Siemens SINUMERIK 808D ADVANCED Operating Instructions Manual page 299

38000 MM_ENC_COMP_MAX_POINTS
- Number of intermediate points for interpol. compensation
(SRAM)
-
- 1
Description: The number of interpolation points required per measuring system must be
defined for the leadscrew error compensation.
The required number can be calculated as follows using the defined parame-
ters:
MD38000 $MA_MM_ENC_COMP_MAX_POINTS = ----------------------------------
$AA_ENC_COMP_MIN
$AA_ENC_COMP_MAX
$AA_ENC_COMP_STEP
When selecting the number of interpolation points and/or the distances
between them, it is important to take into account the size of the resulting
compensation table and the space required in the buffered NC user memory
(SRAM). 8 bytes are required for each compensation value (interpolation
point).
The index [n] has the following coding: [encoder no.]: 0 or 1
Special cases:
After any change in MD38000 $MA_MM_ENC_COMP_MAX_POINTS, the buffered NC user
memory is automatically re-allocated on system power-on.
All data in the buffered NC user memory are then lost (e.g. part programs,
tool offsets etc.). Alarm 6020 "Machine data changed - memory reallocated" is
output.
If reallocation of the NC user memory fails because the total memory capacity
available is insufficient, alarm 6000 "Memory allocation made with standard
machine data" is output.
In this case, the NC user memory division is allocated using the default val-
ues of the standard machine data.
References:
/FB/, S7, "Memory Configuration"
/DA/, "Diagnostics Guide"
Related to:
MD32700 $MA_ENC_COMP_ENABLE[n]LEC active
References:
/FB/, S7, "Memory Configuration"
Siemens Controls
Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
200 0
Initial position (system variable)
End position (system variable)
Distance between interpolation points (system variable)
2.4 Axis-specific machine data
A01, A09, A02 K3
DWORD PowerOn
5000 7/0
$AA_ENC_COMP_MAX - $AA_ENC_COMP_MIN
$AA_ENC_COMP_STEP
Notice:
Machine data
+ 1
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