ENV 1805-1 : 1998

Contents
Clause
ANSI/ASHRAE Standard - BACnet
Foreword
1. Purpose
2. Scope
3. Definitions
4. BACnet Protocol Architecture
5. The Application Layer
6. The Network Layer
7. Data Link/Physical Layers: ISO 8802-3 ("Ethernet")
    LAN
8. Data Link/Physical Layers: ARCNET LAN
9. Data Link/Physical Layers: Master-Slave/Token
    Passing (MS/TP) LAN
10. Data Link/Physical Layers: Point-to-Point (PTP)
11. Data Link/Physical Layers: LonTalk LAN
12. Modeling Control Devices as a Collection of Objects
13. Alarm and Event Services
14. File Access Services
15. Object Access Services
16. Remote Device Management Services
17. Virtual Terminal Services
18. Error, Reject, and Abort Codes
19. Command Prioritization
20. Encoding BACnet Protocol Data Units
21. Formal Description of Application Protocol Data Units
22. Conformance and Specification
23. Extending BACnet to Accommodate Vendor Proprietary
    Information
24. Network Security
25. References
Annex A - Protocol Implementation Conformance Statement
(Normative)
Annex B - Guide to Specifying BADnet Devices (Informative)
Annex C - Formal Description of Object Type Structures
(Informative)
Annex D - Examples of Standard Object Types (Informative)
Annex E - Examples of BACnet Application Services
(Informative)
Annex F - Examples of APDU Encoding (Informative)
Annex G - Calculation of CRC (Informative)
Annex H - Combining BACnet Networks with Non-BACnet Networks
(Normative)
Annex I - Commandable Properties with Minimum On and Off
Times (Informative)

Gives a comprehensive set of messages for conveying encoded binary, and alphanumeric data between devices that include, but not limited to: a) hardware binary input and output values, b) hardware analog input and output values, c) software binary and analog values, d) test string values, e) schedule information, f) alarm and event information, g) files, and h) control logic.