Siemens S7-300 - Example: Adjusting the Absolute Encoder

Machine and cam data
9.9 Example: Adjusting the absolute encoder
FM 352 electronic cam controller
84 Operating Instructions, 05/2011, A5E01071724-03
9.9 Example: Adjusting the absolute encoder
Assumptions
For this example, let us presume:
● Reference point coordinate = -125 mm
● Working range of SSW_STRT = - 1000 mm to SSW_END = 1000 mm
● Absolute encoder adjustment = 0
● Encoder range = 2048 increments (= pulses) at a resolution of 1 mm/pulse
● A precise mechanical adjustment of the absolute encoder is not possible, and there is no
option for setting a selective actual value.
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(1) Assignment of the coordinate system to encoder values, based on the absolute encoder
adjustment. Encoder value 0 is equivalent to actual value -125.
(2) Required assignment of the coordinate system to the encoder. The coordinate value
should be -125 at this position.