Siemens SINUMERIK 808D User Manual page 209

Explanation of the parameters
For an explanation of the parameters RTP, RFP, and SDIS, see Section "Drilling, centering - CYCLE81 (Page 157)".
D P and DPR (long hole depth)
The depth of the long hole can be specified either absolute (DP) or relative (DPR) to the reference plane.
With relative specification, the cycle calculates the resulting depth automatically using the positions of reference and
retraction planes.
N U M (number)
Use the parameter NUM to specify the number of long holes.
L ENG (long hole length)
The length of the long hole is programmed under LENG.
If it is detected in the cycle that this length is smaller than the milling diameter, the cycle is aborted with alarm 61105 "Milling
radius is too large".
MID (infeed depth)
Use this parameter to define the maximum infeed depth.
The depth infeed is performed by the cycle in equally-sized infeed steps.
Programming and Operating Manual (Milling)
209
6FC5398-4DP10-0BA6, 09/2017