Sw Cam Positions And Times ($$Sn_Sw_Cam - Siemens SINUMERIK 828D Function Manual

Detailed description
2.3 System variables for synchronized actions
2.3.14

SW cam positions and times ($$SN_SW_CAM_ ...)

The values of the SW cam positions and times can be read and written via the following
setting data:
NC-specific setting data
$SN_SW_CAM_MINUS_POS_TAB_1[0..7]
$SN_SW_CAM_MINUS_POS_TAB_2[0..7]
$SN_SW_CAM_PLUS_POS_TAB_1[0..7]
$SN_SW_CAM_PLUS_POS_TAB_2[0..7]
$SN_SW_CAM_MINUS_TIME_TAB_1[0..7]
$SN_SW_CAM_MINUS_TIME_TAB_2[0..7]
$SN_SW_CAM_PLUS_TIME_TAB_1[0..7]
$SN_SW_CAM_PLUS_TIME_TAB_2[0..7]
Note
The setting of a software cam via synchronized actions must not be performed immediately
before the cam is reached. At least three interpolation cycles must be available before the
cam is reached.
A detailed description of the "Software cam" function can be found in:
References
Function Manual for Extended Functions, Software Cams, Position-Switching Signals (N3)
Examples
Program code
; Changing a cam position:
ID=1 WHEN $AA_IW[x] > 0 DO $$SN_SW_CAM_MINUS_POS_TAB_1[0] = 50.0
...
; Changing a lead time
ID=1 WHEN $AA_IW[x] > 0 DO $$SN_SW_CAM_MINUS_TIME_TAB_1[0] = 1.0
See also
Machine and setting data ($$M, $$S) (Page 27)
40
Meaning
Minus cam positions
Minus cam positions
Plus cam positions
Plus cam positions
Minus cam lead or delay time
Minus cam lead or delay time
Plus cam lead or delay time
Plus cam lead or delay time
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
Synchronized actions