Chapter 3 – Point Database
Chapter 3 – Point Database
Chapter 3 presents a description of the BACnet VAV Controller — Electronic Output point database, including point descriptors, point addresses, and a listing of applications in which each point is found.
Descriptor | Address1 | Application | Description | |
CTLR ADDRESS | 01 | All | Identifies the controller on the FLN trunk. | |
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APPLICATION | 02 | All | Identification number of the program running in the controller. | |
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RMTMP OFFSET | 03 | All | Compensates for deviations between the value of ROOM | |
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| TEMP and the actual room temperature. This corrected value | |
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| is displayed in CTL TEMP. RMTMP OFFSET + ROOM TEMP | |
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| = CTL TEMP | |
ROOM TEMP | {04}2 | All | Actual reading from the room temperature sensor. | |
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HEAT.COOL | {05} | All except | Current mode of operation for applications that can be in | |
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| 2560, 2597 | either a heating mode or a cooling mode. | |
DAY CLG STPT | 06 | All except 2597 | The temperature setpoint in degrees that the controller | |
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| maintains during day periods in cooling mode if a room | |
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| temperature sensor setpoint dial is not present or is not used. | |
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| See STPT DIAL. | |
DAY HTG STPT | 07 | All except 2560, 2597 | The temperature setpoint in degrees that the controller | |
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| maintains during day periods in heating mode if a room | |
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| temperature sensor setpoint dial is not present or is not used. | |
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| See STPT DIAL. | |
NGT CLG STPT | 08 | All except 2597 | The temperature setpoint in degrees that the controller | |
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| maintains during the night periods in cooling mode. | |
NGT HTG STPT | 09 | All except 2560, 2597 | The temperature setpoint in degrees that the controller | |
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| maintains during the night periods in heating mode. | |
RM STPT MIN | 11 | All except 2597 | The minimum temperature setpoint in degrees that the | |
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| controller can use from the setpoint dial. This overrides any | |
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| temperature setpoint from the setpoint dial that falls below this | |
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| minimum. | |
RM STPT MAX | 12 | All except 2597 | The maximum temperature setpoint in degrees that the | |
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| controller can use from the setpoint dial. This overrides any | |
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| temperature setpoint from the setpoint dial that falls above this | |
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| maximum. | |
RM STPT DIAL | {13}2 | All | The temperature setpoint in degrees from the room | |
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| temperature sensor (not available on all temperature sensor | |
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| models). This setpoint will be used for control in day mode | |
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| (heating or cooling) when enabled by STPT DIAL. | |
STPT DIAL | 14 | All except 2597 | YES indicates that there is a room setpoint dial on the room | |
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| temperature sensor and it should be used as the temperature | |
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| setpoint for control in day/occupied mode. NO indicates that | |
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| the appropriate preset setpoint will be used as the | |
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| temperature setpoint for control in day/occupied heating or | |
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| cooling mode. Valid input: YES or NO. | |
AUX TEMP UI 1 | {15} | All except 2561 | Actual reading from a 10K thermistor connected to the | |
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| controller's Ul 1 input. When a thermistor is connected at Ul 1, | |
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| UI 1 is not available. See UI 1. | |
SUPPLY TEMP | {15} | 2561 | Actual reading from a 10K thermistor connected to the | |
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Siemens Industry, Inc. |
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| BACnet ATEC Owner's Manaul | |
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| 4/20/2010 |
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