Siemens S7-300 - Page 98

Machine and cam data
9.14 Cam data
FM 352 electronic cam controller
98 Operating Instructions, 05/2011, A5E01071724-03
No. Description Position-based cam Time-based cam
5 A cam is approached from any direction, and
exited into any direction; both directions are set
as effective direction
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Assigned cam
Switched cam
Cam data in the parameter DB
Address
relative
Name Type Initial value Comment
+0.0 CAMVALID BOOL FALSE 1 = cam valid
+0.1 EFFDIR_P BOOL TRUE 1 = positive effective direction (plus)
+0.2 EFFDIR_M BOOL TRUE 1 = negative effective direction
(minus)
+0.3 CAM_TYPE BOOL FALSE 0 = position-based cam
1 = time-based cam
+0.4 PI_SW_ON BOOL FALSE 1 = hardware interrupt on activation
+0.5 PI_SW_OFF BOOL FALSE 1 = hardware interrupt on
deactivation
+1.0 TRACK_NO BYTE B#16#0 Track number
Range: 0 to 31
Effective direction
Two effective directions are supported:
positive: The cam is activated at the cam start, if the axis is moving in the direction of increasing
actual values.
negative: The cam is activated at the cam end, if the axis is moving in the direction of decreasing
actual values.
You may set both effective directions in parallel.
Track number
You define the track controlled by the cam by setting the track number.
Note
Unused cams should always be set "invalid" (CAMVALID = FALSE).