys_unit>:

<limit values>:

Range of validity, only relevant for GUD:

NCK: NC-global user variable CHAN: Channel-global user variable

Preprocessing stop, only relevant for GUD (optional)

SYNR: Preprocessing stop when reading SYNW: Preprocessing stop when writing SYNRW: Preprocessing stop when reading/writing

Protection level for reading/writing GUD via part program or OPI (optional)

APRP <protection level>: Read: Part program APWP <protection level>: Write: Part program APRB <protection level>: Read: OPI APWB <protection level>: Write: OPI

<protection level>: Range of values: 0 ... 7 See "Attribute: Access rights (APR, APW, APRP, APWP, APRB,

APWB) (Page 39)" Data type:

INT: Integer with sign REAL: Real number (LONG REAL to IEEE) BOOL: Truth value TRUE (1)/FALSE (0) CHAR: ASCII character STRING[<MaxLength>]: Character string of a defined length AXIS: Axis/spindle identifier FRAME: Geometric data for a static coordinate

transformation See "Data types (Page 52)" Physical unit (optional)

PHU <unit>: Physical unit

See "Attribute: Physical unit (PHU) (Page 37)" Lower/upp

LLI <limit value>: Lower limit value (lower limit) ULI <limit value>: Upper limit value (upper limit)

er limit value (optional)

See "Attribute: Limit values (LLI, ULI) (Page 35)"

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1.1 Variables

<name>

: Name of variable

Note

 Maximum 31 characters  The first two characters must be a letter and/or an underscore.  The $ sign is reserved for system variables and must not be

used.

[<value_1>, <value_2>,

<value_3>]

Specification of array sizes for 1- to max. 3-dimensional array variables (optional)

For the Initialization of array variables see "Definition and initialization of array

<init_value>: Initialization value (optional)

variables (DEF, SET, REP) (Page 45)"

See "Attribute: Initialization value (Page 32)" For the Initializa

initialization of array

tion of array variables see "Definition and

variables (DEF, SET, REP) (Page 45)"

Examples

Example 1: Definition of user variables in the data block for machine manufacturers

Program code Comment

%_N_MGUD_DEF ; GUD block: Machine manufacturer

$PATH=/_N_DEF_DIR

DEF CHAN REAL PHU 24 LLI 0 ULI 10 STROM_1, STROM_2

;Description

;Definition of two GUD items: STROM_1, STROM_2

;Range of validity: Throughout the channel

;Data type: REAL

PP stop: Not programmed => default value = no PP stop

;Physical unit: 24 = [A]

;Limit values: Low = 0.0, high = 10.0

;Access rights: Not programmed => default value = 7 = key-operated switch position 0

;Initialization value: Not programmed => default value = 0.0

DEF NCK REAL PHU 13 LLI 10 APWP 3 APRP 3 APWB 0 APRB 2 ZEIT_1=12, ZEIT_2=45

;Description

;Definition of two GUD items: ZEIT_1, ZEIT_2

;Range of validity: Throughout the NCK

;Data type: REAL

PP stop: Not programmed => default value = no PP stop

;Physical unit: 13 = [s]

;Limit values: low = 10.0, high = not programmed => upper definition range limit

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1.1 Variables

Program code Comment

;Access rights:

;Part program: Write/read = 3 = end user

;OPI: Write = 0 = Siemens, read = 3 = end user

;Initialization value: ZEIT_1 = 12.0, ZEIT_2 = 45.0

DEF NCK APWP 3 APRP 3 APWB 0 APRB 3 STRING[5] GUD5_NAME = "COUNTER"

;Description

;Definition of one GUD item: GUD5_NAME

;Range of validity: Throughout the NCK

;Data type: STRING, max. 5 characters

PP stop: Not programmed => default value = no PP stop

;Physical unit: Not programmed => default value = 0 = no phys. unit

;Limit values: Not programmed => definition range limits: low = 0, high = 255

;Access rights:

;Part program: Write/read = 3 = end user

;OPI: Write = 0 = Siemens, read = 3 = end user

;Initialization value: "COUNTER"

M30

Example 2: Global program and local user variables (PUD/LUD)

Program code Comment

PROC MAIN ;Main program

DEF INT VAR1 ;PUD definition

...

SUB2 ;Subprogram call

...

M30

Program code Comment

PROC SUB2 ;Subprogram SUB2

DEF INT VAR2 ;LUD DEFINITION

...

IF (VAR1==1) ;Read PUD

VAR1=VAR1+1 ;Read & write PUD

VAR2=1 ;Write LUD

ENDIF

SUB3 ;subprogram call

...

M17

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1.1 Variables

Program code Comment

PROC SUB3 ;Subprogram SUB3

...

IF (VAR1==1) ;Read PUD

VAR1=VAR1+1 ;Read & write PUD

VAR2=1 ;Error: LUD from SUB2 not known

ENDIF

...

