Siemens SINUMERIK 840Di Function Manual page 335

$AA_FXS and $VA_FXS
In SW 6.2 and higher, the meaning of system variable $AA_FXS is redefined for SERUPRO
only and completely replaced by variable $VA_FXS. Variables $AA_FXS and $VA_FXS have
the same values continuously outside the SERUPRO function.
Description
Axis not at fixed stop
Fixed stop successfully approached
Approach to fixed stop failed
Travel to fixed stop selection active
Fixed stop detected
Travel to fixed stop deselection active
Course of values
Course of values of system variables $VA_FXS[ ] with values 1 to 5
Fig. 2-2
Travel to Fixed Stop (F1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Diagram for FXS with a digital drive (611 digital)
Detailed Description
2.1 General functionality
NCK Variables
$AA_FXS = 0 and $VA_FXS = 0
$AA_FXS = 1 and $VA_FXS = 1
$AA_FXS = 2 and $VA_FXS = 2
$AA_FXS = 3 and $VA_FXS = 3
$AA_FXS = 4 and $VA_FXS = 4
$AA_FXS = 5 and $VA_FXS = 5
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