15
Tables 04.00
15.2 List of s
stem variables
15
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15-568
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
Identifier Type Description: System variable/value range/index Part pro Sync O S
$AA_EG_AX
AXIS $AA_EG_AX[n,a]
n: Index for leading axis
a: Following axis
Identifier for nth leading axis
n: Index for leading axis (nth leading axis)
Axes: Geometry axis, channel axis, machine axis
RS R 5
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2
15.2.49 Leading value coupling
$AA_LEAD_SP
REAL $AA_LEAD_SP[LW]
Simulated master value – position
RS W
S
RW 4
$AA_LEAD_SV
REAL $AA_LEAD_SV[LW]
Simulated master value – velocity
RS W
S
RW 4
$AA_LEAD_P_TU
RN
REAL $AA_LEAD_P_TURN[LW]
current leading value position parts lost through modulo reduction.
The actual leading value position (used for internal control
computation) is $AA_LEAD_P[LW] + $AA_LEAD_P_TURN[LW]
If MV is a modulo axis, $AA_LEAD_P_TURN
is an integral multiple of $MA_MODULO_RANGE.
If MV is not a modulo axis, $AA_LEAD_P_TURN is always 0.
Example_1:
$MA_MODULO_RANGE[LW]=360
$AA_LEAD_P[LW] =290
$AA_LEAD_P_TURN[LW] =720
The actual leading value position (used for internal control
computation) is 1010.
Example_2:
$MA_MODULO_RANGE[LW]=360
$AA_LEAD_P[LW] =290
$AA_LEAD_P_TURN[LW] =–360
The actual master value position
(used internally by the control in calculations) is –70.
RS R 4
$AA_LEAD_P
REAL $AA_LEAD_P[LW]
Current master value – position (modulo-reduced)
If MV is a modulo axis, the following always applies:
0 <= $AA_LEAD_P[LW] <= $MA_MODULO_RANGE[LW]
RS R 4
$AA_LEAD_V
REAL $AA_LEAD_V[LW]
Current master value – velocity
RS R 4
$AA_SYNC
INT $AA_SYNC [FA]
Coupling status of following axis in master value coupling
0 => No synchronism
1 => Synchronization coarse (myVdiOut->getSynchCoarse() ==
TRUE)
2 => Synchronization fine (myVdiOut->getSynchFine() == TRUE)
3 => Coarse and fine
Axes: Geometry axis, channel axis, machine axis
RS R 4
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