Application Datatype
From BACnet Wiki
Application Datatypes (or colloquially, Application Tags) have a fixed meaning for each tag number. See the table below.
See Context Tags for the alternative encodings.
Also known as Primitive Datatypes
Note that Proprietary Datatypes can only be constructed using these Application Datatypes
| Tag Number | Description |
| 0 | Null |
| 1 | Boolean |
| 2 | Unsigned Integer (1) |
| 3 | Signed Integer |
| 4 | Real |
| 5 | Double |
| 6 | Octet String |
| 7 | Character String |
| 8 | Bit String |
| 9 | Enumerated |
| 10 | Date |
| 11 | Time |
| 12 | BACnetObjectIdentifier |
| 13 | Reserved |
| 14 | Reserved |
| 15 | Reserved - Indicates that the following Octect contains an 8-bit Tag Number |
Notes:
(1) Unsigned integers can be
Unsigned8
Unsigned16
Unsigned32
BACnet Specification, Section 20.2.1.4, page 378
Also: BACnet Specification, page 407
| APDU BBMD BVLC BVLL DADR DNET Encoding I-Am LSAP MAC NPCI NPDU NSAP NSDU SA SADR SNET |
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