Modal Call Of Drilling Cycles - Siemens SINUMERIK 840D Programming Manual

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2.2

Modal call of drilling cycles

With NC programming it is possible to call any
subroutine modally.
This feature is of special importance for drilling
cycles.
Programming
Modal call of a subroutine
MCALL
with drilling cycle (for example)
MCALL CYCLE81 (RTP, RFP, SDIS, DP, DPR)
Function
In NC programming, subroutines and cycles can be
called modally, also i.e. maintaining the parameters
previous values.
You generate a modal subroutine call by programming
the keyword MCALL (modal subroutine call) in front of
the subroutine name. This function causes the
subroutine to be called and executed automatically after
each block that contains traversing movement.
The function is deactivated by programming MCALL
without a subroutine name or by a new modal call of
another subroutine.
Nesting of modal calls is not permissible, i.e.,
subroutines that are called modally cannot contain any
further modal subroutine calls.
Any number of modal drilling cycles can be
programmed, the number is not limited to a certain
number of G functions reserved for this purpose.
 Siemens AG 2000 All rights reserved.
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
Drilling Cycles and Drilling Patterns
2.2 Modal call of drilling cycles
MCALL
2
MCALL MCALL
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