Siemens SINUMERIK 840DE Programming Manual page 441

Group 17: Approach and retraction response, tool offset
Name No. Meaning
NORM 1. Normal position at start and end points
KONT 2. Travel around contour at start and end points
KONTT 3. Approach/traverse with continuous-tangent polynomial
KONTC 4. Approach/traverse with continuous-curvature polynomial
Group 18: Corner behavior, tool offset
Name No. Meaning
G450 1. Transition circle
(tool travels round workpiece corners on a circular path)
G451 2. Intersection of equidistant paths
(tool backs off from the workpiece corner)
Group 19: Curve transition at beginning of spline
Name No. Meaning
BNAT 1. Begin natural: natural transition to first spline block
BTAN 2. Begin tangential: tangential transition to first spline block
BAUTO 3. Begin not a node: (no node) Start is determined by the position of the
1st point
Group 20: Curve transition at end of spline
Name No. Meaning
ENAT 1. End natural: natural transition to next traversing block
ETAN 2. End tangential: tangential transition to next traversing block at spline
begin
EAUTO 3. Begin not a node: (no node) End is determined by the position of the last
point
Group 21: Acceleration profile
Name No. Meaning
BRISK 1. Fast non-smoothed path acceleration
SOFT 2. Soft smoothed path acceleration
DRIVE 3. Velocity-dependent path acceleration
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
12.3 List of G functions/preparatory functions
X m/n
X m/n
X m/n
X m/n
X m/n
Tables
SAG MM
m Def.
m
m
m
SAG MM
m Def.
m
SAG MM
m Def.
m
m
SAG MM
m Def.
m
m
SAG MM
m Def.
m
m
12-35