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1 FUNCTIONS
1.1 BACnet Object Function
■ Write operation to an object's own PresentValue property
• When '1' is written to the PVOut of the CONTROL in the buffer memory, a BACnet module reads both values of the
PVPriority and PresentValue of the CONTROL. After the values are read, '1' is written to the PVWritten of the STATUS in
the buffer memory.
• Change the value of the PVWritten of the STATUS in the buffer memory to '0' to read a new value of a PresentValue. To
change the value, use the PVWrittenClear of the CONTROL.
• When a data conversion setting is configured in an object, a BACnet module stores a converted 16-bit signed integer value
to the PresentValue property in the internal memory. (Page 170 Data conversion)
When no data conversion setting is configured in an object, the value of a PresentValue property in the buffer memory is
read as a 32-bit floating point real number value, and the value is stored to the PresentValue property in the internal
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
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