Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
131
Machine data
2.3 Channel-specific machine data
Description: The MD specifies for which technology groups the extended LookAhead is
active.
Value 0: Default LookAhead
Value 1: Extended LookAhead
Value 2: reserved
E.g. MD20443 $MC_LOOKAH_FFORM[4]=1; i.e. activation for DYNFINISH.
Entry for all dynamic G code groups.
When changing between default LookAhead and extended LookAhead or vice versa,
the continuous-path mode is interrupted by an interpolatory stop.
Description: The MD defines how significantly the IPO buffer control (FIFOCTRL) should
influence the path feedrate with the buffer full.
0.0 means that the IPO buffer control, for a full IPO buffer stops limiting
the path feedrate. This shortens the machining time, but it can increase the
risk of the IPO buffer running empty.
1.0 means that the IPO buffer control, with full IPO buffer continues to con-
trol the path feedrate, and therefore avoids the IPO buffer becoming empty
faster. This results in minor fluctuations of the IPO buffer fill level. How-
ever, a longer machining time must be expected.
Values between 0.0 and 1.0 permit a smooth, seamless transition from the old
to the new response.
Corresponds with:
FIFOCTRL
20443 LOOKAH_FFORM EXP, C05 -
- Activate extended LookAhead BYTE NEW CONF
-
808d-me42 5 0, 0, 0, 0, 0, 0, 0, 0,
0, 0...
0 2 0/0
808d-me62 5 0, 0, 1, 1, 1 0 2 2/2
808d-te42 5 0, 0, 0, 0, 0, 0, 0, 0,
0, 0...
0 2 0/0
808d-te62 5 0, 0, 0, 0, 0, 0, 0, 0,
0, 0...
0 2 0/0
20463 FIFOCTRL_ADAPTION EXP, C05 -
- Adaptation of the IPO buffer control DOUBLE NEW CONF
-
- - 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0...
0.0 1.0 1/1
Siemens Controls
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