Table Of Contents - Siemens SINUMERIK 828D Function Manual

Contents
Preface ...................................................................................................................................................... 3
1 Brief description ......................................................................................................................................... 9
2 Detailed description ................................................................................................................................. 11
2.1 Definition of a synchronized action ..............................................................................................11
2.2 Components of synchronized actions..........................................................................................12
2.2.1 Validity, identification number (ID, IDS) .......................................................................................12
2.2.2 Frequency (WHENEVER, FROM, WHEN, EVERY)....................................................................13
2.2.3 G function (condition)...................................................................................................................14
2.2.4 Condition ......................................................................................................................................15
2.2.5 G function (action)........................................................................................................................16
2.2.6 Action (DO) ..................................................................................................................................16
2.3 System variables for synchronized actions..................................................................................17
2.3.1 Reading and writing .....................................................................................................................17
2.3.2 Operators and arithmetic functions..............................................................................................19
2.3.3 Type conversions.........................................................................................................................22
2.3.4 Marker/counter ($AC_MARKER) .................................................................................................24
2.3.5 Parameters ($AC_PARAM) .........................................................................................................25
2.3.6 R parameters ($R) .......................................................................................................................26
2.3.7 Machine and setting data ($$M, $$S)..........................................................................................27
2.3.8 Timer ($AC_TIMER) ....................................................................................................................28
2.3.9 FIFO variables ($AC_FIFO) .........................................................................................................30
2.3.10 Path tangent angle ($AC_TANEB)...............................................................................................34
2.3.11 Override ($A...OVR).....................................................................................................................34
2.3.12 Capacity evaluation ($AN_IPO ... , $AN/AC_SYNC ... , $AN_SERVO).......................................37
2.3.13 Working-area limitation ($SA_WORKAREA_ ... ) ........................................................................39
2.3.14 SW cam positions and times ($$SN_SW_CAM_ ...)....................................................................40
2.3.15 Path length evaluation / machine maintenance ($AA_TRAVEL ... , $AA_JERK ... )...................41
2.3.16 Polynomial coefficients, parameters ($AC_FCT ...).....................................................................42
2.3.17 Overlaid movements ($AA_OFF).................................................................................................45
2.3.18 Online tool length compensation ($AA_TOFF) ............................................................................48
2.3.19 Current block in the interpolator ($AC_BLOCKTYPE, $AC_BLOCKTYPEINFO,
$AC_SPLITBLOCK).....................................................................................................................53
2.3.20 Initialization of array variables (SET, REP)..................................................................................56
2.4 User-defined variables for synchronized actions .........................................................................57
2.5 Language elements for synchronized actions and technology cycles.........................................59
2.6 Language elements for technology cycles only ...........................................................................66
2.7 Actions in synchronized actions...................................................................................................67
2.7.1 Output of M, S and H auxiliary functions to the PLC ...................................................................67
2.7.2 Reading and writing of system variables .....................................................................................68
2.7.3 Polynomial evaluation (SYNFCT) ................................................................................................69
2.7.4 Online tool offset (FTOC).............................................................................................................76
2.7.5 Programmed read-in disable (RDISABLE) ..................................................................................78
Synchronized actions
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
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