Working-Area Limitation ($Sa_Workarea; Sw Cam Positions And Times ($$Sn_Sw_Cam - Siemens SINUMERIK 840D sl Function Manual

3.3.13

Working-area limitation ($SA_WORKAREA_ ... )

Only the activation via the setting data is effective for the traversable command axes in
synchronized actions with regard to the programmable working-area limitation G25/G26:
● $SA_WORKAREA_PLUS_ENABLE
● $SA_WORKAREA_MINUS_ENABLE
Switching the working-area limitation on and off via the commands WALIMON/WALIMOF in the
part program has no effect on the command axes traversable via synchronized actions.
3.3.14

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
...
; Changing a lead time
ID=1 WHEN $AA_IW[x] > 0 DO $$SN_SW_CAM_MINUS_TIME_TAB_1[0] = 1.0
Synchronized actions
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
3.3 System variables for synchronized actions
Meaning
Minus cam positions
Minus cam positions
Plus cam positions
Plus cam positions
Minus cam lead or delay time
Minus cam lead or delay time
Plus cam lead or delay time
Plus cam lead or delay time
DO $$SN_SW_CAM_MINUS_POS_TAB_1[0] = 50.0
Detailed description
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