Area

Auto Heat Cool Input

Referencer/ Multi-State

This value specifies the explicit heating or cooling mode of the area or grants permission to area control to dynamically determine the heating or cooling mode of the area. This property directly impacts the value of the Heat Cool mode property. If the value of this property is heating or cooling, then the Heat Cool mode is set to heating or cooling respectively. If the value of this property is Auto, the Heat Cool mode will be whatever Area control determines the mode should be.

Coastdown Cool Rate

Numeric

This value is the rate (in minutes/degree) at which the area temperature last transitioned from the occupied cooling setpoint value to the occupied cooling setpoint value plus 2 degrees F. This rate is calculated from the point in time at which the area’s mode went from occupy to optimal stop (or from occupy to unoccupy if optimal stop is disabled) until the point in time that the occupied cooling setpoint plus 2 degrees F is achieved.

Coastdown Heat Rate

Numeric

This value is the rate (in minutes/degree) at which the area temperature last transitioned from the occupied heating setpoint value to the occupied heating setpoint value minus 2 degrees F. This rate is calculated from the point in time at which the area’s mode went from occupy to optimal stop (or from occupy to unoccupy if optimal stop is disabled) until the point in time that the occupied heating setpoint minus 2 degrees F is achieved.

Control Event Class

Numeric

Contains the Alarm and Message Routing Class number (1–20) that is used to route messages when this object is controlled.

Delta Temp

Numeric

This value indicates the minimum difference between the indoor and outdoor temperatures (outdoor must be less than indoor) required to allow night economizer operation. If the delta temperature is set to 0, Area control will ignore the value and operate as though the delta temperature were always suitable for night economizer operation.

Floor Percentage

Numeric

Indicates the relative size (as a percentage of 0–100%) of the area in relation to the other areas on the same floor.

Floor Position

Numeric

Indicates the relative position of the area on the floor.

Floor Reference

Object Ref

Indicates the device and object ID of the floor object instance associated with this area.

Hi Comfort Band

Referencer/ Numeric

If the area is cooling and either demand limiting or duty cycling, this setpoint will be used in place of the occupied cooling setpoint.

Last Control Date Time

Date/Time Numeric

This indicates the date and time when the present value property of this object was last controlled.

Lighting Control Date Time

Date/Time Numeric

Displays the date and time of the last lighting control action occurred.

Lighting Value

Multi-State

Controls/represents the current lighting mode of the area.

Low Comfort Band

Referencer/ Numeric

If the area is heating and either demand limiting or duty cycling, this setpoint will be used in place of the occupied heating setpoint.

Mode: Heat/Cool

Multi-State

Indicates whether the area is currently in the heating or cooling mode.

Night Econ

Referencer/ Binary

Indicates whether or not night economizing is enabled.

Object Identifier

Object ID

Unique hexadecimal ID of this object. This ID is used internally to identify the object.

Object Type

Multi-State

Designates object’s type (i.e., analog input, binary output, TCM, PCM, etc.).

Occ Cool Setpoint

Referencer/ Numeric

The temperature to be maintained (i.e., the setpoint) in the area when the area is occupied and cooling. This value is also used as a target value for optimal start and optimal stop.

Occ Heat Setpoint

Referencer/ Numeric

The temperature to be maintained (i.e., the setpoint) in the area when the area is occupied and heating. This value is also used as a target value for optimal start and optimal stop.

Occupied Diff

Numeric

Defines the temperature control boundaries for the Occupied Temperature Control algorithm. When the area temperature is above/below the occupied cooling/heating setpoint minus/plus the differential value, the area members are enabled (depends on the type of equipment in the area). When the area temperature is below/above the occupied cooling/heating setpoint minus/plus the differential value, the members are disabled.

Outdoor Sensor

Referencer/ Numeric

This value is the current outdoor air temperature.

Present Value

Multi-State

Current value of the Area. Possible values are Occupy, Unoccupy, Optimal Start, Optimal Stop, and Shutdown.

Save Temp [1-5]

Numeric

This array allows Area Control to store temperature values that are associated with a specific area. Save Temp [1] is used to save the temperature of the area at the time it went into optimal start. Save Temp [2] is used to save the filtered outside air temperature at the time the area went into optimal start. Save Temp [3] is used to save the temperature of the area at the time it went into optimal stop. Save Temp [4] is used to save the filtered outside air temperature at the time the area went into optimal stop. Save Temp [5] is used to save the area temperature at the start of the 15 minute intervals as timed via Save Time [5].

