Part 2. Functional Specifications
DCM014A51 Design Guide 53
2. Unit On_Off Status
Member number: 2
Object name: Unit On_Off Status
Object type: Binary Input
Description: Monitors the indoor unit on/off status.
Present_Value property:
ACTIVE: On
INACTIVE: Off
Notes:
1. The IN_ALARM flag of the Status_Flags property of this object for an indoor unit in error
is not TRUE. To detect the occurrence of an error, always refer to the value of the Alarm
Status object.
2. Even when the indoor unit is in error, the operating status remains at Operating (the
value of the Present_Value property remains ACTIVE).
3. Alarm Status
Member number: 3
Object name: Alarm Status
Object type: Binary Input
Description: Monitors the indoor unit alarm status.
Present_Value property:
ACTIVE: Alarm
INACTIVE: Normal
Notes:
"Alarm" means the indoor unit is "stopped" due to error.
The contents of the Description property are as follows:
Error: Error code (2 or 5 characters)
Normal: 00
4. Operation Mode
Member number: 4
Object name: Operation Mode
Object type: Multistate Value
Description: Monitors/configures the indoor unit operation mode.
Present_Value property:
1: Cool
2: Heat
3: Fan
4: Dry
Notes:
1. Relinquish_Default property is fixed to "1".
2. When a command that cannot be executed is issued to an indoor unit without the
changeover option, the command is delivered, and the operation determined by the
indoor unit.
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