Creating BACnet value objects from the Library

The following BACnet objects are automatically created when you drag the corresponding function block from the Library to the Programming editor. These BACnet objects cannot be created independently.

BACnet object	Description	Function block
ASchedule	Analog scheduler	R_ASCHED
BSchedule	Binary scheduler	R_BSCHED
MSchedule	Multistate scheduler	R_MSCHED
Controller	Loop object / PID	CTR
CmnEvt	Aggregated state	CMN_EVT
MCalcVal	Optimum start stop control	OSSC
AConfVal	Read analog	R_A
ACalcVal	Write analog	W_A
APrcVal	Command analog	CMD_A
BConfVal	Read binary	R_B
BCalcVal	Write binary	W_B
BPrcVal	Command binary	CMD_B
MConfVal	Read multistate	R_M
MCalcVal	Write multistate	W_M
MPrcVal	Command multistate	CMD_M
DaCalcVal	Write date	W_DA
DaCnfVal	Read date	R_DA
ICalcVal	Write time	W_TI
ICnfVal	Read time	R_TI
DaTiCalcVal	Write date time	W_DATI
DaTiCnfVal	Read date time	R_DATI
TiCalcVal	Write time of day	W_TIDAY
TiCnfVal	Read time of day	R_TIDAY
No info	Write signed	W_SG
No info	Read signed	R_SG
UCalcVal	Write unsigned	W_UNSG
UCnfVal	Read unsigned	R_UNSG
MTrgVal	Write multistate for present value	W_MPRVAL
ICalcVal	Write double integer value	W_DINT
ICnfVal	Read double integer value	R_DINT

Create a BACnet value object from the Library

Drag a function block from the Function blocks folder in the Library to the chart.
Library

A BACnet value object is created and assigned. You can change the object type of the BACnet value object.

Change a BACnet object type assigned to a function block

Select a function block in the Programming editor.
Open the Properties tab.
Open the Properties tab of the selected element.
Element properties tab
Click Block and select the BACnet object type in the BACnet object type field.
Analog/Binary/Multistate Config Value: Typically used for configuration data, such as a setpoint.
Analog/Binary/Multistate Calculated Value: Typically used for providing a calculated result on BACnet.
Analog/Binary/Multistate Process Value: Typically used for reading or commanding an object by several sources, such as plant operating mode.
None: No new object is generated. The previous object is deleted.

The new object is generated and the previous object is deleted.

When you delete the function block which accesses the automatically generated BACnet object, the BACnet object is also deleted.
When you delete the function block which accesses a BACnet object from a field device, the BACnet object is not deleted, but marked as not being used in the chart anymore.