Mitsubishi Electric MELSEC iQ-R - Page 26

24
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
*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: For data conversion, refer to the following section.
Page 170 Data conversion
START
YES
NO
NO
YES
END
OutOfServicie=1
Reliability=0
YES NO
Read the CONTROL
Set the OutOfService property
*1
PresentValue
=16-bit integer
ReadthePresentValue
Convert to 32-bit floating point real
number
*2
Read as 32-bit floating point real
number
Set the value to the PresentValue
property
Set the read value to
the Reliability property
Set NoFaultDetected to
the Reliability property