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ENGLISH
Functional Specifications ACP BACnet
Detailed Explanation of Object
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.
Run/Stop (Setting)
Point number: 1
Object name: StartStopCommand_XXX (XXX: Indoor/Vent/AHU 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.
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