Mitsubishi Electric MELSEC iQ-R User Manual page 86

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
internal memory.
*1 For the reading cycle, refer to the following section.
Page 264 Loading buffer memory
START
Read the CONTROL
Set the OutOfService property
OutOfServicie=1
NO
Reliability=0
YES
Read a pulse counter value and
update the PresentValue
Set NoFaultDetected to the
Reliability property
END
*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)
■ 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 FUNCTIONS
84
1.1 BACnet Object Function
*1
reads a CONTROL in the buffer memory and applies the following processing result to the
*1
YES
NO
*2
Set the read value to
the Reliability property