Data; Parameterization; General Activation; Data Groups - Siemens SINUMERIK 840D sl Function Manual

W6: Path length evaluation - 840D sl only

24.3 Parameterization

24.2

Data

The following data is available:
System variable
1)
$AA_TRAVEL_DIST
$AA_TRAVEL_TIME
$AA_TRAVEL_COUNT
$AA_TRAVEL_DIST_HS
$AA_TRAVEL_TIME_HS
$AA_TRAVEL_COUNT_HS
$AA_JERK_TOT
$AA_JERK_TIME
$AA_JERK_COUNT
System variables can be read from part programs and synchronized actions
1)
) MCS: Machine coordinate system
2
Actual machine axis velocity ≥ 80% of the maximum parameterized axis velocity (MD32000 MAX_AX_VELO)
3)
24.3 Parameterization
24.3.1

General activation

The function is generally activated via the NCK-specific machine data:
MD18860 $MN_MM_MAINTENANCE_MON (Activate recording of maintenance data)
24.3.2

Data groups

The data has been collected into data groups.
The data groups are activated via the axis-specific machine data:
800
OPI variable Meaning
aaTravelDist Total traverse path:
sum of all set position changes in MCS
aaTravelTime Total travel time:
sum of IPO clock cycles from set position changes in MCS
(solution: 1 IPO clock cycle)
aaTravelCount Total travel count:
a complete machine axis trip is defined by the following succession of
states, as based on set position: standstill > traversing > standstill
aaTravelDistHS Total traversing distance at high axis velocities
aaTravelTimeHS Total traversing time at high axis velocities
aaTravelCountHS Total number of traversing operations at high axis velocities
aaJerkTotal Total sum of axis jerks:
Sum of all jerk setpoints in [m/s
aaJerkTime Total travel time with jerk:
sum of IPO clock cycles from jerk setpoint changes in [s] (solution: 1
IPO clock cycle)
aaJerkCount Total number of traversing operations with jerk
in [mm] or [deg.].
2)
3)
3)
] or [deg./ s ].
3 3
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
in [s]
2)
3)
Special functions