Siemens SIMATIC S5 Equipment Manual page 17

General Function Description
If the selected end value is higher than the initial value, the track identifier bit is set within the cam
(= 1).
If, however, the selected initial value is higher than the end value, the track identifier bit within the
cam is reset (= O).
Outside the cam the applicable track identifier bit is set (= 1).
Example:
I
A ~ ~
I
When encoders allow a negative traversing range, the sign must be considered!
Example: –200 initial value and –500 end value
The track identifier bit is inverted (i.e., within the cam = O)!
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E
- E
Actual value
Total track
- 5 0 0 –200
E A
Actual value
R 02/92
Track identifier bit = O
Track identifier bit = 1
Track identifier bit = 1
Track identifier bit = O