HARSH.MPF
N10 G90 G71 M06 T03 D01 ;
N20 M03 S1000 M08 ;
N30 G17 G00 X50 Y50 Z50 ;
N40 POCKET 1 ( 10 , 0 , 5 , _ , -10 , 50 , 30 , 8 , 50 , 50, 30 , 100 , 300 , 10 , 2 , 0.5 , 2 , 10 , 400 , 1200)
N50 G00 Z50 ;
N60 M05 M09 M30
for more info follow this link -
http://www.hdknowledge.com/2019/03/siemens-sinumerik-pocket-1-cnc-milling-rectangular-pocket.html