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10.16 Querying checkback signals for the cam controller
FM 352 electronic cam controller
134 Operating Instructions, 05/2011, A5E01071724-03
10.16 Querying checkback signals for the cam controller
Definition
The "checkback signals for the cam controller" setting informs you about the current state of
the cam control and track signals. Consistency between the reported position and track
signals is not guaranteed.
Programming steps
The data are stored in the channel DB at each call of FB CAM_CTRL.
Data used in the channel DB
Address Name Type Start value Comment
23.4 CAM_ACT BOOL FALSE 1 = cam processing busy
26.0 ACT_POS DINT L#0 Current axis position
30.0 TRACK_OUT DWORD DW#16#0 Current track signals of tracks 0 to 31
Bit 0 = track 0
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