Siemens SINUMERIK 828D Programming Manual page 481

Operation Meaning
IF Introduction of a conditional jump in the
part program/technology cycle
INDEX Define index of character in input string
INIPO Initialization of variables at POWER ON
INIRE Initialization of variables at reset
INICF Initialization of variables at NewConfig
INIT Selection of a particular NC program for
execution in a particular channel
INITIAL Generation of an INI file across all
areas
INT Data type: Integer with sign
INTERSEC Calculate intersection between two
contour elements
INVCCW Trace involute, counter-clockwise
INVCW Trace involute, clockwise
INVFRAME Calculate the inverse frame from a
frame
IP Variable interpolation parameter
IPOBRKA Motion criterion from braking ramp
activation
IPOENDA End of motion when "IPO stop" reached
IPTRLOCK Freeze start of the untraceable program
section at next machine function block
IPTRUNLOCK Set end of untraceable program section
at current block at time of interruption
ISAXIS Check if geometry axis 1 specified as
parameter
ISD Insertion depth
ISFILE Check whether the file exists in the
NCK application memory
ISNUMBER Check whether the input string can be
converted to a number
Fundamentals
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
W Description see
1) 2)
PGAsl
PGAsl
PGAsl
PGAsl
PGAsl
PGAsl
PGAsl
PGAsl
PGAsl
PGsl
m
Involute interpolation (INVCW, INVCCW) (Page 240)
PGsl
m
Involute interpolation (INVCW, INVCCW) (Page 240)
FB1(K2)
PGAsl
PGAsl
m
PGAsl
m
PGAsl
m
PGAsl
m
PGAsl
PGAsl
m
PGAsl
PGAsl
Tables
16.1 Instructions
481