Multi-State Input (Mi) Object - Mitsubishi Electric MELSEC iQ-F Series User Manual

Multi-State Input (MI) object

This object handles multiple-state input.
Property list
The following table lists available properties for the Multi-State Input object.
Additionally, the availability of reading/writing data from/to a BACnet device is shown in the following table.
R: Read-only, W: Read/Write
PropertyID Property
36 EventState
74 NumberOfStates
75 ObjectIdentifier
77 ObjectName
79 ObjectType
81 OutOfService
*1
85 PresentValue
103 Reliability
110 StateText
111 StatusFlags
*2
371 PropertyList
*1 Reliability=2(OverRange) if Reliability is 0 when PresentValue changes from within the range of NumberOfStates to out of the range of
NumberOfStates.
Reliability=0(NoFaultDetected) if Reliability is 2 when PresentValue changes from out of the range of NumberOfStates to within the
range of NumberOfStates.
Reliability=3(UnderRange) if Reliability is 0 when PresentValue changes from within the range of NumberOfStates to 0.
Reliability=0(NoFaultDetected) if Reliability is 3 when PresentValue changes from 0 to within the range of NumberOfStates.
When Reliability is other than the above, the value of Reliability does not change. The same applies when OutOfService changes from
TRUE to FALSE and the buffer memory is updated.
(Reliability=1 remains if Reliability is 1 when PresentValue changes from within the range of MaxPresValue to out of the range of
MaxPresValue (or 0)).
(Reliability=1 remains if Reliability is 1 when PresentValue changes from out of the range of MaxPresValue (or 0)) to within the range of
MaxPresValue.
*2 Only ANSI/ASHRAE Standard 135-2016 and ANSI/ASHRAE Standard 135-2012 are supported.
Buffer memory format of the Multi-State Input object
For the format of the properties assigned to the buffer memory, refer to the following.
Page 95 BACnet communication Multi-state Input
Ethernet module operation
■Operation at startup
For the startup operation, refer to the following.
Page 22 Ethernet module operation
Setting using a program
For the setting using the program, refer to the following.
Page 26 Setting using a program
Data type
Enumerated
Unsigned
BACnetObjectIdentifier
CharacterString
Enumerated
BOOLEAN
Unsigned
Enumerated
BACnetARRAY[N]ofCharacterString
BitString
BACnetARRAY[N]ofBACnetPropertyIdenti
fier
R/W Description
R Indicates the event status.
R Indicates the number of states that can be
obtained by PresentValue.
R Indicates the ID to identify the object.
R Indicates the object name.
R Indicates the object type.
W Indicates whether the device is
disconnected from the physical input.
W Indicates the logical state of one of the
multiple states of the input.
R Indicates reliability.
R Indicates the text for the state.
R Indicates the object status.
R Indicates the property list.
4 FUNCTIONS
4.2 BACnet Object Function
4
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