M17

Example 3: Definition and use of user variables of data type AXIS

Program code Comment

DEF AXIS ABSCISSA ;1st geometry axis

DEF AXIS SPINDLE ;Spindle

...

IF ISAXIS(1) == FALSE GOTOF CONTINUE

ABSCISSA = $P_AXN1

CONTINUE:

...

SPINDLE=(S1) ;1st spindle

OVRA[SPINDLE]=80 ;Spindle override = 80%

SPINDLE=(S3) ;3rd spindle

Supplementary conditions

Global user variables (GUD)

In the context of the definition of global user variables (GUD), the following machine data has to be taken into account:

No. Identifier: $MN_ Meaning 11140 GUD_AREA_ SAVE_TAB Additional save for GUD blocks 18118 1) MM_NUM_GUD_MODULES Number of GUD files in the active file system 18120 1) MM_NUM_GUD_NAMES_NCK Number of global GUD names 18130 1) MM_NUM_GUD_NAMES_CHAN Number of channel-spec. GUD names 18140 1) MM_NUM_GUD_NAMES_AXIS Number of axis-spec. GUD names 18150 1) MM_GUD_VALUES_MEM Memory location for global GUD values 18660 1) MM_NUM_SYNACT_GUD_REAL Number of configurable GUD of the REAL data type 18661 1) MM_NUM_SYNACT_GUD_INT Number of configurable GUD of the INT data type 18662 1) MM_NUM_SYNACT_GUD_BOOL Number of configurable GUD of the BOOL data type 18663 1) MM_NUM_SYNACT_GUD_AXIS Number of configurable GUD of the AXIS data type 18664 1) MM_NUM_SYNACT_GUD_CHAR Number of configurable GUD of the CHAR data type 18665 1) MM_NUM_SYNACT_GUD_STRING Number of configurable GUD of the STRING data type

For SINUMERIK 828D, MD can only be read!

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Flexible NC programming

1.1 Variables

Program-global user variables (PUD)

Note Visibility of program-global user variables (PUD)

Program-global user variables (PUD) defined in the main program will only be visible in subprograms if the following machine data is set:

MD11120 $MN_LUD_EXTENDED_SCOPE = 1

If MD11120 = 0 the program-global user variables defined in the main program will only be visible in the main program.

Cross-channel use of an NCK-global user variable of the AXIS data type

An NCK-global user variable of the

AXIS data type initialized during definition in the data

block with an axis identifier can then only be used in other NC channels if the axis has the same channel axis number in these channels.

If this is not the case, the variable has to be loaded at the start of the part program or, as in the following example, the AXNAME(...) function has to be used.

Program code Comment

DEF NCK STRING[5] ACHSE="X" ;Definition in the data block

...

N100 AX[AXNAME(ACHSE)]=111 G00 ;Use in the part program

1.1.5 Redefinition of system variables, user variables, and NC language commands (REDEF)

Function

The REDEF command can be used to change the attributes of system variables, user variables and NC language commands. A fundamental condition of redefinition is that it has to post-date the corresponding definition.

Multiple attributes cannot be changed simultaneously during redefinition. A separate statement has to be programmed for each attribute to be changed.

If two or more concurrent attribute changes are programmed, the last change is always active.

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REDEF

Flexible NC programming

1.1 Variables

Resetting attribute values

Syntax

The attributes for access rights and initialization time change with default values by reprogramming

REDEF, followed by the name of the variable or the NC

REDEF can be reset to their

language command:

● Access rights: Protection level 7

● Initialization time: No initialization or retention of the current value

Redefinable attributes

See "Overview of definable and redefinable attributes (Page 44)"

Local u

ser va

riables (PUD/LUD)

Redefinitions are not permitted for local user variables (PUD/LUD).

REDEF <name> <PP_stop>

REDEF <name> <phys_unit>

REDEF <name> <limit_values>

REDEF <name> <access_rights>

REDEF <name> <init_time>

REDEF <name> <init_time> <init_value>

Meaning

REDEF <name>

REDEF: Command for redefinition of a certain attribute or to reset the

"Access rights" and/or "Initialization time" attributes of system variables, user variables and NC language commands

<name>: Name of an already defined variable or an NC language

command

<PP stop>:

<phys_unit>:

Preprocessing stop

SYNR: Preprocessing stop when reading SYNW: Preprocessing stop when writing SYNRW: Preprocessing stop when reading/writing

Physical unit

PHU <unit>: Physical unit

See "Attribute: Physical unit (PHU) (Page 37)" Note

Cannot be re

defined for:

 System variables  Global user data (GUD) of the data types:

FRAME

BOOL, AXIS, STRING,

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+ 818 hidden pages

siemens 840D Programming Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Table of contents

Flexible NC programming

1.1 Variables

1.1.1 System variable

1.1.2 Predefined user variables: Arithmetic parameters (R)

1.1.3 Predefined user variables: Link variables

1.1.4 Definition of user variables (DEF)

1.1.5 Redefinition of system variables, user variables, and NC language commands (REDEF)