Siemens SINUMERIK 840Di Function Manual page 162

Detailed Description
2.3 Continuous-path mode
Scope of the path criterion
• ADIS or ADISPOS must be programmed. If the default is "zero", G641 behaves like G64.
• If only one of the blocks involved is rapid traverse G00, the smaller rounding distance
• If a very small value is used for ADIS, the control must make sure that every interpolated
• Irrespective of ADIS and ADISPOS, the rounding area is limited by the block length.
Fig. 2-5
Programming example
N1 G641Y50 F10 ADIS = 0.5
N2 X50
N3 X50.7
N4 Y50.7
N5 Y51.4
N6 Y51.0
N7 X52.1
In blocks with short distances (distance < 4*ADIS and < 4 * ADISPOS respectively), the
rounding distance is reduced so that a traversable part of the original block is retained. The
remaining length depends on the axis path and is approximately 60% of the distance still to
be traversed in the block.
2-14
applies.
block, even an intermediate rounding block, contains at least one interpolation point. The
maximum path velocity is thereby limited to ADIS/interpolation cycle.
Path with limitation of ADIS
Continuous-Path Mode, Exact Stop, LookAhead (B1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0