Detailed Description
2.2 Exact stop
Continuous-Path Mode, Exact Stop, LookAhead (B1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-5
This specification can be made independently for each of the following part program
commands:
• Rapid traverse: G0
• Machining commands: G1, G2, G3, CIP, ASPLINE, BSPLINE, CSPLINE,
POLY, G33, G34, G35, G331, G332, OEMIPO01, OEMIPO02, CT
The setting is made for each channel with the following machine datum:
MD20550 $MC_EXACT_POS_MODE (exact stop conditions for G00 and G01)
Coding
Each exact stop criterion is location-coded:
• Ones position E: rapid traverse
• Tens position Z: all other part program commands in the first G-group
MD20550 $MC_EXACT_POS_MODE = <
ZE
>
Z or E Active exact stop criterion
0 Programmed exact stop criterion
1 G601 (exact stop window fine)
2 G602 (exact stop window coarse)
3 G603 (interpolator end)
Example
MD20550 $MC_EXACT_POS_MODE = 02
Ones position = 2:
With rapid traverse, exact stop criterion G602 (exact stop window coarse) is always active,
irrespective of any programming in the part program.
Tens position = 0:
For traversing with all other part program commands of the first G-group, the exact stop
criterion programmed in the part program is active.
Assignable exact stop criterion for rapid traverse transitions in continuous path mode
The following channel-specific machine datum is used to assign the response at the block
change of part program blocks before and after rapid traverse blocks:
MD20552 $MC_EXACT_POS_MODE_G0_TO_G1 = < value
>
Value Meaning
0 No additional stop at the block change
1 Stop at block change: response, as appropriate G601 (exact stop window fine)
2 Stop at block change: response same as for G602 (exact stop window coarse)
3 Stop at block change: response same as for G603 (interpolator end)
4 Like 0; in addition, the override of the next non-G00 block is taken into account with Look
ahead in the G00 block during the transition from G00 to non-G00.
5 Like 0; in addition, the override of the next block is taken into account with Look ahead
during the transition from G00 to non-G00 and non-G00 to G00.