Read Encoder Data - Siemens SIMATIC FM 351 Manual

Modes and Jobs
9.10

Read Encoder Data

Definition
With the "read encoder data" job, you read the current data of the encoder and the
value of the absolute encoder adjustment.
Requirements
You can read out the value for the absolute encoder adjustment after executing the
"set reference point" job (see Section 8.6, page 8-19).
Sequence of the Job
1. Set the trigger bit in the channel DB (ENCVAL_EN=1).
2. The data are stored in the channel DB.
Data Used in the Channel DB
Address Name
37.2 ENCVAL_EN
124.0 ENCVAL
128.0 ZEROVAL
132.0 ENC_ADJ
9-32
Type Initial Value
BOOL FALSE
DINT L#0
DINT L#0
DINT L#0
Comment
1 = read encoder values
Encoder actual value (internal representation)
Last zero marker value (internal representation)
Absolute encoder adjustment
FM 351 Positioning Module
C79000-G7076-C351-02