HEIDENHAIN PROFINET - Manual (Page 46)

PROFINET IO data description
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4.10 Control word (G1_STW)
The control word controls the functionality of major encoder func-
tions.
Bit Function
0..7 Function requests: Reference mark search,
measurement on the fly
8..10 Reserved (without effect)
11 Home position mode position mode (Preset)
12 Request set/shift of home position (Preset)
13 Request absolute value cyclically
14 Activate parking sensor
15 Acknowledging a sensor error
Table 21 Control word (G1_STW)
Note: If the sensor parking is activated (bit 14 = 1) the encod-
er is still on the bus with the slave sign of life active
and the encoder error and diagnostics switched off.