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1 FUNCTIONS
1.1 BACnet Object Function
Operation of a BACnet module
■ Operation at startup
At the startup of a BACnet module, the module writes values, which are saved in the internal memory before powering OFF
(or resetting) the module, to the STATUS in the buffer memory.
■ Cyclic operation
A BACnet module periodically
*1
reads a CONTROL in the buffer memory and applies the following processing result to the
internal memory.
*1 For the reading cycle, refer to the following section.
Page 264 Loading buffer memory
■ Another operation
When the value of any of the following properties is changed, a BACnet module writes the changed value to the STATUS in
the buffer memory.
• LimitEnable property
• EventEnable property
• StatusFlags property
• EventState property
• AckedTransitions property
*1 When '1' is set to "OutOfServiceControl" in [Settings] [Basic Information] [BACnet Detail Setting] button "Interface", the value of an OutOfService
property is stored. (Page 281 Interface)
*2: The value to be stored to the PresentValue property varies depending on the value set to "PulseDirectInput" in [Settings] [Basic Information] [BACnet
Detail Setting] button "Interface". (Page 281 Interface)
START
END
YES
NO
NO
YES
OutOfServicie=1
Reliability=0
Read the CONTROL
Read a pulse counter value and
update the PresentValue
*2
Set the OutOfService property
*1
Set NoFaultDetected to the
Reliability property
Set the read value to
the Reliability property
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