HEIDENHAIN PROFIBUS-DP (DPV0) - Manual (Page 52)

Encoder and Gateway functionality, DPV0
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5.6.10 Supported warnings
The diagnostics octet 22 and 23 contain information about
supported warnings.
Octet 22 23
Bits 15-8 7-0
Supported Warnings
Octet Definition =0 =1
0 Frequency warning Not supported Supported
1 Temperature warning Not supported Supported
2 Light control reserve warning Not supported Supported
3 CPU monitoring status warning Not supported Supported
4 Maximum operating time
exceeded warning
Not supported Supported
5 Battery charging warning Not supported Supported
6 Reference point warning Not supported Supported
7..15 Currently not assigned
Table 30 Diagnostics, supported warnings