Siemens SIMATIC FM 452 Manual page 95

No. Description
5
A cam is approached and
left in any direction; both
directions are set as the
activation direction.
Set cam
Cam Data in the Parameter DB
Address Name
(relative)
+0.0 CAMVALID
+0.1 EFFDIR_P
+0.2 EFFDIR_M
+0.3 CAM_TYPE
+0.4 PI_SW_ON
+0.5 PI_SW_OFF
+1.0 TRACK_NO
Activation direction
Two activation directions are possible:
positive: The cam is activated at the cam start when the axis is moving in the direction of ascending
actual values.
negative: The cam is activated at the cam end when the axis is moving in the direction of
descending actual values.
You can also set both activation directions at the same time.
Track number
With the track number, you define the track with which each cam is effective.
Note:
Unused cams should always be set to "invalid" (CAMVALID = FALSE).
FM 452 Electronic Cam Controller
C79000-G7076-C452-04
Distance cam
CS
Switched cam
Type Initial Value
BOOL FALSE
BOOL TRUE
BOOL TRUE
BOOL FALSE
BOOL FALSE
BOOL FALSE
BYTE B#16#0
Machine Data and Cam Data
Time cam
CE CS
On time x = t1 + t2 + t3
Comment
1 = cam valid
1 = activation direction positive (plus)
1 = activation direction negative (minus)
0 = distance cam
1 = time cam
1 = hardware interrupt on activation
1 = hardware interrupt on deactivation
Track number
Range: 0 to 31
On time
x
t1
t2
t3
8-27