Siemens SINUMERIK 840D sl Programming Manual page 8

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 Program jumps to jump markers (GOTOB, GOTOF, GOTO, GOTOC)...................................... 97
1.10.3 Program branch (CASE ... OF ... DEFAULT ...)........................................................................ 100
1.11 Repeat program section (REPEAT, REPEATB, ENDLABEL, P).............................................. 102
1.12 Check structures ....................................................................................................................... 108
1.12.1 Conditional statement and branch (IF, ELSE, ENDIF) ............................................................. 110
1.12.2 Continuous program loop (LOOP, ENDLOOP)......................................................................... 111
1.12.3 Count loop (FOR ... TO ..., ENDFOR) ...................................................................................... 112
1.12.4 Program loop with condition at start of loop (WHILE, ENDWHILE).......................................... 114
1.12.5 Program loop with condition at the end of the loop (REPEAT, UNTIL) .................................... 115
1.12.6 Program example with nested check structures ....................................................................... 115
1.13 Program coordination (INIT, START, WAITM, WAITMC, WAITE, SETM, CLEARM) .............. 116
1.14 Interrupt routine (ASUB)............................................................................................................ 121
1.14.1 Function of an interrupt routine ................................................................................................. 121
1.14.2 Creating an interrupt routine ..................................................................................................... 123
1.14.3 Assign and start interrupt routine (SETINT, PRIO, BLSYNC) .................................................. 124
1.14.4 Deactivating/reactivating the assignment of an interrupt routine (DISABLE, ENABLE) ........... 125
1.14.5 Delete assignment of interrupt routine (CLRINT) ..................................................................... 126
1.14.6 Fast retraction from the contour (SETINT LIFTFAST, ALF) ..................................................... 127
1.14.7 Traversing direction for fast retraction from the contour ........................................................... 129
1.14.8 Motion sequence for interrupt routines ..................................................................................... 132
1.15 Axis replacement, spindle replacement (RELEASE, GET, GETD)........................................... 132
1.16 Transfer axis to another channel (AXTOCHAN) ....................................................................... 137
1.17 Activate machine data (NEWCONF)......................................................................................... 138
1.18 Write file (WRITE) ..................................................................................................................... 139
1.19 Delete file (DELETE)................................................................................................................. 144
1.20 Read lines in the file (READ) .................................................................................................... 146
1.21 Check for presence of file (ISFILE)........................................................................................... 148
1.22 Read out file information (FILEDATE, FILETIME, FILESIZE, FILESTAT, FILEINFO) ............. 150
1.23 Roundup (ROUNDUP) .............................................................................................................. 153
1.24 Subprogram technique.............................................................................................................. 154
1.24.1 General information................................................................................................................... 154
1.24.1.1 Subprogram .............................................................................................................................. 154
1.24.1.2 Subprogram names................................................................................................................... 155
1.24.1.3 Nesting of subprograms ............................................................................................................ 156
1.24.1.4 Search path............................................................................................................................... 157
1.24.1.5 Formal and actual parameters .................................................................................................. 158
1.24.1.6 Parameter transfer .................................................................................................................... 159
1.24.2 Definition of a subprogram ........................................................................................................ 161
1.24.2.1 Subprogram without parameter transfer ................................................................................... 161
1.24.2.2 Subprogram with call-by-value parameter transfer (PROC) ..................................................... 162
1.24.2.3 Subprogram with call-by-reference parameter transfer (PROC, VAR) ..................................... 163
1.24.2.4 Save modal G functions (SAVE) ............................................................................................... 166
1.24.2.5 Suppress single block execution (SBLOF, SBLON) ................................................................. 167
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Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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