Siemens SINUMERIK 840D sl Function Manual page 165

Parameterization example for SGA "cam track" and "cam range"
Figure 7-20
Note
The traversing range for rotary axes must lie within ± 2048 revolutions. This corresponds to
the value range of the safety-related actual value.
Parameterization example for the diagram:
Enabling the cams SN1, SN2, SN3, SN6, SN8:
$MA_SAFE_CAM_ENABLE = 0xA7 (0000 0000 0000 0000 0000 0000 1010 0111);
Parameterizing the cam positions for the cams that have been enabled:
● SN1
$MA_SAFE_CAM_POS_PLUS[0] = 480
$MA_SAFE_CAM_POS_MINUS[0] = 455
● SN2
$MA_SAFE_CAM_POS_PLUS[1] = 120
$MA_SAFE_CAM_POS_MINUS[1] = 80
● SN3
$MA_SAFE_CAM_POS_PLUS[2] = 320
$MA_SAFE_CAM_POS_MINUS[2] = 300
● SN6
$MA_SAFE_CAM_POS_PLUS[5] = 200
$MA_SAFE_CAM_POS_MINUS[5] = 170
● SN8
$MA_SAFE_CAM_POS_PLUS[7] = 380
$MA_SAFE_CAM_POS_MINUS[7] = 350
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
SGA "cam track" and "cam range"
Safety functions integrated in the system/drive
7.8 Safety software cams and safety cam track (SN)
165