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Edit the following tables (press edit at the top right of the table), then cut and paste the code for use in the BACnet Wiki



Simple

Main Heading
Value Description
1 xxxx
8 yyyy

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I-Am APDU Contents
Octets Value Description
1 0001 0000 BACnet-Unconfirmed-Request-PDU (LSB nibble is reserved)
etc Official list here. Vendor Identifier



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BVLC Structure
UDP Header
BVLC Octets Description Comment
1 Type (0x81) Fixed
1 BVLC Function Fixed
2 BVLC Length Fixed
4 IP address of Originating Device Dependent on BVLC Function Code
2 Port # of Originating Device Dependent on BVLC Function Code
BVLC length - 4 NPDU



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NPDU
Octets Meaning
7 6 5 4 3 2 1 0
1 Version (Always 0x01)
1 NPCI - Control Information
Variable APDU



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Keyword List
APDU BBMD BVLC BVLL DADR DNET Encoding I-Am LSAP MAC NPCI NPDU NSAP NSDU SA SADR SNET

Device Profiles

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Glossary