Siemens SINUMERIK 840D sl Function Manual page 625

Program example
The following program extract implements the changes described above:
U
R
R
O
O
R
R
U
R
U
R
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
DB21, ... DBX32.2
DB21, ... DBX0.1
DB21, ... DBX0.2
DB11, ... DBX0.7
DB21, ... DBX7.7
DB21, ... DBX0.1
DB21, ... DBX0.2
DB21, ... DBX0.2
DB21, ... DBX0.1
DB21, ... DBX0.1
DB21, ... DBX0.2
TE7: Continue machining - retrace support
// IF "Retrace support active" == 1
// THEN "Forward/Reverse" = 0
// "Start retrace support" = 0
// IF "Mode group reset" == 1
// OR "Reset" == 1
// THEN "Forward/Reverse" = 0
// "Start retrace support" = 0
// IF "Start retrace support" == 1
// THEN "Forward/Reverse" = 0
// IF "Forward/Reverse" == 1
// THEN "Start retrace support" = 0
15.3 Startup
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