HEIDENHAIN PROFINET - Manual (Page 71)

Functional description of the encoder
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7.5 Alarm channel control
This parameter enables or disables the encoder specific Alarm
channel transferred as Channel Related Diagnosis. This functionali-
ty is used to limit the amount of data sent in isochronous mode.
If the value is zero (default value) only the communication related
alarms are sent via the alarm channel. If the value is one (1) also
encoder profile specific faults and warnings are sent via the alarm
channel.
Attribute Meaning Value
Enable Profile specific diagnosis is switch on 1
Disable No profile specific diagnosis (default) 0
Table 37 Alarm channel control
Note: This parameter is only supported in compatibility
mode.