LG PQNFB17B0 - Manual (Page 75)

Detailed Explanation of Object
Detailed Explanation of Object
1) Common to All Objects
Objects related to the air conditioner in communication are treated on the BACnet as described
below.
- Air Conditioner in Normal Communication
Other BACnet devices can access each object related to the air conditioner.
- Air Conditioner Unconnected
It seems to other BACnet devices that no objects related to the air conditioner exist.
Therefore, when the ReadProperty/WriteProperty service is received, the following ErrorPDU will
be returned.
Error class: OBJECT; Error type: UNKNOWN_PROPERTY
- Air Conditioner Communication Error
Other BACnet device can access the objects related to the air conditioners, but the
Present_Value Property will be read in a value immediately before the communication error.
2) Run/Stop (Setting)
Point number: 1
Object name: StartStopCommand_XXX (XXX: A/C unit address)
Object type: Binary Output
Meaning: This object is used to give Run/Stop commands to the air conditioner.
Present_Value property:
ACTIVE: Run command
INACTIVE: Stop command
Remarks: 1. The command executed is transmitted to the A/C regardless of the status of the A/C.
2. Present_Value property will not be used if a property has never been set in the past.
3) Run/Stop (Status)
Point number: 2
Object name: StartStopStatus_XXX (XXX: A/C unit address)
Object type: Binary Input
Meaning: This object is used to monitor the Run/Stop status of the air conditioner.
Present_Value property:
ACTIVE: Run
INACTIVE: Stop
Remarks: If there is an operation error, the Present_Value property will be set to ACTIVE
regardless of whether the A/C is in operation or not.
Installation/Owner Manual 75
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