Siemens SINUMERIK 840 User Manual page 57

08.96
R11 = 0 Without empirical value, without average value memory
> 0 Number of empirical value memory
The average value memory number is likewise determined via R11 which reduces the time
required for programming.
Special case:
When R11 is defined > 9999, R11 is evaluated as follows:
R11 = 8 7 6 5 4
Example: Empirical value memory number
Average value memory number
The following diagram is to illustrate the effect of the empirical value R11 (see also outline
flowchart in Section 1.5.4):
No
Correction
strategy
©
Siemens AG 1990 All Rights Reserved
SINUMERIK 840/850/880 (BN)
3 2 1
Empirical value memory number
(max. 0 to 99)
Average value memory number
(max. 1 to 99)
12
9
Measuring
cycle
Measuring
Calculate set/actual difference
for tool measurement: TO memory minus new length
for workpiece meas.: Set value (R42) minus actual value
measured
Difference
minus/plus
empirical value
R11
Difference
No
>
safe area
R36
Difference >
Yes
dimensional
difference
check R37
Display:
Permissible
dimensional
diff. overrun
M17
End
6FC5197- AB70
2 Defining Parameters
2.3 R11 Empirical value / average value
R11 = 90012
Yes
Display:
Safe area
overrun
2–3