Siemens SINUMERIK 840D sl Programming Manual page 202

Flexible NC programming
1.25 Subprogram technique
2nd return jump parameter 1 = "N200", return jump parameter 2 = 1
After the RET command, program execution is continued with the block (N210) that follows
block N200 in the main program.
3rd return jump parameter 1 = "N220", return jump parameter 3 = 2
After the RET command, two program levels are jumped through and program execution is
continued with block N220.
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Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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