Terms - Mitsubishi Electric MELSEC iQ-R User Manual

TERMS

Unless otherwise specified, this manual uses the following terms.
TERMS
BACnet
BACnet controller
BACnet device
BACnet module
BACnet workstation
COV
Data block
DeviceInstanceNo
Engineering tool
Event
EventState
Index number
Instance number
Join
Leave
Object
Object type number
ObjectIdentifier
ObjectType
OutOfService
PresentValue
Priority
Property
PropertyIdentifier
Reliability
RJ71BAC96
Service
Description
A communication standard for building automation and control network established by ASHRAE (American Society of
Heating, Refrigerating and Air-Conditioning Engineers) in 1995.
This indicates a system configured with BACnet.
A controller that provides input/output information of a BACnet system as a lower-level system.
A device connected to a BACnet system.
An abbreviation for MELSEC iQ-R series BACnet module.
A central monitoring device that controls and monitors the state of a BACnet system as an upper-level system.
An abbreviation for 'Change Of Value'.
A BACnet service that notifies the change of a PresentValue or a StatusFlags to a BACnet device at the timing of the
change.
An area that is assigned to buffer memory to read/write property values or receive data of a BACnet device using a
BACnet module.
An instance number for a BACnet device.
An instance number is assigned to each BACnet device to identify each BACnet device.
A tool for setting, programming, debugging, and maintaining programmable controllers.
For the supported tools, refer to the following manual.
MELSEC iQ-R Module Configuration Manual
A communication specification defined in the BACnet standard.
A property that indicates an event status. This property links with a Reliability property and manages event status.
A number to identify the property elements of an array.
A number is assigned for each BACnet device and object type. With this number, BACnet services can be shared in a
BACnet system.
To notify the existence of a BACnet controller itself to a BACnet workstation and other BACnet controllers, and to join a
BACnet system.
A method to join a BACnet and its procedure varies depending on the BACnet standard.
To leave the BACnet system.
Information related to input/output or internal status in a BACnet device.
This indicates a BACnet object.
An identifier to distinguish each ObjectType.
An identifier of each object that consists of an object type and its instance number.
A type of a BACnet object.
A property that indicates a BACnet device is not available. When this property is True, an input/output device is
physically disconnected.
A property that indicates current value. This property is a main property that handles input/output values which are
related to each object.
A property that indicates priority.
Detail information and attribute of each object.
An object is configured with various properties. The status of a property may affects other properties, and consequently
a control status is changed.
An identifier that distinguishes the type of a property.
A property that indicates reliability. This property observes input/output devices if their status is normal or error.
An abbreviation for RJ71BAC96 BACnet module.
A function to share information between a BACnet device and external BACnet devices.
This indicates a BACnet service.
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