Siemens sinumerik 840D sl Function Manual page 738

Table of contents
1 Brief description ......................................................................................................................................... 5
2 Detailed description ................................................................................................................................... 7
2.1 Functional description ....................................................................................................................7
2.1.1 Definition of terms ..........................................................................................................................8
2.1.2 Functional sequence (principle) .....................................................................................................9
2.1.3 Retraceable contour area ............................................................................................................12
2.2 Startup..........................................................................................................................................13
2.2.1 Activating the technological function............................................................................................13
2.2.2 Memory configuration: Block memory .........................................................................................13
2.2.3 Memory configuration: Heap memory..........................................................................................14
2.2.4 RESU main program memory area .............................................................................................15
2.2.5 Storage location of the RESU subroutines ..................................................................................16
2.2.6 ASUB enable................................................................................................................................17
2.2.7 PLC user program........................................................................................................................17
2.3 Programming................................................................................................................................18
2.3.1 RESU Start/Stop/Reset (CC_PREPRE) ......................................................................................18
2.4 RESU-specific part programs ......................................................................................................20
2.4.1 Main program (CC_RESU.MPF)..................................................................................................21
2.4.2 INI program (CC_RESU_INI.SPF) ...............................................................................................22
2.4.3 END program (CC_RESU_END.SPF) .........................................................................................24
2.4.4 Retrace support ASUB (CC_RESU_BS_ASUP.SPF)..................................................................25
2.4.5 RESU ASUB (CC_RESU_ASUP.SPF) ........................................................................................26
2.5 Retrace support............................................................................................................................26
2.5.1 Block search with calculation on contour.....................................................................................27
2.5.2 Reposition ....................................................................................................................................28
2.5.3 Temporal conditions affecting NC START...................................................................................28
2.5.4 Block search from last main block ...............................................................................................29
2.6 Function-specific display data......................................................................................................30
2.6.1 Channel-specific GUD variables ..................................................................................................30
2.7 Function-specific alarm texts .......................................................................................................32
3 Boundary conditions ................................................................................................................................ 33
3.1 Function-specific boundary conditions.........................................................................................33
3.1.1 Within subroutines .......................................................................................................................33
3.1.2 Within program loops ...................................................................................................................34
3.1.3 Full circles ....................................................................................................................................34
3.1.4 Automatically generated contour elements..................................................................................34
3.2 Boundary conditions for standard functions.................................................................................35
3.2.1 Axis exchange, 1st and 2nd geometry axis .................................................................................35
3.2.2 Channel axes ...............................................................................................................................35
3.2.3 Block numbers .............................................................................................................................35
3.2.4 Block search.................................................................................................................................36
3.2.5 Transformations ...........................................................................................................................36
Special functions: Retrace Support (TE7)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
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