Siemens S7-300 - Cam Data

Machine and cam data
9.14 Cam data
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
97
9.14 Cam data
Definition
Cam data describe the properties of a cam, the assignment of each cam to a track, and the
switching characteristic of the cam. The cam data listed below are set separately at each
cam.
● The module interprets and processes only the cams with "valid" settings.
● Cams 0 to 7 support hardware interrupts.
● The number of assignable cams depends on the number of cams available.
Switching characteristics of cams based on their effective direction
A positive effective direction is always assumed, with the exception of example 5.
No. Description Position-based cam Time-based cam
1 A cam is traversed in the
effective direction
1$

1(

1$
$FWLYDWLRQWLPH
2 A cam is traversed in reversed effective direction
1$

1(
1$
$FWLYDWLRQWLPH
3 A cam is approached in effective direction; the
motion direction of the axis is reversed while the
cam is active
1$

1(
1$
W
W
[
$FWLYDWLRQWLPH
$FWLYDWLRQWLPH[ WW
4 A cam is approached in reversed effective
direction; the axis reverses its direction of
movement on the cam in effective direction
1$

1(
Cam not switched