Wireless Sensor Attributes - Metasys - LIT-12011964 - Software Application - System Configuration Tool - 13.2

Metasys SCT: System Configuration Tool Help

Brand
Metasys
Product name
System Configuration Tool
Document type
User Guide
Document number
LIT-12011964
Version
13.2
Revision date
2020-01-21
Language
English

This object contains attributes common to many Metasys system objects. These common attributes are described in the Common Object Attributes section.

Table 1. Wireless Sensor Object Attributes
Name / View Group

Attribute ID Writable (W) Configurable (C)

Attribute Description

Occupancy Time -- Control

2193 W C

Indicates the time in minutes that the Occupied Output (if defined) is overridden to the Occupied state after pushing the Temporary Occupied button on the Transmitter.

Min Value -- Control

69 W C

Indicates the minimum value allowed for the Setpoint. This is the value of the Setpoint attribute when the Setpoint adjust dial on the wireless sensor is in the fully counterclockwise position.

If the Min Value is greater than the Max Value, the Setpoint is forced to the Min Value. Otherwise, these attributes are all used to compute the Setpoint with the following formula:

SP = [(Max Value - Min Value) x (dial position x 0.01)] + Min Value

Max Value -- Control

65 W C

Indicates the maximum value allowed for the Setpoint. This is the value of the Setpoint attribute when the Setpoint adjust dial on the wireless sensor is in the fully clockwise position.

If the Min Value is greater than the Max Value, the Setpoint is forced to the Min Value. Otherwise, these attributes are all used to compute the Setpoint with the following formula:

SP = [(Max Value - Min Value) x (dial position x 0.01)] + Min Value

Reliability Action -- Control

630 W C

Indicates the action taken on the three output references (Zone Temp Output, Setpoint Output, and Occupied Output) when the wireless sensor object goes Unreliable. The actions are No Action or Release commands.

Time Remaining -- Control

1081

Indicates the time remaining before the Occupied Output (if defined) is released from the Occupied state.

Units -- Setup

117 W C

Indicates the engineering units displayed on the user interface (Deg F or Deg C). All temperature and Setpoint values convert to the proper units.

Offset -- Setup

956 W C

Indicates the offset value that is added to the zone temperature reading before updating the Present Value, forcing the Present Value to match a calibrated temperature measured at the wireless sensor.

Transmitter Id -- Setup

623 W C

Indicates the sensor transmitter Id address of the wireless sensor. This setting must match the transmitter Id address switch setting of the wireless sensor.

Property Code -- Setup

624 W C

Indicates the Property Code address of the wireless sensor. This setting must match the Property Code address switch setting of the wireless temperature sensor.

Setpoint -- Status

108

Indicates the Setpoint based on three variables: the Setpoint Adjustment reading (the setpoint adjust dial position) at the wireless sensor, the Min Value, and the Max Value.

The wireless sensor model determines the Setpoint Adjustment. Options include:

  • None

  • Warmer/Cooler (Range = +/- 5 Deg F)

  • Remote Setpoint (Range = 55 to 85 Deg F/13 to 29 Deg C)

If the Min Value is greater than the Max Value, the Setpoint is forced to the Min Value. Otherwise, these attributes are all used to compute the Setpoint with the following formula:

SP = [(Max Value - Min Value) x (dial position x 0.01)] + Min Value

Occupancy Status -- Status

50210

Changes to Occupied after pushing the Temporary Occupied button on the Transmitter, if supported by that model. The Occupied state is held for the minutes defined by the Occupancy Time attribute, or until cancelled by a release command.

Low Battery -- Status

620

Indicates if any wireless sensors defined as children of the Wireless Receiver Objects have a low battery. The Low Battery status is an advanced warning that can occur many days before a wireless sensor ceases to function. You can configure an alarm for this attribute to allow the building operator time to locate the sensor and change the battery. The sensor sends a low battery signal when there is 30 days of battery life left.

Alarm State -- Status

1006

The Alarm State attribute indicates that the object transitioned into alarm or unreliable conditions. This attribute does not appear in the SCT UI.

Zone Temp Output -- Outputs

634 W C

Provides an optional reference to a temperature input object located anywhere on the Metasys network. The temperature input object is commanded when the wireless sensor reports an updated Present Value.

Note:

The Present Value attribute of the referenced object at the Priority Scheduling OST priority writes to the output commands.

The Present Value attribute of the referenced object at the Priority Scheduling OST priority writes the None Data Type value to the release commands.

These operations assume that the referenced object is an output object that has a Present Value that can be written to. Keep this in mind when mapping objects from controllers. You would normally map these points as input points (AI, BI, MSI), but for proper operation you must map the points as output points (AO, BO, MSO).

Setpoint Output -- Outputs

638 W C

Provides an optional reference to a temperature Setpoint object located anywhere on the Metasys network. The temperature Setpoint object is commanded when the wireless sensor reports an updated Setpoint value.

Note:

The Present Value attribute of the referenced object at the Priority Scheduling OST priority writes to the output commands.

The Present Value attribute of the referenced object at the Priority Scheduling OST priority writes the None Data Type value to the release commands.

These operations assume that the referenced object is an output object that has a Present Value that can be written to. Keep this in mind when mapping objects from controllers. You would normally map these points as input points (AI, BI, MSI), but for proper operation you must map the points as output points (AO, BO, MSO).

Occupied Output -- Outputs

640 W C

Provides an optional reference to a binary object located anywhere on the Metasys network. The binary object is commanded to Occupied/Unoccupied when the Occupancy Status attribute changes states.

Note:

The Present Value attribute of the referenced object at the Priority Scheduling optimal start (OST) priority writes to the output commands.

The Present Value attribute of the referenced object at the Priority Scheduling OST priority writes the None Data Type value to the release commands.

These operations assume that the referenced object is an output object that has a Present Value that can be written to. Keep this in mind when mapping objects from controllers. You would normally map these points as input points (AI, BI, MSI), but for proper operation you must map the points as output points (AO, BO, MSO).