Is anyone aware of any ground rules or best practices for defining your own ARINC 429 labels? Are there certain ranges of labels that correspond to groups of parameters like engine temps, rpms, etc? Am I basically free to start at Label 000 and define my own words?
Appendix E of the ARINC 429 Part 1 spec dated 2004 provides the guidelines for label assignments such as:
- label ranges for BNR/BCD/Discrete data
- Maintenance vs normal data
Label 000 should not be used and label 377 is reserved for the Equipment Identification.
What ultimately matters, however, is that the receiving equipment knows how to decode the labels it receives.