Siemens SINUMERIK 840D sl Function Manual page 116

W1: Tool offset
2.8 Tool carriers with orientation capability
These chain elements can be uniquely identified with system variable
$TC_CARR_CORR_ELEM[m, n]. where m is the index of the tool carrier data set and n is the
index of the correction vector (n = 0...3]).
Read out length and direction of the vectors of TCARR.
The currently active offset vectors, rotary axis vectors, and rotary axis offsets can be read out
via system variables $PC_TCARR_OFFSET, $PC_TCARR_AX_VECT, and
$PC_TCARR_AX_OFFSET. For more detailed information about offset vectors, see General
information (Page 95).
Syntax
$PC_TCARR_OFFSET[m,n] = <value>
m
n
Syntax
$PC_TCARR_AX_VECT[m,n] = <value>
m
n
Syntax
$PC_TCARR_AX_OFFSET[m] = <value>
m
Tool carrier with more than two rotary axes
For tool carriers that are defined with more than two rotary axes, the third axis is ignored. It
describes a constant angle (knee) between the two rotary axes. Axis v
taken into account. Instead, offset I
The relevant rotary axes are defined with the system variable
$TC_CARR_KIN_ROTAX_NAME in the sequence in which they occur in the chain. Up to two
rotary axes may be defined.
116
Description
Current value of the n-th vector component of offset I
carrier. Maximum 4 offset vectors (l1 to l4) are defined for an active tool
carrier. Vector components can be read out with this system variable.
Data type: DOUBLE
Offset vector[m] (where m = 1...4) of the active tool carrier.
Vector component n (where 0 ≤ n ≤ 2) of the vector that was selected with
field index m.
Description
Current value of the n-th vector component of rotary axis v
carrier. A maximum of 2 rotary axes (v1 to v2) are defined for an active tool
carrier. Vector components can be read out with this system variable.
Data type: DOUBLE
Rotary axis direction v1, v2, where m = 1...2 of the active tool carrier.
Vector component n (where 0 ≤ n ≤ 3) of the vector that was selected with
m.
Description
Current value of the rotational offset of rotary axes 1 and 2. Maximum 2
rotary axes are defined for an active tool carrier. The positions of the rotary
axes in their initial state can be read out with this system variable.
Data type: DOUBLE
Rotary offset where m = 1...2 of the active tool carrier.
is formed.
2
of an active tool
m
of an active tool
m
in the example is not
2
Function Manual, 06/2019, A5E47435126B AA
Tools