Information About Block Types In The Interpolator; Ac_Blocktypeinfo, $Ac_Splitblock) - Siemens SINUMERIK 840D sl Programming Manual

Motion synchronous actions
10.3 Main run variables for synchronized actions
10.3.11 Information about block types in the interpolator ($AC_BLOCKTYPE,

$AC_BLOCKTYPEINFO, $AC_SPLITBLOCK)

Function
The following system variables are available for synchronized actions to provide information
about a block current executing in the main run:
● $AC_BLOCKTYPE
● $AC_BLOCKTYPEINFO
● $AC_SPLITBLOCK
Block type and block type info variables
$AC_BLOCKTYPE
Value:
0 Not equal to 0
Original Intermediate block
block
1
2
2
3
3
3
4
4
4
4
4
4
4
4
660
$AC_BLOCKTYPEINFO
Value:
T H Z E
1 0 0 0
2 0 0 1
2 0 0 2
3 0 0 1
3 0 0 2
3 0 0 3
4 0 0 1
4 0 0 2
4 0 0 3
4 0 0 4
4 0 0 5
4 0 0 6
4 0 0 7
4 0 0 8
Meaning:
Trigger for intermediate block:
Internally generated block, no further information
Chamfer/rounding: Straight
Chamfer/rounding: Circle
WAB: Approach with straight line
WAB: Approach with quadrant
WAB: Approach with semicircle
Tool compensation:
Approach block after STOPRE
Connection blocks if intersection point not found
Point-type circle on inner corners
(on TRACYL only)
Bypass circle (or conical cut) at outer corners
Approach blocks for offset suppression
Approach blocks on repeated WRC activation
Block split due to excessive curvature
Compensation blocks on 3D face milling (tool
vector || area vector)
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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