Bacnet Object Modeling - WEG bacnet CFW701 User Manual

5 BACNET OBJECT MODELING

A BACnet object represents physical or virtual equipment information, as a digital input or parameters. The
CFW701 presents the following object types:
ANALOG INPUT;

ANALOG OUTPUT;

ANALOG VALUE;

BINARY INPUT;

BINARY OUTPUT;

BINARY VALUE;

DEVICE OBJECT.

Each object type defines a data structure composed by properties that allow the access to the object
information. The Table 5-1Table 5-1 shows the implemented properties for each CFW701 object type.
Property
Object Identifier
Object Name
Object Type
System Status
Vendor Name
Vendor Identifier
Model Name
Firmware Revision
Application Software Version
Description
Protocol Version
Protocol Revision
Protocol service supported
Protocol object types Supported
Object List
Max APDU Len Accepted
Segmentation Supported
APDU timeout
Number of APDU retries
Max Master
Max info frames
Device Address Binding
Database revision
Present Value
Description
Status Flags
Event State
Reliability
Out of Service
Units
Priority Array
Relinquish Default
Polarity
* The Priority Array and Relinquish Default properties are available for objects with type C (commandable)
access.
Each object presents an identifier unique in the network, called Object Identifier. The Object Identifier property is
composed by two parts:
Table 5-1: Properties of the BACnet objects
ANALOG ANALOG
DEVICE
INPUT OUTPUT
X X
X X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BACnet Object Modeling
ANALOG BINARY
VALUE INPUT
X X X
X X X
X X X
X X X
X X X
X X X
X X X
X X X
X X X
X X X
X X
X X
X
BINARY BINARY
OUTPUT VALUE
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X
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