“In order to understand the details about the packet format to be OMS and wireless MBUS complient using the MBUS3 modules you need the OMS specification.
http://www.oms-group.org/en_downloads.html
This specification informs about the C and CI field and also gives you some packet format exsamples in the appendix.
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Last Update: September 14, 2017
September 14, 2017 2479 Wireless M-Bus Q&A