Save Time [1-5]

Numeric

This array allows Area Control to store time values that are associated with a specific area. Save Time [1] is used to save the time that the area went into optimal start. Save Time [2] is used to save the time that the area went occupied. Save Time [3] is used to save the time of the area went into optimal stop. Save Time [4] is used to save the time the area went to unoccupied. Save Temp [5] is used to save the time of the start of the 15 minute intervals. These intervals are used to check for ramp rate flattening.

Setpoint

Numeric

This is the current temperature setpoint for the area.

Space Sensor

Referencer/ Numeric

This value is the current temperature of the area.

Startup Cool Long Rate

Numeric

This is the same as the Startup Cool Rate except that it is only for use after "long" periods (greater than 24 hours) of unoccupancy, which has allowed an area’s contents to heat up and create a "thermal flywheel" who’s inertia needs to be compensated for specially.

Startup Cool Rate

Numeric

This value is the rate (in minutes/degree) at which the area temperature last transitioned from the unoccupied cooling setpoint value to the occupied cooling setpoint value. The rate is calculated from the point in time at which the area’s mode went from unoccupy to optimal start (or from unoccupy to occupy if optimal start is disabled) until the point in time that the occupied cooling setpoint is achieved.

Startup Heat Long Rate

Numeric

This is the same as the Startup Heat Rate except that it is only for use after "long" periods (greater than 24 hours) of unoccupancy, which has allowed an area’s contents to cool off and create a "thermal flywheel" who’s inertia needs to be compensated for specially.

Startup Heat Rate

Numeric

This value is the rate (in minutes/degree) at which the area temperature last transitioned from the unoccupied heating setpoint value to the occupied heating setpoint value. The rate is calculated from the point in time at which the area’s mode went from unoccupy to optimal start (or from unoccupy to occupy if optimal start is disabled) until the point in time that the occupied heating setpoint is achieved.

Timed Override Duration

Numeric

This value specifies the amount of time that a timed override will remain active after someone makes a timed override start request from a zone sensor or workstation. If someone makes a cancel request before the default time has expired the timed override will get released.

Default: 120 minutes

Valid Range: 0-999 minutes

Timed Override Enabled

Binary

This property specifies if Tracer Summit can accept timed override requests from workstations, operator displays or unit controllers. With a disabled value, Tracer Summit will not process any timed override start requests or cancels. If enabled, Tracer Summit will evaluate timed override requests and change the present value of the Area if the priority array for the present value allows.

Default: Enabled

0=Enabled, 1=Disabled

Timed Override Event Class

Numeric

This property indicates the event class to which the BCU sends timed override start, cancel and expired messages. The event receivers associated with this event class will receive the message, as set up in site configuration.

Timed Override In Control

Binary

This property has a value of "In Control" if the area has a present value of "Occupy" because of a timed override request. Three conditions will cause a value of "Not in Control": if no one requested a timed override, if something else (such as a schedule) has the area occupied, and if something else has control of the area at a higher priority level.

To determine the total time in timed override for the area, use this property as the property reference for a Totalization Calculation Object.

0= Not In Control, 1=In Control

Timed Override Active

Binary

This property indicates if any user has requested timed override control. The value will remain "Active" from the time someone makes a request until the default duration expires or someone makes a cancel request.

0=Not Active 1=Active

Timed Override Request: Ref

Referencer

This property allows the area to accept a timed override request from any binary property in Tracer Summit. The request will start when the referenced property changes from a state of "zero" to "one." Changing the state from "one" back to "zero" will not cancel a request. The Tracer Summit Library has a listing of the text strings for the "zero" and "one" states for each binary property.

0=Normal, 1= Timed Override

Timed Override Time Remaining

Numeric

This value shows the amount of time left until a timed override expires. The value will go to zero when the override expires or when a user requests a cancel.

0-999 minutes

Unocc Cool Setpoint

Referencer/ Numeric

The temperature to be maintained (i.e., the setpoint) in the area when the area is unoccupied and cooling.

Unocc Heat Setpoint

Referencer/ Numeric

The temperature to be maintained (i.e., the setpoint) in the area when the area is unoccupied and heating.

Unoccupied Diff

Numeric

Defines the temperature control boundaries for the Night Heating/Cooling Control algorithm. When the area temperature is above/below the unoccupied cooling/heating setpoint minus/plus the differential value, the area members are enabled (depends on the type of equipment in the area). When the area temperature is below/above the unoccupied cooling/heating setpoint minus/plus the differential value, the members are disabled.

Update Tag

Numeric

Value indicating last edit change of this object.