User manual

Chapter 3 – Point Database
24
Siemens Industry, Inc.
BACnet ATEC Owner's Manaul
125-5050, Rev. AA
4/20/2010
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
Address
1
Application
Description
CTLR ADDRESS 01 All Identifies the controller on the FLN trunk.
APPLICATION 02 All Identification number of the program running in the controller.
RMTMP OFFSET 03 All Compensates for deviations between the value of ROOM
TEMP and the actual room temperature. This corrected value
is displayed in CTL TEMP. RMTMP OFFSET + ROOM TEMP
= CTL TEMP
ROOM TEMP {04}
2
All Actual reading from the room temperature sensor.
HEAT.COOL {05} All except
2560, 2597
Current mode of operation for applications that can be in
either a heating mode or a cooling mode.
DAY CLG STPT 06 All except 2597 The temperature setpoint in degrees that the controller
maintains during day periods in cooling mode if a room
temperature sensor setpoint dial is not present or is not used.
See STPT DIAL.
DAY HTG STPT 07 All except 2560, 2597 The temperature setpoint in degrees that the controller
maintains during day periods in heating mode if a room
temperature sensor setpoint dial is not present or is not used.
See STPT DIAL.
NGT CLG STPT 08 All except 2597 The temperature setpoint in degrees that the controller
maintains during the night periods in cooling mode.
NGT HTG STPT 09 All except 2560, 2597 The temperature setpoint in degrees that the controller
maintains during the night periods in heating mode.
RM STPT MIN 11 All except 2597 The minimum temperature setpoint in degrees that the
controller can use from the setpoint dial. This overrides any
temperature setpoint from the setpoint dial that falls below this
minimum.
RM STPT MAX 12 All except 2597 The maximum temperature setpoint in degrees that the
controller can use from the setpoint dial. This overrides any
temperature setpoint from the setpoint dial that falls above this
maximum.
RM STPT DIAL {13}
2
All The temperature setpoint in degrees from the room
temperature sensor (not available on all temperature sensor
models). This setpoint will be used for control in day mode
(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
temperature sensor and it should be used as the temperature
setpoint for control in day/occupied mode. NO indicates that
the appropriate preset setpoint will be used as the
temperature setpoint for control in day/occupied heating or
cooling mode. Valid input: YES or NO.
AUX TEMP UI 1 {15} All except 2561 Actual reading from a 10K thermistor connected to the
controller's Ul 1 input. When a thermistor is connected at Ul 1,
UI 1 is not available. See UI 1.
SUPPLY TEMP {15} 2561 Actual reading from a 10K thermistor connected to the