Load Extension Attributes - Metasys - LIT-12011942 - Software Application - ODS Server - 10.1

Metasys Open Data Server Help

Brand
Metasys
Product name
ODS Server
Document type
User Guide
Document number
LIT-12011942
Version
10.1
Revision date
2019-10-14
Language
English

Three types of Load Extension objects are available: Binary, Multistate, and Analog. The following table describes the attributes of these objects.

Note: In the Notes column, letters indicate the following: C - Configurable, D - Default Attribute for Display, N - Value Not Required, W - Writable.
Table 1. Load Extension Attributes

Attribute Name

Notes

Initial Value

Values/Options/Range

Description

Active Timer

 

None

Active Timer set

Actual Shed Level

 

0

 

Alarm Reference for Ineligibility

C,N,W

   

Comfort Override

C,W

Inactive

Comfort Override set

This attribute can be set to the following values:

Inactive—No comfort override is in effect.

Override And Release Immediately—Comfort overrides the Load immediately and prevents it from being shed. If the Load is currently shed, the output write is immediately released.

Override But Release After Timer Expires—Comfort overrides the Load immediately and prevents it from being shed. If the Load is currently shed, the output write is released after the Load’s Minimum Shed Time expires. If the Minimum Shed Time has already expired when the command is issued, the output write is immediately released.

Current Available Energy Savings

     

Display Precision

C,W

10ths

Uses Display Precision (Set 0).

Display Reference

C,W

 

Synchronized to the output object’s Display Precision.

Duty Window

W

0

1–65,535

Eligibility

   

Load Eligibility set

Event State

   

Normal, Fault

Expected Shed Level

 

0

 

Input Reference

C

   

Last Shed Date

     

Last Shed Time

     

Load Locked

W

False

 

Load Priority

C,W

10

1–10

Note: Even though the capacity for 10 priority levels is provided, you can implement fewer than 10 levels; in an example with, Priority 1 through Priority 4, Priority 4 loads shed first, and Priority 1 loads shed last.

Load Rating

C,W

    See Load Rating.

Enabled

W

True

 

Maximum Shed Time

C,N,W

15

1–65,535

Undefined = 65,535

Units = Minutes

Minimum Release Time

C,W

5

1–65,535

Units = Minutes

Minimum Shed Time

C,W

5

1–65,535

Units = Minutes

On Release

C,W

Release Immediately

Comfort Override Type set

Shed For DL—Release Issued

Shed For LR—Release Issued

Output Shed Command

   

Set is specified by output’s States Text attribute.

Present Value  

Inactive

Uses BACnet Shed State set.

Rate Units

C,W

kW

Units set

Reliability

 

Reliable

Uses Reliability (Set 503).

Requested Shed Level

W

0

1–65,535

Shed Command

W

None

Shed Command set

Release—Releases the Load. The On Release attribute determines when the Load is released. If the Load is already released, there is no change.

Shed—Immediately sheds a released Load regardless of its Minimum On Time. If the Load is already shed, there is no change.

Shed Duration

W

0

1–65,535

Shed Level Descriptions

 

Shed All Load

Uses Shed Level Descriptions set.

Shed Levels

C,W

1

1–65,535

Shed Status

 

Released

Shed Status set

Shed Ineligibility

   

Load Ineligibility set

Shed Strategy

C,W

0

Shed Strategy set

Time Remaining

C,W

   

Start Time

W

 

BACnet Date Time structure

Status Flags

 

False, False, False, False

In Alarm, Fault, Overridden, Out of Service

The four flags are:

In Alarm—False if the Event State attribute value is Normal; otherwise, the In Alarm flag is True. (Set only by BACnet Intrinsic Alarming.)

Fault—True (1) if the Reliability attribute is not reliable; otherwise, the Fault flag is False.

Overridden—Overridden flag is True if the Present Value is overridden from the hardware source level.

Out of Service—Out of Service flag is True if the Out of Service attribute value is True; otherwise, the Out of Service flag is False.

Units

C,W

 

IP

SI