Siemens S7-300 - Read Encoder Data

Settings
10.13 Read encoder data
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
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10.13 Read encoder data
Definition
The "encoder data" setting an be used to read actual encoder data, and the value for
absolute encoder adjustment.
Requirements
The value for absolute encoder adjustment can be read after "set reference point" is
configured (see chapter "Determining the correct absolute encoder adjustment (Page 82)").
Programming steps
1. Set the trigger bit at the channel DB.
2. The data are stored in the channel DB.
Data used in the channel DB
Address Name Type Start value Comment
38.5 ENCVAL_EN BOOL FALSE 1 = read encoder values
140.0 ENCVAL DINT L#0 Encoder value / counter value (internal
representation)
144.0 ZEROVAL DINT L#0 Counter value at the last zero mark (internal
representation)
148.0 ENC_ADJ DINT L#0 Absolute encoder adjustment