Mitsubishi Electric MELSEC iQ-R User Manual page 73

Buffer memory format of MultiStateValue objects
The following shows the format of properties assigned to the buffer memory.
Additionally, the availability of reading from/writing to a CPU module is shown in the following table.
R: Read-only, W: Write-only, R/W: Read/Write
Offset Name
+0 CONTROL b15
b14
b13
b12
b11 to b8
b7 to b4
b3 to b0
+1 STATUS b15 to b14
b13 to b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
+2 PresentValue b15 to b0

+3
OutOfService

PVWrittenClear
PVOut
PVPriority

Reliability

EventState
AckedTransition ToOffnormal
ToFault
ToNormal
PVWritten
EventEnable ToOffnormal
ToFault
ToNormal
StatusFlags InAlarm
Fault
Overridden
OutOfService
PresentValue
Remarks
0: False, 1: True
• When '1' is set to "OutOfServiceControl" in [Settings]  [Basic
Information]  [BACnet Detail Setting] button  "Interface",
the value of an OutOfService property is stored.
Not used
• A PVWrittenClear and a PVOut operate when one value is
changed from '0' to '1' while the other value is '0'.
• When the value is '1', the PVWritten of the STATUS is changed
to '0'.
• A PVWrittenClear and a PVOut operate when one value is
changed from '0' to '1' while the other value is '0'.
• When a value is changed from '0' to '1', a PresentValue
property value is written to the PriorityArray whose index
number is 'PVPriority + 1'.
A Priority for writing to PresentValue property
(The value to which '1' is added is used for Priority.)
Not used
0: NoFaultDetected
1: NoSensor
2: OverRange
3: UnderRange
4: OpenLoop
5: ShortedLoop
6: NoOutput
7: UnreliableOther
8: ProcessError
9: MultiStateFault
10: ConfigurationError
Not used
0: Normal
1: Fault
2: Offnormal
3: HighLimit
4: LowLimit
5: LifeSafetyAlarm
0: False, 1: True
0: False, 1: True
0: False, 1: True
• When the PresentValue property value is written, the value
becomes '1'.
• When changing the value to '0', always use the
PVWrittenClear of a CONTROL.
0: False, 1: True
0: False, 1: True
0: False, 1: True
0: False, 1: True
0: False, 1: True
Always 0
0: False, 1: True
16-bit value
• This property can be written from a CPU module only when
using the object as a MultiStateInput object.
Not used
1.1 BACnet Object Function
1
R/W
R/W
*1
R
R/W

1 FUNCTIONS
71